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Format
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Journal
Publisher
Section
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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Central Africa
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Burundi (1)
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Congo Basin (1)
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Congo Craton (1)
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East Africa
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Kenya
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Kenya Rift valley (1)
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Tanzania (5)
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Zambia (1)
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East African Lakes
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Lake Tanganyika (1)
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Gregory Rift (1)
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Mozambique Belt (1)
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North Africa
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Algeria (2)
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Atlas Mountains
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Egypt (1)
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Libya (1)
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Tunisia (1)
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Sahara (4)
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Southern Africa
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Kalahari Craton (1)
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Karoo Basin (6)
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Namibia (3)
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South Africa
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Eastern Cape Province South Africa (1)
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Tibesti Massif (1)
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West Africa
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Ghana (1)
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Alexander Terrane (2)
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Asia
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Central Asia
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Far East
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Canada
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Maritime Provinces
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Newfoundland and Labrador
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Ungava (1)
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Western Canada
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Kyrgyzstan
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Russian Federation
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Murmansk Russian Federation
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-
lower Paleogene (2)
-
Oligocene
-
Brule Formation (1)
-
lower Oligocene (3)
-
middle Oligocene (1)
-
Vicksburg Group (1)
-
-
Paleocene
-
Clayton Formation (1)
-
lower Paleocene
-
Danian (2)
-
K-T boundary (7)
-
Puercan (1)
-
-
Midway Group (1)
-
Porters Creek Formation (1)
-
Ravenscrag Formation (1)
-
upper Paleocene
-
Thanetian (1)
-
-
-
Paleocene-Eocene Thermal Maximum (2)
-
Wasatch Formation (1)
-
White River Group (2)
-
Wilcox Group (1)
-
-
Pirabas Formation (1)
-
Shahejie Formation (1)
-
-
Tulare Formation (1)
-
upper Cenozoic (1)
-
Yakataga Formation (3)
-
-
Lake Bonneville (1)
-
Laurentide ice sheet (17)
-
Mesozoic
-
Cretaceous
-
Blairmore Group (1)
-
Comanchean
-
Edwards Formation (1)
-
-
Dakota Formation (3)
-
Graneros Shale (1)
-
Kuskokwim Group (2)
-
Lower Cretaceous
-
Agrio Formation (1)
-
Albian
-
upper Albian (2)
-
-
Aptian (2)
-
Barremian (2)
-
Berriasian (1)
-
Blackleaf Formation (2)
-
Burro Canyon Formation (1)
-
Cadomin Formation (1)
-
Cedar Mountain Formation (3)
-
Cloverly Formation (4)
-
Edwards Formation (1)
-
Hauterivian (1)
-
Kiowa Formation (1)
-
Lakota Formation (2)
-
Mannville Group (2)
-
McMurray Formation (1)
-
Mowry Shale (1)
-
Muddy Sandstone (1)
-
-
Mancos Shale (1)
-
Middle Cretaceous
-
Winton Formation (2)
-
-
Natih Formation (1)
-
Queen Charlotte Group (1)
-
Upper Cretaceous
-
Bearpaw Formation (4)
-
Belle Fourche Shale (1)
-
Belly River Formation (10)
-
Blackhawk Formation (1)
-
Blufftown Formation (1)
-
Campanian
-
Dinosaur Park Formation (18)
-
lower Campanian (1)
-
upper Campanian (4)
-
-
Carlile Shale (3)
-
Castlegate Sandstone (2)
-
Cenomanian (7)
-
Coniacian (1)
-
Djadokhta Formation (1)
-
Eagle Sandstone (1)
-
Eutaw Formation (2)
-
Ferron Sandstone Member (1)
-
Fort Hays Limestone Member (1)
-
Frontier Formation (2)
-
Fruitland Formation (3)
-
Greenhorn Limestone (4)
-
Gulfian
-
Aguja Formation (2)
-
Eagle Ford Formation (3)
-
Woodbine Formation (1)
-
-
Hell Creek Formation (6)
-
Horseshoe Canyon Formation (6)
-
Javelina Formation (1)
-
Judith River Formation (9)
-
Kaiparowits Formation (2)
-
K-T boundary (7)
-
Lance Formation (3)
-
Laramie Formation (1)
-
Lewis Shale (1)
-
Maestrichtian
-
lower Maestrichtian (3)
-
upper Maestrichtian (4)
-
-
Marshalltown Formation (1)
-
Mesaverde Group (3)
-
Milk River Formation (4)
-
Mooreville Chalk (1)
-
Niobrara Formation (4)
-
Oldman Formation (11)
-
Pictured Cliffs Sandstone (1)
-
Pierre Shale (1)
-
Prince Creek Formation (3)
-
Saint Mary River Formation (2)
-
Santonian (9)
-
Schrader Bluff Formation (1)
-
Senonian (17)
-
Smoky Hill Chalk Member (1)
-
Straight Cliffs Formation (2)
-
Tropic Shale (1)
-
Tununk Member (1)
-
Turonian (6)
-
Two Medicine Formation (1)
-
Wahweap Formation (2)
-
Williams Fork Formation (1)
-
-
Whitemud Formation (1)
-
-
Jurassic
-
Clarens Formation (1)
-
Ferrar Group (1)
-
Lower Jurassic
-
East Berlin Formation (1)
-
Hettangian (1)
-
Pliensbachian (2)
-
-
Middle Jurassic
-
Bajocian (2)
-
Bathonian (2)
-
Callovian (2)
-
Summerville Formation (1)
-
-
Oxford Clay (1)
-
Posidonia Shale (1)
-
Upper Jurassic
-
Arab Formation (1)
-
Brushy Basin Member (3)
-
Cotton Valley Group (1)
-
Entrada Sandstone (3)
-
Hanifa Formation (1)
-
Kimmeridgian (2)
-
Morrison Formation (14)
-
Naknek Formation (1)
-
Oxfordian (3)
-
Salt Wash Sandstone Member (1)
-
Smackover Formation (1)
-
Sundance Formation (2)
-
Tithonian (2)
-
-
-
Kayenta Formation (1)
-
lower Mesozoic (2)
-
McHugh Complex (1)
-
Navajo Sandstone (5)
-
Newark Supergroup (2)
-
Nugget Sandstone (1)
-
Triassic
-
Hawkesbury Sandstone (1)
-
Lower Triassic
-
Olenekian (1)
-
Permian-Triassic boundary (5)
-
-
Middle Triassic
-
Anisian (1)
-
-
Moenkopi Formation (1)
-
Upper Triassic
-
Carnian (1)
-
Norian (2)
-
Rhaetian (1)
-
Yanchang Formation (1)
-
-
-
Vaca Muerta Formation (1)
-
Wingate Sandstone (1)
-
-
MIS 2 (1)
-
MIS 3 (1)
-
MIS 5 (3)
-
MIS 6 (2)
-
MIS 7 (2)
-
Paleozoic
-
Berea Sandstone (2)
-
Cambrian
-
Conasauga Group (1)
-
Lower Cambrian
-
Chilhowee Group (1)
-
Terreneuvian
-
Fortunian (1)
-
-
-
Middle Cambrian
-
Burgess Shale (1)
-
-
Upper Cambrian
-
Bonneterre Formation (1)
-
Copper Ridge Dolomite (2)
-
Eau Claire Formation (8)
-
Franconia Formation (1)
-
Furongian (1)
-
Galesville Sandstone (1)
-
Lamotte Sandstone (1)
-
Mount Simon Sandstone (17)
-
-
-
Carboniferous
-
Bartlesville Sand (1)
-
Jackfork Group (2)
-
Johns Valley Formation (1)
-
Lower Carboniferous
-
Asbian (1)
-
Dinantian (7)
-
-
Mississippian
-
Barnett Shale (5)
-
Borden Group (6)
-
Chainman Shale (1)
-
Harrodsburg Limestone (1)
-
Lower Mississippian
-
Cuyahoga Formation (1)
-
Fort Payne Formation (11)
-
Kayak Shale (1)
-
Lake Valley Formation (4)
-
Lodgepole Formation (5)
-
Osagian
-
Burlington Limestone (6)
-
Keokuk Limestone (2)
-
-
Pocono Formation (2)
-
Tournaisian (8)
-
-
Madison Group (4)
-
Middle Mississippian
-
Visean
-
upper Visean (1)
-
-
-
Mission Canyon Limestone (2)
-
Price Formation (2)
-
Redwall Limestone (1)
-
Sunbury Shale (1)
-
Upper Mississippian
-
Chesterian
-
Aux Vases Sandstone (1)
-
Imo Formation (1)
-
Renault Formation (1)
-
-
Fayetteville Formation (3)
-
Greenbrier Limestone (3)
-
Hartselle Sandstone (2)
-
Mauch Chunk Formation (3)
-
Meramecian
-
Saint Louis Limestone (2)
-
Sainte Genevieve Limestone (2)
-
Salem Limestone (5)
-
Warsaw Formation (2)
-
-
Parkwood Formation (1)
-
Pennington Formation (1)
-
Pitkin Limestone (1)
-
Serpukhovian (2)
-
-
Valmeyeran (3)
-
-
Namurian (2)
-
Pennsylvanian
-
Conemaugh Group (4)
-
Joggins Formation (2)
-
Lower Pennsylvanian
-
Bashkirian (1)
-
Caseyville Formation (1)
-
Morrowan
-
Bloyd Formation (1)
-
-
-
Mansfield Formation (1)
-
Mattoon Formation (1)
-
Middle Pennsylvanian
-
Allegheny Group (3)
-
Atokan
-
Atoka Formation (1)
-
-
Carbondale Formation (1)
-
Desmoinesian (6)
-
Moscovian (8)
-
Spoon Formation (1)
-
Staunton Formation (3)
-
-
Minturn Formation (4)
-
Monongahela Group (3)
-
Pittsburgh Coal (1)
-
Pottsville Group (4)
-
Saginaw Formation (1)
-
Springfield Coal Member (1)
-
Upper Pennsylvanian
-
Ames Limestone (1)
-
Glenshaw Formation (2)
-
Gzhelian (2)
-
Kasimovian (5)
-
Missourian
-
Kansas City Group (1)
-
Lansing Group (2)
-
Plattsburg Limestone (1)
-
-
Virgilian
-
Douglas Group (2)
-
Lawrence Formation (1)
-
Shawnee Group (2)
-
Tonganoxie Sandstone (1)
-
Wabaunsee Group (1)
-
-
-
-
Springer Formation (1)
-
Upper Carboniferous
-
Westphalian (3)
-
-
-
Catskill Formation (1)
-
Chattanooga Shale (9)
-
Devonian
-
Keg River Formation (1)
-
Lower Devonian
-
Emsian (5)
-
Lochkovian (1)
-
Manlius Formation (1)
-
Oriskany Sandstone (3)
-
York River Formation (1)
-
-
Middle Devonian
-
Boyle Dolomite (1)
-
Delaware Limestone (1)
-
Detroit River Group (1)
-
Dundee Limestone (3)
-
Eifelian (7)
-
Givetian
-
Horn Plateau Formation (1)
-
-
Hamilton Group (3)
-
Jeffersonville Limestone (2)
-
Marcellus Shale (10)
-
Moscow Formation (1)
-
Onondaga Limestone (6)
-
Sylvania Formation (1)
-
Tioga Bentonite (2)
-
-
Millboro Shale (2)
-
Old Red Sandstone (1)
-
Slave Point Formation (1)
-
Swan Hills Formation (2)
-
Thirtyone Formation (1)
-
Traverse Group (1)
-
Upper Devonian
-
Chemung Formation (2)
-
Duperow Formation (1)
-
Famennian
-
upper Famennian (2)
-
-
Frasnian
-
lower Frasnian (1)
-
-
Hampshire Formation (2)
-
Jefferson Group (2)
-
Kanayut Conglomerate (1)
-
Ohio Shale (5)
-
Olentangy Shale (1)
-
-
Waterways Formation (2)
-
Zlichovian (1)
-
-
Dunkard Group (4)
-
Ellis Bay Formation (1)
-
Exshaw Formation (1)
-
Itarare Subgroup (1)
-
Knox Group (7)
-
Lisburne Group (1)
-
lower Paleozoic
-
Cape Phillips Formation (1)
-
Rose Run Sandstone (3)
-
-
middle Paleozoic
-
Hillabee Chlorite Schist (1)
-
-
New Albany Shale (16)
-
Ordovician
-
Chickamauga Group (1)
-
Clays Ferry Formation (1)
-
Lexington Limestone (2)
-
Lower Ordovician
-
Beekmantown Group (2)
-
Floian (1)
-
Manitou Formation (1)
-
Tremadocian (2)
-
-
Martinsburg Formation (1)
-
Middle Ordovician
-
Black River Group (4)
-
Bromide Formation (1)
-
Chazyan (1)
-
Dapingian (1)
-
Darriwilian (7)
-
Decorah Shale (1)
-
Galena Dolomite (3)
-
Glenwood Shale (1)
-
Llandeilian (1)
-
Normanskill Formation (1)
-
Platteville Formation (3)
-
Saint Peter Sandstone (6)
-
Simpson Group (1)
-
Whiterockian (2)
-
-
Pogonip Group (1)
-
Trenton Group (7)
-
Upper Ordovician
-
Ashgillian (2)
-
Caradocian
-
Borrowdale Volcanic Group (1)
-
-
Cincinnatian
-
Maysvillian (2)
-
Richmondian (7)
-
-
Edenian (3)
-
Fairview Formation (12)
-
Hirnantian (9)
-
Juniata Formation (1)
-
Katian (20)
-
Kope Formation (19)
-
Maquoketa Formation (9)
-
Mohawkian (3)
-
Queenston Shale (2)
-
Sandbian (5)
-
Trentonian (7)
-
Whitewater Formation (2)
-
Wufeng Formation (2)
-
-
Utica Shale (4)
-
Viola Limestone (1)
-
Womble Shale (1)
-
-
Permian
-
Castile Formation (1)
-
Cutler Formation (2)
-
Guadalupian
-
Bell Canyon Formation (1)
-
Capitan Formation (1)
-
Capitanian (3)
-
Cherry Canyon Formation (1)
-
Delaware Mountain Group (1)
-
Grayburg Formation (1)
-
Roadian (1)
-
-
Khuff Formation (3)
-
Lower Permian
-
Abo Formation (1)
-
Cherry Canyon Formation (1)
-
Cisuralian
-
Asselian (1)
-
Kungurian (3)
-
Sakmarian (1)
-
-
Leonardian (3)
-
Wolfcampian
-
Hueco Limestone (1)
-
-
-
Meade Peak Member (1)
-
Middle Permian (1)
-
Phosphoria Formation (1)
-
Upper Permian
-
Permian-Triassic boundary (5)
-
-
Yeso Formation (1)
-
-
Road River Formation (1)
-
Sauk Sequence (1)
-
Silurian
-
Bainbridge Formation (1)
-
Bass Islands Dolomite (1)
-
Clinch Sandstone (1)
-
Lockport Formation (5)
-
Lower Silurian
-
Brassfield Formation (6)
-
Llandovery
-
Aeronian (2)
-
Rhuddanian (3)
-
Telychian (2)
-
-
Wenlock
-
Homerian (1)
-
Sheinwoodian (1)
-
-
Whirlpool Sandstone (2)
-
-
Middle Silurian
-
Guelph Formation (1)
-
Keefer Sandstone (1)
-
McKenzie Formation (1)
-
Racine Dolomite (1)
-
Waldron Shale (2)
-
-
Niagaran (15)
-
Upper Silurian
-
Cayugan
-
Tonoloway Limestone (1)
-
-
Ludlow
-
Ludfordian (1)
-
-
Pridoli (1)
-
Salina Group (6)
-
-
-
Supai Formation (1)
-
Taiyuan Formation (1)
-
Talladega Group (2)
-
upper Paleozoic
-
Antrim Shale (5)
-
Arkansas Novaculite (1)
-
Bakken Formation (2)
-
Fountain Formation (1)
-
Kaskaskia Sequence (1)
-
-
Woodford Shale (3)
-
-
Phanerozoic (7)
-
Precambrian
-
Archean
-
Aravalli System (1)
-
Neoarchean (1)
-
-
Kingston Peak Formation (1)
-
Kisseynew Complex (1)
-
Minas Supergroup (1)
-
Missi Group (1)
-
Nonesuch Shale (2)
-
North Shore Volcanics (1)
-
Spuhler Peak Formation (1)
-
upper Precambrian
-
Proterozoic
-
Great Oxidation Event (1)
-
Kombolgie Formation (1)
-
Mesoproterozoic
-
Belt Supergroup (3)
-
Freda Sandstone (1)
-
Wallace Formation (1)
-
-
Neoproterozoic
-
Brioverian (1)
-
Ediacaran (7)
-
Infracambrian (1)
-
Riphean (1)
-
Vendian (3)
-
Walden Creek Group (1)
-
-
Oronto Group (1)
-
Paleoproterozoic (10)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
carbonatites (2)
-
kimberlite (1)
-
picrite (1)
-
plutonic rocks
-
anorthosite (2)
-
diabase (4)
-
diorites
-
tonalite (1)
-
-
gabbros
-
troctolite (2)
-
-
granites
-
aplite (1)
-
I-type granites (1)
-
S-type granites (1)
-
-
granodiorites (3)
-
lamproite (1)
-
lamprophyres
-
camptonite (1)
-
-
monzonites
-
mangerite (1)
-
-
pegmatite (1)
-
syenites (1)
-
ultramafics
-
peridotites
-
dunite (1)
-
-
-
-
volcanic rocks
-
adakites (1)
-
andesites
-
boninite (1)
-
-
basalts
-
flood basalts (5)
-
mid-ocean ridge basalts (1)
-
olivine tholeiite (1)
-
-
dacites (2)
-
glasses
-
volcanic glass (2)
-
-
pyroclastics
-
green tuff (1)
-
ignimbrite (5)
-
rhyolite tuff (3)
-
tuff (8)
-
-
rhyodacites (1)
-
rhyolites (6)
-
trachyandesites (2)
-
-
-
ophiolite (2)
-
volcanic ash (1)
-
-
metamorphic rocks
-
K-bentonite (4)
-
metamorphic rocks
-
garnetite (1)
-
gneisses
-
orthogneiss (2)
-
-
marbles (7)
-
metaigneous rocks
-
metabasite (1)
-
metadacite (1)
-
-
metasedimentary rocks (10)
-
metasomatic rocks
-
skarn (3)
-
-
metavolcanic rocks (1)
-
migmatites (2)
-
mylonites (2)
-
quartzites (2)
-
schists
-
greenschist (1)
-
greenstone (1)
-
-
-
ophiolite (2)
-
turbidite (3)
-
-
meteorites
-
meteorites (1)
-
-
minerals
-
alloys (1)
-
carbonates
-
aragonite (1)
-
calcite (6)
-
dolomite (15)
-
parisite (1)
-
siderite (1)
-
sphaerosiderite (1)
-
-
halides
-
chlorides
-
halite (1)
-
-
fluorides
-
fluorite (1)
-
parisite (1)
-
-
-
K-bentonite (4)
-
minerals (2)
-
native elements
-
diamond (1)
-
graphite (1)
-
-
nitrates (1)
-
oxalates (1)
-
oxides
-
anatase (1)
-
baddeleyite (1)
-
chrome spinel (1)
-
chromite (1)
-
gibbsite (1)
-
goethite (1)
-
hematite (3)
-
hydroxides (1)
-
iron oxides (2)
-
maghemite (1)
-
magnetite (1)
-
spinel (1)
-
spinel group (1)
-
-
phosphates
-
apatite (10)
-
fluorapatite (1)
-
monazite (4)
-
-
platinum minerals (2)
-
silicates
-
chain silicates
-
amphibole group
-
clinoamphibole
-
edenite (1)
-
hastingsite (1)
-
hornblende (2)
-
kaersutite (2)
-
pargasite (1)
-
-
-
pyroxene group
-
clinopyroxene
-
diopside (1)
-
-
orthopyroxene (1)
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
amazonite (1)
-
K-feldspar (4)
-
sanidine (1)
-
-
plagioclase (1)
-
-
scapolite group
-
scapolite (1)
-
-
silica minerals
-
chalcedony (1)
-
quartz (8)
-
-
zeolite group
-
laumontite (1)
-
leonhardite (1)
-
-
-
orthosilicates
-
nesosilicates
-
garnet group
-
almandine (1)
-
grossular (1)
-
-
kyanite (1)
-
olivine group
-
olivine (1)
-
-
sillimanite (1)
-
titanite group
-
titanite (1)
-
-
zircon group
-
zircon (58)
-
-
-
-
ring silicates
-
emerald (1)
-
-
sheet silicates
-
chlorite group
-
chamosite (1)
-
chlorite (3)
-
-
clay minerals
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beidellite (4)
-
dickite (1)
-
halloysite (1)
-
kaolinite (18)
-
montmorillonite (6)
-
saponite (1)
-
smectite (13)
-
vermiculite (1)
-
-
illite (15)
-
mica group
-
biotite (2)
-
glauconite (3)
-
muscovite (7)
-
-
palygorskite (4)
-
serpentine group
-
berthierine (1)
-
-
-
-
sulfates
-
alunite (1)
-
anhydrite (3)
-
bassanite (1)
-
celestine (1)
-
chalcanthite (1)
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copiapite (1)
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coquimbite (1)
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epsomite (1)
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gypsum (4)
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halotrichite (1)
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hexahydrite (1)
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iron sulfates (1)
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jarosite (1)
-
melanterite (1)
-
pickeringite (1)
-
rozenite (1)
-
thenardite (1)
-
voltaite (1)
-
-
sulfides
-
bornite (1)
-
chalcopyrite (1)
-
galena (3)
-
iron sulfides (1)
-
marcasite (1)
-
pyrite (7)
-
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Paleozoic
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Carboniferous
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Lower Carboniferous
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Asbian (1)
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Mississippian
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Lower Mississippian
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Cuyahoga Formation (1)
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Lake Valley Formation (4)
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Lodgepole Formation (5)
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Osagian
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Burlington Limestone (6)
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Keokuk Limestone (2)
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Pocono Formation (2)
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Tournaisian (8)
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Madison Group (4)
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Middle Mississippian
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Visean
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upper Visean (1)
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Mission Canyon Limestone (2)
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Price Formation (2)
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Upper Mississippian
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Chesterian
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Aux Vases Sandstone (1)
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Imo Formation (1)
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Renault Formation (1)
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Fayetteville Formation (3)
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Greenbrier Limestone (3)
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Mauch Chunk Formation (3)
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Meramecian
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Parkwood Formation (1)
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Valmeyeran (3)
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Mansfield Formation (1)
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Springer Formation (1)
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Upper Carboniferous
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Upper Devonian
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middle Paleozoic
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Middle Silurian
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McKenzie Formation (1)
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Niagaran (15)
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Supai Formation (1)
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upper Paleozoic
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Antrim Shale (5)
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
southeastern Indiana
Diploporite (Echinodermata, Blastozoa) Thecal Attachment Structures from the Silurian of Southeastern Indiana Available to Purchase
Taphonomy of diploporite (Echinodermata) holdfasts from a Silurian hardground, southeastern Indiana, United States: palaeoecologic and stratigraphic significance Available to Purchase
Paleoecologic Associations and Secondary Tiering of Cornulites on Crinoids and Bivalves in the Upper Ordovician (Cincinnatian) of Southwestern Ohio, Southeastern Indiana, and Northern Kentucky Available to Purchase
Sequence stratigraphy of the lower part of the Muscatatuck Group (Middle Devonian) in southeastern Indiana Available to Purchase
Full article available in PDF version.
Ages of the Whitewater and Fairhaven tills in southwestern Ohio and southeastern Indiana Available to Purchase
Alloisoleucine/isoleucine (aIle/Ile) ratios obtained from fossil mollusc shells collected at localities in southwestern Ohio and southeastern Indiana, where they occur in silt beds associated with the Whitewater and Fairhaven tills, indicate a pre-Wisconsinan age for these tills, which had previously been thought to be early or middle Wisconsinan. The aIle/Ile ratios in shells from beneath the buried soil (Sidney soil) and till exposed near Sidney, Ohio, are most similar to values in shells obtained from Illinoian sediments at Clough Creek in Hamilton County, Ohio; Mechanicsburg southwest, Illinois; and Trousdale Mine in Vermillion Co., Indiana. The first well-developed weathering profile in the sequence above the implied Illinoian age silt at the Sidney cut, therefore, probably represents Sangamonian, early and middle Wisconsinan weathering. Molluscs from an organic silt, exposed near the base of the Bantas Fork cutbank section, also have aIle/Ile ratios that are similar to those measured in shell recovered from the silt at the Sidney cut and from the silt inclusion in inferred Illinoian till at Clough Creek. These data indicate that the organic silt is pre-Wisconsinan. Therefore, the Fairhaven Till, which overlies the silt at the Bantas Fork locality, could be pre-Wisconsinan and the weathering profile developed in the Fairhaven Till may be correlative with the Sangamon Soil of Illinois. The New Paris Interstade silt overlies Whitewater Till at the American Aggregates quarry at Richmond, Indiana. Shells from the silt have aIle/Ile ratios that are intermediate between those obtained from inferred Illinoian age sediments at Bantas Fork, Sidney cut, and Clough Creek, and magnetically reversed sediments at Handley Farm, near Connersville, Fayette County, Indiana. These data suggest a pre-Illinoian age for the silt unit and the underlying Whitewater Till.