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all geography including DSDP/ODP Sites and Legs
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Africa
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North Africa
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Libya
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Murzuk Basin (1)
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Sahara (1)
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Southern Africa
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South Africa
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Western Cape Province South Africa (1)
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Asia
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Far East
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China
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Chongqing China (1)
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Guizhou China (1)
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Sichuan Basin (1)
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Yangtze Platform (1)
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Krasnoyarsk Russian Federation (1)
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Siberia (2)
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Canada
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Eastern Canada
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Quebec
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Anticosti Island (2)
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Commonwealth of Independent States
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Russian Federation
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Krasnoyarsk Russian Federation (1)
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Orenburg Russian Federation (1)
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Sakmara Zone (1)
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Urals
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Southern Urals (1)
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Europe
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Estonia (2)
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Latvia (1)
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Central Europe
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Poland
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Swiety Krzyz Mountains (1)
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Orenburg Russian Federation (1)
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Montagne Noire (1)
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Herault France (1)
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Ireland (2)
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Norway
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Andes
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Eastern Cordillera (1)
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Argentina (1)
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Precordillera (1)
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United States
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Illinois (1)
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Iowa (1)
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Kentucky
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Bath County Kentucky (1)
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Missouri (1)
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Oklahoma (1)
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commodities
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bitumens (1)
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elements, isotopes
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carbon
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C-13/C-12 (2)
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isotope ratios (2)
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isotopes
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stable isotopes
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C-13/C-12 (2)
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Nd-144/Nd-143 (1)
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metals
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rare earths
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neodymium
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Nd-144/Nd-143 (1)
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fossils
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borings (1)
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Graptolithina
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Graptoloidea
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Monograptina
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Monograptus (1)
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Hemichordata (2)
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ichnofossils (1)
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Invertebrata
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Arthropoda
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Trilobitomorpha
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Trilobita (1)
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Brachiopoda
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Articulata
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Orthida (1)
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Rhynchonellida (1)
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Spiriferida
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Atrypidae (1)
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Cnidaria
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Anthozoa
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Zoantharia
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Rugosa (2)
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Tabulata (2)
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Echinodermata
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Crinozoa
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Crinoidea (1)
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Mollusca
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Bivalvia (1)
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Porifera
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Stromatoporoidea (1)
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microfossils
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Chitinozoa (2)
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Conodonta (3)
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palynomorphs
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Chitinozoa (2)
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Pterobranchia (1)
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geologic age
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Cenozoic
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Tertiary
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Neogene (1)
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Paleozoic
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Ellis Bay Formation (1)
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Merrimack Group (1)
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Ordovician
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Upper Ordovician
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Ashgillian (5)
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Hirnantian (9)
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Katian (3)
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Sandbian (1)
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Wufeng Formation (1)
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Silurian
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Lower Silurian
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Brassfield Formation (1)
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Llandovery
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Aeronian (7)
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Rhuddanian (28)
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Telychian (3)
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Wenlock
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Homerian (1)
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Sheinwoodian (3)
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Upper Silurian
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Ludlow
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Gorstian (1)
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Ludfordian (1)
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Pridoli (1)
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igneous rocks
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igneous rocks
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volcanic rocks
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basalts
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flood basalts (1)
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trap rocks (1)
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metamorphic rocks
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metamorphic rocks
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marbles (1)
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minerals
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carbonates
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spurrite (1)
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silicates
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chain silicates
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pyroxene group
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clinopyroxene
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diopside (1)
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wollastonite group
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wollastonite (1)
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framework silicates
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silica minerals
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quartz (1)
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orthosilicates
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nesosilicates
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garnet group
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grossular (1)
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merwinite (1)
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spurrite (1)
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sorosilicates
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melilite group
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melilite (1)
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sheet silicates
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clay minerals (1)
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Primary terms
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Africa
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North Africa
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Libya
-
Murzuk Basin (1)
-
-
-
Sahara (1)
-
Southern Africa
-
South Africa
-
Western Cape Province South Africa (1)
-
-
-
-
Asia
-
Far East
-
China
-
Chongqing China (1)
-
Guizhou China (1)
-
Sichuan Basin (1)
-
Yangtze Platform (1)
-
-
-
Krasnoyarsk Russian Federation (1)
-
Siberia (2)
-
-
biogeography (4)
-
bitumens (1)
-
Canada
-
Eastern Canada
-
Quebec
-
Anticosti Island (2)
-
-
-
-
carbon
-
C-13/C-12 (2)
-
-
Cenozoic
-
Tertiary
-
Neogene (1)
-
-
-
Europe
-
Baltic region
-
Estonia (2)
-
Latvia (1)
-
-
Central Europe
-
Poland
-
Swiety Krzyz Mountains (1)
-
-
-
Orenburg Russian Federation (1)
-
Pyrenees
-
Spanish Pyrenees (1)
-
-
Sakmara Zone (1)
-
Southern Europe
-
Iberian Peninsula
-
Spain
-
Spanish Pyrenees (1)
-
-
-
-
Western Europe
-
France
-
Aude France
-
Mouthoumet Massif (1)
-
-
Central Massif
-
Montagne Noire (1)
-
-
Herault France (1)
-
-
Ireland (2)
-
Scandinavia
-
Norway
-
Oslo Norway (1)
-
-
Sweden
-
Gotland Sweden (1)
-
-
-
United Kingdom
-
Great Britain
-
Scotland (1)
-
Wales (2)
-
-
-
-
-
geophysical methods (1)
-
Graptolithina
-
Graptoloidea
-
Monograptina
-
Monograptus (1)
-
-
-
-
Hemichordata (2)
-
ichnofossils (1)
-
igneous rocks
-
volcanic rocks
-
basalts
-
flood basalts (1)
-
trap rocks (1)
-
-
-
-
Invertebrata
-
Arthropoda
-
Trilobitomorpha
-
Trilobita (1)
-
-
-
Brachiopoda
-
Articulata
-
Orthida (1)
-
Rhynchonellida (1)
-
Spiriferida
-
Atrypidae (1)
-
-
-
-
Cnidaria
-
Anthozoa
-
Zoantharia
-
Rugosa (2)
-
Tabulata (2)
-
-
-
-
Echinodermata
-
Crinozoa
-
Crinoidea (1)
-
-
-
Mollusca
-
Bivalvia (1)
-
-
Porifera
-
Stromatoporoidea (1)
-
-
-
isotopes
-
stable isotopes
-
C-13/C-12 (2)
-
Nd-144/Nd-143 (1)
-
-
-
magmas (1)
-
metals
-
rare earths
-
neodymium
-
Nd-144/Nd-143 (1)
-
-
-
-
metamorphic rocks
-
marbles (1)
-
-
metamorphism (1)
-
North America (1)
-
paleoecology (7)
-
paleogeography (9)
-
paleontology (1)
-
Paleozoic
-
Ellis Bay Formation (1)
-
Merrimack Group (1)
-
Ordovician
-
Upper Ordovician
-
Ashgillian (5)
-
Hirnantian (9)
-
Katian (3)
-
Sandbian (1)
-
Wufeng Formation (1)
-
-
-
Silurian
-
Lower Silurian
-
Brassfield Formation (1)
-
Llandovery
-
Aeronian (7)
-
Rhuddanian (28)
-
Telychian (3)
-
-
Wenlock
-
Homerian (1)
-
Sheinwoodian (3)
-
-
-
Upper Silurian
-
Ludlow
-
Gorstian (1)
-
Ludfordian (1)
-
-
Pridoli (1)
-
-
-
-
palynomorphs
-
Chitinozoa (2)
-
-
paragenesis (1)
-
petroleum
-
natural gas
-
shale gas (1)
-
-
-
Pterobranchia (1)
-
sea-level changes (4)
-
sedimentary rocks
-
carbonate rocks
-
limestone
-
micrite (1)
-
-
-
clastic rocks
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black shale (3)
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shale (2)
-
-
-
sedimentary structures
-
planar bedding structures
-
hummocky cross-stratification (1)
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-
-
sedimentation (1)
-
South America
-
Andes
-
Eastern Cordillera (1)
-
-
Argentina (1)
-
Precordillera (1)
-
-
stratigraphy (1)
-
tectonics (2)
-
United States
-
Illinois (1)
-
Iowa (1)
-
Kentucky
-
Bath County Kentucky (1)
-
-
Midcontinent (1)
-
Missouri (1)
-
Oklahoma (1)
-
-
-
sedimentary rocks
-
sedimentary rocks
-
carbonate rocks
-
limestone
-
micrite (1)
-
-
-
clastic rocks
-
black shale (3)
-
shale (2)
-
-
-
tempestite (1)
-
-
sedimentary structures
-
borings (1)
-
sedimentary structures
-
planar bedding structures
-
hummocky cross-stratification (1)
-
-
-
-
sediments
-
tempestite (1)
-
GeoRef Categories
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1-20 OF 28 RESULTS FOR
Rhuddanian
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Journal Article
Eustatic and local tectonic impact on the Late Ordovician – early Silurian facies evolution on the SW margin of peri-Baltica (the southern Holy Cross Mountains, Poland)
Journal: Geological Magazine
Publisher: Cambridge University Press
Published: 22 March 2021
Geological Magazine (2021) 158 (8): 1472–1486.
Journal Article
Plectatrypinae and other ribbed atrypides succeeding the end Ordovician extinction event, Central Oslo Region, Norway
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 January 2021
Journal of Paleontology (2021) 95 (1): 75–105.
Journal Article
Oceanic environment changes caused the Late Ordovician extinction: evidence from geochemical and Nd isotopic composition in the Yangtze area, South China
Journal: Geological Magazine
Publisher: Cambridge University Press
Published: 14 November 2019
Geological Magazine (2020) 157 (4): 651–665.
Journal Article
High-Grade Contact Metamorphism in the Kochumdek River Valley (Podkamennaya Tunguska Basin, East Siberia): Evidence for Magma Flow
E.V. Sokol, O.P. Polyansky, A.N. Semenov, V.V. Reverdatto, S.N. Kokh, A.S. Devyatiyarova, V.Yu. Kolobov, P.V. Khvorov, A.V. Babichev
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 April 2019
Russ. Geol. Geophys. (2019) 60 (4): 386–399.
Journal Article
Organic geochemical characteristics, mineralogy, petrophysical properties, and shale gas prospects of the Wufeng–Longmaxi shales in Sanquan Town of the Nanchuan District, Chongqing
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 November 2018
AAPG Bulletin (2018) 102 (11): 2239–2265.
Journal Article
A graptolite-rich Ordovician–Silurian boundary section in the south-central Pyrenees, Spain: stratigraphical and palaeobiogeographical significance
Journal: Geological Magazine
Publisher: Cambridge University Press
Published: 29 June 2018
Geological Magazine (2019) 156 (6): 1069–1091.
Journal Article
ENDOBIOTIC RUGOSE CORAL SYMBIONTS IN SILURIAN TABULATE CORALS FROM ESTONIA (BALTICA)
Journal: PALAIOS
Publisher: SEPM Society for Sedimentary Geology
Published: 01 March 2017
PALAIOS (2017) 32 (3): 158–165.
Journal Article
Correlation of chronostratigraphic and biostratigraphic units (example of the Silurian System)
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 April 2015
Russ. Geol. Geophys. (2015) 56 (4): 631–651.
Journal Article
Echinoderms from the lower Silurian Brassfield Formation of east-central Kentucky
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 March 2015
Journal of Paleontology (2015) 89 (2): 245–256.
Journal Article
SYMBIOTIC WORM ENDOBIONTS IN A STROMATOPOROID FROM THE RHUDDANIAN (EARLY SILURIAN) OF HIIUMAA, ESTONIA
Journal: PALAIOS
Publisher: SEPM Society for Sedimentary Geology
Published: 01 December 2013
PALAIOS (2013) 28 (12): 863–866.
Journal Article
A New Survivor Species of Dicoelosia (Brachiopoda) from Rhuddanian (Silurian) Shallower-Water Biofacies in South China
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 March 2013
Journal of Paleontology (2013) 87 (2): 232–242.
Journal Article
The Rhuddanian/Aeronian transition in the Rheidol Gorge, mid Wales
Publisher: Geological Society of London
Published: 01 November 2011
Proceedings of the Yorkshire Geological Society (2011) 58 (4): 261–266.
Journal Article
Phylogeny and Adaptive Radiation of the Neograptina (Graptoloida) During the Hirnantian Mass Extinction and Silurian Recovery
Publisher: Geological Society of London
Published: 01 November 2011
Proceedings of the Yorkshire Geological Society (2011) 58 (4): 281–309.
Journal Article
The systematic relationship of the monograptid species acinaces Törnquist, 1899 and rheidolensis Jones, 1909
Publisher: Geological Society of London
Published: 01 November 2011
Proceedings of the Yorkshire Geological Society (2011) 58 (4): 351–356.
Journal Article
Faunal specificity, endemism and paleobiogeography: the post-glacial (Hirnantian-early Rhuddanian) graptolite fauna of the North-African border of Gondwana: a case study
Publisher: Société Géologique de France
Published: 01 July 2009
Bulletin de la Société Géologique de France (2009) 180 (4): 353–367.
Journal Article
Chitinozoans and the age of the Soom Shale, an Ordovician black shale Lagerstätte, South Africa
THIJS R. A. VANDENBROUCKE, SARAH E. GABBOTT, FLORENTIN PARIS, RICHARD J. ALDRIDGE, JOHANNES N. THERON
Journal: Journal of Micropalaeontology
Publisher: Geological Society of London
Published: 01 May 2009
Journal of Micropalaeontology (2009) 28 (1): 53–66.
Journal Article
Lowermost Silurian Graptolites of Montagne Noire, France
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 September 2008
Journal of Paleontology (2008) 82 (5): 938–956.
Journal Article
Geographic variation in turnover and recovery from the Late Ordovician mass extinction
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 August 2007
Paleobiology (2007) 33 (3): 435–454.
Journal Article
Tempestite frequency curves: a key to Late Ordovician and Early Silurian subsidence, sea-level change, and orbital forcing in the Anticosti foreland basin, Quebec, Canada
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 03 May 2007
Canadian Journal of Earth Sciences (2007) 44 (3): 413–431.
Journal Article
Identification of early Llandovery (Silurian) anoxic palaeo-depressions at the western margin of the Murzuq Basin (southwest Libya), based on gamma-ray spectrometry in surface exposures
Journal: GeoArabia
Publisher: Gulf Petrolink
Published: 01 July 2006
GeoArabia (2006) 11 (3): 101–118.