- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
NARROW
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Arctic Ocean (1)
-
Asia
-
Far East
-
China
-
Chongqing China (1)
-
Guizhou China (2)
-
Hunan China (1)
-
Ordos Basin (1)
-
Shanxi China (2)
-
Sichuan Basin (3)
-
Sichuan China (1)
-
Songliao Basin (1)
-
-
Indonesia
-
Sunda Arc (1)
-
-
-
Indian Peninsula
-
India
-
Gujarat India (1)
-
-
-
Kamchatka Russian Federation
-
Kamchatka Peninsula
-
Tolbachik (1)
-
-
-
Middle East
-
Turkey
-
Anatolia (1)
-
Tuz Golu (1)
-
-
-
Russian Pacific region (1)
-
-
Australasia
-
New Zealand (2)
-
-
Cambay Basin (1)
-
Canada
-
Eastern Canada
-
Quebec
-
Gaspe Peninsula (1)
-
-
-
Western Canada
-
Alberta (2)
-
British Columbia (3)
-
Canadian Rocky Mountains (1)
-
-
-
Caspian Basin (1)
-
Coast Ranges (1)
-
Commonwealth of Independent States
-
Azerbaijan (1)
-
Dnieper-Donets Basin (1)
-
Russian Federation
-
Kamchatka Russian Federation
-
Kamchatka Peninsula
-
Tolbachik (1)
-
-
-
Orenburg Russian Federation (1)
-
Russian Pacific region (1)
-
-
Ukraine (1)
-
-
East Coast Basin (1)
-
Europe
-
Azerbaijan (1)
-
Dnieper-Donets Basin (1)
-
Orenburg Russian Federation (1)
-
Ukraine (1)
-
Western Europe
-
France
-
Aude France
-
Corbieres (1)
-
-
Languedoc (1)
-
-
North Pyrenean Fault (1)
-
United Kingdom
-
Great Britain
-
England (1)
-
-
-
-
-
Great Sumatran Fault (1)
-
Mexico
-
Mexico state
-
Federal District Mexico
-
Mexico City Mexico (1)
-
-
-
-
North America
-
Appalachian Basin (4)
-
Gulf Coastal Plain (2)
-
North American Cordillera (1)
-
Rocky Mountains
-
Canadian Rocky Mountains (1)
-
U. S. Rocky Mountains (1)
-
-
Western Canada Sedimentary Basin (1)
-
Western Interior
-
Western Interior Seaway (1)
-
-
Williston Basin (1)
-
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific (1)
-
-
North Pacific
-
Northeast Pacific (1)
-
-
-
Permian Basin (1)
-
Russian Platform
-
Dnieper-Donets Basin (1)
-
-
Santa Maria Basin (1)
-
South America
-
Chile
-
Santiago Chile (1)
-
-
-
United States
-
Anadarko Basin (1)
-
California
-
San Diego County California (1)
-
-
Colorado
-
Boulder County Colorado (1)
-
-
Delaware Basin (1)
-
Denver Basin (1)
-
Louisiana (1)
-
Maine (1)
-
Montana
-
Phillips County Montana (1)
-
Toole County Montana (1)
-
-
New Mexico (1)
-
North Dakota
-
Mountrail County North Dakota (1)
-
-
Ohio (1)
-
Oklahoma
-
Canadian County Oklahoma (1)
-
Carter County Oklahoma (1)
-
Woods County Oklahoma (1)
-
-
Texas
-
Fort Worth Basin (2)
-
Midland Basin (1)
-
West Texas (1)
-
Wise County Texas (1)
-
-
U. S. Rocky Mountains (1)
-
West Virginia
-
Marshall County West Virginia (1)
-
Monongalia County West Virginia (1)
-
-
Western U.S. (1)
-
Wyoming
-
Carbon County Wyoming (1)
-
Hanna Basin (1)
-
-
-
-
commodities
-
abrasives (1)
-
bitumens (2)
-
construction materials
-
building stone (2)
-
-
energy sources (1)
-
oil and gas fields (7)
-
petroleum
-
natural gas
-
coalbed methane (1)
-
shale gas (11)
-
-
shale oil (3)
-
-
tight sands (2)
-
-
elements, isotopes
-
carbon
-
C-13/C-12 (1)
-
organic carbon (4)
-
-
isotope ratios (1)
-
isotopes
-
stable isotopes
-
C-13/C-12 (1)
-
-
-
metals
-
actinides
-
uranium (1)
-
-
alkali metals
-
potassium (1)
-
-
aluminum (1)
-
iron (1)
-
molybdenum (2)
-
titanium (1)
-
zirconium (1)
-
-
silicon (1)
-
-
geochronology methods
-
paleomagnetism (1)
-
-
geologic age
-
Cenozoic
-
Tertiary
-
Paleogene
-
Eocene
-
middle Eocene
-
Lutetian (1)
-
-
-
Oligocene (1)
-
-
-
-
Mesozoic
-
Cretaceous
-
Qingshankou Formation (1)
-
Upper Cretaceous
-
Cenomanian (1)
-
Coniacian (1)
-
Fort Hays Limestone Member (1)
-
Gulfian
-
Austin Chalk (1)
-
Eagle Ford Formation (2)
-
Woodbine Formation (1)
-
-
Maestrichtian (1)
-
Niobrara Formation (1)
-
Santonian (1)
-
Smoky Hill Chalk Member (1)
-
Turonian (1)
-
Tuscaloosa Formation (1)
-
-
-
Franciscan Complex (1)
-
Jurassic
-
Upper Jurassic
-
Haynesville Formation (1)
-
-
-
Triassic
-
Montney Formation (2)
-
-
Yanshanian (1)
-
-
Paleozoic
-
Cambrian
-
Lower Cambrian (2)
-
-
Carboniferous
-
Benxi Formation (1)
-
Mississippian
-
Barnett Shale (4)
-
Lower Mississippian
-
Kinderhookian
-
Banff Formation (1)
-
-
-
Middle Mississippian
-
Visean
-
upper Visean (1)
-
-
-
-
Pennsylvanian
-
Marble Falls Group (1)
-
-
-
Devonian
-
Beaverhill Lake Group (1)
-
Keg River Formation (1)
-
Middle Devonian
-
Marcellus Shale (3)
-
Onondaga Limestone (1)
-
-
Upper Devonian
-
Duperow Formation (1)
-
Frasnian
-
Leduc Formation (1)
-
-
-
-
Ordovician
-
Trenton Group (1)
-
Upper Ordovician
-
Wufeng Formation (2)
-
-
Utica Shale (1)
-
-
Permian
-
Lower Permian
-
Wolfcampian (1)
-
-
-
Silurian
-
Lower Silurian (3)
-
-
Taiyuan Formation (1)
-
upper Paleozoic
-
Bakken Formation (3)
-
Shanxi Formation (2)
-
-
Woodford Shale (2)
-
-
-
igneous rocks
-
igneous rocks
-
plutonic rocks
-
granites (2)
-
-
-
-
metamorphic rocks
-
metamorphic rocks
-
mylonites
-
ultramylonite (1)
-
-
-
turbidite (1)
-
-
minerals
-
carbonates
-
dolomite (1)
-
kutnohorite (1)
-
siderite (1)
-
-
halides
-
chlorides
-
halite (1)
-
-
-
silicates
-
asbestos (1)
-
framework silicates
-
silica minerals
-
opal
-
opal-A (1)
-
opal-CT (1)
-
-
quartz (4)
-
-
-
sheet silicates
-
clay minerals
-
smectite (1)
-
-
clintonite (1)
-
mica group
-
celadonite (1)
-
glauconite (1)
-
muscovite (1)
-
-
serpentine group
-
chrysotile (1)
-
-
-
-
sulfides
-
pyrite (1)
-
-
vanadates (1)
-
-
Primary terms
-
Arctic Ocean (1)
-
Asia
-
Far East
-
China
-
Chongqing China (1)
-
Guizhou China (2)
-
Hunan China (1)
-
Ordos Basin (1)
-
Shanxi China (2)
-
Sichuan Basin (3)
-
Sichuan China (1)
-
Songliao Basin (1)
-
-
Indonesia
-
Sunda Arc (1)
-
-
-
Indian Peninsula
-
India
-
Gujarat India (1)
-
-
-
Kamchatka Russian Federation
-
Kamchatka Peninsula
-
Tolbachik (1)
-
-
-
Middle East
-
Turkey
-
Anatolia (1)
-
Tuz Golu (1)
-
-
-
Russian Pacific region (1)
-
-
Australasia
-
New Zealand (2)
-
-
bitumens (2)
-
Canada
-
Eastern Canada
-
Quebec
-
Gaspe Peninsula (1)
-
-
-
Western Canada
-
Alberta (2)
-
British Columbia (3)
-
Canadian Rocky Mountains (1)
-
-
-
carbon
-
C-13/C-12 (1)
-
organic carbon (4)
-
-
catalogs (1)
-
Cenozoic
-
Tertiary
-
Paleogene
-
Eocene
-
middle Eocene
-
Lutetian (1)
-
-
-
Oligocene (1)
-
-
-
-
construction materials
-
building stone (2)
-
-
crust (2)
-
crystal structure (1)
-
data processing (6)
-
deformation (11)
-
diagenesis (3)
-
earthquakes (20)
-
energy sources (1)
-
engineering geology (4)
-
Europe
-
Azerbaijan (1)
-
Dnieper-Donets Basin (1)
-
Orenburg Russian Federation (1)
-
Ukraine (1)
-
Western Europe
-
France
-
Aude France
-
Corbieres (1)
-
-
Languedoc (1)
-
-
North Pyrenean Fault (1)
-
United Kingdom
-
Great Britain
-
England (1)
-
-
-
-
-
faults (12)
-
folds (2)
-
foliation (1)
-
foundations (3)
-
fractures (13)
-
geochemistry (1)
-
geophysical methods (20)
-
government agencies (1)
-
ground water (1)
-
hydrology (1)
-
igneous rocks
-
plutonic rocks
-
granites (2)
-
-
-
inclusions
-
fluid inclusions (1)
-
-
isotopes
-
stable isotopes
-
C-13/C-12 (1)
-
-
-
lava (1)
-
lineation (1)
-
magmas (1)
-
Mesozoic
-
Cretaceous
-
Qingshankou Formation (1)
-
Upper Cretaceous
-
Cenomanian (1)
-
Coniacian (1)
-
Fort Hays Limestone Member (1)
-
Gulfian
-
Austin Chalk (1)
-
Eagle Ford Formation (2)
-
Woodbine Formation (1)
-
-
Maestrichtian (1)
-
Niobrara Formation (1)
-
Santonian (1)
-
Smoky Hill Chalk Member (1)
-
Turonian (1)
-
Tuscaloosa Formation (1)
-
-
-
Franciscan Complex (1)
-
Jurassic
-
Upper Jurassic
-
Haynesville Formation (1)
-
-
-
Triassic
-
Montney Formation (2)
-
-
Yanshanian (1)
-
-
metals
-
actinides
-
uranium (1)
-
-
alkali metals
-
potassium (1)
-
-
aluminum (1)
-
iron (1)
-
molybdenum (2)
-
titanium (1)
-
zirconium (1)
-
-
metamorphic rocks
-
mylonites
-
ultramylonite (1)
-
-
-
metamorphism (1)
-
Mexico
-
Mexico state
-
Federal District Mexico
-
Mexico City Mexico (1)
-
-
-
-
mining geology (1)
-
mud volcanoes (1)
-
North America
-
Appalachian Basin (4)
-
Gulf Coastal Plain (2)
-
North American Cordillera (1)
-
Rocky Mountains
-
Canadian Rocky Mountains (1)
-
U. S. Rocky Mountains (1)
-
-
Western Canada Sedimentary Basin (1)
-
Western Interior
-
Western Interior Seaway (1)
-
-
Williston Basin (1)
-
-
oil and gas fields (7)
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific (1)
-
-
North Pacific
-
Northeast Pacific (1)
-
-
-
paleogeography (1)
-
paleomagnetism (1)
-
Paleozoic
-
Cambrian
-
Lower Cambrian (2)
-
-
Carboniferous
-
Benxi Formation (1)
-
Mississippian
-
Barnett Shale (4)
-
Lower Mississippian
-
Kinderhookian
-
Banff Formation (1)
-
-
-
Middle Mississippian
-
Visean
-
upper Visean (1)
-
-
-
-
Pennsylvanian
-
Marble Falls Group (1)
-
-
-
Devonian
-
Beaverhill Lake Group (1)
-
Keg River Formation (1)
-
Middle Devonian
-
Marcellus Shale (3)
-
Onondaga Limestone (1)
-
-
Upper Devonian
-
Duperow Formation (1)
-
Frasnian
-
Leduc Formation (1)
-
-
-
-
Ordovician
-
Trenton Group (1)
-
Upper Ordovician
-
Wufeng Formation (2)
-
-
Utica Shale (1)
-
-
Permian
-
Lower Permian
-
Wolfcampian (1)
-
-
-
Silurian
-
Lower Silurian (3)
-
-
Taiyuan Formation (1)
-
upper Paleozoic
-
Bakken Formation (3)
-
Shanxi Formation (2)
-
-
Woodford Shale (2)
-
-
paragenesis (1)
-
petroleum
-
natural gas
-
coalbed methane (1)
-
shale gas (11)
-
-
shale oil (3)
-
-
remote sensing (1)
-
rock mechanics (11)
-
sea-level changes (2)
-
sedimentary rocks
-
carbonate rocks
-
chalk (1)
-
limestone (4)
-
-
chemically precipitated rocks
-
chert (2)
-
-
clastic rocks
-
bentonite (1)
-
marl (1)
-
mudstone (8)
-
sandstone (2)
-
shale (18)
-
siltstone (2)
-
-
coal (2)
-
gas shale (1)
-
oil shale (1)
-
-
sedimentary structures
-
biogenic structures
-
bioturbation (2)
-
-
planar bedding structures
-
bedding (1)
-
laminations (1)
-
-
-
sedimentation (2)
-
sediments
-
clastic sediments
-
clay (1)
-
residual clays (1)
-
-
-
silicon (1)
-
slope stability (1)
-
soil mechanics (1)
-
soils
-
Clay soils (1)
-
-
South America
-
Chile
-
Santiago Chile (1)
-
-
-
spectroscopy (2)
-
structural analysis (4)
-
tectonics
-
neotectonics (1)
-
-
tunnels (1)
-
United States
-
Anadarko Basin (1)
-
California
-
San Diego County California (1)
-
-
Colorado
-
Boulder County Colorado (1)
-
-
Delaware Basin (1)
-
Denver Basin (1)
-
Louisiana (1)
-
Maine (1)
-
Montana
-
Phillips County Montana (1)
-
Toole County Montana (1)
-
-
New Mexico (1)
-
North Dakota
-
Mountrail County North Dakota (1)
-
-
Ohio (1)
-
Oklahoma
-
Canadian County Oklahoma (1)
-
Carter County Oklahoma (1)
-
Woods County Oklahoma (1)
-
-
Texas
-
Fort Worth Basin (2)
-
Midland Basin (1)
-
West Texas (1)
-
Wise County Texas (1)
-
-
U. S. Rocky Mountains (1)
-
West Virginia
-
Marshall County West Virginia (1)
-
Monongalia County West Virginia (1)
-
-
Western U.S. (1)
-
Wyoming
-
Carbon County Wyoming (1)
-
Hanna Basin (1)
-
-
-
weathering (1)
-
well-logging (5)
-
-
rock formations
-
Monterey Formation (1)
-
-
sedimentary rocks
-
sedimentary rocks
-
carbonate rocks
-
chalk (1)
-
limestone (4)
-
-
chemically precipitated rocks
-
chert (2)
-
-
clastic rocks
-
bentonite (1)
-
marl (1)
-
mudstone (8)
-
sandstone (2)
-
shale (18)
-
siltstone (2)
-
-
coal (2)
-
gas shale (1)
-
oil shale (1)
-
-
turbidite (1)
-
-
sedimentary structures
-
sedimentary structures
-
biogenic structures
-
bioturbation (2)
-
-
planar bedding structures
-
bedding (1)
-
laminations (1)
-
-
-
-
sediments
-
sediments
-
clastic sediments
-
clay (1)
-
residual clays (1)
-
-
-
turbidite (1)
-
-
soils
-
residual soils (1)
-
soils
-
Clay soils (1)
-
-
brittleness
P-wave reflectivity parameterization and nonlinear inversion in terms of Young’s modulus and Poisson ratio
Dynamically Triggered Events in a Low Seismically Active Region of Gujarat, Northwest India, during the 2012 M w 8.6 Indian Ocean Earthquake
Convolutional neural network long short-term memory deep learning model for sonic well log generation for brittleness evaluation
Multimineral petrophysics of thermally immature Eagle Ford Group and Cretaceous mudstones, U.S. Geological Survey Gulf Coast 1 research wellbore in central Texas
A natural example of brittle-to-viscous strain localization under constant-stress conditions: a case study of the Kellyland fault zone, Maine, USA
Classification and Evaluation on Shale Gas Reservoir for Wufeng-Longmaxi Formation in Chuannan Area, Sichuan Basin
The relationship between strength and abrasion characterizations in granite building stones
Mechanical stratigraphy of Mississippian strata using machine learning and seismic-based reservoir characterization and modeling, Anadarko Basin, Oklahoma
Brittleness evaluation of the Lower Silurian marine shale reservoirs: A case study of Longmaxi shale in Fenggang block, southern China
1D mechanical earth modeling in the Permian Lucaogou Shale of the Santanghu Basin, Northwest China, from a complete set of laboratory data
Brittleness modeling selects optimum stimulation zone in shaly source rocks in the Whangai Formation, New Zealand
Three-dimensional nonlinear response history analyses for earthquake damage assessment: A reinforced concrete wall building case study
Characterization of organic content, brittleness index, and geomechanical properties of the Eocene Cambay Shales — Insights from the Ankleshwar oil field in western India
Application of brittleness index to interpret microseismic event distribution in a hydraulically fractured shale formation
Replacing conventional brittleness indices determination with new attributes using true hydrofracturing mechanism
Predicting reservoir quality in the Bakken Formation, North Dakota, using petrophysics and 3C seismic data
Engineering-oriented “sweet spot” prediction for tight sandstone gas reservoirs: A case study from Sulige gas field in Western China
Machine learning for geophysical characterization of brittleness: Tuscaloosa Marine Shale case study
Regularization to Stein unbiased risk estimation denoising and threshold for first-break picking to low signal-to-noise ratio of surface microseismic monitoring — Case of gas shale fracturing
Compositional and Diagenetic Controls on Brittleness in Organic Siliceous Mudrocks
ABSTRACT An evaluation of an integrated data set collected over the past 12 years designed to identify the parameters controlling reservoir quality and production properties in organic, siliceous mudrocks reveals the key diagenetic processes affecting the development of brittleness in siliceous mudrocks. This work was motivated by the failure of early efforts to correlate brittleness to x-ray diffraction (XRD) mineralogy. The outcome of this analysis has been the recognition of two, often overlapping, pathways to brittleness that are determined at the time of deposition by the relative proportions of clay, detrital quartz, and biogenic silica present in the original sediment and are later affected by burial history. One pathway begins with a phyllosilicate–mud-dominated sediment, and the other begins with a sediment containing common or abundant biogenic silica (opal-A). Both pathways are characterized by compactional porosity loss and both eventually include the generation of authigenic quartz cement; however, the source of that authigenic quartz is different between the two pathways. The authigenic quartz that characterizes the first pathway is developed from the illitization of smectite and is precipitated as a cement within the argillaceous matrix. This authigenic quartz is detectable along with the detrital quartz by XRD analysis. All other factors being equal, the volume of brittle, authigenic quartz cement derived from the alteration of smectite is proportional to the volume of original clay. As a result, the effectiveness of this cement to increase the brittleness of the rock may be impacted by the presence of the ductile clays. In the alternate pathway, authigenic quartz is derived from the transformation of biogenic opal-A and is independent of the amount of clay. Much of the XRD quartz volume in rocks derived from biogenic–silica-rich sediment that contained little or no detrital quartz will comprise a brittle, authigenic cement.