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all geography including DSDP/ODP Sites and Legs
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Africa
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Afar (1)
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Central Africa
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Angola
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Cabinda Angola (1)
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Gabon
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Oklo (1)
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Lake Kivu (1)
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Congo Basin (1)
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Congo Craton (1)
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East Africa
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Ethiopia (3)
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Kenya
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East Turkana Basin (1)
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Malawi (1)
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East African Lakes
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East African Rift (4)
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South Africa
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-
gadolinium (1)
-
lanthanum (4)
-
neodymium
-
Nd-144/Nd-143 (6)
-
Sm-147/Nd-144 (3)
-
-
samarium
-
Sm-147/Nd-144 (3)
-
-
scandium (2)
-
ytterbium (4)
-
yttrium (4)
-
-
rhenium
-
Re-187/Os-188 (1)
-
-
silver (1)
-
tantalum (1)
-
technetium
-
Tc-99 (1)
-
-
tin (1)
-
titanium (2)
-
vanadium (4)
-
zinc (4)
-
zirconium (3)
-
-
nitrogen
-
organic nitrogen (1)
-
-
noble gases
-
helium
-
He-3 (1)
-
He-4/He-3 (1)
-
-
xenon (1)
-
-
oxygen
-
dissolved oxygen (3)
-
O-18 (1)
-
O-18/O-16 (37)
-
-
phosphorus (4)
-
selenium (2)
-
silicon
-
Si-30 (2)
-
-
sulfur
-
S-34/S-32 (4)
-
-
trace metals (2)
-
-
fossils
-
Archaea (2)
-
bacteria
-
coliform bacteria (1)
-
-
borings (2)
-
burrows (4)
-
Chordata
-
Vertebrata
-
Pisces
-
Chondrichthyes
-
Elasmobranchii (1)
-
-
-
Tetrapoda
-
Mammalia
-
Theria
-
Eutheria
-
Proboscidea
-
Elephantoidea
-
Elephantidae
-
Mammuthus (1)
-
-
-
-
-
-
-
Reptilia
-
Anapsida
-
Testudines (1)
-
-
Testudinata (1)
-
-
-
-
-
Cyclostomata (1)
-
fungi (1)
-
Graptolithina (3)
-
Hemichordata (3)
-
ichnofossils
-
Cruziana (1)
-
Nereites (1)
-
Skolithos (1)
-
Thalassinoides (1)
-
Zoophycos (1)
-
-
Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
-
Malacostraca (1)
-
Ostracoda (4)
-
-
-
Trilobitomorpha
-
Trilobita (4)
-
-
-
Brachiopoda
-
Articulata
-
Terebratulida
-
Terebratulina (1)
-
-
-
-
Bryozoa
-
Cheilostomata (1)
-
-
Cnidaria
-
Anthozoa
-
Zoantharia
-
Scleractinia (1)
-
-
-
-
Echinodermata
-
Crinozoa
-
Crinoidea (3)
-
-
-
Mollusca
-
Bivalvia
-
Heterodonta
-
Veneroida
-
Carditidae (1)
-
-
-
Mytilus (1)
-
Pterioida
-
Pteriina
-
Pectinacea
-
Pectinidae (1)
-
-
-
-
-
Cephalopoda
-
Ammonoidea (3)
-
Nautiloidea
-
Nautilus (1)
-
-
-
Gastropoda
-
Mesogastropoda (1)
-
Neogastropoda (1)
-
Turritellidae
-
Turritella (1)
-
-
-
-
Porifera (3)
-
Protista
-
Foraminifera
-
Fusulinina
-
Fusulinidae
-
Triticites (1)
-
-
-
Miliolina
-
Miliolacea (1)
-
-
Rotaliina
-
Cassidulinacea
-
Anomalinidae
-
Cibicidoides
-
Cibicidoides wuellerstorfi (1)
-
-
-
Globocassidulina
-
Globocassidulina subglobosa (1)
-
-
-
Discorbacea (1)
-
Globigerinacea
-
Globigerinidae
-
Globigerina
-
Globigerina bulloides (1)
-
-
Globigerinoides
-
Globigerinoides ruber (3)
-
Globigerinoides trilobus (1)
-
-
-
Globorotaliidae
-
Globorotalia
-
Globorotalia inflata (1)
-
Globorotalia menardii (1)
-
Globorotalia truncatulinoides (1)
-
-
-
Neogloboquadrina
-
Neogloboquadrina pachyderma (3)
-
-
-
Orbitoidacea
-
Amphistegina (2)
-
-
Robertinacea (1)
-
Rotaliacea
-
Ammonia
-
Ammonia beccarii (1)
-
-
Elphidium (1)
-
Heterostegina
-
Heterostegina depressa (1)
-
-
Nummulitidae (1)
-
-
-
-
-
Vermes (2)
-
-
microfossils
-
Conodonta
-
Palmatolepis (1)
-
-
Fusulinina
-
Fusulinidae
-
Triticites (1)
-
-
-
-
palynomorphs
-
Dinoflagellata (3)
-
miospores
-
pollen (2)
-
-
-
Plantae
-
algae
-
calcareous algae (1)
-
Coccolithophoraceae (2)
-
diatoms (3)
-
nannofossils (6)
-
Rhodophyta (2)
-
-
Spermatophyta
-
Angiospermae
-
Dicotyledoneae
-
Leguminosae (2)
-
-
Monocotyledoneae
-
Commelinidae (2)
-
Gramineae (1)
-
-
-
Gymnospermae (1)
-
-
-
problematic fossils (1)
-
prokaryotes (1)
-
Pterobranchia (3)
-
thallophytes (4)
-
-
geochronology methods
-
(U-Th)/He (5)
-
Ar/Ar (11)
-
fission-track dating (5)
-
K/Ar (4)
-
Lu/Hf (2)
-
optical mineralogy (1)
-
optically stimulated luminescence (4)
-
paleomagnetism (26)
-
racemization (1)
-
Rb/Sr (5)
-
Re/Os (2)
-
Sm/Nd (3)
-
Th/U (1)
-
thermochronology (9)
-
U/Pb (17)
-
U/Th/Pb (2)
-
-
geologic age
-
Cenozoic
-
Bronze Age (1)
-
Iron Age (1)
-
Quaternary
-
Holocene
-
middle Holocene (1)
-
upper Holocene (8)
-
-
Kazusa Group (2)
-
Pleistocene
-
Bishop Tuff (1)
-
Champlain Sea (1)
-
middle Pleistocene (2)
-
Shimosa Group (1)
-
upper Pleistocene
-
Eemian (1)
-
Sangamonian (1)
-
Weichselian
-
upper Weichselian
-
Younger Dryas (1)
-
-
-
Wisconsinan (1)
-
-
Wedron Formation (1)
-
-
upper Quaternary
-
Pinedale Glaciation (1)
-
-
-
Siwalik System (1)
-
Tertiary
-
Asmari Formation (1)
-
lower Tertiary (2)
-
Neogene
-
Capistrano Formation (1)
-
Miocene
-
Columbia River Basalt Group (2)
-
Grande Ronde Basalt (1)
-
lower Miocene (4)
-
middle Miocene (3)
-
Peach Springs Tuff (1)
-
Surma Group (1)
-
Temblor Formation (1)
-
upper Miocene
-
Messinian
-
Messinian Salinity Crisis (2)
-
-
Tortonian (2)
-
-
-
Pliocene
-
lower Pliocene (1)
-
-
-
Paleogene
-
Eocene
-
Dammam Formation (1)
-
Green River Formation (2)
-
lower Eocene
-
Ypresian
-
London Clay (2)
-
-
-
middle Eocene
-
Lutetian (1)
-
-
upper Eocene (2)
-
Wilkins Peak Member (1)
-
-
Oligocene
-
Fish Canyon Tuff (1)
-
Frio Formation (1)
-
lower Oligocene (1)
-
middle Oligocene (1)
-
upper Oligocene (1)
-
-
Paleocene
-
lower Paleocene
-
Danian (3)
-
-
upper Paleocene (2)
-
-
Paleocene-Eocene Thermal Maximum (1)
-
Wasatch Formation (1)
-
-
Shahejie Formation (1)
-
Snoqualmie Batholith (1)
-
upper Tertiary (1)
-
-
Tulare Formation (1)
-
upper Cenozoic
-
Merced Formation (1)
-
-
-
Coal Measures (4)
-
Lake Bonneville (1)
-
Mesozoic
-
Cretaceous
-
Bahariya Formation (1)
-
Chonta Formation (1)
-
Colorado Group (1)
-
Comanchean
-
Pearsall Formation (1)
-
-
Logan Canyon Formation (1)
-
Lower Cretaceous
-
Albian
-
Pinda Formation (1)
-
upper Albian (1)
-
-
Aptian
-
Shuaiba Formation (2)
-
-
Barremian (1)
-
Clearwater Formation (1)
-
Gault Clay (1)
-
Mannville Group (2)
-
McMurray Formation (1)
-
Missisauga Formation (1)
-
Mowry Shale (1)
-
Pearsall Formation (1)
-
Thamama Group (1)
-
Torok Formation (1)
-
Yingcheng Formation (1)
-
-
Mancos Shale (1)
-
Middle Cretaceous (4)
-
Nanushuk Group (1)
-
Natih Formation (1)
-
Potomac Group (1)
-
Upper Cretaceous
-
Bagh Beds (1)
-
Campanian
-
upper Campanian (1)
-
-
Cardium Formation (2)
-
Carlile Shale (1)
-
Castlegate Sandstone (1)
-
Cenomanian (3)
-
Codell Sandstone Member (1)
-
Greenhorn Limestone (1)
-
Gulfian
-
Austin Chalk (1)
-
Eagle Ford Formation (1)
-
-
Lameta Formation (1)
-
Lance Formation (2)
-
Lewis Shale (1)
-
Maestrichtian
-
lower Maestrichtian (1)
-
upper Maestrichtian (1)
-
-
Mesaverde Group (1)
-
Niobrara Formation (1)
-
Schrader Bluff Formation (1)
-
Senonian (2)
-
Turonian (4)
-
Vivian Formation (2)
-
-
Viking Formation (2)
-
-
Franciscan Complex (2)
-
Jurassic
-
Bazhenov Formation (1)
-
Ferrar Group (1)
-
Kingak Shale (1)
-
Kirkpatrick Basalt (1)
-
Lower Jurassic
-
Dunlin Group (2)
-
middle Liassic (1)
-
Nordegg Member (1)
-
Pliensbachian (1)
-
Toarcian
-
lower Toarcian (1)
-
-
-
Middle Jurassic
-
Bajocian
-
Brent Group (5)
-
-
Bathonian (1)
-
Callovian (1)
-
Dogger (1)
-
Xishanyao Formation (1)
-
-
Norphlet Formation (3)
-
Oxford Clay (1)
-
Posidonia Shale (1)
-
Upper Jurassic
-
Arab Formation (1)
-
Entrada Sandstone (1)
-
Fulmar Formation (3)
-
Kimmeridge Clay (3)
-
Kimmeridgian (2)
-
Oxfordian (1)
-
Portlandian (1)
-
Sarayaquillo Formation (1)
-
Tithonian (2)
-
-
-
Navajo Sandstone (1)
-
Statfjord Formation (1)
-
Triassic
-
Lower Triassic
-
Bunter (2)
-
Smithian (1)
-
-
Middle Triassic
-
Anisian (1)
-
Doig Formation (1)
-
-
Mole Granite (1)
-
Montney Formation (3)
-
Sherwood Sandstone (2)
-
Upper Triassic
-
Carnian (1)
-
Keuper (3)
-
Luning Formation (1)
-
Mercia Mudstone (1)
-
Norian (1)
-
Rhaetian (2)
-
Yanchang Formation (2)
-
-
-
upper Mesozoic (1)
-
Wingate Sandstone (1)
-
Yanshanian (2)
-
-
Moldanubian (1)
-
Paleozoic
-
Bedford Shale (1)
-
Berea Sandstone (2)
-
Cambrian
-
Acadian (1)
-
Middle Cambrian (1)
-
Upper Cambrian
-
Dresbachian (1)
-
-
-
Carboniferous
-
Lower Carboniferous
-
Dinantian (1)
-
-
Mississippian
-
Barnett Shale (4)
-
Leadville Formation (1)
-
Lower Mississippian (2)
-
Middle Mississippian
-
Visean
-
upper Visean (1)
-
-
-
Sunbury Shale (1)
-
Upper Mississippian
-
Serpukhovian (2)
-
-
-
Namurian (1)
-
Pennsylvanian
-
Lower Pennsylvanian
-
Bashkirian (1)
-
-
Middle Pennsylvanian
-
Moscovian (1)
-
Paradox Formation (1)
-
-
Upper Pennsylvanian
-
Virgilian
-
Lecompton Limestone (1)
-
Oread Limestone (1)
-
-
-
-
Upper Carboniferous
-
Westphalian (1)
-
-
-
Catskill Formation (1)
-
Chattanooga Shale (1)
-
Devonian
-
Beaverhill Lake Group (1)
-
Heemskirk Granite (1)
-
Middle Devonian
-
Eifelian (1)
-
Givetian (1)
-
Hamilton Group (1)
-
Ludlowville Formation (1)
-
Mahantango Formation (2)
-
Marcellus Shale (5)
-
Onondaga Limestone (2)
-
Tully Limestone (1)
-
-
Slave Point Formation (1)
-
Upper Devonian
-
Duperow Formation (1)
-
Famennian
-
Wabamun Group (2)
-
-
Frasnian
-
upper Frasnian (1)
-
-
Ohio Shale (1)
-
-
-
Endicott Group (1)
-
Hanson Creek Formation (1)
-
Lisburne Group (1)
-
lower Paleozoic (3)
-
New Albany Shale (1)
-
Ordovician
-
Ely Springs Dolomite (1)
-
Lower Ordovician
-
Beekmantown Group (1)
-
Ellenburger Group (1)
-
Tremadocian (1)
-
-
Middle Ordovician
-
Ammonoosuc Volcanics (1)
-
Dapingian (1)
-
Darriwilian (1)
-
-
Upper Ordovician
-
Fish Haven Dolomite (1)
-
Wufeng Formation (3)
-
-
Utica Shale (2)
-
-
Permian
-
Guadalupian (1)
-
Hutchinson Salt Member (1)
-
Kamthi Formation (1)
-
Khuff Formation (1)
-
Lower Permian
-
Cisuralian
-
Artinskian (1)
-
-
Leonardian (2)
-
Wolfcampian (1)
-
-
McCloud Limestone (1)
-
Middle Permian (1)
-
Rotliegendes (1)
-
Stone Corral Formation (1)
-
Upper Permian
-
Raniganj Formation (1)
-
Zechstein (6)
-
-
Wellington Formation (1)
-
-
Silurian
-
Lower Silurian
-
Llandovery (1)
-
Wenlock (1)
-
-
Middle Silurian
-
Racine Dolomite (1)
-
-
Niagaran (1)
-
Upper Silurian
-
Salina Group (1)
-
-
-
upper Paleozoic
-
Shanxi Formation (1)
-
-
Woodford Shale (5)
-
-
Phanerozoic (6)
-
Precambrian
-
Adirondack Anorthosite (1)
-
Archean
-
Neoarchean
-
Dharwar Supergroup (1)
-
-
Paleoarchean (1)
-
Peninsular Gneiss (3)
-
Sausar Series (1)
-
-
Cuddapah System (1)
-
Delhi Supergroup (1)
-
Hadean (1)
-
Uinta Mountain Group (1)
-
upper Precambrian
-
Mahakoshal Group (1)
-
Proterozoic
-
Athabasca Formation (1)
-
Great Oxidation Event (2)
-
Huronian
-
Onaping Formation (1)
-
-
Mesoproterozoic (4)
-
Neoproterozoic (3)
-
Paleoproterozoic
-
Francevillian (1)
-
Orosirian (1)
-
Svecofennian (1)
-
-
-
-
-
-
igneous rocks
-
extrusive rocks (3)
-
igneous rocks
-
carbonatites (7)
-
hypabyssal rocks (1)
-
kimberlite (8)
-
picrite (2)
-
plutonic rocks
-
anorthosite (4)
-
appinite (1)
-
diabase (8)
-
diorites
-
quartz diorites (2)
-
tonalite (4)
-
trondhjemite (1)
-
-
gabbros
-
norite (2)
-
troctolite (2)
-
-
granites
-
alaskite (1)
-
A-type granites (1)
-
charnockite (3)
-
I-type granites (1)
-
monzogranite (2)
-
S-type granites (2)
-
two-mica granite (1)
-
-
granodiorites (5)
-
lamprophyres (5)
-
monzonites (2)
-
pegmatite (2)
-
quartz monzonite (2)
-
syenites
-
nepheline syenite
-
foyaite (1)
-
-
-
ultramafics
-
chromitite (1)
-
peridotites
-
dunite (3)
-
garnet lherzolite (2)
-
garnet peridotite (2)
-
harzburgite (2)
-
lherzolite (1)
-
spinel peridotite (1)
-
-
pyroxenite
-
garnet pyroxenite (1)
-
websterite (1)
-
-
-
-
porphyry (2)
-
volcanic rocks
-
adakites (1)
-
andesites (6)
-
basalts
-
alkali basalts (5)
-
flood basalts (2)
-
mid-ocean ridge basalts (6)
-
ocean-island basalts (2)
-
olivine basalt (1)
-
olivine tholeiite (1)
-
tholeiite (1)
-
-
basanite (3)
-
dacites (1)
-
glasses (4)
-
leucitite (1)
-
nephelinite
-
ankaratrite (1)
-
-
pyroclastics
-
ignimbrite (1)
-
pumice (2)
-
scoria (1)
-
tuff (6)
-
-
rhyodacites (1)
-
rhyolites (3)
-
-
-
ophiolite (6)
-
pyrolite (2)
-
volcanic ash (1)
-
wehrlite (1)
-
-
metamorphic rocks
-
metamorphic rocks
-
amphibolites (4)
-
cataclasites (1)
-
eclogite (10)
-
gneisses
-
granite gneiss (2)
-
orthogneiss (3)
-
-
granulites (4)
-
impactites
-
impact breccia (1)
-
-
listwanite (1)
-
metaigneous rocks
-
metagranite (1)
-
metaperidotite (1)
-
-
metasedimentary rocks
-
khondalite (1)
-
metagraywacke (1)
-
metasandstone (1)
-
-
metasomatic rocks
-
fenite (1)
-
greisen (1)
-
skarn (1)
-
-
migmatites (1)
-
mylonites
-
pseudotachylite (3)
-
ultramylonite (1)
-
-
phyllites (1)
-
quartzites (3)
-
schists (6)
-
slates (2)
-
-
ophiolite (6)
-
turbidite (10)
-
-
meteorites
-
meteorites
-
stony meteorites
-
chondrites (1)
-
-
-
-
minerals
-
alloys
-
carbides
-
moissanite (1)
-
-
-
carbonates
-
aragonite (3)
-
calcite (17)
-
dolomite (5)
-
magnesian calcite (1)
-
magnesite (1)
-
siderite (1)
-
-
halides
-
fluorides
-
fluorite (2)
-
-
-
hydrates (2)
-
iron minerals (1)
-
minerals (6)
-
native elements
-
diamond
-
microdiamond (2)
-
-
graphite (4)
-
-
nitrates (1)
-
oxides
-
chrome spinel (1)
-
chromite (1)
-
corundum (2)
-
ferropericlase (4)
-
goethite (1)
-
hematite (1)
-
hercynite (1)
-
hydroxides
-
iron hydroxides (1)
-
-
ilmenite (2)
-
iron oxides (1)
-
magnesioferrite (1)
-
magnetite (7)
-
periclase (1)
-
perovskite (3)
-
rutile (2)
-
spinel (6)
-
wustite (2)
-
-
phosphates
-
apatite (16)
-
fluorapatite (1)
-
monazite (3)
-
-
silicates
-
chain silicates
-
amphibole group
-
clinoamphibole
-
hornblende (6)
-
-
-
pyroxene group
-
clinopyroxene
-
diopside (2)
-
omphacite (3)
-
-
orthopyroxene
-
enstatite (1)
-
-
-
-
feldspathoids (1)
-
framework silicates
-
feldspar group
-
alkali feldspar
-
K-feldspar (4)
-
sanidine (2)
-
-
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Primary terms
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1-20 OF 2507 RESULTS FOR
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Journal Article
Novel estimation of pore-throat size and permeability in carbonates from the integration of NMR and resistivity data in the Santos Basin of Brazil Available to Purchase
Howard August, Zulkuf Azizoglu, Zoya Heidari, Leonardo Goncalves, Lucas Abreu Blanes de Oliveira, Moacyr Silva do Nascimento Neto, Rodolfo Araujo Victor
Journal: Petroleum Geoscience
Publisher: Geological Society of London
Published: 13 May 2025
Petroleum Geoscience (2025) 31 (2): petgeo2024-093.
... than 42% improvement when compared against those obtained from NMR-based permeability assessment methods. The new method provides real-time and depth-by-depth assessments of the pore-throat size distribution and capillary pressure, minimizing the need for core-based calibration efforts and eliminating...
Journal Article
A new approach to investigate the effect of burial depth and clay content on fault permeabilities applied at the Njord Field Available to Purchase
Journal: Petroleum Geoscience
Publisher: Geological Society of London
Published: 16 April 2025
Petroleum Geoscience (2025) 31 (1): petgeo2023-025.
...Philipp Müller; Christian Hermanrud; Haakon Fossen Fault permeability prediction typically relies on empirical relationships between permeability and clay content or burial depth. Calibration of such methods relies on either core data or subsurface observations of fluid pressure and hydrocarbon...
Journal Article
GEOLOGICAL CONDITIONS OF FORMATION AND DISTRIBUTION OF GAS-GEOCHEMICAL FIELDS IN BOTTOM SEDIMENTS OF THE LAPTEV-SIBERIAN SEA ZONE OF THE EAST ARCTIC SHELF Available to Purchase
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 March 2025
Russ. Geol. Geophys. (2025) 66 (3): 331–345.
... dioxide – 0.1482–21.1602, methane – 0.0017–8.3047 and its homologues (in total) – 0.00001–0.0355 cm 3 /kg. It was found that the values of average concentrations of gases in bottom sediments increase with the depth of their occurrence and exceed the anomaly criteria identified for the East Arctic shelf...
Journal Article
Source Parameter Estimation Using Site‐Corrected Source Spectra for the 2019 Ridgecrest Earthquake Sequence in Southern California Available to Purchase
Publisher: Seismological Society of America
Published: 11 February 2025
Bulletin of the Seismological Society of America (2025)
... ‐values of 46 stations were obtained using two methods based on the distance dependence of κ . The source parameters for 9966 events were estimated using the Snoke method ( Snoke, 1987 ). The measurement of κ revealed an obvious magnitude dependence at most stations, and depth dependence at shallower...
Early Publication
Includes: Supplemental Content
Journal Article
Quartz textures, trace elements, fluid inclusions, and in situ oxygen isotopes from Aktogai porphyry Cu deposit, Kazakhstan Available to Purchase
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 February 2025
American Mineralogist (2025) 110 (2): 272–292.
... Aktogai deposit exhibits formation depths and fluid evolution processes similar to Mesozoic and Cenozoic porphyry Cu deposits worldwide. The close association between Cu-Fe sulfides and later quartz formed under intermediate-temperature conditions at Aktogai implies that Cu-Fe sulfides...
Includes: Supplemental Content
Journal Article
Relocation of Recent Shallow Seismic Activity in the Alboran Sea (Western Mediterranean Sea): The 2021–2024, 2016, and 2004 Seismic Series Available to Purchase
Lucía Lozano, Elisa Buforn, Juan Vicente Cantavella, Carolina López‐Sánchez, María Victoria Manzanedo, Jaime Barco, Resurrección Antón, Roberto Cabieces, Maurizio Mattesini
Publisher: Seismological Society of America
Published: 21 January 2025
Bulletin of the Seismological Society of America (2025) 115 (2): 469–488.
... fault. The overall depth distribution reveals shallow hypocenters mainly constrained in a seismogenic layer up to 15–20 km. Our results display a remarkable hypocentral clustering compared with the Instituto Geográfico Nacional (IGN) earthquake catalog solutions and an improvement in the accuracy...
Includes: Supplemental Content
Journal Article
Study on Distribution Law of Ground Stress in Main Coal Seam of Qinshui Coalfield Open Access
Journal: Lithosphere
Publisher: GSW
Published: 17 January 2025
Lithosphere (2025) 2025 (1): lithosphere_2024_197.
...Feng Youliang; Wu Longyun Abstract In order to investigate the distribution patterns of in situ stress in the main coal seams (3 # and 15 # ) of the Qinshui coalfield, an in-depth analysis was conducted on the in situ stress measurement results obtained from 139 measurement points across 46 mines...
Journal Article
Source Parameter Analysis Using Maximum Amplitudes in the Time Domain Available to Purchase
Publisher: Seismological Society of America
Published: 09 January 2025
Bulletin of the Seismological Society of America (2025)
... the resulting source spectra. By this approach, we measure moment magnitudes reliably to as small as M L 1.0. We find stress drop increases with both depth and magnitude and discuss whether this could be an artifact through assumptions about the source, path, and site. KEY POINTS We measure seismic...
Early Publication
Includes: Supplemental Content
Journal Article
Indication of Fluid‐Driven Seismicity in the Palghar Region, India, from Local Earthquake Tomography Available to Purchase
Publisher: Seismological Society of America
Published: 03 January 2025
Bulletin of the Seismological Society of America (2025) 115 (2): 489–504.
... is the line along which the event depth cross‐section was plotted. The inset map shows the location of study area Palghar (red rectangle) in the Indian sub continent. The green region marks the Deccan volcanic province (DVP) region. The color version of this figure is available only in the electronic edition...
Journal Article
Unlocking onshore imaging challenges with FWI: Case studies from the Sultanate of Oman Available to Purchase
Journal: The Leading Edge
Publisher: Society of Exploration Geophysicists
Published: 01 January 2025
The Leading Edge (2025) 44 (1): 22–32.
...Yonghe Guo; Ahmed Aziz; Anna Sedova; Mathieu Reinier; Daniela Donno; Gilles Lambaré; Diego Carotti Abstract Velocity model building and depth imaging are known to be complicated endeavors in numerous onshore areas in the Middle East. Despite recent advancements toward denser, wide-azimuth, and low...
Journal Article
Ambient Noise Tomography: A Sensitive, Rapid, Passive Seismic Technique for Mineral Exploration Open Access
Journal: SEG Discovery
Publisher: Society of Economic Geologists
Published: 01 January 2025
SEG Discovery (2025) (140): 17–26.
... increases with density and also with depth ( Fig. 2 ). Typically, more mafic or higher-metamorphic-grade rocks have higher seismic wave speeds than more felsic or lower-metamorphic-grade rocks ( Salisbury et al., 2003 ; Greenhalgh and Manukyan, 2013 ; Junno et al., 2020 ). The ANT method utilizes...
Journal Article
A fracture-related deep Archean crystalline basement reservoir facilitated by thrusting and mineralogy: Newly discovered Bozhong 19-6 large gas field, offshore Bohai Bay Basin, China Available to Purchase
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 January 2025
AAPG Bulletin (2025) 109 (1): 117–144.
... weathering. The upper portion of this unconventional secondary reservoir, generally within 300 m below the exposure-caused unconformity, is optimized by the feldspathoid dissolution due to depth-dependence weathering. However, the space created by fractures is significant down to a depth of up to 1000 m...
Journal Article
Source Characteristics of Tectonic and Induced Events near St. Gallen, Switzerland: Utilizing the Empirical Green’s Function Method and Generalized Inversion Technique Available to Purchase
Publisher: Seismological Society of America
Published: 31 December 2024
Bulletin of the Seismological Society of America (2024)
... and tectonic events, which is consistent with previous findings, though we note the narrow magnitude range in this study. Such nonself‐similar scaling, if true, may be related to the depth dependence of the stress drops for tectonic events and the perturbation of pore pressure for induced events. This study...
Early Publication
Includes: Supplemental Content
Journal Article
Immediate and High‐Precision Hypocentral Determination for Earthquake Early Warning Applications Using Distributed Acoustic Sensing Available to Purchase
Publisher: Seismological Society of America
Published: 31 December 2024
Bulletin of the Seismological Society of America (2025) 115 (1): 174–190.
... to minimize errors. This process was repeated until the number of channels exceeding the threshold reached 800 or until no more channels exceeded the threshold. To improve the accuracy of the calculation results, the focal depth was constrained to a range of 0–50 km. The flowchart of the method is shown...
Journal Article
Influence of Anthropogenic Groundwater Unloading in Haouz Plain on the 8 September 2023 M w 6.8 Al Haouz, Morocco Earthquake Available to Purchase
Prohelika Dalal, Bhaskar Kundu, K. M. Sreejith, Batakrushna Senapati, Deepak K. Tiwari, Naresh Krishna Vissa, Birendra Jha, Shuanggen Jin
Publisher: Seismological Society of America
Published: 24 December 2024
Bulletin of the Seismological Society of America (2024)
... a significant increase in up‐dip shear stress at the seismogenic depth, explicitly on a slowly deforming High‐Atlas Mountains in western Morocco. The increased stress contributes to the ongoing interseismic tectonic loading on the steeply dipping Tizi n’Test fault and might have led to a significant clock...
Early Publication
Includes: Supplemental Content
Journal Article
Detecting the late Frasnian semichatovae Event on the deep shelf of north Gondwana Available to Purchase
Journal: Journal of the Geological Society
Publisher: Geological Society of London
Published: 20 December 2024
Journal of the Geological Society (2025) 182 (2): jgs2024-147.
.... During this period of recurrent environmental perturbations, conodonts responded to sea-level changes only above a certain depth threshold, which is reached only with the semichatovae event. * Correspondence: [email protected] Scientific editing by Nicholas Hogancamp...
Journal Article
Double‐Pair Double‐Difference Relocation Improves Depth Precision and Highlights Detailed 3D Fault Geometry for Induced Seismicity in Alberta, Canada Available to Purchase
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 04 December 2024
Seismological Research Letters (2025) 96 (3): 100–112.
... depths. We compare the double‐pair double‐difference to event‐pair double‐difference relocations and study the effectiveness and uncertainties of both methods. Although double‐pair double‐difference relocation does not improve absolute locations, substantially improved relative locations and reduced...
Includes: Supplemental Content
Journal Article
A Comparative Geophysical Study of Major Basins in the Pranhita–Godavari Rift, India and Rio Grande Rift, USA Available to Purchase
Publisher: Geological Society of India
Published: 01 December 2024
Jour. Geol. Soc. India (2024) 100 (12): 1701–1712.
... modeling that integrated all of the available constraints, and the average depth to the basement at the basin centers calculated from gravity modeling is 4–5 km. However, for Chintalapudi sub-basin, if the residual gravity anamoly is considered, it may be reduced to about 3.5 km. Fig. 2. Regional...
Journal Article
Knowns, questions, and implications of induced seismicity in the Permian Basin Available to Purchase
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 December 2024
AAPG Bulletin (2024) 108 (12): 2201–2214.
...., Railroad Commission of Texas [RRC] and New Mexico Oil Conservation Division), which rely on public data. Therefore, there are numerous earthquake catalogs available for the region, each with intended uses, strengths, and weaknesses. Each earthquake is cataloged with location and depth uncertainty...
Journal Article
Modeling the evolution of pore pressure from deep wastewater injection in the Midland Basin, Texas Available to Purchase
Jun Ge, Jean-Philippe Nicot, Katie M. Smye, Amanda Z. Calle, Peter Hennings, Elizabeth A. Horne, Jianqiao Leng
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 December 2024
AAPG Bulletin (2024) 108 (12): 2287–2312.
...Jun Ge; Jean-Philippe Nicot; Katie M. Smye; Amanda Z. Calle; Peter Hennings; Elizabeth A. Horne; Jianqiao Leng ABSTRACT Deep formations of the Midland Basin, from the top of the Pennsylvanian-age Wolfcamp D interval (∼8000 ft [∼2400 m] in depth) to the Ordovician-age Ellenburger Group (>10,000...
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