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Cephalopoda
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Textulariina
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Vermes
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Plantae
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Pliocene
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Cimmerian (1)
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Salt Lake Formation (1)
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upper Neogene (2)
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Paleogene
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Claron Formation (1)
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Eocene
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Green River Formation (3)
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lower Eocene
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Ypresian
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London Clay (2)
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middle Eocene
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Aycross Formation (1)
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Sparta Sand (1)
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upper Eocene
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Jackson Group (1)
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Poway Conglomerate (1)
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Ilerdian (1)
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lower Paleogene (2)
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Oligocene
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Fontainebleau Sandstone (1)
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Hemlock Conglomerate (1)
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lower Oligocene
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middle Oligocene (1)
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Vicksburg Group (1)
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Paleocene
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lower Paleocene
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Danian (3)
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K-T boundary (1)
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upper Paleocene (1)
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Tyonek Formation (1)
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Wasatch Formation (2)
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Wilcox Group (4)
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Yahuarango Formation (1)
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Shahejie Formation (1)
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upper Cenozoic (1)
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Mesozoic
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Bisbee Group (1)
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Condrey Mountain Schist (2)
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Cretaceous
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Alisitos Formation (1)
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Chonta Formation (2)
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Comanchean
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Edwards Formation (3)
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Georgetown Formation (1)
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Glen Rose Formation (3)
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Paluxy Formation (1)
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Rodessa Formation (1)
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Travis Peak Formation (5)
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Trinity Group (1)
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-
Dakota Formation (10)
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Hue Shale (1)
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Kuskokwim Group (2)
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Logan Canyon Formation (2)
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Lower Cretaceous
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Agrio Formation (4)
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Albian (23)
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Aptian
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Shuaiba Formation (1)
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-
Barremian (11)
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Berriasian (55)
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Burro Canyon Formation (4)
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Cadomin Formation (1)
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Cedar Mountain Formation (9)
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Christopher Formation (1)
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Cloverly Formation (3)
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Edwards Formation (3)
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Georgetown Formation (1)
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Gething Formation (1)
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Glen Rose Formation (3)
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Hauterivian (13)
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Hosston Formation (4)
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Lakota Formation (1)
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Mannville Group (4)
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Missisauga Formation (4)
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Mowry Shale (3)
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Neocomian (11)
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Paluxy Formation (1)
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Pearsall Formation (1)
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Pebble Shale (1)
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Purbeckian (6)
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Rodessa Formation (1)
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Sligo Formation (1)
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Speeton Clay (2)
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Thamama Group (4)
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Travis Peak Formation (5)
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Trinity Group (1)
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Valanginian (38)
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Wealden (3)
-
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Mancos Shale (7)
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Middle Cretaceous
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Bhuj Series (1)
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Potomac Group (2)
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Santana Formation (1)
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Upper Cretaceous
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Buda Limestone (1)
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Campanian
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Dinosaur Park Formation (1)
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Cardium Formation (1)
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Castlegate Sandstone (1)
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Cenomanian (18)
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Coniacian (3)
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Crevasse Canyon Formation (1)
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Duwi Formation (1)
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Ferron Sandstone Member (2)
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Frontier Formation (4)
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Gallup Sandstone (1)
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Gulfian
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Austin Group (1)
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Eagle Ford Formation (18)
-
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Hornbrook Formation (2)
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Kaiparowits Formation (1)
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Kanguk Formation (1)
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K-T boundary (1)
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Lance Formation (2)
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Laramie Formation (1)
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Maestrichtian (9)
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Menefee Formation (1)
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Mesaverde Group (7)
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Neuquen Group (2)
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Niobrara Formation (4)
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Raritan Formation (1)
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Santonian (1)
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Senonian (6)
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Straight Cliffs Formation (3)
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Tropic Shale (2)
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Turonian (8)
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Tuscaloosa Formation (2)
-
Vivian Formation (2)
-
Wahweap Formation (2)
-
Williams Fork Formation (1)
-
-
Vraconian (1)
-
-
Franciscan Complex (16)
-
Glen Canyon Group (2)
-
Great Valley Sequence (20)
-
Jurassic
-
Bazhenov Formation (30)
-
Birkhead Formation (1)
-
Bonanza Group (1)
-
Carmel Formation (5)
-
Coast Range Ophiolite (8)
-
Fernie Formation (3)
-
Heather Formation (17)
-
Lower Jurassic
-
Carixian (1)
-
Dunlin Group (2)
-
Hettangian (10)
-
lower Liassic (13)
-
middle Liassic (10)
-
Nordegg Member (1)
-
Pliensbachian (12)
-
Portland Formation (1)
-
Sinemurian (11)
-
Toarcian
-
lower Toarcian (1)
-
-
upper Liassic (17)
-
-
Middle Jurassic
-
Aalenian (12)
-
Bajocian
-
Brent Group (13)
-
Etive Formation (1)
-
Ness Formation (1)
-
Rannoch Formation (2)
-
Tarbert Formation (2)
-
-
Bathonian
-
Great Oolite Group (1)
-
-
Callovian (117)
-
Dogger (3)
-
Page Sandstone (2)
-
Summerville Formation (4)
-
Todilto Formation (7)
-
Walloon Coal Measures (2)
-
-
Norphlet Formation (35)
-
Opalinus Clay (3)
-
Oxford Clay (36)
-
San Rafael Group (3)
-
Smartville Complex (1)
-
Solnhofen Limestone (6)
-
Twin Creek Limestone (4)
-
Upper Jurassic
-
Arab Formation (46)
-
Argovian (8)
-
Bossier Formation (18)
-
Bowser Lake Group (14)
-
Brushy Basin Member (28)
-
Buckner Formation (14)
-
Cotton Valley Group (37)
-
Entrada Sandstone (48)
-
Fulmar Formation (34)
-
Galice Formation (26)
-
Hanifa Formation (29)
-
Haynesville Formation (59)
-
Jeanne d'Arc Formation (3)
-
Josephine Ophiolite (24)
-
Josephine Peridotite (4)
-
Kimmeridge Clay (101)
-
Kimmeridgian
-
lower Kimmeridgian (7)
-
upper Kimmeridgian (6)
-
-
La Casita Formation (4)
-
Lusitanian (2)
-
Malm (8)
-
Morrison Formation (176)
-
Naknek Formation (8)
-
Oxfordian
-
lower Oxfordian (6)
-
middle Oxfordian (8)
-
upper Oxfordian (9)
-
-
Portlandian (127)
-
Raghavapuram Shales (2)
-
Salt Wash Sandstone Member (16)
-
Sarayaquillo Formation (3)
-
Schuler Formation (6)
-
Sequanian (5)
-
Smackover Formation (115)
-
Stump Formation (5)
-
Sundance Formation (36)
-
Swift Formation (9)
-
Tithonian (167)
-
Volgian (46)
-
Westwater Canyon Sandstone Member (4)
-
Zuloaga Limestone (1)
-
-
-
Kayenta Formation (1)
-
lower Mesozoic (3)
-
Maiolica Limestone (5)
-
middle Mesozoic (1)
-
Mist Mountain Formation (3)
-
Navajo Sandstone (14)
-
Nugget Sandstone (4)
-
Pucara Group (2)
-
Statfjord Formation (4)
-
Triassic
-
Hallstatt Limestone (1)
-
Lower Triassic
-
Bunter
-
Voltzia Sandstone (1)
-
-
Dinwoody Formation (2)
-
Induan (1)
-
Olenekian (1)
-
Permian-Triassic boundary (1)
-
-
Middle Triassic
-
Anisian (2)
-
Doig Formation (1)
-
Ladinian (1)
-
Muschelkalk (1)
-
-
Moenkopi Formation (2)
-
Montney Formation (1)
-
Red Peak Formation (1)
-
Sherwood Sandstone (1)
-
Shublik Formation (1)
-
Upper Triassic
-
Carnian (3)
-
Chinle Formation (6)
-
Keuper (1)
-
Lockatong Formation (1)
-
Mercia Mudstone (3)
-
Norian (5)
-
Rhaetian
-
Penarth Group (1)
-
-
Sag River Sandstone (1)
-
Yanchang Formation (1)
-
-
-
upper Mesozoic (10)
-
Vaca Muerta Formation (38)
-
Wingate Sandstone (5)
-
Yanshanian (5)
-
-
Paleozoic
-
Acatlan Complex (1)
-
Berea Sandstone (1)
-
Cambrian
-
Upper Cambrian
-
Potsdam Sandstone (1)
-
-
-
Carboniferous
-
Mississippian
-
Barnett Shale (12)
-
Leadville Formation (1)
-
Lower Mississippian
-
Osagian (1)
-
-
Madison Group (2)
-
Middle Mississippian
-
Visean (1)
-
-
Upper Mississippian
-
Chesterian
-
Renault Formation (1)
-
-
Fayetteville Formation (1)
-
Meramecian
-
Sainte Genevieve Limestone (2)
-
-
-
-
Namurian (1)
-
Pennsylvanian
-
Hermosa Group (2)
-
Middle Pennsylvanian
-
Paradox Formation (4)
-
-
Pottsville Group (1)
-
Strawn Series (1)
-
Upper Pennsylvanian
-
Canyon Group (1)
-
-
-
Upper Carboniferous (3)
-
-
Devonian
-
Lower Devonian
-
Shap Granite (1)
-
-
Middle Devonian
-
Givetian (1)
-
Marcellus Shale (6)
-
-
Old Red Sandstone (1)
-
Upper Devonian
-
Frasnian (1)
-
Huron Member (1)
-
Nisku Formation (2)
-
Ohio Shale (1)
-
Palliser Formation (1)
-
Sonyea Group (1)
-
-
-
Honaker Trail Formation (1)
-
lower Paleozoic (2)
-
middle Paleozoic (3)
-
Minnelusa Formation (2)
-
New Albany Shale (2)
-
Ordovician
-
Lower Ordovician
-
Ellenburger Group (1)
-
-
Meguma Group (1)
-
Middle Ordovician (2)
-
Trenton Group (1)
-
Upper Ordovician
-
Bighorn Dolomite (1)
-
Red River Formation (2)
-
Trentonian (1)
-
-
Utica Shale (1)
-
-
Permian
-
Coconino Sandstone (1)
-
Kaibab Formation (1)
-
Khuff Formation (5)
-
Lower Permian
-
Wolfcampian (3)
-
-
Middle Permian (2)
-
Mitu Group (1)
-
Phosphoria Formation (3)
-
Rotliegendes (4)
-
Upper Permian
-
Permian-Triassic boundary (1)
-
Zechstein (12)
-
-
-
Silurian
-
Lower Silurian (2)
-
Upper Silurian
-
Salina Group (1)
-
-
-
Supai Formation (1)
-
Tensleep Sandstone (3)
-
upper Paleozoic
-
Bakken Formation (4)
-
-
Weber Sandstone (2)
-
Wells Formation (1)
-
Woodford Shale (5)
-
-
Phanerozoic (4)
-
Precambrian
-
Archean
-
Neoarchean
-
Jiaodong Group (1)
-
-
Taihua Group (1)
-
-
Johnnie Formation (1)
-
Kingston Peak Formation (1)
-
upper Precambrian
-
Proterozoic
-
Hutuo Group (1)
-
Neoproterozoic
-
Ediacaran (1)
-
Vendian (1)
-
-
Paleoproterozoic
-
Qinling Group (1)
-
-
Sinian (1)
-
-
-
-
-
igneous rocks
-
extrusive rocks (2)
-
igneous rocks
-
carbonatites (2)
-
hypabyssal rocks (3)
-
kimberlite (1)
-
picrite (3)
-
plutonic rocks
-
diabase (4)
-
diorites
-
plagiogranite (3)
-
quartz diorites (2)
-
tonalite (9)
-
trondhjemite (1)
-
-
essexite (1)
-
gabbros (13)
-
granites
-
A-type granites (6)
-
biotite granite (1)
-
granite porphyry (4)
-
I-type granites (1)
-
leucogranite (1)
-
monzogranite (2)
-
S-type granites (1)
-
-
granodiorites (16)
-
lamproite (1)
-
lamprophyres
-
minette (1)
-
-
monzodiorite (1)
-
monzonites (5)
-
pegmatite (3)
-
quartz monzonite (3)
-
syenites
-
alkali syenites (1)
-
shonkinite (1)
-
syenite porphyry (1)
-
-
ultramafics
-
chromitite (1)
-
peridotites
-
harzburgite (1)
-
-
pyroxenite
-
websterite (1)
-
-
-
-
porphyry (3)
-
volcanic rocks
-
adakites (8)
-
andesites
-
andesite porphyry (1)
-
boninite (2)
-
-
basalts
-
alkali basalts
-
spilite (1)
-
trachybasalts (1)
-
-
flood basalts (1)
-
mid-ocean ridge basalts (7)
-
ocean-island basalts (1)
-
shoshonite (4)
-
tholeiite (1)
-
tholeiitic basalt (2)
-
-
basanite
-
ankaramite (1)
-
-
dacites (1)
-
glasses
-
volcanic glass (2)
-
-
latite (1)
-
phonolites (2)
-
pyroclastics
-
hyaloclastite (2)
-
ignimbrite (4)
-
tuff (11)
-
-
rhyolites
-
pantellerite (1)
-
-
tephrite (1)
-
trachyandesites (2)
-
trachytes (1)
-
-
-
ophiolite (41)
-
volcanic ash (3)
-
-
metamorphic rocks
-
metamorphic rocks
-
amphibolites (5)
-
cataclasites (1)
-
gneisses
-
granite gneiss (1)
-
orthogneiss (1)
-
-
marbles (2)
-
metaigneous rocks
-
metabasalt (1)
-
metabasite (4)
-
metagabbro (1)
-
metatuff (1)
-
serpentinite (8)
-
-
metaplutonic rocks (1)
-
metasedimentary rocks
-
metachert (1)
-
metaconglomerate (1)
-
metagraywacke (3)
-
metapelite (1)
-
metasandstone (2)
-
-
metasomatic rocks
-
greisen (2)
-
serpentinite (8)
-
skarn (8)
-
-
metavolcanic rocks (3)
-
migmatites (2)
-
mylonites (5)
-
phyllonites (1)
-
quartzites (5)
-
schists
-
blueschist (2)
-
-
slates (1)
-
-
ophiolite (41)
-
turbidite (33)
-
-
minerals
-
alloys (1)
-
arsenides
-
arsenopyrite (1)
-
-
carbonates
-
ankerite (1)
-
aragonite (6)
-
calcite (40)
-
dolomite (20)
-
magnesian calcite (1)
-
siderite (2)
-
spurrite (2)
-
strontianite (1)
-
thaumasite (1)
-
-
halides
-
chlorides
-
atacamite (1)
-
halite (4)
-
sylvite (1)
-
-
fluorides
-
zinnwaldite (1)
-
-
-
minerals (12)
-
native elements
-
graphite (1)
-
-
organic minerals
-
amber (3)
-
-
oxides
-
brannerite (1)
-
cassiterite (2)
-
goethite (1)
-
hematite (7)
-
ilmenite (1)
-
iron oxides (6)
-
magnetite (4)
-
manganese oxides (1)
-
niobates
-
columbite (1)
-
-
perovskite (1)
-
pitchblende (1)
-
portlandite (1)
-
tantalates
-
tantalite (1)
-
-
uraninite (3)
-
-
phosphates
-
apatite (28)
-
britholite (1)
-
carbonate apatite (1)
-
fluorapatite (1)
-
francolite (1)
-
monazite (3)
-
-
platinum minerals (1)
-
silicates
-
chain silicates
-
amphibole group
-
clinoamphibole
-
glaucophane (1)
-
hornblende (7)
-
nephrite (1)
-
tremolite (1)
-
-
-
jade (1)
-
pyroxene group
-
clinopyroxene
-
aegirine (1)
-
jadeite (1)
-
-
-
tobermorite (2)
-
wollastonite group
-
wollastonite (1)
-
-
xonotlite (2)
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
adularia (1)
-
K-feldspar (7)
-
microcline (1)
-
orthoclase (1)
-
perthite (1)
-
sanidine (1)
-
-
plagioclase
-
albite (2)
-
peristerite (1)
-
-
-
pseudoleucite (1)
-
silica minerals
-
chalcedony (2)
-
opal (1)
-
quartz (19)
-
-
zeolite group
-
thomsonite (1)
-
-
-
orthosilicates
-
nesosilicates
-
britholite group
-
britholite (1)
-
-
garnet group
-
grossular (1)
-
hydrogarnet
-
hibschite (1)
-
hydrogrossular (2)
-
-
-
olivine group
-
monticellite (1)
-
olivine (3)
-
-
spurrite (2)
-
thaumasite (1)
-
titanite group
-
titanite (2)
-
-
zircon group
-
coffinite (3)
-
zircon (127)
-
-
-
sorosilicates
-
epidote group
-
allanite (1)
-
epidote (1)
-
-
lawsonite (1)
-
melilite group
-
gehlenite (2)
-
-
vesuvianite (1)
-
-
-
ring silicates
-
scawtite (2)
-
tourmaline group (2)
-
-
sheet silicates
-
chlorite group
-
chamosite (1)
-
chlorite (16)
-
-
clay minerals
-
allophane (1)
-
dickite (1)
-
kaolinite (20)
-
montmorillonite (2)
-
smectite (32)
-
vermiculite (3)
-
-
corrensite (2)
-
illite (45)
-
mica group
-
biotite (9)
-
celadonite (1)
-
glauconite (8)
-
muscovite (5)
-
phengite (2)
-
phlogopite (1)
-
zinnwaldite (1)
-
-
palygorskite (1)
-
serpentine group
-
berthierine (3)
-
lizardite (1)
-
serpentine (1)
-
-
-
-
sulfates
-
anhydrite (18)
-
barite (1)
-
gypsum (4)
-
thaumasite (1)
-
-
sulfides
-
arsenopyrite (1)
-
bornite (1)
-
chalcopyrite (3)
-
copper sulfides (1)
-
galena (3)
-
iron sulfides (1)
-
laurite (1)
-
molybdenite (4)
-
pyrite (15)
-
sphalerite (4)
-
-
tellurides (1)
-
tungstates
-
scheelite (3)
-
-
uranium minerals (1)
-
vanadates
-
carnotite (1)
-
-
-
Primary terms
-
absolute age (216)
-
Africa
-
African Platform (1)
-
Cape Verde Islands (1)
-
Central Africa
-
Angola (1)
-
Congo Democratic Republic
-
Kinshasa Congo Democratic Republic (1)
-
-
-
Congo Basin (2)
-
East Africa
-
Djibouti (1)
-
Ethiopia (1)
-
Kenya (2)
-
Mozambique (4)
-
Somali Republic (1)
-
Tanzania (12)
-
-
Madagascar (3)
-
North Africa
-
Algeria
-
Laghouat (1)
-
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
High Atlas (2)
-
-
-
Egypt (3)
-
Libya (2)
-
Morocco
-
Moroccan Atlas Mountains
-
High Atlas (2)
-
-
Rif (3)
-
-
Tunisia (7)
-
-
Southern Africa
-
Botswana (1)
-
Karoo Basin (1)
-
Namibia (4)
-
South Africa
-
Bushveld Complex (1)
-
North-West Province South Africa (1)
-
-
-
West Africa
-
Cameroon (1)
-
-
Zambezi Valley (2)
-
-
Antarctica
-
Antarctic Peninsula
-
Graham Land (3)
-
Marguerite Bay (1)
-
-
Ellsworth Land (2)
-
South Shetland Islands
-
King George Island (2)
-
Livingston Island (3)
-
-
West Antarctica (1)
-
-
Arctic Ocean
-
Barents Sea (10)
-
Beaufort Sea (1)
-
Canada Basin (1)
-
Chukchi Sea (1)
-
Kara Sea (1)
-
Laptev Sea (6)
-
Norwegian Sea
-
Haltenbanken (2)
-
Jan Mayen Ridge (1)
-
Voring Plateau (1)
-
-
-
Arctic region
-
Greenland
-
East Greenland (8)
-
Jameson Land (5)
-
Kuhn Island (1)
-
Scoresby Land (1)
-
-
Russian Arctic (11)
-
Svalbard
-
Spitsbergen (3)
-
-
-
Asia
-
Altai Mountains
-
Mongolian Altai (1)
-
-
Altai-Sayan region (1)
-
Amu Darya Basin (2)
-
Amur region (3)
-
Amur Russian Federation
-
Zeya-Bureya Basin (1)
-
-
Arabian Peninsula
-
Bahrain (1)
-
Kuwait (6)
-
Oman
-
Oman Mountains (1)
-
-
Qatar (7)
-
Saudi Arabia
-
Ghawar Field (12)
-
Riyadh Saudi Arabia (1)
-
-
United Arab Emirates
-
Abu Dhabi (12)
-
-
Yemen (4)
-
-
Baikal rift zone (1)
-
Buryat Russian Federation (2)
-
Central Asia
-
Kazakhstan
-
Lake Balkhash (1)
-
-
-
Chukotka Russian Federation
-
Chukchi Peninsula (3)
-
-
Far East
-
Borneo
-
Kalimantan Indonesia (1)
-
-
Burma (1)
-
China
-
Anhui China (1)
-
Bohaiwan Basin (1)
-
Da Hinggan Ling (5)
-
Dabie Mountains (2)
-
Guangdong China
-
Zhujiang River (1)
-
-
Hebei China
-
Beijing China (2)
-
Yanshan Range (3)
-
-
Heilongjiang China (4)
-
Henan China (1)
-
Hubei China (1)
-
Hunan China (3)
-
Inner Mongolia China (7)
-
Jiangxi China (1)
-
Liaoning China
-
Liaodong Peninsula (1)
-
-
Nanling (3)
-
North China Platform (12)
-
Ordos Basin (1)
-
Qiangtang Basin (1)
-
Qinling Mountains (2)
-
Shaanxi China (1)
-
Shandong China
-
Shandong Peninsula (3)
-
-
Shanxi China (1)
-
Sichuan Basin (7)
-
Sichuan China (1)
-
Songliao Basin (3)
-
South China Block (10)
-
Sulu Terrane (3)
-
Taihang Mountains (1)
-
Tancheng-Lujiang Fault (1)
-
Tongling China (1)
-
Xinjiang China
-
Junggar (1)
-
Junggar Basin (5)
-
Tarim Basin (1)
-
-
Xizang China
-
Lhasa Block (2)
-
Lhasa China (1)
-
-
Yangtze Platform (1)
-
Yangtze River valley (1)
-
Zhejiang China (1)
-
-
Indochina (1)
-
Indonesia
-
Kalimantan Indonesia (1)
-
Sumatra (1)
-
-
Japan
-
Hokkaido
-
Hidaka metamorphic belt (1)
-
-
Honshu
-
Fukushima Japan (1)
-
Izu-shichito (1)
-
-
Kurosegawa Zone (1)
-
Shikoku
-
Kochi Japan (1)
-
-
-
Malaysia (1)
-
Mongolia
-
Mongolian Altai (1)
-
-
Thailand
-
Khorat Plateau (1)
-
-
-
Gobi Desert (2)
-
Himalayas
-
Kumaun Himalayas
-
Simla Hills (1)
-
-
-
Indian Peninsula
-
Afghanistan (1)
-
India
-
Andhra Pradesh India (2)
-
Cauvery Basin (3)
-
Gujarat India
-
Kutch India
-
Bhuj India (3)
-
-
-
Himachal Pradesh India
-
Simla Hills (1)
-
-
Madhya Pradesh India
-
Jhabua India (1)
-
-
Pranhita-Godavari Valley (1)
-
Rajasthan India
-
Jaisalmer India (1)
-
-
Tamil Nadu India (1)
-
-
Jammu and Kashmir
-
Kashmir (2)
-
Ladakh (2)
-
-
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Integrated Ocean Drilling Program
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Expedition 324
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intrusions (116)
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Invertebrata
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Insecta
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Brachiopoda
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Articulata
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Echinodermata
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Crinozoa
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Mollusca
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Cephalopoda
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Coleoidea
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Textulariina
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Vermes
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isostasy (5)
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stable isotopes
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Ar-36 (1)
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C-13/C-12 (87)
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O-18 (2)
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O-18/O-16 (80)
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Pb-208/Pb-204 (6)
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Pb-208/Pb-206 (1)
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Re-187/Os-188 (3)
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S-34/S-32 (19)
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Si-29 (1)
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Sr-87/Sr-86 (55)
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lava (17)
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Malay Archipelago
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mantle (24)
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Mediterranean region
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Mesozoic
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Bisbee Group (1)
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Cretaceous
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Alisitos Formation (1)
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Chonta Formation (2)
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Comanchean
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Edwards Formation (3)
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Paluxy Formation (1)
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Rodessa Formation (1)
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Travis Peak Formation (5)
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Trinity Group (1)
-
-
Dakota Formation (10)
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Hue Shale (1)
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Logan Canyon Formation (2)
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Lower Cretaceous
-
Agrio Formation (4)
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Albian (23)
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Aptian
-
Shuaiba Formation (1)
-
-
Barremian (11)
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Berriasian (55)
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Burro Canyon Formation (4)
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Cadomin Formation (1)
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Cedar Mountain Formation (9)
-
Christopher Formation (1)
-
Cloverly Formation (3)
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Edwards Formation (3)
-
Georgetown Formation (1)
-
Gething Formation (1)
-
Glen Rose Formation (3)
-
Hauterivian (13)
-
Hosston Formation (4)
-
Lakota Formation (1)
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Mannville Group (4)
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Missisauga Formation (4)
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Mowry Shale (3)
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Neocomian (11)
-
Paluxy Formation (1)
-
Pearsall Formation (1)
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Pebble Shale (1)
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Purbeckian (6)
-
Rodessa Formation (1)
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Sligo Formation (1)
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Speeton Clay (2)
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Thamama Group (4)
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Trinity Group (1)
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Valanginian (38)
-
Wealden (3)
-
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Mancos Shale (7)
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Middle Cretaceous
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Bhuj Series (1)
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Potomac Group (2)
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Santana Formation (1)
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Upper Cretaceous
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Buda Limestone (1)
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Campanian
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Dinosaur Park Formation (1)
-
-
Cardium Formation (1)
-
Castlegate Sandstone (1)
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Cenomanian (18)
-
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Coniacian (3)
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Crevasse Canyon Formation (1)
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Duwi Formation (1)
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Ferron Sandstone Member (2)
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Frontier Formation (4)
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Gallup Sandstone (1)
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Gulfian
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Austin Group (1)
-
Eagle Ford Formation (18)
-
-
Hornbrook Formation (2)
-
Kaiparowits Formation (1)
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Kanguk Formation (1)
-
K-T boundary (1)
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Lance Formation (2)
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Laramie Formation (1)
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Maestrichtian (9)
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Menefee Formation (1)
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Mesaverde Group (7)
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Neuquen Group (2)
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Niobrara Formation (4)
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Raritan Formation (1)
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Santonian (1)
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Senonian (6)
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Straight Cliffs Formation (3)
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Tropic Shale (2)
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Turonian (8)
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Tuscaloosa Formation (2)
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Vivian Formation (2)
-
Wahweap Formation (2)
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Williams Fork Formation (1)
-
-
Vraconian (1)
-
-
Franciscan Complex (16)
-
Glen Canyon Group (2)
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Great Valley Sequence (20)
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Jurassic
-
Bazhenov Formation (30)
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Birkhead Formation (1)
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Bonanza Group (1)
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Carmel Formation (5)
-
Coast Range Ophiolite (8)
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Fernie Formation (3)
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Heather Formation (17)
-
Lower Jurassic
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Carixian (1)
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Dunlin Group (2)
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Hettangian (10)
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lower Liassic (13)
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middle Liassic (10)
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Nordegg Member (1)
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Pliensbachian (12)
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Portland Formation (1)
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Sinemurian (11)
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Toarcian
-
lower Toarcian (1)
-
-
upper Liassic (17)
-
-
Middle Jurassic
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Aalenian (12)
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Bajocian
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Brent Group (13)
-
Etive Formation (1)
-
Ness Formation (1)
-
Rannoch Formation (2)
-
Tarbert Formation (2)
-
-
Bathonian
-
Great Oolite Group (1)
-
-
Callovian (117)
-
Dogger (3)
-
Page Sandstone (2)
-
Summerville Formation (4)
-
Todilto Formation (7)
-
Walloon Coal Measures (2)
-
-
Norphlet Formation (35)
-
Opalinus Clay (3)
-
Oxford Clay (36)
-
San Rafael Group (3)
-
Smartville Complex (1)
-
Solnhofen Limestone (6)
-
Twin Creek Limestone (4)
-
Upper Jurassic
-
Arab Formation (46)
-
Argovian (8)
-
Bossier Formation (18)
-
Bowser Lake Group (14)
-
Brushy Basin Member (28)
-
Buckner Formation (14)
-
Cotton Valley Group (37)
-
Entrada Sandstone (48)
-
Fulmar Formation (34)
-
Galice Formation (26)
-
Hanifa Formation (29)
-
Haynesville Formation (59)
-
Jeanne d'Arc Formation (3)
-
Josephine Ophiolite (24)
-
Josephine Peridotite (4)
-
Kimmeridge Clay (101)
-
Kimmeridgian
-
lower Kimmeridgian (7)
-
upper Kimmeridgian (6)
-
-
La Casita Formation (4)
-
Lusitanian (2)
-
Malm (8)
-
Morrison Formation (176)
-
Naknek Formation (8)
-
Oxfordian
-
lower Oxfordian (6)
-
middle Oxfordian (8)
-
upper Oxfordian (9)
-
-
Portlandian (127)
-
Raghavapuram Shales (2)
-
Salt Wash Sandstone Member (16)
-
Sarayaquillo Formation (3)
-
Schuler Formation (6)
-
Sequanian (5)
-
Smackover Formation (115)
-
Stump Formation (5)
-
Sundance Formation (36)
-
Swift Formation (9)
-
Tithonian (167)
-
Volgian (46)
-
Westwater Canyon Sandstone Member (4)
-
Zuloaga Limestone (1)
-
-
-
Kayenta Formation (1)
-
lower Mesozoic (3)
-
Maiolica Limestone (5)
-
middle Mesozoic (1)
-
Mist Mountain Formation (3)
-
Navajo Sandstone (14)
-
Nugget Sandstone (4)
-
Pucara Group (2)
-
Statfjord Formation (4)
-
Triassic
-
Hallstatt Limestone (1)
-
Lower Triassic
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Bunter
-
Voltzia Sandstone (1)
-
-
Dinwoody Formation (2)
-
Induan (1)
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Olenekian (1)
-
Permian-Triassic boundary (1)
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Middle Triassic
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Anisian (2)
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Doig Formation (1)
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Ladinian (1)
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Muschelkalk (1)
-
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Moenkopi Formation (2)
-
Montney Formation (1)
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Red Peak Formation (1)
-
Sherwood Sandstone (1)
-
Shublik Formation (1)
-
Upper Triassic
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Carnian (3)
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Chinle Formation (6)
-
Keuper (1)
-
Lockatong Formation (1)
-
Mercia Mudstone (3)
-
Norian (5)
-
Rhaetian
-
Penarth Group (1)
-
-
Sag River Sandstone (1)
-
Yanchang Formation (1)
-
-
-
upper Mesozoic (10)
-
Vaca Muerta Formation (38)
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Wingate Sandstone (5)
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Yanshanian (5)
-
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metal ores
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metals
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actinides
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thorium
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Th-232 (1)
-
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uranium
-
U-235 (1)
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U-238 (1)
-
-
-
alkali metals
-
potassium
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K-40 (1)
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rubidium (2)
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-
alkaline earth metals
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barium (1)
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Sr/Ca (1)
-
-
magnesium (10)
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strontium
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Sr/Ca (1)
-
Sr-87/Sr-86 (55)
-
-
-
aluminum (5)
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arsenic (1)
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gallium (1)
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gold (2)
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hafnium
-
Hf-177/Hf-176 (16)
-
Hf-182 (1)
-
-
iron
-
Fe-56 (1)
-
ferric iron (3)
-
ferrous iron (4)
-
-
lead
-
Pb-206/Pb-204 (7)
-
Pb-207/Pb-204 (6)
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Pb-207/Pb-206 (1)
-
Pb-208/Pb-204 (6)
-
Pb-208/Pb-206 (1)
-
-
manganese (8)
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platinum group
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osmium
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Os-188/Os-187 (4)
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Re-187/Os-188 (3)
-
-
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Nd-144/Nd-143 (29)
-
Sm-147/Nd-144 (2)
-
-
samarium
-
Sm-147/Nd-144 (2)
-
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ytterbium (2)
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yttrium (1)
-
-
rhenium
-
Re-187/Os-188 (3)
-
-
silver (1)
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tantalum (2)
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tin (1)
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zinc (1)
-
-
metamorphic rocks
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amphibolites (5)
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marbles (2)
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metaigneous rocks
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metatuff (1)
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serpentinite (8)
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metaplutonic rocks (1)
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metasedimentary rocks
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metaconglomerate (1)
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metapelite (1)
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metasomatic rocks
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greisen (2)
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skarn (8)
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quartzites (5)
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schists
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blueschist (2)
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Carboniferous
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Namurian (1)
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Honaker Trail Formation (1)
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lower Paleozoic (2)
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Permian
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Silurian
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Supai Formation (1)
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plate tectonics (196)
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Precambrian
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upper Precambrian
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South America
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Brazil
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Chile
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Arizona
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Upper Jurassic
ABSTRACT Hafnium isotope ratios in Late Jurassic zircon from the Summit Gabbro provide geochemical evidence for rifting at ca. 148 Ma through the southern Sierra Nevada arc crust. Previous evidence for intra-arc extension includes a linear distribution of early Mesozoic volcano-sedimentary deposits located within the regional footprint of the ~600-km-long Independence dike swarm. In this study, latest Jurassic rifting through the entire thickness of the arc crust is supported by an abrupt, 40-εHf i -unit isotopic pull-up that records the incorporation of depleted-mantle partial melts into basaltic magmas that rapidly migrated into the upper arc crust. Isotopic context for this latest Jurassic pull-up is provided by Permian through Cretaceous zircon xenocrysts sampled by ca. 85–78 Ma dikes and sills that sampled the crust underlying the eastern Sierra Nevada range crest. Summit Gabbro bodies define a northwest-trending lineament paralleling the Kern Plateau shear zone, a geometry consistent with previous interpretations that the Kern Plateau shear zone originated as a late Paleozoic sinistral transform fault that evolved to a normal fault accommodating early Mesozoic intra-arc extension. New zircon U-Pb geochronology data coupled with field observations and whole-rock geochemistry serve as the basis to reclassify Summit gabbros and diorites as latest Jurassic and to motivate definition of the bimodal Summit igneous complex (151.0 ± 1.7–146.1 ± 1.2 Ma; N = 15) as also including coeval gabbro-granite dikes of the Osa Creek ring complex and the newly defined Tübatulabal hypabyssal-volcanic series. Tight age constraints support correlation of the Summit igneous complex to the regionally extensive, ca. 148 Ma Independence dike swarm. Multiple lines of evidence support latest Jurassic Sierran arc magmagenesis within a north-northwest–trending, sinistral transtensional regime, including: (1) subparallel orientations of the Independence dike swarm and aligned Summit Gabbro intrusions; (2) overlapping and bimodal compositions in both suites; and (3) the dramatic Hf isotope pull-up in zircons from Summit gabbro-diorites, recording a short-lived increase in the proportion of isotopically primitive mafic magmas intruding into the shallow arc crust. Though clearly differentiated, the composition of one gabbroic dike is the most primitive composition reported in the Sierra Nevada arc to date. The footprint of an intra-arc graben produced by early Mesozoic extension in eastern California is constrained by the Independence dike swarm, the Kern Plateau shear zone, and the Summit igneous complex, along with distributions of Triassic–Jurassic volcano-sedimentary deposits. Coupling the history of motion along the Kern Plateau shear zone with evidence for local extension beginning in the Permian–Triassic arc, we hypothesize that Mesozoic intra-arc faulting was strongly influenced by north-northwest–trending structures inherited from a mid- to late Paleozoic sinistral transpressional-transtensional plate boundary that extended for thousands of kilometers along the western boundary of Laurentia. We assemble a Permian–Jurassic time line of intra-arc extension within the plate margin locally transitioning from sinistral transform to convergent, one that culminated in latest Jurassic rifting through the entire crust underlying the Kern Plateau.
Regional exhumation of the Laramide Province
MINERALOGICAL, PETROGRAPHIC, AND LITHOCHEMICAL FEATURES OF THE UPPER JURASSIC–LOWER CRETACEOUS SECTION OF THE NORDVIK PENINSULA ( north of Eastern Siberia )
A new species of Talantodiscus (Family Pleurotomariidae ) from the Late Jurassic of the Kutch, Western India
Newly discovered Early Cretaceous Au mineralization overprinting Late Jurassic Pb-Zn-Ag mineralization in the Qin-Hang metallogenic belt (South China)
Were Late Jurassic climatic fluctuations responses to Pangea breakup? Evidence from isotopic analyses of belemnite rostra from the eastern Tethyan Ocean
Implications of depth conversion on fault geometries and fault-risk assessment in the Smeaheia CO 2 storage site, northern North Sea
Footwall uplift and erosion during Jurassic rifting: Scott and Telford fields, Outer Moray Firth, UK Central North Sea
Desertic siliciclastic stromatolites in the Upper Jurassic Guará Formation from southwestern Gondwana: Trapping and binding in a non-marine setting
Petroleum source-rock characterization and the depositional environment of Kimmeridgian–Tithonian sequences, Jaisalmer Basin, western Rajasthan, India
Development of fluid pathways and associated diagenetic variations in a natural CO 2 leaking fault zone.
Cretaceous magnetostratigraphy of the southern Simao Basin, SE Tibetan Plateau, and its paleogeographic implications
Upper Jurassic Sediments in the Western Side of the Frolovskoye Basin in West Siberia: Diverse Patterns and Environments of Deposition
Endocranial morphology of three early-diverging ceratopsians and implications for the behavior and the evolution of the endocast in ceratopsians
Abstract Shale reservoirs host ubiquitous multi-scale natural fractures created by factors such as pore pressure build-up after petroleum generation and palaeo crustal stress changes during tectonic episodes. Natural fractures are among postulated drivers of stimulated shale well productivity and related variability. Quantifying the aforementioned role and optimizing recovery call for litho-structural assessments. In this interdisciplinary study, natural fracture density (fractures per unit length) for North and South American shales (Marcellus, Eagle Ford, Haynesville, Barnett, Fayetteville and Vaca Muerta) was estimated from published observations of outcrops, cores and borehole images. Associated production for the latest horizontal wells, drilled in the most productive locations (sweet spots), was normalized by lateral length and reservoir thickness. It was found to correlate positively with the density of small-scale natural fractures. Durations of transient linear flow, diagnosed from production data, were play-specific, negatively correlated with small-scale natural fracture density and led to realization of picodarcy matrix permeability. Conversely, large-scale (tectonic) fractures limit stimulation efficiency and pose environmental/induced seismicity risks. Therefore, stimulation-driven reactivation of small-scale fractures facilitates drainage and enhances well productivity. Relatedly, reservoir flow regimes and production decline curves are intricately controlled by interplay of natural fracture density and matrix permeability. Variability of these parameters calls for acreage-tailored stimulations.