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NARROW
GeoRef Subject
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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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Algeria
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Mouydir (1)
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Atlas Mountains
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Moroccan Atlas Mountains
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Anti-Atlas (1)
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Morocco
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Moroccan Atlas Mountains
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Anti-Atlas (1)
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Asia
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Far East
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Thailand (1)
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-
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Australasia
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Australia
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Victoria Australia (1)
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Canada
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Eastern Canada
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Ontario (1)
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Nunavut
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Ellesmere Island (1)
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Queen Elizabeth Islands
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Ellesmere Island (1)
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Western Canada
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Alberta (1)
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Northwest Territories (1)
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Commonwealth of Independent States (1)
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Europe
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Central Europe
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Germany
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Hesse Germany
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Bundenbach (1)
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Rhineland-Palatinate Germany (1)
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Variscides (1)
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Western Europe
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Ireland (1)
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United Kingdom
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Great Britain
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England
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Cornwall England (1)
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Mexico
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Tamaulipas Mexico (1)
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North America
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Appalachian Basin (1)
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Appalachians
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Piedmont (1)
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South America
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Argentina
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Chubut Argentina (1)
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United States
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Arkansas (1)
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Illinois (1)
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Indiana (1)
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Missouri (1)
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USSR (1)
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commodities
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petroleum (1)
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fossils
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burrows (1)
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Chordata
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Vertebrata
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Pisces
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Chondrichthyes
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Elasmobranchii (1)
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-
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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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Strophomenida (1)
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Cnidaria (1)
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Mollusca
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Cephalopoda
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Ammonoidea
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Goniatitida
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Goniatitidae
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Goniatites (18)
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Porifera
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Stromatoporoidea (1)
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-
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microfossils
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Conodonta (1)
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tracks (1)
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geologic age
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Paleozoic
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Carboniferous
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Lower Carboniferous
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Dinantian (2)
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Mississippian
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Middle Mississippian
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Visean (2)
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Upper Mississippian
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Meramecian
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Sainte Genevieve Limestone (1)
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Namurian (2)
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Pennsylvanian
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Middle Pennsylvanian
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Atokan
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Atoka Formation (1)
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Upper Pennsylvanian (1)
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Upper Carboniferous
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Westphalian (1)
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Devonian
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Hunsruck Shale (1)
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Lower Devonian (2)
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Middle Devonian
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Detroit River Group (1)
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Exshaw Formation (1)
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Precambrian (1)
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metamorphic rocks
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metamorphic rocks
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slates (1)
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minerals
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silicates
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sheet silicates
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clay minerals
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kaolinite (1)
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Primary terms
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Africa
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North Africa
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Algeria
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Mouydir (1)
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Atlas Mountains
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Moroccan Atlas Mountains
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Anti-Atlas (1)
-
-
-
Morocco
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
-
-
-
-
Asia
-
Far East
-
Thailand (1)
-
-
-
Australasia
-
Australia
-
Victoria Australia (1)
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-
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biogeography (2)
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Canada
-
Eastern Canada
-
Ontario (1)
-
-
Nunavut
-
Ellesmere Island (1)
-
-
Queen Elizabeth Islands
-
Ellesmere Island (1)
-
-
Western Canada
-
Alberta (1)
-
Northwest Territories (1)
-
-
-
Chordata
-
Vertebrata
-
Pisces
-
Chondrichthyes
-
Elasmobranchii (1)
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-
-
-
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crust (1)
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Europe
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Central Europe
-
Germany
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Hesse Germany
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Bundenbach (1)
-
-
Rhineland-Palatinate Germany (1)
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-
-
Variscides (1)
-
Western Europe
-
Ireland (1)
-
United Kingdom
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Great Britain
-
England
-
Cornwall England (1)
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-
-
-
-
-
ichnofossils (1)
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intrusions (1)
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Invertebrata
-
Arthropoda
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Trilobitomorpha
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Trilobita (1)
-
-
-
Brachiopoda
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Articulata
-
Strophomenida (1)
-
-
-
Cnidaria (1)
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Mollusca
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Cephalopoda
-
Ammonoidea
-
Goniatitida
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Goniatitidae
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Goniatites (18)
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-
-
-
-
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Porifera
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Stromatoporoidea (1)
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-
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metamorphic rocks
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slates (1)
-
-
metasomatism (1)
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Mexico
-
Tamaulipas Mexico (1)
-
-
North America
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Appalachian Basin (1)
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Appalachians
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Piedmont (1)
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-
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orogeny (1)
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paleoecology (2)
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paleogeography (2)
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paleontology (10)
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Paleozoic
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Carboniferous
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Lower Carboniferous
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Dinantian (2)
-
-
Mississippian
-
Middle Mississippian
-
Visean (2)
-
-
Upper Mississippian
-
Meramecian
-
Sainte Genevieve Limestone (1)
-
-
-
-
Namurian (2)
-
Pennsylvanian
-
Middle Pennsylvanian
-
Atokan
-
Atoka Formation (1)
-
-
-
Upper Pennsylvanian (1)
-
-
Upper Carboniferous
-
Westphalian (1)
-
-
-
Devonian
-
Hunsruck Shale (1)
-
Lower Devonian (2)
-
Middle Devonian
-
Detroit River Group (1)
-
Onondaga Limestone (1)
-
-
-
Exshaw Formation (1)
-
-
petroleum (1)
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Precambrian (1)
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sedimentary rocks
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clastic rocks
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shale (1)
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tonstein (1)
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-
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sedimentary structures
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planar bedding structures
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laminations (1)
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-
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South America
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Argentina
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Chubut Argentina (1)
-
-
-
stratigraphy (2)
-
United States
-
Arkansas (1)
-
Illinois (1)
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Indiana (1)
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Kansas (1)
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Kentucky (1)
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Midcontinent (1)
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Midwest (1)
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Missouri (1)
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Nevada (1)
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New York (1)
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Oklahoma (1)
-
Texas (1)
-
-
USSR (1)
-
-
sedimentary rocks
-
sedimentary rocks
-
clastic rocks
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shale (1)
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tonstein (1)
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-
-
-
sedimentary structures
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burrows (1)
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sedimentary structures
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planar bedding structures
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laminations (1)
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-
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tracks (1)
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Goniatites
THE LAZARUS AMMONOID FAMILY GONIATITIDAE, THE TETRANGULARLY COILED ENTOGONITIDAE, AND MISSISSIPPIAN BIOGEOGRAPHY
NAMURIAN FOSSILS (BRACHIOPODS, GONIATITES) FROM SATUN PROVINCE, SOUTHERN THAILAND
Ichnological evidence for the environmental setting of the Fossil-Lagerstätten in the Devonian Hunsrück Slate, Germany
The Detroit River Group is Middle Devonian: Discussion on "Early Devonian age of the Detroit River Group, inferred from Arctic stromatoporoids"
Predation on the Pennsylvanian ammonoid Gonioloboceras and its implications for allochthonous vs. autochthonous accumulations of Goniatites and other ammonoids
The Pennsylvanian Fire Clay tonstein of the Appalachian basin—Its distribution, biostratigraphy, and mineralogy
The Middle Pennsylvanian Fire Clay tonstein, mostly kaolinite and minor accessory minerals, is an altered and lithified volcanic ash preserved as a thin, isochronous layer associated with the Fire Clay coal bed. Seven samples of the tonstein, taken along a 300-km traverse of the central Appalachian basin, contain cogenetic phenocrysts and trapped silicate-melt inclusions of a rhyolitic magma. The phenocrysts include beta-form quartz, apatite, zircon, sanidine, pyroxene, amphibole, monazite, garnet, biotite, and various sulfides. An inherited component of the zircons (determined from U-Pb isotope analyses) provides evidence that the source of the Fire Clay ash was Middle Proterozoic (Grenvillian) continental crust inboard of the active North American margin. 40 Ar/ 39 Ar plateau ages of seven sanidine samples from the tonstein have a mean age of 310.9 ± 0.8 Ma, which suggests that it is the product of a single, large-volume, high-silica, rhyolitic eruption possibly associated with one of the Hercynian granitic plutons in the Piedmont. Biostratigraphic analyses correlate the Fire Clay coal bed with a position just below the top of the Trace Creek Member of the Atoka Formation in the North American Midcontinent and near the Westphalian B-C boundary in western Europe.