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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Central Africa
-
Central African Republic (1)
-
Congo Democratic Republic (2)
-
-
North Africa
-
Egypt (3)
-
Libya (1)
-
-
Southern Africa
-
Kaapvaal Craton (2)
-
Orange River (1)
-
South Africa
-
Free State South Africa
-
Vredefort Dome (10)
-
-
Gauteng South Africa
-
Johannesburg South Africa (1)
-
-
Vaal River (1)
-
Witwatersrand (1)
-
-
-
West Africa
-
Cameroon (1)
-
Ghana
-
Bosumtwi Crater (1)
-
-
-
-
Arctic region
-
Greenland
-
Greenland ice sheet (1)
-
-
-
Asia
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Far East
-
Laos (1)
-
Thailand (1)
-
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Indian Peninsula
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India
-
Jharkhand India
-
Singhbhum India (1)
-
-
Orissa India (1)
-
-
-
Southeast Asia (1)
-
-
Atlantic Ocean
-
North Atlantic
-
Gulf of Mexico (2)
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Northwest Atlantic (1)
-
-
-
Australasia
-
Australia
-
Western Australia
-
Carnarvon Basin (1)
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Hamersley Basin (1)
-
-
-
-
Canada
-
Carswell Structure (1)
-
Eastern Canada
-
Ontario
-
Sudbury igneous complex (3)
-
Sudbury Structure (2)
-
-
-
Nunavut
-
Devon Island (2)
-
Haughton impact structure (2)
-
-
Queen Elizabeth Islands
-
Devon Island (2)
-
-
-
Central America
-
Nicaragua (1)
-
-
Chesapeake Bay impact structure (2)
-
Chicxulub Crater (2)
-
Europe
-
Alps
-
Central Alps
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Lepontine Alps (1)
-
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Western Alps (1)
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Central Europe
-
Erzgebirge (1)
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Germany
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Bavaria Germany
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Ries Crater (2)
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Steinheim Basin (1)
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Switzerland (1)
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Fennoscandian Shield (1)
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Southern Europe
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Italy
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Ivrea-Verbano Zone (1)
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Piemonte Italy (1)
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-
-
Western Europe
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France
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Central Massif (1)
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Charente France (1)
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Rochechouart Crater (1)
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-
Scandinavia
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Finland (2)
-
Sweden
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Dalarna Sweden
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Siljan Ring (1)
-
-
Jamtland Sweden
-
Lockne Crater (1)
-
-
-
-
United Kingdom
-
Great Britain
-
Scotland
-
Hebrides
-
Inner Hebrides
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Isle of Skye (1)
-
-
Outer Hebrides (1)
-
-
Highland region Scotland
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Inverness-shire Scotland
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Isle of Skye (1)
-
-
-
-
-
-
-
-
International Ocean Discovery Program (1)
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Mexico
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Yucatan Mexico (1)
-
-
North America
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Canadian Shield
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Grenville Province (1)
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Superior Province (1)
-
-
Rocky Mountains
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U. S. Rocky Mountains
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Sangre de Cristo Mountains (2)
-
-
-
-
South America
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Brazil (1)
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Parana Basin (1)
-
-
United States
-
Arizona
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Coconino County Arizona
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Meteor Crater (1)
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-
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Atlantic Coastal Plain (1)
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Chesapeake Bay (1)
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Georgia
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Warren County Georgia (1)
-
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Nevada (1)
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New Mexico
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Santa Fe County New Mexico
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Santa Fe New Mexico (1)
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-
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U. S. Rocky Mountains
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Sangre de Cristo Mountains (2)
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Virginia
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Northampton County Virginia (1)
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Wisconsin
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Pierce County Wisconsin (1)
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Western Desert (1)
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commodities
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aggregate (1)
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glass materials (4)
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metal ores
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gold ores (1)
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polymetallic ores (1)
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silver ores (1)
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-
mineral deposits, genesis (1)
-
-
elements, isotopes
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carbon
-
C-13/C-12 (1)
-
-
isotope ratios (3)
-
isotopes
-
radioactive isotopes
-
Be-10 (1)
-
-
stable isotopes
-
C-13/C-12 (1)
-
N-15/N-14 (1)
-
Pb-207/Pb-206 (2)
-
Si-29 (2)
-
-
-
metals
-
actinides
-
thorium (1)
-
uranium (3)
-
-
alkaline earth metals
-
beryllium
-
Be-10 (1)
-
-
calcium (1)
-
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arsenic (1)
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hafnium (1)
-
iron (1)
-
lead
-
Pb-207/Pb-206 (2)
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-
nickel (1)
-
platinum group (2)
-
rare earths
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cerium (1)
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ytterbium (1)
-
yttrium (2)
-
-
zirconium (3)
-
-
nitrogen
-
N-15/N-14 (1)
-
-
phosphorus (1)
-
selenium (1)
-
silicon
-
Si-29 (2)
-
-
-
fossils
-
Chordata
-
Vertebrata
-
Tetrapoda
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Mammalia
-
Theria
-
Eutheria
-
Primates
-
Hominidae
-
Homo
-
Homo erectus (1)
-
-
-
-
-
-
-
-
-
-
fossil man (1)
-
-
geochronology methods
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(U-Th)/He (1)
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Ar/Ar (2)
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radiation damage (4)
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Re/Os (1)
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U/Pb (14)
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U/Th/Pb (3)
-
-
geologic age
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Cenozoic
-
Quaternary
-
Pleistocene
-
Bishop Tuff (1)
-
-
-
Tertiary
-
Paleogene
-
Eocene
-
upper Eocene
-
Dry Branch Formation (1)
-
Twiggs Clay (1)
-
-
-
Paleocene
-
lower Paleocene
-
K-T boundary (1)
-
-
-
-
-
-
Mesozoic
-
Cretaceous
-
Upper Cretaceous
-
K-T boundary (1)
-
-
-
Jurassic
-
Lower Jurassic (1)
-
-
Triassic
-
Lower Triassic
-
Permian-Triassic boundary (1)
-
-
Upper Triassic (1)
-
-
-
Paleozoic
-
Devonian
-
Upper Devonian (3)
-
-
Ordovician
-
Lower Ordovician (1)
-
-
Permian
-
Passa Dois Group (1)
-
Upper Permian
-
Permian-Triassic boundary (1)
-
-
-
-
Phanerozoic (4)
-
Precambrian
-
Archean
-
Neoarchean (2)
-
-
Hadean (2)
-
Hamersley Group (1)
-
Transvaal Supergroup (1)
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (4)
-
Neoproterozoic
-
Ediacaran (1)
-
Moine Supergroup (1)
-
Torridonian (2)
-
-
Paleoproterozoic
-
Whitewater Group (1)
-
-
-
-
-
-
igneous rocks
-
igneous rocks
-
granophyre (3)
-
plutonic rocks
-
anorthosite (1)
-
granites (3)
-
granodiorites (1)
-
ultramafics
-
peridotites (1)
-
pyroxenite (1)
-
-
-
volcanic rocks
-
glasses (3)
-
-
-
-
metamorphic rocks
-
metamorphic rocks
-
cataclasites (1)
-
gneisses (3)
-
impactites
-
impact breccia
-
suevite (2)
-
-
-
metaigneous rocks
-
metabasalt (1)
-
-
metasedimentary rocks
-
metapelite (1)
-
-
mylonites
-
pseudotachylite (3)
-
-
phyllonites (1)
-
quartzites (1)
-
-
-
meteorites
-
meteorites
-
iron meteorites (1)
-
stony irons (1)
-
stony meteorites
-
achondrites
-
Martian meteorites
-
SNC Meteorites
-
shergottite
-
Zagami Meteorite (1)
-
-
-
-
-
chondrites
-
ordinary chondrites
-
L chondrites (2)
-
-
-
-
-
-
minerals
-
alloys
-
carbides (1)
-
nitrides (2)
-
phosphides (1)
-
silicides (1)
-
-
arsenates (1)
-
borates (1)
-
carbonates
-
calcite (1)
-
-
chromates (1)
-
halides (1)
-
minerals (1)
-
native elements
-
diamond (2)
-
-
oxides
-
armalcolite (1)
-
baddeleyite (3)
-
ferropseudobrookite (1)
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ilmenite (1)
-
magnetite (1)
-
niobates
-
fergusonite (2)
-
-
periclase (1)
-
rutile (5)
-
titanium oxides (1)
-
wustite (1)
-
-
phosphates
-
apatite (4)
-
merrillite (1)
-
monazite (6)
-
whitlockite (1)
-
xenotime (4)
-
-
selenates (1)
-
silicates
-
aluminosilicates
-
maskelynite (1)
-
-
chain silicates
-
pyroxene group
-
clinopyroxene
-
pigeonite (1)
-
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
adularia (1)
-
-
-
silica minerals
-
coesite (5)
-
cristobalite (1)
-
lechatelierite (1)
-
quartz (8)
-
stishovite (2)
-
-
zeolite group (1)
-
-
orthosilicates
-
nesosilicates
-
garnet group (3)
-
olivine group
-
forsterite (1)
-
olivine (1)
-
ringwoodite (3)
-
wadsleyite (1)
-
-
titanite group
-
titanite (1)
-
-
zircon group
-
coffinite (1)
-
thorite (1)
-
zircon (51)
-
-
-
-
sheet silicates
-
chlorite group
-
chlorite (1)
-
clinochlore (1)
-
-
-
-
sulfates
-
anhydrite (1)
-
-
sulfides
-
pyrrhotite (1)
-
-
tungstates
-
scheelite (5)
-
-
vanadates (2)
-
-
Primary terms
-
absolute age (16)
-
Africa
-
Central Africa
-
Central African Republic (1)
-
Congo Democratic Republic (2)
-
-
North Africa
-
Egypt (3)
-
Libya (1)
-
-
Southern Africa
-
Kaapvaal Craton (2)
-
Orange River (1)
-
South Africa
-
Free State South Africa
-
Vredefort Dome (10)
-
-
Gauteng South Africa
-
Johannesburg South Africa (1)
-
-
Vaal River (1)
-
Witwatersrand (1)
-
-
-
West Africa
-
Cameroon (1)
-
Ghana
-
Bosumtwi Crater (1)
-
-
-
-
Arctic region
-
Greenland
-
Greenland ice sheet (1)
-
-
-
Asia
-
Far East
-
Laos (1)
-
Thailand (1)
-
-
Indian Peninsula
-
India
-
Jharkhand India
-
Singhbhum India (1)
-
-
Orissa India (1)
-
-
-
Southeast Asia (1)
-
-
asteroids (3)
-
Atlantic Ocean
-
North Atlantic
-
Gulf of Mexico (2)
-
Northwest Atlantic (1)
-
-
-
Australasia
-
Australia
-
Western Australia
-
Carnarvon Basin (1)
-
Hamersley Basin (1)
-
-
-
-
biography (1)
-
Canada
-
Carswell Structure (1)
-
Eastern Canada
-
Ontario
-
Sudbury igneous complex (3)
-
Sudbury Structure (2)
-
-
-
Nunavut
-
Devon Island (2)
-
Haughton impact structure (2)
-
-
Queen Elizabeth Islands
-
Devon Island (2)
-
-
-
carbon
-
C-13/C-12 (1)
-
-
Cenozoic
-
Quaternary
-
Pleistocene
-
Bishop Tuff (1)
-
-
-
Tertiary
-
Paleogene
-
Eocene
-
upper Eocene
-
Dry Branch Formation (1)
-
Twiggs Clay (1)
-
-
-
Paleocene
-
lower Paleocene
-
K-T boundary (1)
-
-
-
-
-
-
Central America
-
Nicaragua (1)
-
-
chemical analysis (1)
-
Chordata
-
Vertebrata
-
Tetrapoda
-
Mammalia
-
Theria
-
Eutheria
-
Primates
-
Hominidae
-
Homo
-
Homo erectus (1)
-
-
-
-
-
-
-
-
-
-
continental drift (1)
-
core (1)
-
crust (1)
-
crystal chemistry (4)
-
crystal growth (8)
-
crystal structure (12)
-
crystallography (2)
-
data processing (2)
-
Deep Sea Drilling Project
-
IPOD
-
Leg 95
-
DSDP Site 612 (1)
-
-
-
-
deformation (9)
-
Earth (1)
-
Europe
-
Alps
-
Central Alps
-
Lepontine Alps (1)
-
-
Western Alps (1)
-
-
Central Europe
-
Erzgebirge (1)
-
Germany
-
Bavaria Germany
-
Ries Crater (2)
-
-
Steinheim Basin (1)
-
-
Switzerland (1)
-
-
Fennoscandian Shield (1)
-
Southern Europe
-
Italy
-
Ivrea-Verbano Zone (1)
-
Piemonte Italy (1)
-
-
-
Western Europe
-
France
-
Central Massif (1)
-
Charente France (1)
-
Rochechouart Crater (1)
-
-
Scandinavia
-
Finland (2)
-
Sweden
-
Dalarna Sweden
-
Siljan Ring (1)
-
-
Jamtland Sweden
-
Lockne Crater (1)
-
-
-
-
United Kingdom
-
Great Britain
-
Scotland
-
Hebrides
-
Inner Hebrides
-
Isle of Skye (1)
-
-
Outer Hebrides (1)
-
-
Highland region Scotland
-
Inverness-shire Scotland
-
Isle of Skye (1)
-
-
-
-
-
-
-
-
explosions (1)
-
faults (3)
-
fossil man (1)
-
fractures (3)
-
geochemistry (3)
-
geochronology (2)
-
geomorphology (3)
-
ground water (1)
-
igneous rocks
-
granophyre (3)
-
plutonic rocks
-
anorthosite (1)
-
granites (3)
-
granodiorites (1)
-
ultramafics
-
peridotites (1)
-
pyroxenite (1)
-
-
-
volcanic rocks
-
glasses (3)
-
-
-
inclusions (6)
-
intrusions (2)
-
isotopes
-
radioactive isotopes
-
Be-10 (1)
-
-
stable isotopes
-
C-13/C-12 (1)
-
N-15/N-14 (1)
-
Pb-207/Pb-206 (2)
-
Si-29 (2)
-
-
-
mantle (3)
-
Mesozoic
-
Cretaceous
-
Upper Cretaceous
-
K-T boundary (1)
-
-
-
Jurassic
-
Lower Jurassic (1)
-
-
Triassic
-
Lower Triassic
-
Permian-Triassic boundary (1)
-
-
Upper Triassic (1)
-
-
-
metal ores
-
gold ores (1)
-
polymetallic ores (1)
-
silver ores (1)
-
-
metals
-
actinides
-
thorium (1)
-
uranium (3)
-
-
alkaline earth metals
-
beryllium
-
Be-10 (1)
-
-
calcium (1)
-
-
arsenic (1)
-
hafnium (1)
-
iron (1)
-
lead
-
Pb-207/Pb-206 (2)
-
-
nickel (1)
-
platinum group (2)
-
rare earths
-
cerium (1)
-
ytterbium (1)
-
yttrium (2)
-
-
zirconium (3)
-
-
metamorphic rocks
-
cataclasites (1)
-
gneisses (3)
-
impactites
-
impact breccia
-
suevite (2)
-
-
-
metaigneous rocks
-
metabasalt (1)
-
-
metasedimentary rocks
-
metapelite (1)
-
-
mylonites
-
pseudotachylite (3)
-
-
phyllonites (1)
-
quartzites (1)
-
-
metamorphism (47)
-
metasomatism (2)
-
meteorites
-
iron meteorites (1)
-
stony irons (1)
-
stony meteorites
-
achondrites
-
Martian meteorites
-
SNC Meteorites
-
shergottite
-
Zagami Meteorite (1)
-
-
-
-
-
chondrites
-
ordinary chondrites
-
L chondrites (2)
-
-
-
-
-
Mexico
-
Yucatan Mexico (1)
-
-
mineral deposits, genesis (1)
-
minerals (1)
-
Moon (2)
-
nitrogen
-
N-15/N-14 (1)
-
-
North America
-
Canadian Shield
-
Grenville Province (1)
-
Superior Province (1)
-
-
Rocky Mountains
-
U. S. Rocky Mountains
-
Sangre de Cristo Mountains (2)
-
-
-
-
Ocean Drilling Program
-
Leg 150
-
ODP Site 903 (1)
-
ODP Site 904 (1)
-
-
Leg 174A
-
ODP Site 1073 (1)
-
-
-
ocean floors (1)
-
paleogeography (2)
-
Paleozoic
-
Devonian
-
Upper Devonian (3)
-
-
Ordovician
-
Lower Ordovician (1)
-
-
Permian
-
Passa Dois Group (1)
-
Upper Permian
-
Permian-Triassic boundary (1)
-
-
-
-
Phanerozoic (4)
-
phase equilibria (4)
-
phosphorus (1)
-
plate tectonics (1)
-
Precambrian
-
Archean
-
Neoarchean (2)
-
-
Hadean (2)
-
Hamersley Group (1)
-
Transvaal Supergroup (1)
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (4)
-
Neoproterozoic
-
Ediacaran (1)
-
Moine Supergroup (1)
-
Torridonian (2)
-
-
Paleoproterozoic
-
Whitewater Group (1)
-
-
-
-
-
remote sensing (1)
-
sedimentary rocks
-
chemically precipitated rocks
-
evaporites (1)
-
-
clastic rocks
-
sandstone (3)
-
tillite (1)
-
-
coal (1)
-
-
sedimentary structures
-
seismites (1)
-
soft sediment deformation
-
clastic dikes (1)
-
-
-
sedimentation (1)
-
sediments
-
clastic sediments
-
alluvium (1)
-
sand (4)
-
-
marine sediments (1)
-
-
selenium (1)
-
silicon
-
Si-29 (2)
-
-
soils
-
laterites (1)
-
-
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1-20 OF 172 RESULTS FOR
reidite
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Journal Article
Microstructural changes and Pb mobility during the zircon to reidite transformation: Implications for planetary impact chronology
Ian Szumila, Dustin Trail, Timmons Erickson, Justin I. Simon, Matthew M. Wielicki, Tom Lapen, Miki Nakajima, Marc Fries, Elizabeth A. Bell
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 August 2023
American Mineralogist (2023) 108 (8): 1516–1529.
... ZrSiO 4 polymorph reidite, with some domains up to 300 μm across. The possibility of U-Pb system disturbance was evaluated via laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) and secondary ion mass spectrometry (SIMS). The isotopic data reveal that disturbance of the U-Pb...
Includes: Supplemental Content
Journal Article
Dendritic reidite from the Chesapeake Bay impact horizon, Ocean Drilling Program Site 1073 (offshore northeastern USA): A fingerprint of distal ejecta?
Aaron J. Cavosie, Marc B. Biren, Kip V. Hodges, Jo-Anne Wartho, J. Wright Horton, Jr., Christian Koeberl
Journal: Geology
Publisher: Geological Society of America
Published: 07 October 2020
Geology (2021) 49 (2): 201–205.
...Aaron J. Cavosie; Marc B. Biren; Kip V. Hodges; Jo-Anne Wartho; J. Wright Horton, Jr.; Christian Koeberl Abstract High-pressure minerals provide records of processes not normally preserved in Earth’s crust. Reidite, a quenchable polymorph of zircon, forms at pressures >20 GPa during shock...
Journal Article
New insights into the zircon-reidite phase transition
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 June 2019
American Mineralogist (2019) 104 (6): 830–837.
...Claudia Stangarone; Ross J. Angel; Mauro Prencipe; Boriana Mihailova; Matteo Alvaro Abstract The structure, the elastic properties, and the Raman frequencies of the zircon and reidite polymorphs of ZrSiO 4 were calculated as a function of hydrostatic pressure up to 30 GPa using HF/DFT ab initio...
Journal Article
The importance of cation–cation repulsion in the zircon–reidite phase transition and radiation-damaged zircon
Makoto Tokuda, Akira Yoshiasa, Hiroshi Kojitani, Saki Hashimoto, Seiichiro Uehara, Tsutomu Mashimo, Tsubasa Tobase, Masaki Akaogi
Journal: Mineralogical Magazine
Published: 22 May 2019
Mineralogical Magazine (2019) 83 (4): 561–567.
...Makoto Tokuda; Akira Yoshiasa; Hiroshi Kojitani; Saki Hashimoto; Seiichiro Uehara; Tsutomu Mashimo; Tsubasa Tobase; Masaki Akaogi Abstract Single crystals of synthetic reidite and natural radiation-damaged zircon from Okueyama, Japan were investigated using X-ray diffraction. The pressure-induced...
Journal Article
Microstructural dynamics of central uplifts: Reidite offset by zircon twins at the Woodleigh impact structure, Australia: COMMENT
Journal: Geology
Publisher: Geological Society of America
Published: 01 May 2019
Geology (2019) 47 (5): e465.
...Matthew S. Huber; Elizaveta Kovaleva Forum Comment httpsdoi.org/10.1130/G46155C.1 Microstructural dynamics of central uplifts: Reidite offset by zircon twins at the Woodleigh impact structure, Australia Matthew S. Huber and Elizaveta Kovaleva Department of Geology, University of the Free State...
Journal Article
Microstructural dynamics of central uplifts: Reidite offset by zircon twins at the Woodleigh impact structure, Australia: REPLY
Journal: Geology
Publisher: Geological Society of America
Published: 01 May 2019
Geology (2019) 47 (5): e466.
...Morgan A. Cox; Aaron J. Cavosie; Phil A. Bland; Katarina Miljković; Michael T.D. Wingate Forum Reply httpsdoi.org/10.1130/G46213Y.1 Microstructural dynamics of central uplifts: Reidite offset by zircon twins at the Woodleigh impact structure, Australia Morgan A. Cox1, Aaron J. Cavosie1, Phil...
Journal Article
Microstructural dynamics of central uplifts: Reidite offset by zircon twins at the Woodleigh impact structure, Australia
Journal: Geology
Publisher: Geological Society of America
Published: 27 September 2018
Geology (2018) 46 (11): 983–986.
... in zircon from a central uplift. We report both shock twins and reidite, the high-pressure ZrSiO 4 polymorph, in zircon from shocked granitic gneiss drilled from the center of the >60-km-diameter Woodleigh impact structure in Western Australia. The key observation is that in zircon grains that contain...
Journal Article
New clues from Earth’s most elusive impact crater: Evidence of reidite in Australasian tektites from Thailand
Journal: Geology
Publisher: Geological Society of America
Published: 20 December 2017
Geology (2018) 46 (3): 203–206.
... of the source crater. The former presence of reidite, a high-pressure polymorph of zircon, was detected in granular zircon grains within Muong Nong–type tektites from Thailand. The zircon grains are surrounded by tektite glass and are composed of micrometer-sized neoblasts that contain inclusions of ZrO 2...
Journal Article
Transformations to granular zircon revealed: Twinning, reidite, and ZrO 2 in shocked zircon from Meteor Crater (Arizona, USA)
Journal: Geology
Publisher: Geological Society of America
Published: 01 September 2016
Geology (2016) 44 (9): 703–706.
... that each grain consists of multiple domains, some with boundaries disoriented by 65° around <110>, a known {112} shock-twin orientation. Other domains have {001} in alignment with {110} of neighboring domains, consistent with the former presence of the high-pressure ZrSiO 4 polymorph reidite...
Journal Article
Precambrian reidite discovered in shocked zircon from the Stac Fada impactite, Scotland
Journal: Geology
Publisher: Geological Society of America
Published: 01 October 2015
Geology (2015) 43 (10): 899–902.
... tectonics, erosion, and deposition of younger rocks that may destroy or cover the evidence. Here we report the first Precambrian occurrence of the rare mineral reidite (ZrSiO 4 ) within grains of shocked zircon in the ca. 1.18 Ga Stac Fada Member (Stoer Group), northwestern Scotland. The reidite, preserved...
Journal Article
Nanoscale records of ancient shock deformation: Reidite (ZrSiO 4 ) in sandstone at the Ordovician Rock Elm impact crater
Journal: Geology
Publisher: Geological Society of America
Published: 01 April 2015
Geology (2015) 43 (4): 315–318.
..., and above 20 GPa transforms to reidite, a high-pressure ZrSiO 4 polymorph diagnostic of impact. However, the utility of reidite has been limited by its occurrence; it has only been reported from three relatively young (<36 Ma) impact craters globally. Here we report a new occurrence of reidite...
Journal Article
In situ determination of the compressibility of synthetic pure zircon (ZrSiO 4 ) and the onset of the zircon-reidite phase transition
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 January 2004
American Mineralogist (2004) 89 (1): 197–203.
... volume V 0 = 260.89 ± 0.03 Å 3 , when (∂ K T 0 /∂ P ) T = K ′ T 0 is fixed at 4. This bulk modulus is over 12% lower than that suggested by earlier measurements using impure, natural zircon sample. In addition, we observed the start of the transformation of zircon to reidite (scheelite-structured ZrSiO...
Journal Article
The effect of radiation damage on local structure in the crystalline fraction of ZrSiO 4 : Investigating the 29 Si NMR response to pressure in zircon and reidite
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 November 2003
American Mineralogist (2003) 88 (11-12): 1663–1667.
...Ian Farnan; Etienne Balan; Chris J. Pickard; Francesco Mauri Abstract Periodic density functional theory (DFT) was used to calculate the structure of zircon (ZrSiO 4 ) and reidite (scheelite polymorph of ZrSiO 4 ) at pressures from 0-41 GPa. Subsequently, the 29Si nuclear magnetic resonance (NMR...
Journal Article
Reidite: An impact-produced high-pressure polymorph of zircon found in marine sediments
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 April 2002
American Mineralogist (2002) 87 (4): 562–565.
...Billy P. Glass; Shaobin Liu; Peter B. Leavens Abstract Reidite is a high-pressure polymorph of zircon with the scheelite structure. It has been found in an upper Eocene impact ejecta layer in marine sediments on the upper continental slope off New Jersey and on Barbados. Reidite occurs (epitaxially...
Image
EBSD maps and pole figures of shocked zircon-reidite material (grain C). ( ...
in Microstructural changes and Pb mobility during the zircon to reidite transformation: Implications for planetary impact chronology
> American Mineralogist
Published: 01 August 2023
Figure 5. EBSD maps and pole figures of shocked zircon-reidite material (grain C). ( a ) Inverse pole figure (z direction) exhibiting a reidite domain about 50 to 100 μm. ( b ) Unlike the other reidite domain (i.e., grain A from Fig. 4a ), this one has several small lamellae of zircon running
Image
Two-stage model of reidite formation. (A) Pre-impact zircon with randomly o...
in Dendritic reidite from the Chesapeake Bay impact horizon, Ocean Drilling Program Site 1073 (offshore northeastern USA): A fingerprint of distal ejecta?
> Geology
Published: 07 October 2020
Figure 4. Two-stage model of reidite formation. (A) Pre-impact zircon with randomly oriented dislocations. (B) Formation of lamellar reidite network by shearing at pressures >40 GPa during shock compression. Defect concentrations accumulate adjacent to reidite lamellae. (C) Detail of area
Image
Comparison of SiO 4 configurations between zircon (Kolesov, et al. , 200...
in The importance of cation–cation repulsion in the zircon–reidite phase transition and radiation-damaged zircon
> Mineralogical Magazine
Published: 22 May 2019
Fig. 2. Comparison of SiO 4 configurations between zircon (Kolesov, et al. , 2001 ) and reidite projected on (100) reidite ( a ) and (010) reidite ( b ). The grey and black tetrahedra correspond to the SiO 4 of zircon and reidite, respectively.
Image
Dendritic reidite (insets from Fig. 2A ). (A) Reidite dendrites growing ep...
in Dendritic reidite from the Chesapeake Bay impact horizon, Ocean Drilling Program Site 1073 (offshore northeastern USA): A fingerprint of distal ejecta?
> Geology
Published: 07 October 2020
Figure 3. Dendritic reidite (insets from Fig. 2A ). (A) Reidite dendrites growing epitaxially from discrete reidite lamellae. Arrow indicates “sawtooth” boundaries described in the text. (B) Dendritic reidite forming fan-like masses, unassociated with lamellae visible on the polished section.
Image
Images and crystallographic data of reidite-bearing zircon grain 9 (shown i...
in Nanoscale records of ancient shock deformation: Reidite (ZrSiO 4 ) in sandstone at the Ordovician Rock Elm impact crater
> Geology
Published: 01 April 2015
Figure 3. Images and crystallographic data of reidite-bearing zircon grain 9 (shown in Fig. 2B ), Rock Elm breccia sample 13RE07. A: Atomic number contrast image. White box shows area shown in B. B: Detail of A showing (i) lamellar reidite, (ii) nano-granular reidite in voids, and (iii) nano
Image
Features of reidite lamellae, shock twins, and “former reidite in granular ...
in Shock-deformed zircon from the Chicxulub impact crater and implications for cratering process
> Geology
Published: 05 April 2021
Figure 3. Features of reidite lamellae, shock twins, and “former reidite in granular neoblastic” (FRIGN) zircon. (A) Reidite- and microtwin-bearing zircon from granodiorite clast (715.9 m below seafloor [mbsf], grain 2). Z-h— zircon host; Z-t—zircon twins; R1, R2—reidite; BC—band contrast; IPF
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