Skip Nav Destination
Update search
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Central Africa
-
Angola (1)
-
-
North Africa
-
Algeria (1)
-
Egypt (1)
-
Libya (2)
-
Morocco (2)
-
-
Southern Africa
-
South Africa (2)
-
-
-
Asia
-
Arabian Peninsula
-
Kuwait (1)
-
Saudi Arabia (1)
-
-
Far East
-
Burma (1)
-
China
-
Guangxi China (1)
-
-
Indonesia (1)
-
Laos (1)
-
Lesser Sunda Islands
-
Timor (1)
-
-
-
Indian Peninsula
-
India (3)
-
-
Middle East
-
Israel (1)
-
-
-
Australasia
-
Australia
-
Victoria Australia (1)
-
Western Australia
-
Canning Basin (1)
-
-
-
-
Beaver Creek (1)
-
Canada
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick (1)
-
-
Ontario
-
Manitoulin District Ontario
-
Manitoulin Island (2)
-
-
Wellington County Ontario
-
Guelph Ontario (2)
-
-
-
Quebec
-
Anticosti Island (2)
-
-
-
Western Canada
-
Alberta
-
Alberta Basin (1)
-
Peace River Arch (1)
-
-
British Columbia (1)
-
Manitoba (1)
-
Northwest Territories (2)
-
Saskatchewan (1)
-
-
-
Commonwealth of Independent States
-
Donets Basin (1)
-
Russian Federation (2)
-
-
Europe
-
Baltic region
-
Estonia (1)
-
Latvia (1)
-
-
Central Europe
-
Czech Republic
-
Bohemia (1)
-
-
Germany
-
North Rhine-Westphalia Germany
-
Sauerland (1)
-
-
-
-
Donets Basin (1)
-
Pannonian Basin (1)
-
Southern Europe
-
Yugoslavia (1)
-
-
Western Europe
-
Belgium (1)
-
France
-
Aquitaine Basin (1)
-
Paris Basin (1)
-
-
Scandinavia
-
Sweden
-
Gotland Sweden (2)
-
-
-
United Kingdom
-
Great Britain
-
England
-
West Midlands (1)
-
-
Scotland (1)
-
-
Northern Ireland (1)
-
-
-
-
Illinois River (1)
-
Malay Archipelago
-
Timor (1)
-
-
Mexico
-
Baja California (1)
-
-
Mill Creek (1)
-
North America
-
Appalachian Basin (58)
-
Appalachians
-
Appalachian Plateau (9)
-
Central Appalachians (7)
-
Valley and Ridge Province (2)
-
-
Canadian Shield
-
Grenville Province (4)
-
-
Eastern Overthrust Belt (1)
-
Great Lakes
-
Lake Erie (9)
-
-
Great Lakes region (19)
-
Grenville Front (5)
-
Gulf Coastal Plain (6)
-
Michigan Basin (13)
-
Mississippi River basin (1)
-
Niagara Escarpment (2)
-
Niagara River (1)
-
Rocky Mountains (1)
-
Saint Lawrence Lowlands (1)
-
Western Canada Sedimentary Basin (1)
-
Western Interior
-
Western Interior Seaway (1)
-
-
Williston Basin (1)
-
-
Oceania
-
Melanesia (1)
-
-
Ottawa River (1)
-
Pacific Ocean
-
East Pacific (1)
-
-
Permian Basin (2)
-
Rome Trough (3)
-
San Juan Basin (2)
-
Solomon Islands (1)
-
South America
-
Brazil (3)
-
Venezuela (1)
-
-
United States
-
Alabama (5)
-
Allegheny Front (1)
-
Allegheny Plateau (3)
-
Anadarko Basin (1)
-
Arizona
-
Pima County Arizona
-
Tucson Arizona (1)
-
-
-
Arkansas
-
Searcy County Arkansas (1)
-
-
Atlantic Coastal Plain (1)
-
Black Warrior Basin (1)
-
California
-
Los Angeles County California
-
Pasadena California (1)
-
-
Orange County California (1)
-
San Francisco Bay region (1)
-
San Mateo County California (1)
-
-
Catskill Delta (2)
-
Cincinnati Arch (39)
-
Colorado (6)
-
Colorado Plateau (1)
-
Delaware (2)
-
Denver Basin (2)
-
Dunkard Basin (5)
-
Eastern U.S. (12)
-
Idaho (2)
-
Illinois
-
Grundy County Illinois (1)
-
Hamilton County Illinois (1)
-
Lawrence County Illinois (2)
-
Mason County Illinois (1)
-
Mazon Creek (1)
-
Richland County Illinois (2)
-
White County Illinois (1)
-
Williamson County Illinois (1)
-
-
Illinois Basin (7)
-
Indiana
-
Dearborn County Indiana (6)
-
Delaware County Indiana (1)
-
Franklin County Indiana (5)
-
Jefferson County Indiana (4)
-
Steuben County Indiana (1)
-
Switzerland County Indiana (1)
-
-
Iowa
-
Clinton County Iowa (1)
-
Floyd County Iowa (1)
-
-
Kansas (3)
-
Kentucky
-
Boone County Kentucky (8)
-
Bracken County Kentucky (4)
-
Campbell County Kentucky (4)
-
Fleming County Kentucky (1)
-
Franklin County Kentucky (1)
-
Gallatin County Kentucky (1)
-
Grant County Kentucky (1)
-
Jefferson County Kentucky
-
Louisville Kentucky (1)
-
-
Kenton County Kentucky (3)
-
Kentucky River valley (1)
-
Martin County Kentucky (1)
-
Mason County Kentucky (3)
-
Nelson County Kentucky (1)
-
Oldham County Kentucky (1)
-
Pendleton County Kentucky (1)
-
Trimble County Kentucky (2)
-
-
Louisiana (1)
-
Maryland (35)
-
Massachusetts
-
Middlesex County Massachusetts (1)
-
-
Michigan
-
Michigan Lower Peninsula
-
Alcona County Michigan (1)
-
Alpena County Michigan (2)
-
Ingham County Michigan (1)
-
Manistee County Michigan (1)
-
Montmorency County Michigan (1)
-
-
-
Midcontinent (13)
-
Midwest (20)
-
Minnesota
-
Anoka County Minnesota (1)
-
Hennepin County Minnesota
-
Minneapolis Minnesota (1)
-
-
-
Mississippi (4)
-
Mississippi River (2)
-
Mississippi Valley (1)
-
Missouri
-
Crawford County Missouri (1)
-
Saint Louis County Missouri
-
Saint Louis Missouri (2)
-
-
-
Missouri River (1)
-
Montana (2)
-
Nashville Dome (1)
-
Nebraska (2)
-
Nevada (1)
-
New England (1)
-
New Hampshire (1)
-
New Jersey (2)
-
New Madrid region (2)
-
New Mexico (5)
-
New York
-
Broome County New York
-
Binghamton New York (1)
-
-
Chautauqua County New York (1)
-
Erie County New York (3)
-
Genesee County New York (1)
-
New York City New York (1)
-
Ontario County New York (2)
-
Seneca County New York (1)
-
Yates County New York (1)
-
-
North Carolina
-
Beaufort County North Carolina (1)
-
Onslow Bay (1)
-
-
Ohio
-
Adams County Ohio (8)
-
Allen County Ohio (3)
-
Ashland County Ohio (7)
-
Ashtabula County Ohio (10)
-
Athens County Ohio
-
Athens Ohio (2)
-
-
Auglaize County Ohio (2)
-
Belmont County Ohio (3)
-
Brown County Ohio (4)
-
Butler County Ohio
-
Oxford Ohio (1)
-
-
Carroll County Ohio (5)
-
Champaign County Ohio (2)
-
Clark County Ohio
-
Springfield Ohio (1)
-
-
Clermont County Ohio (11)
-
Clinton County Ohio (3)
-
Columbiana County Ohio (8)
-
Coshocton County Ohio (3)
-
Cuyahoga County Ohio
-
Cleveland Ohio (5)
-
-
Delaware County Ohio (7)
-
Erie County Ohio (9)
-
Fairfield County Ohio (2)
-
Fayette County Ohio (2)
-
Franklin County Ohio
-
Columbus Ohio (2)
-
-
Gallia County Ohio (2)
-
Geauga County Ohio (2)
-
Greene County Ohio (12)
-
Guernsey County Ohio (4)
-
Hamilton County Ohio
-
Cincinnati Ohio (34)
-
-
Hancock County Ohio (3)
-
Harrison County Ohio (3)
-
Highland County Ohio (3)
-
Hocking County Ohio (5)
-
Holmes County Ohio (2)
-
Huron County Ohio (4)
-
Jackson County Ohio (6)
-
Jefferson County Ohio
-
Steubenville Ohio (2)
-
-
Knox County Ohio (3)
-
Lake County Ohio (9)
-
Lawrence County Ohio (1)
-
Licking County Ohio (4)
-
Logan County Ohio (1)
-
Lorain County Ohio (5)
-
Lucas County Ohio
-
Toledo Ohio (2)
-
-
Madison County Ohio (1)
-
Mahoning County Ohio (7)
-
Medina County Ohio (8)
-
Meigs County Ohio (3)
-
Mercer County Ohio (2)
-
Monroe County Ohio (1)
-
Montgomery County Ohio (6)
-
Morrow County Ohio (5)
-
Muskingum County Ohio (5)
-
Noble County Ohio (2)
-
Ottawa County Ohio (5)
-
Paulding County Ohio (2)
-
Perry County Ohio (8)
-
Pickaway County Ohio (1)
-
Pike County Ohio (2)
-
Portage County Ohio (7)
-
Preble County Ohio (4)
-
Richland County Ohio (1)
-
Ross County Ohio (3)
-
Sandusky County Ohio (4)
-
Sandusky River basin (1)
-
Scioto County Ohio (5)
-
Seneca County Ohio (1)
-
Stark County Ohio (5)
-
Summit County Ohio
-
Akron Ohio (2)
-
-
Trumbull County Ohio (1)
-
Tuscarawas County Ohio (8)
-
Van Wert County Ohio (1)
-
Vinton County Ohio (6)
-
Warren County Ohio (12)
-
Washington County Ohio (1)
-
Wayne County Ohio (3)
-
Wood County Ohio (6)
-
Wyandot County Ohio (3)
-
-
Ohio River basin (1)
-
Ohio River valley (6)
-
Oklahoma
-
Pontotoc County Oklahoma (1)
-
-
Oregon
-
Wheeler County Oregon (1)
-
-
Ouachita Belt (1)
-
Paradox Basin (1)
-
Pennsylvania
-
Allegheny County Pennsylvania (1)
-
Erie County Pennsylvania (1)
-
Huntingdon County Pennsylvania (1)
-
Lawrence County Pennsylvania (1)
-
Tioga County Pennsylvania (1)
-
-
South Dakota (1)
-
Southern U.S. (2)
-
Tennessee
-
Claiborne County Tennessee (1)
-
Humphreys County Tennessee (1)
-
-
Tennessee River (1)
-
Texas
-
Fort Worth Basin (1)
-
Galveston County Texas
-
Galveston Texas (1)
-
-
Hood County Texas (1)
-
Val Verde Basin (1)
-
West Texas (1)
-
-
Utah (3)
-
Virginia (40)
-
Washington
-
Benton County Washington (1)
-
Ferry County Washington (1)
-
Hanford Site (1)
-
-
West Virginia
-
Marion County West Virginia (1)
-
Marshall County West Virginia (2)
-
Mason County West Virginia (1)
-
Monongalia County West Virginia (2)
-
Pendleton County West Virginia (1)
-
Wayne County West Virginia (1)
-
Wetzel County West Virginia (1)
-
Wood County West Virginia (2)
-
-
Wisconsin
-
Trempealeau County Wisconsin (1)
-
-
Wyoming (1)
-
-
USSR (1)
-
-
commodities
-
abrasives (1)
-
aggregate (1)
-
bitumens (2)
-
brines (10)
-
construction materials
-
building stone (2)
-
dimension stone (1)
-
-
energy sources (22)
-
geothermal energy (2)
-
industrial minerals (1)
-
limestone deposits (1)
-
metal ores
-
iron ores (1)
-
lead-zinc deposits (2)
-
-
mineral deposits, genesis (3)
-
mineral exploration (1)
-
oil and gas fields (23)
-
ornamental materials (1)
-
petroleum
-
natural gas
-
coalbed methane (2)
-
shale gas (3)
-
-
-
tight sands (1)
-
water resources (3)
-
-
elements, isotopes
-
carbon
-
C-13/C-12 (14)
-
C-14 (2)
-
organic carbon (2)
-
-
halogens
-
bromine
-
bromide ion (1)
-
-
chlorine
-
chloride ion (2)
-
-
-
hydrogen
-
D/H (2)
-
deuterium (1)
-
-
isotope ratios (13)
-
isotopes
-
radioactive isotopes
-
C-14 (2)
-
Pb-206/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
Rn-222 (1)
-
-
stable isotopes
-
C-13/C-12 (14)
-
D/H (2)
-
deuterium (1)
-
O-18/O-16 (5)
-
Pb-206/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
S-34/S-32 (1)
-
Sr-87/Sr-86 (3)
-
-
-
metals
-
alkali metals
-
potassium (1)
-
sodium (1)
-
-
alkaline earth metals
-
beryllium (1)
-
calcium (1)
-
strontium
-
Sr-87/Sr-86 (3)
-
-
-
cadmium (1)
-
chromium (1)
-
iron
-
ferrous iron (1)
-
-
lead
-
Pb-206/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
-
-
nitrogen (1)
-
noble gases
-
argon (1)
-
helium (1)
-
radon
-
Rn-222 (1)
-
-
-
oxygen
-
O-18/O-16 (5)
-
-
phosphorus (1)
-
sulfur
-
S-34/S-32 (1)
-
-
-
fossils
-
bacteria (1)
-
borings (7)
-
burrows (8)
-
Chordata
-
Vertebrata
-
Pisces
-
Osteichthyes
-
Actinopterygii
-
Chondrostei
-
Palaeonisciformes (1)
-
-
-
Sarcopterygii
-
Crossopterygii
-
Actinistia (1)
-
-
-
-
Placodermi
-
Arthrodira (3)
-
-
-
Tetrapoda
-
Amphibia
-
Labyrinthodontia
-
Temnospondyli (1)
-
-
Lepospondyli (2)
-
-
Mammalia
-
Theria
-
Eutheria
-
Perissodactyla
-
Hippomorpha
-
Equidae (1)
-
-
-
Proboscidea
-
Mastodontoidea (1)
-
-
-
-
-
Reptilia
-
Anapsida
-
Cotylosauria (1)
-
-
Diapsida
-
Lepidosauria
-
Squamata (1)
-
-
Rhynchosauria (1)
-
-
Synapsida
-
Pelycosauria (2)
-
Therapsida
-
Dicynodontia (1)
-
-
-
-
-
-
-
coprolites (2)
-
Cyclostomata (1)
-
Graptolithina
-
Graptoloidea
-
Diplograptina (1)
-
-
-
ichnofossils
-
Palaeophycus (1)
-
Planolites (1)
-
Rusophycus (1)
-
Trypanites (1)
-
-
Invertebrata
-
Arthropoda
-
Chelicerata
-
Merostomata
-
Eurypterida (2)
-
-
-
Mandibulata
-
Crustacea
-
Cirripedia (1)
-
Malacostraca (3)
-
Ostracoda
-
Beyrichicopina (1)
-
Kirkbyocopina (1)
-
Paleocopida (1)
-
Podocopida
-
Bairdiomorpha (1)
-
Cypridocopina (1)
-
-
-
-
Insecta
-
Pterygota
-
Neoptera
-
Endopterygota
-
Coleoptera (1)
-
-
Exopterygota
-
Blattaria (1)
-
Hemiptera (1)
-
-
-
-
-
Myriapoda (2)
-
-
Trilobitomorpha
-
Trilobita
-
Phacopida (2)
-
Ptychopariida
-
Cryptolithus (3)
-
-
-
-
-
Brachiopoda
-
Articulata
-
Orthida (2)
-
Pentamerida (1)
-
Spiriferida
-
Atrypidae (1)
-
-
Strophomenida
-
Sowerbyella (1)
-
Strophomena (1)
-
-
-
Inarticulata (1)
-
-
Bryozoa
-
Cryptostomata (1)
-
Ctenostomata (1)
-
Trepostomata (4)
-
-
Cnidaria
-
Anthozoa
-
Zoantharia
-
Rugosa (1)
-
-
-
-
Echinodermata
-
Asterozoa
-
Stelleroidea
-
Asteroidea (1)
-
Ophiuroidea (1)
-
-
-
Crinozoa
-
Blastoidea (1)
-
Crinoidea (24)
-
Cystoidea (1)
-
-
Echinozoa
-
Echinoidea (2)
-
Edrioasteroidea (2)
-
Ophiocistioidea (1)
-
-
-
Mollusca
-
Bivalvia
-
Pterioida
-
Pteriina
-
Pectinacea (1)
-
-
-
-
Cephalopoda
-
Ammonoidea (2)
-
Nautiloidea (7)
-
-
Gastropoda
-
Pteropoda (1)
-
Turritellidae (1)
-
-
Monoplacophora (2)
-
Polyplacophora (2)
-
Rostroconchia (2)
-
Scaphopoda
-
Dentalium (1)
-
-
Tentaculitida (1)
-
-
Porifera
-
Stromatoporoidea (4)
-
-
Protista
-
Foraminifera
-
Fusulinina
-
Fusulinidae (3)
-
-
-
Radiolaria (2)
-
-
Vermes
-
Annelida (7)
-
Polychaeta (2)
-
scolecodonts (4)
-
-
-
Metazoa (1)
-
microfossils
-
Charophyta (2)
-
Chitinozoa (5)
-
Conodonta
-
Icriodus (3)
-
Neognathodus (1)
-
Ozarkodina (1)
-
Panderodus (1)
-
Polygnathus (3)
-
-
Fusulinina
-
Fusulinidae (3)
-
-
scolecodonts (4)
-
-
palynomorphs
-
acritarchs (4)
-
Chitinozoa (5)
-
miospores
-
pollen (1)
-
-
-
Plantae
-
algae
-
calcareous algae (1)
-
Chlorophyta
-
Charophyta (2)
-
-
-
Pteridophyta
-
Filicopsida (3)
-
Lycopsida (1)
-
-
Spermatophyta
-
Gymnospermae
-
Pteridospermae (1)
-
-
-
-
problematic fossils (8)
-
thallophytes (3)
-
trails (1)
-
-
geochronology methods
-
K/Ar (1)
-
optically stimulated luminescence (1)
-
paleomagnetism (1)
-
Rb/Sr (2)
-
tephrochronology (1)
-
-
geologic age
-
Cenozoic
-
Quaternary
-
Holocene
-
upper Holocene (1)
-
-
Pleistocene
-
Illinoian (4)
-
upper Pleistocene
-
Sangamonian (1)
-
Wisconsinan
-
Lavery Till (1)
-
lower Wisconsinan (2)
-
upper Wisconsinan (2)
-
Woodfordian (1)
-
-
-
-
-
Tertiary
-
Neogene
-
Miocene
-
middle Miocene (1)
-
-
-
Paleogene
-
Eocene (1)
-
-
-
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous
-
Albian (1)
-
-
Upper Cretaceous
-
Campanian (1)
-
Gulfian
-
Austin Chalk (1)
-
Eagle Ford Formation (2)
-
-
Ripley Formation (1)
-
Senonian (1)
-
-
-
Jurassic
-
Upper Jurassic
-
Haynesville Formation (1)
-
Kimmeridge Clay (1)
-
-
-
Triassic
-
Lower Triassic (1)
-
-
-
Paleozoic
-
Bedford Shale (5)
-
Berea Sandstone (24)
-
Cambrian
-
Conasauga Group (2)
-
Lower Cambrian
-
Rome Formation (1)
-
Shady Dolomite (1)
-
-
Upper Cambrian
-
Copper Ridge Dolomite (4)
-
Dresbachian (1)
-
Eau Claire Formation (4)
-
Mount Simon Sandstone (12)
-
-
-
Carboniferous
-
Lower Carboniferous
-
Dinantian (3)
-
-
Mississippian
-
Borden Group (1)
-
Logan Formation (6)
-
Lower Mississippian
-
Cuyahoga Formation (8)
-
Kinderhookian (6)
-
Osagian (4)
-
Tournaisian (2)
-
-
Sunbury Shale (6)
-
Upper Mississippian
-
Chesterian
-
Imo Formation (1)
-
-
Greenbrier Limestone (1)
-
Mauch Chunk Formation (1)
-
Meramecian
-
Salem Limestone (1)
-
-
-
-
Pennsylvanian
-
Conemaugh Group (20)
-
Freeport Formation (2)
-
Kittanning Formation (1)
-
Lower Pennsylvanian
-
Morrowan (1)
-
New River Formation (1)
-
Pocahontas Formation (1)
-
-
Mattoon Formation (1)
-
Middle Pennsylvanian
-
Allegheny Group (24)
-
Atokan (5)
-
Breathitt Formation (3)
-
Carbondale Formation (1)
-
Desmoinesian (6)
-
Kanawha Formation (3)
-
-
Monongahela Group (9)
-
Pittsburgh Coal (1)
-
Pottsville Group (14)
-
Sharon Conglomerate (5)
-
Upper Pennsylvanian
-
Ames Limestone (1)
-
Glenshaw Formation (3)
-
Kasimovian (1)
-
Missourian (3)
-
Virgilian (1)
-
-
-
Upper Carboniferous
-
Westphalian (5)
-
-
-
Chattanooga Shale (1)
-
Devonian
-
Cedar City Formation (1)
-
Lower Devonian
-
Oriskany Sandstone (6)
-
-
Middle Devonian
-
Columbus Limestone (12)
-
Delaware Limestone (6)
-
Detroit River Group (3)
-
Dundee Limestone (3)
-
Eifelian (5)
-
Givetian (4)
-
Hamilton Group (6)
-
Jeffersonville Limestone (1)
-
Ludlowville Formation (3)
-
Marcellus Shale (7)
-
Moscow Formation (2)
-
Onondaga Limestone (4)
-
Sylvania Formation (1)
-
-
Traverse Group (2)
-
Upper Devonian
-
Cleveland Member (5)
-
Famennian
-
Wabamun Group (1)
-
-
Frasnian (2)
-
Huron Member (6)
-
Ohio Shale (19)
-
Olentangy Shale (6)
-
West Falls Formation (1)
-
-
-
Dunkard Group (8)
-
Helderberg Group (2)
-
Knox Group (7)
-
lower Paleozoic
-
Rose Run Sandstone (8)
-
-
New Albany Shale (3)
-
Ordovician
-
Clays Ferry Formation (1)
-
Lexington Limestone (3)
-
Lower Ordovician
-
Beekmantown Group (3)
-
-
Martinsburg Formation (1)
-
Middle Ordovician
-
Black River Group (5)
-
Chazy Group (1)
-
Decorah Shale (2)
-
Glenwood Shale (1)
-
High Bridge Group (1)
-
-
Montoya Group (1)
-
Trenton Group (15)
-
Upper Ordovician
-
Ashgillian (1)
-
Caradocian (1)
-
Cincinnatian
-
Maysvillian (5)
-
Richmondian (12)
-
-
Edenian (5)
-
Fairview Formation (18)
-
Hirnantian (1)
-
Juniata Formation (3)
-
Katian (11)
-
Kope Formation (27)
-
Maquoketa Formation (1)
-
Queenston Shale (1)
-
Trentonian (11)
-
Whitewater Formation (4)
-
-
Utica Shale (9)
-
-
Permian
-
Chase Group (1)
-
Council Grove Group (1)
-
Lower Permian (4)
-
Middle Permian (1)
-
Phosphoria Formation (1)
-
Upper Permian (1)
-
-
Sauk Sequence (2)
-
Silurian
-
Bass Islands Dolomite (1)
-
Lockport Formation (5)
-
Lower Silurian
-
Brassfield Formation (19)
-
Grimsby Sandstone (2)
-
Llandovery
-
Aeronian (1)
-
Telychian (1)
-
-
Tuscarora Formation (4)
-
Wenlock
-
Homerian (1)
-
-
Whirlpool Sandstone (1)
-
-
Middle Silurian
-
Clinton Group (19)
-
McKenzie Formation (1)
-
Rochester Formation (1)
-
-
Niagaran (9)
-
Upper Silurian
-
Cayugan (1)
-
Ludlow (1)
-
Salina Group (2)
-
-
-
upper Paleozoic
-
Antrim Shale (3)
-
Kaskaskia Sequence (1)
-
-
Woodford Shale (1)
-
-
Precambrian
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (1)
-
Neoproterozoic (1)
-
Paleoproterozoic (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
kimberlite (1)
-
plutonic rocks
-
granites (2)
-
ultramafics (1)
-
-
-
-
metamorphic rocks
-
K-bentonite (1)
-
metamorphic rocks
-
gneisses (1)
-
metasedimentary rocks (2)
-
-
turbidite (1)
-
-
meteorites
-
meteorites
-
iron meteorites (1)
-
stony irons
-
pallasite
-
Brenham Meteorite (1)
-
-
-
-
-
minerals
-
alloys (1)
-
carbonates
-
calcite (3)
-
dolomite (7)
-
Iceland spar (1)
-
siderite (1)
-
-
halides
-
bromides (1)
-
fluorides
-
fluorite (2)
-
-
-
K-bentonite (1)
-
minerals (6)
-
nitrates (1)
-
oxalates
-
whewellite (2)
-
-
oxides
-
goethite (2)
-
hematite (1)
-
iron oxides (2)
-
lepidocrocite (2)
-
pyrolusite (1)
-
-
silicates
-
framework silicates
-
feldspar group
-
alkali feldspar
-
K-feldspar (1)
-
-
-
silica minerals
-
quartz (7)
-
-
-
orthosilicates
-
nesosilicates
-
zircon group
-
zircon (2)
-
-
-
-
sheet silicates
-
chlorite group
-
chlorite (1)
-
-
clay minerals
-
kaolinite (2)
-
montmorillonite (1)
-
smectite (2)
-
vermiculite (2)
-
-
illite (6)
-
mica group
-
glauconite (1)
-
phlogopite (1)
-
-
rectorite (1)
-
-
-
sulfates
-
celestine (3)
-
gypsum (5)
-
halotrichite (1)
-
melanterite (1)
-
rozenite (1)
-
-
sulfides
-
greigite (1)
-
pyrite (5)
-
sphalerite (1)
-
wurtzite (2)
-
zinc sulfides (1)
-
-
-
Primary terms
-
absolute age (6)
-
Africa
-
Central Africa
-
Angola (1)
-
-
North Africa
-
Algeria (1)
-
Egypt (1)
-
Libya (2)
-
Morocco (2)
-
-
Southern Africa
-
South Africa (2)
-
-
-
Asia
-
Arabian Peninsula
-
Kuwait (1)
-
Saudi Arabia (1)
-
-
Far East
-
Burma (1)
-
China
-
Guangxi China (1)
-
-
Indonesia (1)
-
Laos (1)
-
Lesser Sunda Islands
-
Timor (1)
-
-
-
Indian Peninsula
-
India (3)
-
-
Middle East
-
Israel (1)
-
-
-
atmosphere (2)
-
Australasia
-
Australia
-
Victoria Australia (1)
-
Western Australia
-
Canning Basin (1)
-
-
-
-
bacteria (1)
-
biogeography (15)
-
biography (2)
-
bitumens (2)
-
brines (10)
-
Canada
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick (1)
-
-
Ontario
-
Manitoulin District Ontario
-
Manitoulin Island (2)
-
-
Wellington County Ontario
-
Guelph Ontario (2)
-
-
-
Quebec
-
Anticosti Island (2)
-
-
-
Western Canada
-
Alberta
-
Alberta Basin (1)
-
Peace River Arch (1)
-
-
British Columbia (1)
-
Manitoba (1)
-
Northwest Territories (2)
-
Saskatchewan (1)
-
-
-
carbon
-
C-13/C-12 (14)
-
C-14 (2)
-
organic carbon (2)
-
-
catalogs (2)
-
Cenozoic
-
Quaternary
-
Holocene
-
upper Holocene (1)
-
-
Pleistocene
-
Illinoian (4)
-
upper Pleistocene
-
Sangamonian (1)
-
Wisconsinan
-
Lavery Till (1)
-
lower Wisconsinan (2)
-
upper Wisconsinan (2)
-
Woodfordian (1)
-
-
-
-
-
Tertiary
-
Neogene
-
Miocene
-
middle Miocene (1)
-
-
-
Paleogene
-
Eocene (1)
-
-
-
-
chemical analysis (1)
-
Chordata
-
Vertebrata
-
Pisces
-
Osteichthyes
-
Actinopterygii
-
Chondrostei
-
Palaeonisciformes (1)
-
-
-
Sarcopterygii
-
Crossopterygii
-
Actinistia (1)
-
-
-
-
Placodermi
-
Arthrodira (3)
-
-
-
Tetrapoda
-
Amphibia
-
Labyrinthodontia
-
Temnospondyli (1)
-
-
Lepospondyli (2)
-
-
Mammalia
-
Theria
-
Eutheria
-
Perissodactyla
-
Hippomorpha
-
Equidae (1)
-
-
-
Proboscidea
-
Mastodontoidea (1)
-
-
-
-
-
Reptilia
-
Anapsida
-
Cotylosauria (1)
-
-
Diapsida
-
Lepidosauria
-
Squamata (1)
-
-
Rhynchosauria (1)
-
-
Synapsida
-
Pelycosauria (2)
-
Therapsida
-
Dicynodontia (1)
-
-
-
-
-
-
-
clay mineralogy (11)
-
climate change (3)
-
conservation (3)
-
construction materials
-
building stone (2)
-
dimension stone (1)
-
-
coprolites (2)
-
crust (7)
-
crystal chemistry (2)
-
crystal growth (4)
-
crystal structure (4)
-
dams (6)
-
data processing (10)
-
deformation (7)
-
diagenesis (17)
-
earthquakes (32)
-
ecology (2)
-
economic geology (84)
-
education (3)
-
electron microscopy (2)
-
energy sources (22)
-
engineering geology (17)
-
environmental geology (5)
-
Europe
-
Baltic region
-
Estonia (1)
-
Latvia (1)
-
-
Central Europe
-
Czech Republic
-
Bohemia (1)
-
-
Germany
-
North Rhine-Westphalia Germany
-
Sauerland (1)
-
-
-
-
Donets Basin (1)
-
Pannonian Basin (1)
-
Southern Europe
-
Yugoslavia (1)
-
-
Western Europe
-
Belgium (1)
-
France
-
Aquitaine Basin (1)
-
Paris Basin (1)
-
-
Scandinavia
-
Sweden
-
Gotland Sweden (2)
-
-
-
United Kingdom
-
Great Britain
-
England
-
West Midlands (1)
-
-
Scotland (1)
-
-
Northern Ireland (1)
-
-
-
-
faults (25)
-
folds (8)
-
foundations (2)
-
fractures (16)
-
geochemistry (22)
-
geochronology (4)
-
geomorphology (12)
-
geophysical methods (43)
-
geophysics (2)
-
geothermal energy (2)
-
glacial geology (16)
-
government agencies
-
survey organizations (2)
-
-
Graptolithina
-
Graptoloidea
-
Diplograptina (1)
-
-
-
ground water (20)
-
heat flow (2)
-
hydrogen
-
D/H (2)
-
deuterium (1)
-
-
hydrogeology (7)
-
hydrology (12)
-
ichnofossils
-
Palaeophycus (1)
-
Planolites (1)
-
Rusophycus (1)
-
Trypanites (1)
-
-
igneous rocks
-
kimberlite (1)
-
plutonic rocks
-
granites (2)
-
ultramafics (1)
-
-
-
inclusions
-
fluid inclusions (2)
-
-
industrial minerals (1)
-
intrusions (1)
-
Invertebrata
-
Arthropoda
-
Chelicerata
-
Merostomata
-
Eurypterida (2)
-
-
-
Mandibulata
-
Crustacea
-
Cirripedia (1)
-
Malacostraca (3)
-
Ostracoda
-
Beyrichicopina (1)
-
Kirkbyocopina (1)
-
Paleocopida (1)
-
Podocopida
-
Bairdiomorpha (1)
-
Cypridocopina (1)
-
-
-
-
Insecta
-
Pterygota
-
Neoptera
-
Endopterygota
-
Coleoptera (1)
-
-
Exopterygota
-
Blattaria (1)
-
Hemiptera (1)
-
-
-
-
-
Myriapoda (2)
-
-
Trilobitomorpha
-
Trilobita
-
Phacopida (2)
-
Ptychopariida
-
Cryptolithus (3)
-
-
-
-
-
Brachiopoda
-
Articulata
-
Orthida (2)
-
Pentamerida (1)
-
Spiriferida
-
Atrypidae (1)
-
-
Strophomenida
-
Sowerbyella (1)
-
Strophomena (1)
-
-
-
Inarticulata (1)
-
-
Bryozoa
-
Cryptostomata (1)
-
Ctenostomata (1)
-
Trepostomata (4)
-
-
Cnidaria
-
Anthozoa
-
Zoantharia
-
Rugosa (1)
-
-
-
-
Echinodermata
-
Asterozoa
-
Stelleroidea
-
Asteroidea (1)
-
Ophiuroidea (1)
-
-
-
Crinozoa
-
Blastoidea (1)
-
Crinoidea (24)
-
Cystoidea (1)
-
-
Echinozoa
-
Echinoidea (2)
-
Edrioasteroidea (2)
-
Ophiocistioidea (1)
-
-
-
Mollusca
-
Bivalvia
-
Pterioida
-
Pteriina
-
Pectinacea (1)
-
-
-
-
Cephalopoda
-
Ammonoidea (2)
-
Nautiloidea (7)
-
-
Gastropoda
-
Pteropoda (1)
-
Turritellidae (1)
-
-
Monoplacophora (2)
-
Polyplacophora (2)
-
Rostroconchia (2)
-
Scaphopoda
-
Dentalium (1)
-
-
Tentaculitida (1)
-
-
Porifera
-
Stromatoporoidea (4)
-
-
Protista
-
Foraminifera
-
Fusulinina
-
Fusulinidae (3)
-
-
-
Radiolaria (2)
-
-
Vermes
-
Annelida (7)
-
Polychaeta (2)
-
scolecodonts (4)
-
-
-
isostasy (1)
-
isotopes
-
radioactive isotopes
-
C-14 (2)
-
Pb-206/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
Rn-222 (1)
-
-
stable isotopes
-
C-13/C-12 (14)
-
D/H (2)
-
deuterium (1)
-
O-18/O-16 (5)
-
Pb-206/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
S-34/S-32 (1)
-
Sr-87/Sr-86 (3)
-
-
-
land subsidence (2)
-
land use (6)
-
limestone deposits (1)
-
lineation (1)
-
Malay Archipelago
-
Timor (1)
-
-
mantle (1)
-
maps (16)
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous
-
Albian (1)
-
-
Upper Cretaceous
-
Campanian (1)
-
Gulfian
-
Austin Chalk (1)
-
Eagle Ford Formation (2)
-
-
Ripley Formation (1)
-
Senonian (1)
-
-
-
Jurassic
-
Upper Jurassic
-
Haynesville Formation (1)
-
Kimmeridge Clay (1)
-
-
-
Triassic
-
Lower Triassic (1)
-
-
-
metal ores
-
iron ores (1)
-
lead-zinc deposits (2)
-
-
metals
-
alkali metals
-
potassium (1)
-
sodium (1)
-
-
alkaline earth metals
-
beryllium (1)
-
calcium (1)
-
strontium
-
Sr-87/Sr-86 (3)
-
-
-
cadmium (1)
-
chromium (1)
-
iron
-
ferrous iron (1)
-
-
lead
-
Pb-206/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
-
-
metamorphic rocks
-
gneisses (1)
-
metasedimentary rocks (2)
-
-
metamorphism (1)
-
metasomatism (3)
-
meteorites
-
iron meteorites (1)
-
stony irons
-
pallasite
-
Brenham Meteorite (1)
-
-
-
-
Mexico
-
Baja California (1)
-
-
mineral deposits, genesis (3)
-
mineral exploration (1)
-
mineralogy (16)
-
minerals (6)
-
mining geology (2)
-
Mohorovicic discontinuity (1)
-
nitrogen (1)
-
noble gases
-
argon (1)
-
helium (1)
-
radon
-
Rn-222 (1)
-
-
-
North America
-
Appalachian Basin (58)
-
Appalachians
-
Appalachian Plateau (9)
-
Central Appalachians (7)
-
Valley and Ridge Province (2)
-
-
Canadian Shield
-
Grenville Province (4)
-
-
Eastern Overthrust Belt (1)
-
Great Lakes
-
Lake Erie (9)
-
-
Great Lakes region (19)
-
Grenville Front (5)
-
Gulf Coastal Plain (6)
-
Michigan Basin (13)
-
Mississippi River basin (1)
-
Niagara Escarpment (2)
-
Niagara River (1)
-
Rocky Mountains (1)
-
Saint Lawrence Lowlands (1)
-
Western Canada Sedimentary Basin (1)
-
Western Interior
-
Western Interior Seaway (1)
-
-
Williston Basin (1)
-
-
nuclear facilities (4)
-
Oceania
-
Melanesia (1)
-
-
oil and gas fields (23)
-
orogeny (5)
-
oxygen
-
O-18/O-16 (5)
-
-
Pacific Ocean
-
East Pacific (1)
-
-
paleobotany (11)
-
paleoclimatology (14)
-
paleoecology (78)
-
paleogeography (32)
-
paleomagnetism (1)
-
paleontology (146)
-
Paleozoic
-
Bedford Shale (5)
-
Berea Sandstone (24)
-
Cambrian
-
Conasauga Group (2)
-
Lower Cambrian
-
Rome Formation (1)
-
Shady Dolomite (1)
-
-
Upper Cambrian
-
Copper Ridge Dolomite (4)
-
Dresbachian (1)
-
Eau Claire Formation (4)
-
Mount Simon Sandstone (12)
-
-
-
Carboniferous
-
Lower Carboniferous
-
Dinantian (3)
-
-
Mississippian
-
Borden Group (1)
-
Logan Formation (6)
-
Lower Mississippian
-
Cuyahoga Formation (8)
-
Kinderhookian (6)
-
Osagian (4)
-
Tournaisian (2)
-
-
Sunbury Shale (6)
-
Upper Mississippian
-
Chesterian
-
Imo Formation (1)
-
-
Greenbrier Limestone (1)
-
Mauch Chunk Formation (1)
-
Meramecian
-
Salem Limestone (1)
-
-
-
-
Pennsylvanian
-
Conemaugh Group (20)
-
Freeport Formation (2)
-
Kittanning Formation (1)
-
Lower Pennsylvanian
-
Morrowan (1)
-
New River Formation (1)
-
Pocahontas Formation (1)
-
-
Mattoon Formation (1)
-
Middle Pennsylvanian
-
Allegheny Group (24)
-
Atokan (5)
-
Breathitt Formation (3)
-
Carbondale Formation (1)
-
Desmoinesian (6)
-
Kanawha Formation (3)
-
-
Monongahela Group (9)
-
Pittsburgh Coal (1)
-
Pottsville Group (14)
-
Sharon Conglomerate (5)
-
Upper Pennsylvanian
-
Ames Limestone (1)
-
Glenshaw Formation (3)
-
Kasimovian (1)
-
Missourian (3)
-
Virgilian (1)
-
-
-
Upper Carboniferous
-
Westphalian (5)
-
-
-
Chattanooga Shale (1)
-
Devonian
-
Cedar City Formation (1)
-
Lower Devonian
-
Oriskany Sandstone (6)
-
-
Middle Devonian
-
Columbus Limestone (12)
-
Delaware Limestone (6)
-
Detroit River Group (3)
-
Dundee Limestone (3)
-
Eifelian (5)
-
Givetian (4)
-
Hamilton Group (6)
-
Jeffersonville Limestone (1)
-
Ludlowville Formation (3)
-
Marcellus Shale (7)
-
Moscow Formation (2)
-
Onondaga Limestone (4)
-
Sylvania Formation (1)
-
-
Traverse Group (2)
-
Upper Devonian
-
Cleveland Member (5)
-
Famennian
-
Wabamun Group (1)
-
-
Frasnian (2)
-
Huron Member (6)
-
Ohio Shale (19)
-
Olentangy Shale (6)
-
West Falls Formation (1)
-
-
-
Dunkard Group (8)
-
Helderberg Group (2)
-
Knox Group (7)
-
lower Paleozoic
-
Rose Run Sandstone (8)
-
-
New Albany Shale (3)
-
Ordovician
-
Clays Ferry Formation (1)
-
Lexington Limestone (3)
-
Lower Ordovician
-
Beekmantown Group (3)
-
-
Martinsburg Formation (1)
-
Middle Ordovician
-
Black River Group (5)
-
Chazy Group (1)
-
Decorah Shale (2)
-
Glenwood Shale (1)
-
High Bridge Group (1)
-
-
Montoya Group (1)
-
Trenton Group (15)
-
Upper Ordovician
-
Ashgillian (1)
-
Caradocian (1)
-
Cincinnatian
-
Maysvillian (5)
-
Richmondian (12)
-
-
Edenian (5)
-
Fairview Formation (18)
-
Hirnantian (1)
-
Juniata Formation (3)
-
Katian (11)
-
Kope Formation (27)
-
Maquoketa Formation (1)
-
Queenston Shale (1)
-
Trentonian (11)
-
Whitewater Formation (4)
-
-
Utica Shale (9)
-
-
Permian
-
Chase Group (1)
-
Council Grove Group (1)
-
Lower Permian (4)
-
Middle Permian (1)
-
Phosphoria Formation (1)
-
Upper Permian (1)
-
-
Sauk Sequence (2)
-
Silurian
-
Bass Islands Dolomite (1)
-
Lockport Formation (5)
-
Lower Silurian
-
Brassfield Formation (19)
-
Grimsby Sandstone (2)
-
Llandovery
-
Aeronian (1)
-
Telychian (1)
-
-
Tuscarora Formation (4)
-
Wenlock
-
Homerian (1)
-
-
Whirlpool Sandstone (1)
-
-
Middle Silurian
-
Clinton Group (19)
-
McKenzie Formation (1)
-
Rochester Formation (1)
-
-
Niagaran (9)
-
Upper Silurian
-
Cayugan (1)
-
Ludlow (1)
-
Salina Group (2)
-
-
-
upper Paleozoic
-
Antrim Shale (3)
-
Kaskaskia Sequence (1)
-
-
Woodford Shale (1)
-
-
palynomorphs
-
acritarchs (4)
-
Chitinozoa (5)
-
miospores
-
pollen (1)
-
-
-
paragenesis (3)
-
petroleum
-
natural gas
-
coalbed methane (2)
-
shale gas (3)
-
-
-
petrology (18)
-
phase equilibria (2)
-
phosphorus (1)
-
Plantae
-
algae
-
calcareous algae (1)
-
Chlorophyta
-
Charophyta (2)
-
-
-
Pteridophyta
-
Filicopsida (3)
-
Lycopsida (1)
-
-
Spermatophyta
-
Gymnospermae
-
Pteridospermae (1)
-
-
-
-
plate tectonics (3)
-
pollution (13)
-
Precambrian
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (1)
-
Neoproterozoic (1)
-
Paleoproterozoic (1)
-
-
-
-
problematic fossils (8)
-
reclamation (7)
-
reefs (9)
-
remote sensing (6)
-
reservoirs (3)
-
roads (5)
-
rock mechanics (15)
-
sea water (1)
-
sea-level changes (18)
-
sedimentary petrology (51)
-
sedimentary rocks
-
bone beds (3)
-
carbonate rocks
-
boundstone (1)
-
dolostone (12)
-
grainstone (2)
-
limestone
-
calcarenite (1)
-
micrite (2)
-
microbialite (1)
-
-
wackestone (1)
-
-
chemically precipitated rocks
-
chert (5)
-
evaporites
-
salt (2)
-
-
phosphate rocks (1)
-
tufa (1)
-
-
clastic rocks
-
arenite (1)
-
bentonite (3)
-
black shale (15)
-
claystone (2)
-
conglomerate (6)
-
diamictite (1)
-
graywacke (2)
-
mudstone (7)
-
red beds (1)
-
sandstone (49)
-
shale (44)
-
siltstone (5)
-
-
coal (18)
-
gas sands (1)
-
gas shale (2)
-
oil shale (4)
-
-
sedimentary structures
-
bedding plane irregularities
-
ripple marks (4)
-
-
biogenic structures
-
bioherms (2)
-
bioturbation (3)
-
carbonate banks (1)
-
microbial mats
-
cyanobacterial mats (1)
-
-
thrombolites (1)
-
-
current markings (1)
-
graded bedding (1)
-
planar bedding structures
-
bedding (2)
-
cross-bedding (7)
-
cyclothems (1)
-
laminations (1)
-
rhythmite (1)
-
-
rhizoliths (2)
-
secondary structures
-
concretions (6)
-
stylolites (1)
-
-
seismites (1)
-
soft sediment deformation
-
ball-and-pillow (1)
-
slump structures (1)
-
-
turbidity current structures (1)
-
-
sedimentation (58)
-
sediments
-
clastic sediments
-
alluvium (2)
-
clay (4)
-
colluvium (3)
-
diamicton (2)
-
drift (4)
-
gravel (3)
-
loess (1)
-
ooze (1)
-
outwash (2)
-
pebbles (2)
-
sand (5)
-
silt (6)
-
till (15)
-
-
marine sediments (1)
-
peat (4)
-
-
seismology (14)
-
shorelines (1)
-
slope stability (11)
-
soil mechanics (5)
-
soils
-
Alfisols (1)
-
Clay soils (1)
-
-
Solomon Islands (1)
-
South America
-
Brazil (3)
-
Venezuela (1)
-
-
stratigraphy (91)
-
structural analysis (2)
-
structural geology (15)
-
sulfur
-
S-34/S-32 (1)
-
-
tectonics
-
neotectonics (2)
-
-
tectonophysics (3)
-
thallophytes (3)
-
thermal waters (1)
-
underground installations (4)
-
United States
-
Alabama (5)
-
Allegheny Front (1)
-
Allegheny Plateau (3)
-
Anadarko Basin (1)
-
Arizona
-
Pima County Arizona
-
Tucson Arizona (1)
-
-
-
Arkansas
-
Searcy County Arkansas (1)
-
-
Atlantic Coastal Plain (1)
-
Black Warrior Basin (1)
-
California
-
Los Angeles County California
-
Pasadena California (1)
-
-
Orange County California (1)
-
San Francisco Bay region (1)
-
San Mateo County California (1)
-
-
Catskill Delta (2)
-
Cincinnati Arch (39)
-
Colorado (6)
-
Colorado Plateau (1)
-
Delaware (2)
-
Denver Basin (2)
-
Dunkard Basin (5)
-
Eastern U.S. (12)
-
Idaho (2)
-
Illinois
-
Grundy County Illinois (1)
-
Hamilton County Illinois (1)
-
Lawrence County Illinois (2)
-
Mason County Illinois (1)
-
Mazon Creek (1)
-
Richland County Illinois (2)
-
White County Illinois (1)
-
Williamson County Illinois (1)
-
-
-
-