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Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
North Africa
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
High Atlas (1)
-
-
-
Morocco
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
High Atlas (1)
-
-
-
-
-
Antarctica
-
East Antarctica (1)
-
Marie Byrd Land (1)
-
Ross Ice Shelf (1)
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Transantarctic Mountains (1)
-
-
Arctic region
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Greenland
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Northern Greenland (2)
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Peary Land (4)
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-
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Asia
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Arabian Peninsula
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Saudi Arabia (1)
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Central Asia
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Kazakhstan (2)
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Far East
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China
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Guangxi China (1)
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Guizhou China (3)
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Hubei China
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Yichang China (1)
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Hunan China (1)
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Inner Mongolia China (1)
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Jiangxi China (1)
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Liaoning China (1)
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North China Platform (1)
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Qilian Mountains (1)
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Qinghai China (1)
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Shaanxi China (1)
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Shandong China
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Shandong Peninsula (1)
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South China Block (2)
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Yangtze Platform (3)
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Yangtze Three Gorges (1)
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Yunnan China
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Kunming China (2)
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Korea
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South Korea (1)
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Mongolia (1)
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Thailand (1)
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Vietnam (1)
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Indian Peninsula
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India
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Himachal Pradesh India
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Spiti (1)
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Middle East
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Iran (2)
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Siberian Platform (2)
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Tajikistan (1)
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Tien Shan (1)
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Turkestan (1)
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Australasia
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Australia
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Queensland Australia
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Mount Isa Australia (1)
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South Australia
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Tasmania Australia (2)
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Caledonides (1)
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Canada
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Eastern Canada
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Maritime Provinces
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Nova Scotia
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Cape Breton Island (2)
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Meguma Terrane (1)
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Newfoundland and Labrador
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Newfoundland
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Avalon Peninsula (2)
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Port au Port Peninsula (1)
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Mackenzie Mountains (6)
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Nunavut
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Ellesmere Island (1)
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Queen Elizabeth Islands
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Western Canada
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British Columbia (4)
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Canadian Cordillera (2)
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Northwest Territories (4)
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Saskatchewan (1)
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Selwyn Basin (2)
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Yukon Territory
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Wernecke Mountains (1)
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Commonwealth of Independent States
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Kazakhstan (2)
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Russian Federation
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Siberian Platform (2)
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Tajikistan (1)
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Death Valley (1)
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Europe
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Baltic region
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Estonia
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Tallinn Estonia (1)
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Central Europe
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Czech Republic
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Barrandian Basin (1)
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Germany
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Bavaria Germany
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Franconian Forest (1)
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-
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Pyrenees
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Spanish Pyrenees (1)
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Southern Europe
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Iberian Peninsula
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Iberian Massif (1)
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Ossa-Morena Zone (2)
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Spain
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Andalusia Spain
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Cordoba Spain (1)
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Aragon Spain
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Saragossa Spain (1)
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Catalonia Spain (1)
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Iberian Mountains (2)
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Spanish Pyrenees (1)
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-
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Italy
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Apennines
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Apuane Alps (1)
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Northern Apennines (1)
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Sardinia Italy (2)
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Tuscany Italy
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Apuane Alps (1)
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Western Europe
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France
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Central Massif
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Montagne Noire (1)
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Scandinavia
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Sweden
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Kalmar Sweden
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Oland (1)
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Skane (1)
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Skane Sweden (1)
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Vastergotland (1)
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United Kingdom
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Great Britain
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England
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Shropshire England (2)
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Warwickshire England (1)
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Scotland (3)
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Wales
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Gwynedd Wales
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Harlech Dome (1)
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Grand Canyon (2)
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Marble Mountains (1)
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Mexico
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Oaxaca Mexico (1)
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Sonora Mexico (1)
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North America
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Appalachians (2)
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Basin and Range Province
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Great Basin (2)
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North American Cordillera
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Canadian Cordillera (2)
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Ogilvie Mountains (1)
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Rocky Mountains
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U. S. Rocky Mountains
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Wasatch Range (1)
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Pacific Ocean
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North Pacific
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Northwest Pacific
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South China Sea (1)
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West Pacific
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Northwest Pacific
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South China Sea (1)
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South America
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Argentina
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Mendoza Argentina (2)
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Bolivia (1)
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Brazil
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Precordillera (2)
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United States
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Alabama (1)
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Arizona (2)
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California
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Inyo County California
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Funeral Mountains (1)
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San Bernardino County California (1)
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Colorado (1)
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Georgia
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Murray County Georgia (1)
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Great Basin (2)
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Idaho
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Bear Lake County Idaho (1)
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Oneida County Idaho (1)
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Maine
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Penobscot Bay (1)
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Massachusetts (1)
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Mojave Desert (1)
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Nevada
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Esmeralda County Nevada
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Goldfield Nevada (1)
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Lincoln County Nevada (5)
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New York
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Tompkins County New York
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Ithaca New York (1)
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-
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North Carolina (1)
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Pennsylvania
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Dauphin County Pennsylvania (1)
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Rhode Island (1)
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South Carolina (1)
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Texas
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Midland Basin (1)
-
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U. S. Rocky Mountains
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Wasatch Range (1)
-
-
Utah
-
Box Elder County Utah (4)
-
Cache County Utah (1)
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Drum Mountains (3)
-
Millard County Utah
-
House Range (6)
-
-
-
Vermont
-
Franklin County Vermont (1)
-
-
-
-
commodities
-
metal ores
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copper ores (1)
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lead ores (1)
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lead-zinc deposits (1)
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silver ores (1)
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zinc ores (1)
-
-
mineral exploration (1)
-
-
elements, isotopes
-
carbon
-
C-13/C-12 (15)
-
organic carbon (1)
-
-
isotope ratios (16)
-
isotopes
-
radioactive isotopes
-
U-238 (1)
-
-
stable isotopes
-
C-13/C-12 (15)
-
Hf-177/Hf-176 (1)
-
Nd-144/Nd-143 (1)
-
O-18/O-16 (3)
-
S-34/S-32 (3)
-
Sr-87/Sr-86 (1)
-
-
-
metals
-
actinides
-
uranium
-
U-238 (1)
-
-
-
alkaline earth metals
-
calcium (1)
-
magnesium (1)
-
strontium
-
Sr-87/Sr-86 (1)
-
-
-
hafnium
-
Hf-177/Hf-176 (1)
-
-
manganese (1)
-
mercury (2)
-
platinum group
-
osmium (1)
-
-
rare earths
-
neodymium
-
Nd-144/Nd-143 (1)
-
-
-
silver (1)
-
-
oxygen
-
O-18/O-16 (3)
-
-
sulfur
-
S-34/S-32 (3)
-
-
-
fossils
-
burrows (4)
-
Chordata
-
Vertebrata (2)
-
-
coprolites (2)
-
Graptolithina
-
Graptoloidea (2)
-
-
Hemichordata (5)
-
ichnofossils
-
Cruziana (1)
-
Rusophycus (1)
-
-
Invertebrata
-
Archaeocyatha (1)
-
Arthropoda
-
Chelicerata (1)
-
Mandibulata
-
Crustacea
-
Branchiopoda (2)
-
Ostracoda (2)
-
-
-
Trilobitomorpha
-
Trilobita
-
Agnostida (5)
-
Corynexochida (5)
-
Ptychopariida
-
Olenidae (1)
-
-
Redlichiida (1)
-
-
-
-
Brachiopoda
-
Articulata
-
Rhynchonellida (1)
-
Spiriferida
-
Atrypidae (1)
-
-
-
Inarticulata
-
Lingula (1)
-
-
-
Bryozoa
-
Cryptostomata (1)
-
-
Cnidaria
-
Anthozoa
-
Octocorallia (1)
-
-
-
Echinodermata
-
Crinozoa
-
Eocrinoidea (1)
-
-
-
Mollusca
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Bivalvia (3)
-
Gastropoda (1)
-
Hyolithes (5)
-
-
Porifera
-
Demospongea (1)
-
-
Vermes
-
Annelida (1)
-
Chaetognatha (1)
-
-
-
Metazoa (1)
-
microfossils
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Conodonta (2)
-
-
palynomorphs
-
acritarchs (6)
-
-
Plantae
-
algae
-
Epiphyton (1)
-
-
-
problematic fossils (6)
-
Pterobranchia (4)
-
-
geochronology methods
-
Ar/Ar (1)
-
paleomagnetism (1)
-
Re/Os (1)
-
Sr/Sr (1)
-
U/Pb (12)
-
-
geologic age
-
Cenozoic (1)
-
Mesozoic (1)
-
Paleozoic
-
Cambrian
-
Carrara Formation (1)
-
Conasauga Group (1)
-
Lower Cambrian
-
Atdabanian (1)
-
Kinzers Formation (1)
-
Terreneuvian (3)
-
-
Middle Cambrian
-
Burgess Shale (11)
-
Marjum Formation (4)
-
Wheeler Formation (8)
-
Zhangxia Formation (2)
-
-
Mount Read Volcanics (1)
-
Pioche Shale (4)
-
Upper Cambrian
-
Furongian
-
Jiangshanian (1)
-
Paibian (4)
-
-
Steptoean (5)
-
-
-
Carboniferous
-
Mississippian
-
Barnett Shale (1)
-
-
Pennsylvanian
-
Middle Pennsylvanian
-
Atokan
-
Atoka Formation (1)
-
-
-
-
-
Cow Head Group (2)
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Devonian
-
Middle Devonian
-
Hamilton Group (1)
-
Moscow Formation (1)
-
-
Thirtyone Formation (1)
-
-
lower Paleozoic (4)
-
Ordovician
-
Lower Ordovician
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Ellenburger Group (1)
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Floian (1)
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Tremadocian (3)
-
-
Martinsburg Formation (1)
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Meguma Group (1)
-
Middle Ordovician
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Darriwilian (1)
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Simpson Group (1)
-
-
Montoya Group (1)
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Upper Ordovician
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Caradocian (1)
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Hirnantian (1)
-
-
-
Permian
-
Lower Permian
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Wolfcampian (1)
-
-
-
Silurian
-
Lower Silurian (1)
-
-
Woodford Shale (1)
-
-
Precambrian
-
upper Precambrian
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Proterozoic
-
Neoproterozoic
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Ediacaran (6)
-
Moine Supergroup (1)
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Tonian (1)
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Vendian (2)
-
-
-
-
-
-
igneous rocks
-
igneous rocks
-
plutonic rocks
-
gabbros (1)
-
granites (1)
-
-
volcanic rocks
-
basalts
-
mid-ocean ridge basalts (1)
-
ocean-island basalts (1)
-
-
pyroclastics
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tuff (1)
-
-
-
-
-
metamorphic rocks
-
metamorphic rocks
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amphibolites (1)
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gneisses (1)
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metasedimentary rocks (1)
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turbidite (1)
-
-
minerals
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carbonates
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aragonite (1)
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calcite (1)
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dolomite (1)
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phosphates
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apatite (1)
-
-
silicates
-
orthosilicates
-
nesosilicates
-
zircon group
-
zircon (11)
-
-
-
-
sheet silicates
-
chlorite group
-
chlorite (1)
-
-
clay minerals
-
kaolinite (2)
-
-
illite (1)
-
mica group
-
glauconite (2)
-
-
-
-
-
Primary terms
-
absolute age (12)
-
Africa
-
North Africa
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
High Atlas (1)
-
-
-
Morocco
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
High Atlas (1)
-
-
-
-
-
Antarctica
-
East Antarctica (1)
-
Marie Byrd Land (1)
-
Ross Ice Shelf (1)
-
Transantarctic Mountains (1)
-
-
Arctic region
-
Greenland
-
Northern Greenland (2)
-
Peary Land (4)
-
-
-
Asia
-
Arabian Peninsula
-
Saudi Arabia (1)
-
-
Central Asia
-
Kazakhstan (2)
-
-
Far East
-
China
-
Guangxi China (1)
-
Guizhou China (3)
-
Hubei China
-
Yichang China (1)
-
-
Hunan China (1)
-
Inner Mongolia China (1)
-
Jiangxi China (1)
-
Liaoning China (1)
-
North China Platform (1)
-
Qilian Mountains (1)
-
Qinghai China (1)
-
Shaanxi China (1)
-
Shandong China
-
Shandong Peninsula (1)
-
-
South China Block (2)
-
Yangtze Platform (3)
-
Yangtze Three Gorges (1)
-
Yunnan China
-
Kunming China (2)
-
-
-
Korea
-
South Korea (1)
-
-
Mongolia (1)
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Thailand (1)
-
Vietnam (1)
-
-
Indian Peninsula
-
India
-
Himachal Pradesh India
-
Spiti (1)
-
-
-
-
Middle East
-
Iran (2)
-
-
Siberian Platform (2)
-
Tajikistan (1)
-
Tien Shan (1)
-
Turkestan (1)
-
-
atmosphere (1)
-
Australasia
-
Australia
-
Queensland Australia
-
Mount Isa Australia (1)
-
-
South Australia
-
Kangaroo Island (1)
-
-
Tasmania Australia (2)
-
-
-
biogeography (17)
-
Canada
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick (2)
-
Nova Scotia
-
Cape Breton Island (2)
-
-
-
Meguma Terrane (1)
-
Newfoundland and Labrador
-
Newfoundland
-
Avalon Peninsula (2)
-
Port au Port Peninsula (1)
-
-
-
-
Mackenzie Mountains (6)
-
Nunavut
-
Ellesmere Island (1)
-
-
Queen Elizabeth Islands
-
Ellesmere Island (1)
-
-
Western Canada
-
British Columbia (4)
-
Canadian Cordillera (2)
-
Northwest Territories (4)
-
Saskatchewan (1)
-
Selwyn Basin (2)
-
Yukon Territory
-
Wernecke Mountains (1)
-
-
-
-
carbon
-
C-13/C-12 (15)
-
organic carbon (1)
-
-
Cenozoic (1)
-
Chordata
-
Vertebrata (2)
-
-
climate change (1)
-
coprolites (2)
-
data processing (2)
-
deformation (3)
-
diagenesis (4)
-
earthquakes (1)
-
epeirogeny (1)
-
Europe
-
Baltic region
-
Estonia
-
Tallinn Estonia (1)
-
-
-
Central Europe
-
Czech Republic
-
Barrandian Basin (1)
-
-
Germany
-
Bavaria Germany
-
Franconian Forest (1)
-
-
-
-
Pyrenees
-
Spanish Pyrenees (1)
-
-
Southern Europe
-
Iberian Peninsula
-
Iberian Massif (1)
-
Ossa-Morena Zone (2)
-
Spain
-
Andalusia Spain
-
Cordoba Spain (1)
-
-
Aragon Spain
-
Saragossa Spain (1)
-
-
Catalonia Spain (1)
-
Iberian Mountains (2)
-
Spanish Pyrenees (1)
-
-
-
Italy
-
Apennines
-
Apuane Alps (1)
-
Northern Apennines (1)
-
-
Sardinia Italy (2)
-
Tuscany Italy
-
Apuane Alps (1)
-
-
-
-
Western Europe
-
France
-
Central Massif
-
Montagne Noire (1)
-
-
-
Scandinavia
-
Sweden
-
Kalmar Sweden
-
Oland (1)
-
-
Skane (1)
-
Skane Sweden (1)
-
Vastergotland (1)
-
-
-
United Kingdom
-
Great Britain
-
England
-
Shropshire England (2)
-
Warwickshire England (1)
-
-
Scotland (3)
-
Wales
-
Gwynedd Wales
-
Harlech Dome (1)
-
-
-
-
-
-
-
faults (5)
-
folds (1)
-
foliation (1)
-
geochemistry (6)
-
geomorphology (1)
-
glacial geology (1)
-
Graptolithina
-
Graptoloidea (2)
-
-
Hemichordata (5)
-
ichnofossils
-
Cruziana (1)
-
Rusophycus (1)
-
-
igneous rocks
-
plutonic rocks
-
gabbros (1)
-
granites (1)
-
-
volcanic rocks
-
basalts
-
mid-ocean ridge basalts (1)
-
ocean-island basalts (1)
-
-
pyroclastics
-
tuff (1)
-
-
-
-
intrusions (1)
-
Invertebrata
-
Archaeocyatha (1)
-
Arthropoda
-
Chelicerata (1)
-
Mandibulata
-
Crustacea
-
Branchiopoda (2)
-
Ostracoda (2)
-
-
-
Trilobitomorpha
-
Trilobita
-
Agnostida (5)
-
Corynexochida (5)
-
Ptychopariida
-
Olenidae (1)
-
-
Redlichiida (1)
-
-
-
-
Brachiopoda
-
Articulata
-
Rhynchonellida (1)
-
Spiriferida
-
Atrypidae (1)
-
-
-
Inarticulata
-
Lingula (1)
-
-
-
Bryozoa
-
Cryptostomata (1)
-
-
Cnidaria
-
Anthozoa
-
Octocorallia (1)
-
-
-
Echinodermata
-
Crinozoa
-
Eocrinoidea (1)
-
-
-
Mollusca
-
Bivalvia (3)
-
Gastropoda (1)
-
Hyolithes (5)
-
-
Porifera
-
Demospongea (1)
-
-
Vermes
-
Annelida (1)
-
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GeoRef Categories
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1-20 OF 202 RESULTS FOR
Drumian
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Journal Article
Trilobite biostratigraphy of the Cambrian 5 and Drumian stages, Series 3 (Laurentian Delamaran, Topazan, and Marjuman stages, Lincolnian Series) of the lower Emigrant Formation at Clayton Ridge, Esmeralda County, Nevada Available to Purchase
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 May 2018
Journal of Paleontology (2018) 92 (S76): 1–44.
.... The 100 m thick lower limestone and siltstone member of the Emigrant Formation at Clayton Ridge ranges in age from the Bolbolenellus euryparia / Nephrolenellus multinodus Zone (Laurentian Dyeran Stage) to the Cedaria brevifrons Zone (Laurentian Marjuman Stage; Drumian Stage; this study). The 40 trilobites...
Journal Article
QUANTITATIVE ANALYSIS OF REPAIRED AND UNREPAIRED DAMAGE TO TRILOBITES FROM THE CAMBRIAN (STAGE 4, DRUMIAN) IBERIAN CHAINS, NE SPAIN Available to Purchase
Journal: PALAIOS
Publisher: SEPM Society for Sedimentary Geology
Published: 12 December 2017
PALAIOS (2017) 32 (12): 750–761.
... (Huérmeda Formation, Cambrian Series 2, Stage 4), or 23 complete Eccaparadoxides pradoanus thoraces from Mesones de Isuela (Murero Formation, Cambrian Series 3, Drumian). Ten injuries on 69 E. pradoanus thoraces from Purujosa (Murero Formation, Cambrian Series 3, Drumian) were noted. There is no evidence...
Includes: Supplemental Content
Journal Article
The mid-Cambrian (Series 3, Drumian–Guzhangian; Marjuman) trilobite Holmdalia Robison, 1988, in western Newfoundland and its biostratigraphic significance Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 20 January 2017
Canadian Journal of Earth Sciences (2017) 54 (2): 113–128.
... Formation of western Newfoundland record a succession of at least seven species that spans most of the Drumian and all of the Guzhangian stages, and demonstrate that the genus has considerable, previously unrecognized biostratigraphic potential. Older, Drumian species, including the type species, H...
Journal Article
Soft-bodied biota from the middle Cambrian (Drumian) Rockslide Formation, Mackenzie Mountains, northwestern Canada Available to Purchase
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 January 2015
Journal of Paleontology (2015) 89 (1): 51–71.
...Julien Kimmig; Brian R. Pratt Abstract A new Burgess Shale-type Lagerstätte is described from the middle Cambrian (Series 3, Drumian) Rockslide Formation of the Mackenzie Mountains, Northwest Territories, Canada. The Rockslide Formation is a unit of deeper water ramp to slope, mixed carbonate...
Image
Generalized stratigraphy of the middle Cambrian (Drumian) Rockslide Formati... Available to Purchase
in Evidence for microbially mediated silver enrichment in a middle Cambrian Burgess Shale-type deposit, Mackenzie Mountains, northwestern Canada
> Canadian Journal of Earth Sciences
Published: 18 August 2021
Fig. 2. Generalized stratigraphy of the middle Cambrian (Drumian) Rockslide Formation in the Ravens Throat River area, Northwest Territories. Gray-coloured intervals contain Burgess Shale-type soft-bodied fossils; coprolites are limited to the lower fossil bed. Modified from Kimmig and Pratt
Image
Specimens examined in this study, including original and new taxonomic inte... Available to Purchase
Published: 24 July 2017
Table 1 Specimens examined in this study, including original and new taxonomic interpretations. Catalogue number Figure Locality Age Previous interpretation Reference New interpretation Fragment KUMIP 153093a/b 5.10, 5.11 Wheeler Formation Cambrian, Drumian Peytoia
Image
Occurrence of Ravens Throat River taxa in other western Laurentian Lagerstä... Available to Purchase
in Soft-bodied biota from the middle Cambrian (Drumian) Rockslide Formation, Mackenzie Mountains, northwestern Canada
> Journal of Paleontology
Published: 01 January 2015
Table 1 Occurrence of Ravens Throat River taxa in other western Laurentian Lagerstätten:
Pioche Formation (series 3, stage 5); Burgess Shale (series 3, stage 5); Marjum
Formation (series 3, Drumian); Wheeler Formation (series 3, Drumian). √=represented, x
Journal Article
Carbon chemostratigraphy of the Cambrian-Ordovician transition in a midlatitude mixed platform, Montagne Noire, France Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 01 July 2008
GSA Bulletin (2008) 120 (7-8): 962–975.
...J. Javier Álvaro; Blanca Bauluz; Ignacio Subías; Catherine Pierre; Daniel Vizcaïno Abstract The Cambrian Drumian Carbon Isotope Excursion (DICE) and the Steptoean Positive Carbon Isotope Excursion (SPICE) have been so far reported in subtropical platforms: the DICE event is a large negative...
Journal Article
Frenchman Mountain Dolostone: A new formation of the Cambrian Tonto Group, Grand Canyon and Basin and Range, USA Open Access
Journal: Geosphere
Publisher: Geological Society of America
Published: 23 March 2023
Geosphere (2023) 19 (3): 719–747.
... the Grand Canyon and central Basin and Range, USA. This flat-topped carbonate platform deposit is the uppermost unit of the Tonto Group, replacing the informally named “undifferentiated dolomites.” The unit records two global chemostratigraphic events—the Drumian Carbon Isotope Excursion (DICE), when δ 13 C...
Journal Article
MICROBIALITE DEVELOPMENT DURING THE PROTRACTED INHIBITION OF SKELETAL-DOMINATED REEFS IN THE ZHANGXIA FORMATION (CAMBRIAN SERIES 3) IN SHANDONG PROVINCE, NORTH CHINA Available to Purchase
Journal: PALAIOS
Publisher: SEPM Society for Sedimentary Geology
Published: 01 September 2017
PALAIOS (2017) 32 (9): 559–571.
...YOICHI EZAKI; JIANBO LIU; NATSUKO ADACHI; ZHEN YAN Abstract: Coralomorph-lithistid demosponge-microbial reefs are developed in deep subtidal settings of the lower part of the Zhangxia Formation ( Crepicephalina Zone: Drumian of Cambrian Series 3) in the Jiulongshan section of the Laiwu area...
Image
Principal Component Analysis plot of the semilandmarked breaks (same as Fi... Available to Purchase
in QUANTITATIVE ANALYSIS OF REPAIRED AND UNREPAIRED DAMAGE TO TRILOBITES FROM THE CAMBRIAN (STAGE 4, DRUMIAN) IBERIAN CHAINS, NE SPAIN
> PALAIOS
Published: 12 December 2017
examples (points without black dots), shows the positive assignment of new material to the ichnotaxon. Key: circles = Huérmeda Formation (Spain, Cambrian Stage 4); triangles with point upwards: Mansilla Formation (Spain, Cambrian Stage 5); diamonds: Murero Formation (Spain, Cambrian Drumian); triangles
Journal Article
A link in the chain of the Cambrian zooplankton: bradoriid arthropods invade the water column Available to Purchase
Journal: Geological Magazine
Publisher: Cambridge University Press
Published: 05 March 2015
Geological Magazine (2015) 152 (5): 923–934.
..., favouring oxygenated waters, as suggested by their anatomy, lithofacies distribution, faunal associates and provinciality. Most bradoriids were extinct by the end of the Drumian Age (middle of Cambrian Epoch 3). The post-Drumian is characterized by widespread dysoxic shelf lithofacies in southern Britain...
Image
Composite δ 13 C curve and global standard chronostratigraphic Cambrian sca... Available to Purchase
in Carbon chemostratigraphy of the Cambrian-Ordovician transition in a midlatitude mixed platform, Montagne Noire, France
> GSA Bulletin
Published: 01 July 2008
Figure 1. Composite δ 13 C curve and global standard chronostratigraphic Cambrian scale showing the isotopic shifts DICE (Drumian carbon isotope excursion) and SPICE (Steptoean positive isotopic carbon excursion) discussed in the text (modified from Zhu et al., 2006 ). BACE—Basal Cambrian Carbon
Image
Box plots of geographic occupancy of species for 10 Cambrian stages. Dru, D... Open Access
Published: 01 May 2023
Figure 6. Box plots of geographic occupancy of species for 10 Cambrian stages. Dru, Drumian; For, Fortunian; Guz, Guzhangian; Jia, Jiangshanian; Pai, Paibian; Wul, Wuliuan; St2, Stage 2; St3, Stage 3; St4, Stage 4; St10, Stage 10.
Image
By-cell biogeographic turnover and by-bioregion turnover (emergence and dis... Open Access
Published: 01 May 2023
Figure 2. By-cell biogeographic turnover and by-bioregion turnover (emergence and disintegration) throughout the Cambrian. The estimates are the averages of 400 random grid rotations. Dru, Drumian; For, Fortunian; Guz, Guzhangian; Jia, Jiangshanian; Pai, Paibian; Wul, Wuliuan; St2, Stage 2; St3
Image
Stratigraphic and geographical occurrences of acritarch assemblages from ca... Open Access
in Origin and age of the Shenshan tectonic mélange in the Jiangshan-Shaoxing-Pingxiang Fault and late Early Paleozoic juxtaposition of the Yangtze Block and the West Cathaysia terrane, South China
> GSA Bulletin
Published: 07 April 2021
Figure 13. Stratigraphic and geographical occurrences of acritarch assemblages from carbonaceous shales in the Cambrian (data from Baltica and Poland modified from Moczydłowska, 1991 , 1998 ; data from Tarim, Yangtze, and Lesser Himalaya from Yao et al., 2005 ). Guzh.—Guzhangian; Drum.—Drumian
Image
Global species diversity of marine invertebrates through the Cambrian based... Open Access
Published: 01 May 2023
Figure 5. Global species diversity of marine invertebrates through the Cambrian based on shareholder quorum subsampling with 60% frequency coverage per stage. Error bar is standard deviation of 100 trials. Dru, Drumian; For, Fortunian; Guz, Guzhangian; Jia, Jiangshanian; Pai, Paibian; Wul
Image
Trajectory of sample-standardized diversity of actively mobile occurrences ... Open Access
Published: 01 May 2023
Figure 7. Trajectory of sample-standardized diversity of actively mobile occurrences in the Cambrian based on shareholder quorum subsampling with 60% frequency coverage per stage. Error bar is standard deviation of 100 trials. Dru, Drumian; For, Fortunian; Guz, Guzhangian; Jia, Jiangshanian; Pai
Image
Stratigraphic log of the Campelou section (Pardailhan nappe) with biostrati... Available to Purchase
in Carbon chemostratigraphy of the Cambrian-Ordovician transition in a midlatitude mixed platform, Montagne Noire, France
> GSA Bulletin
Published: 01 July 2008
Figure 5. Stratigraphic log of the Campelou section (Pardailhan nappe) with biostratigraphic and chemostratigraphic data. XRD—X-ray diffraction; TOC—total organic carbon; PDB—Peedee belemnite; FAD—first appearance datum; DICE—Drumian Carbon Isotope Excursion; SPICE—Steptoean Positive Carbon
Journal Article
Environmental and trilobite diversity changes during the middle-late Cambrian SPICE event Available to Purchase
Lei Zhang, Thomas J. Algeo, Laishi Zhao, Tais W. Dahl, Zhong-Qiang Chen, Zihu Zhang, Simon W. Poulton, Nigel C. Hughes, Xueqing Gou, Chao Li
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 12 May 2023
GSA Bulletin (2024) 136 (1-2): 810–828.
..., spanning the Drumian to lower Jiangshanian. Redox data indicate locally/regionally well-oxygenated conditions throughout the SPICE event in both study sections except for low-oxygen (hypoxic) conditions within the rising limb of the SPICE (early-middle Paibian) at Duibian. As in coeval sections globally...
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