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Invertebrata
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Mollusca
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Cephalopoda
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Porifera
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Protista
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Plantae
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Cenozoic
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Agbada Formation (5)
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Quaternary
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Tertiary
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Maikop Series (1)
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upper Miocene
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Yakima Basalt (1)
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Pliocene
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middle Pliocene (1)
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upper Neogene (1)
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Paleogene
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Dongying Formation (4)
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Eocene
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Avon Park Formation (1)
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Laney Shale Member (1)
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Mirador Formation (1)
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upper Eocene
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Cowlitz Formation (1)
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Wilkins Peak Member (2)
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Flagstaff Formation (2)
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Oligocene
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Fontainebleau Sandstone (1)
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Frio Formation (15)
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lower Oligocene
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Rupelian (2)
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middle Oligocene (2)
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Suwannee Limestone (1)
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-
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Paleocene
-
lower Paleocene
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K-T boundary (1)
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Tongue River Member (1)
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Tullock Member (1)
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-
Paleocene-Eocene Thermal Maximum (1)
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Wasatch Formation (3)
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Wilcox Group (10)
-
-
Shahejie Formation (7)
-
-
upper Cenozoic (1)
-
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Coal Measures (1)
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Mesozoic
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Cretaceous
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Asu River Group (2)
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Chatsworth Formation (1)
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Colorado Group (2)
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Comanchean
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Buda Limestone (1)
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Glen Rose Formation (1)
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Paluxy Formation (2)
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Rodessa Formation (2)
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Travis Peak Formation (3)
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Trinity Group (1)
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-
-
Dakota Formation (5)
-
Graneros Shale (5)
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Hue Shale (1)
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Logan Canyon Formation (2)
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Lower Cretaceous
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Aptian
-
Shuaiba Formation (3)
-
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Barremian (3)
-
Bear River Formation (1)
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Blackleaf Formation (1)
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Bluesky Formation (2)
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Fall River Formation (1)
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Gething Formation (2)
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Hauterivian (2)
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Hosston Formation (2)
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Kootenay Formation (1)
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Lagoa Feia Formation (1)
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Mannville Group (11)
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McMurray Formation (3)
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Missisauga Formation (3)
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Moosebar Formation (2)
-
Mowry Shale (11)
-
Muddy Sandstone (4)
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Muderong Shale (1)
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Neocomian (5)
-
Paluxy Formation (2)
-
Pearsall Formation (1)
-
Pebble Shale (1)
-
Rodessa Formation (2)
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Skull Creek Shale (3)
-
Spirit River Formation (4)
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Thamama Group (1)
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Travis Peak Formation (3)
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Trinity Group (1)
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Valanginian (1)
-
Wealden (1)
-
-
Macae Formation (1)
-
Mancos Shale (10)
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Middle Cretaceous (5)
-
Mishash Formation (1)
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Nanushuk Group (2)
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Natih Formation (1)
-
Qingshankou Formation (1)
-
Quantou Formation (1)
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Upper Cretaceous
-
Almond Formation (3)
-
Belle Fourche Shale (5)
-
Blackhawk Formation (4)
-
Blair Formation (1)
-
Bridge Creek Limestone Member (1)
-
Buda Limestone (1)
-
Cardium Formation (7)
-
Carlile Shale (7)
-
Castlegate Sandstone (2)
-
Cenomanian
-
Dunvegan Formation (2)
-
-
Codell Sandstone Member (3)
-
Cody Shale (2)
-
Colville Group (2)
-
Dawson Canyon Formation (2)
-
Eagle Sandstone (2)
-
Eutaw Formation (1)
-
Ferron Sandstone Member (9)
-
Fort Hays Limestone Member (2)
-
Fox Hills Formation (1)
-
Frontier Formation (11)
-
Fruitland Formation (1)
-
Greenhorn Limestone (7)
-
Gulfian
-
Austin Chalk (1)
-
Austin Group (1)
-
Eagle Ford Formation (7)
-
Woodbine Formation (3)
-
-
Judith River Formation (1)
-
K-T boundary (1)
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Lance Formation (3)
-
Lewis Shale (7)
-
Mesaverde Group (15)
-
Moreno Formation (1)
-
Niobrara Formation (11)
-
Pakawau Group (1)
-
Peedee Formation (1)
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Pictured Cliffs Sandstone (1)
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Pierre Shale (7)
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Point Lookout Sandstone (2)
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Rosario Formation (2)
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Senonian (16)
-
Shannon Sandstone Member (2)
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Star Point Sandstone (3)
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Straight Cliffs Formation (2)
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Sussex Sandstone Member (1)
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Tununk Member (1)
-
Turonian
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lower Turonian (1)
-
-
Tuscaloosa Formation (5)
-
Vivian Formation (1)
-
Wall Creek Member (1)
-
Williams Fork Formation (8)
-
Wyandot Formation (1)
-
-
Viking Formation (4)
-
-
Glen Canyon Group (1)
-
Great Valley Sequence (3)
-
Jurassic
-
Aztec Sandstone (1)
-
Carmel Formation (1)
-
Fernie Formation (1)
-
Heather Formation (2)
-
Kingak Shale (4)
-
Lower Jurassic
-
Dunlin Group (1)
-
Toarcian (1)
-
-
Mic Mac Formation (1)
-
Middle Jurassic
-
Aalenian (2)
-
Bajocian
-
Brent Group (9)
-
Broom Formation (1)
-
Etive Formation (3)
-
Ness Formation (6)
-
Rannoch Formation (5)
-
Tarbert Formation (2)
-
-
Callovian (1)
-
Page Sandstone (2)
-
Todilto Formation (1)
-
-
Norphlet Formation (10)
-
Posidonia Shale (1)
-
Twin Creek Limestone (1)
-
Upper Jurassic
-
Arab Formation (4)
-
Bossier Formation (1)
-
Buckner Formation (1)
-
Entrada Sandstone (9)
-
Fulmar Formation (4)
-
Hanifa Formation (1)
-
Haynesville Formation (3)
-
Kimmeridge Clay (6)
-
Kimmeridgian (3)
-
Morrison Formation (6)
-
Portlandian (2)
-
Salt Wash Sandstone Member (1)
-
Schuler Formation (1)
-
Smackover Formation (11)
-
Stump Formation (1)
-
Sundance Formation (2)
-
Swift Formation (2)
-
Tithonian (3)
-
-
-
Kayenta Formation (3)
-
middle Mesozoic (1)
-
Navajo Sandstone (12)
-
Newark Supergroup (1)
-
Nugget Sandstone (3)
-
Statfjord Formation (3)
-
Triassic
-
Charlie Lake Formation (1)
-
Lower Triassic (3)
-
Middle Triassic
-
Doig Formation (2)
-
Ladinian (1)
-
Muschelkalk (1)
-
-
Moenkopi Formation (3)
-
Montney Formation (1)
-
Shublik Formation (3)
-
Upper Triassic
-
Chinle Formation (2)
-
Dockum Group (1)
-
Keuper (1)
-
Mercia Mudstone (1)
-
Norian (1)
-
Sag River Sandstone (1)
-
Xujiahe Formation (1)
-
Yanchang Formation (5)
-
-
-
Vaca Muerta Formation (3)
-
Wingate Sandstone (2)
-
-
Paleozoic
-
Arbuckle Group (2)
-
Cambrian
-
Lower Cambrian
-
Poleta Formation (1)
-
-
Middle Cambrian
-
Bright Angel Shale (1)
-
-
Tapeats Sandstone (1)
-
Upper Cambrian
-
Dresbachian (1)
-
Eau Claire Formation (1)
-
Mount Simon Sandstone (2)
-
-
-
Carboniferous
-
Amsden Formation (1)
-
Bartlesville Sand (2)
-
Jackfork Group (5)
-
Johns Valley Formation (1)
-
Lower Carboniferous
-
Dinantian (5)
-
-
Mississippian
-
Barnett Shale (11)
-
Boone Formation (1)
-
Lower Mississippian
-
Kayak Shale (1)
-
Kekiktuk Conglomerate (1)
-
Kinderhookian
-
Banff Formation (1)
-
-
Lodgepole Formation (1)
-
Osagian
-
Burlington Limestone (1)
-
-
Tournaisian (1)
-
-
Madison Group (2)
-
Middle Mississippian
-
Visean
-
upper Visean (1)
-
-
-
Mission Canyon Limestone (1)
-
Stanley Group (1)
-
Upper Mississippian
-
Chesterian
-
Aux Vases Sandstone (2)
-
Renault Formation (2)
-
-
Fayetteville Formation (1)
-
Hartselle Sandstone (1)
-
Hinton Formation (1)
-
Mauch Chunk Formation (1)
-
Meramecian
-
Saint Louis Limestone (2)
-
Sainte Genevieve Limestone (2)
-
-
Monteagle Limestone (1)
-
Parkwood Formation (1)
-
Serpukhovian (1)
-
-
-
Namurian (3)
-
Pennsylvanian
-
Lower Pennsylvanian
-
Haymond Formation (1)
-
Lee Formation (1)
-
Morrowan (4)
-
-
Middle Pennsylvanian
-
Atokan
-
Atoka Formation (4)
-
-
Breathitt Formation (2)
-
Desmoinesian
-
Cherokee Group (1)
-
Marmaton Group (1)
-
Spiro Sandstone (1)
-
-
Paradox Formation (1)
-
-
Minturn Formation (2)
-
Morrow Formation (5)
-
Upper Pennsylvanian
-
Canyon Group (1)
-
Missourian
-
Rock Lake Shale Member (1)
-
Stanton Formation (1)
-
Wann Formation (1)
-
-
Virgilian
-
Tonganoxie Sandstone (1)
-
-
-
-
Springer Formation (1)
-
Upper Carboniferous (7)
-
-
Chattanooga Shale (2)
-
Devonian
-
Genesee Group (1)
-
Keg River Formation (1)
-
Lower Devonian
-
Oriskany Sandstone (2)
-
-
Middle Devonian
-
Eifelian (1)
-
Givetian (1)
-
Mahantango Formation (1)
-
Marcellus Shale (8)
-
Onondaga Limestone (1)
-
Prairie Evaporite (1)
-
Tioga Bentonite (1)
-
Tully Limestone (1)
-
-
Ponta Grossa Formation (1)
-
Traverse Group (1)
-
Upper Devonian
-
Brallier Shale (1)
-
Canadaway Group (1)
-
Cleveland Member (1)
-
Domanik Formation (1)
-
Famennian
-
Wabamun Group (1)
-
-
Frasnian
-
Leduc Formation (1)
-
-
Nisku Formation (1)
-
Ohio Shale (3)
-
-
-
Exshaw Formation (4)
-
Helderberg Group (2)
-
Hunton Group (2)
-
Itarare Subgroup (2)
-
Knox Group (2)
-
Lisburne Group (5)
-
lower Paleozoic
-
Rose Run Sandstone (2)
-
-
Maroon Formation (1)
-
Minnelusa Formation (2)
-
New Albany Shale (1)
-
Ordovician
-
Lower Ordovician
-
Beekmantown Group (1)
-
Ellenburger Group (1)
-
-
Middle Ordovician
-
Bromide Formation (1)
-
Everton Formation (1)
-
Glenwood Shale (1)
-
Saint Peter Sandstone (4)
-
Simpson Group (2)
-
-
Montoya Group (1)
-
Trenton Group (1)
-
Upper Ordovician
-
Hirnantian (1)
-
Katian (1)
-
Maquoketa Formation (1)
-
Red River Formation (3)
-
Reedsville Formation (1)
-
Trentonian (1)
-
Wufeng Formation (2)
-
-
Utica Shale (3)
-
Viola Limestone (1)
-
-
Permian
-
Ecca Group (1)
-
Echooka Formation (1)
-
Guadalupian
-
Bell Canyon Formation (4)
-
Brushy Canyon Formation (2)
-
Capitan Formation (1)
-
Cherry Canyon Formation (2)
-
Delaware Mountain Group (4)
-
Grayburg Formation (1)
-
Tansill Formation (1)
-
-
Hennessey Formation (1)
-
Kaibab Formation (1)
-
Khuff Formation (3)
-
Longtan Formation (1)
-
Lower Permian
-
Abo Formation (1)
-
Cherry Canyon Formation (2)
-
Cisuralian
-
Artinskian (1)
-
-
Leonardian
-
Bone Spring Limestone (3)
-
Clear Fork Group (1)
-
-
Wichita Group (1)
-
Wolfcampian
-
Hueco Limestone (1)
-
-
-
Lyons Sandstone (1)
-
Maokou Formation (1)
-
Meade Peak Member (2)
-
Phosphoria Formation (3)
-
Rotliegendes (5)
-
Unayzah Formation (4)
-
Upper Permian
-
Changxing Formation (1)
-
Salado Formation (1)
-
Zechstein (3)
-
-
Yates Formation (2)
-
Yeso Formation (1)
-
-
Sauk Sequence (1)
-
Silurian
-
Lockport Formation (1)
-
Lower Silurian
-
Llandovery
-
Aeronian (1)
-
Rhuddanian (1)
-
-
Qalibah Formation (2)
-
-
Middle Silurian
-
Clinton Group (1)
-
Keefer Sandstone (1)
-
McKenzie Formation (1)
-
-
Niagaran (3)
-
-
Tensleep Sandstone (2)
-
upper Paleozoic
-
Antrim Shale (1)
-
Arkansas Novaculite (2)
-
Bakken Formation (7)
-
Fountain Formation (1)
-
Kaskaskia Sequence (1)
-
Tirrawarra Sandstone (1)
-
-
Weber Sandstone (3)
-
Woodford Shale (9)
-
-
Precambrian
-
Archean
-
Warrawoona Group (1)
-
-
Chuar Group (1)
-
Fortescue Group (1)
-
Hamersley Group (1)
-
Nonesuch Shale (1)
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic
-
Roper Group (1)
-
-
Neoproterozoic
-
Dengying Formation (1)
-
Doushantuo Formation (1)
-
Ediacaran
-
Wonoka Formation (2)
-
-
Vendian (2)
-
Wilpena Group (1)
-
-
Sinian
-
Dengying Formation (1)
-
Doushantuo Formation (1)
-
-
-
-
Witwatersrand Supergroup (1)
-
Wyman Formation (1)
-
-
-
igneous rocks
-
igneous rocks
-
plutonic rocks (1)
-
volcanic rocks
-
basalts
-
flood basalts (1)
-
-
pyroclastics
-
ignimbrite (1)
-
tuff (3)
-
tuffite (1)
-
-
-
-
ophiolite (1)
-
volcanic ash (2)
-
-
metamorphic rocks
-
K-bentonite (1)
-
metamorphic rocks
-
schists
-
greenschist (1)
-
-
-
ophiolite (1)
-
turbidite (68)
-
-
minerals
-
carbonates
-
ankerite (3)
-
calcite (24)
-
dolomite (15)
-
magnesian calcite (1)
-
magnesite (1)
-
trona (1)
-
-
halides
-
chlorides
-
halite (5)
-
-
-
K-bentonite (1)
-
minerals (5)
-
oxides
-
goethite (1)
-
hematite (2)
-
iron oxides (1)
-
magnetite (1)
-
manganese oxides (1)
-
-
phosphates
-
apatite (2)
-
fluorapatite (1)
-
-
silicates
-
framework silicates
-
feldspar group
-
alkali feldspar
-
adularia (1)
-
K-feldspar (3)
-
-
-
silica minerals
-
chalcedony (1)
-
opal
-
opal-A (1)
-
opal-CT (2)
-
-
quartz (36)
-
-
zeolite group
-
laumontite (1)
-
-
-
iron silicates (1)
-
orthosilicates
-
nesosilicates
-
zircon group
-
zircon (2)
-
-
-
-
sheet silicates
-
chlorite group
-
chamosite (1)
-
chlorite (16)
-
-
clay minerals
-
dickite (1)
-
kaolinite (26)
-
smectite (20)
-
-
illite (37)
-
mica group (1)
-
serpentine group
-
berthierine (1)
-
-
-
-
sulfates
-
anhydrite (9)
-
barite (3)
-
gypsum (3)
-
-
sulfides
-
greigite (1)
-
pyrite (4)
-
pyrrhotite (1)
-
sphalerite (1)
-
-
-
Primary terms
-
absolute age (15)
-
Africa
-
African Platform (1)
-
Blue Nile (1)
-
Central Africa
-
Angola
-
Cuanza Basin (1)
-
-
Central African Republic (1)
-
Equatorial Guinea (2)
-
-
Chad Basin (1)
-
Congo Basin (1)
-
East Africa
-
Sudan (4)
-
-
North Africa
-
Algeria
-
Berkine Basin (2)
-
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
Middle Atlas (1)
-
-
-
Egypt
-
Eastern Desert (1)
-
Nile Delta (6)
-
Sinai Egypt (1)
-
-
Ghadames Basin (4)
-
Libya
-
Murzuk Basin (1)
-
Sirte Basin (1)
-
-
Morocco
-
-
-
-