- 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
-
Atlantic Ocean
-
North Atlantic
-
Gulf of Mexico (1)
-
-
-
Campos Basin (2)
-
Cascade Range (1)
-
Central America
-
Nicaragua (1)
-
-
Cerro Negro (1)
-
Crater Lake (1)
-
North America
-
Gulf Coastal Plain (1)
-
-
San Joaquin Basin (1)
-
South America
-
Brazil
-
Rio de Janeiro Brazil (1)
-
-
-
United States
-
Arizona (1)
-
California (1)
-
Colorado
-
Huerfano County Colorado (1)
-
-
Louisiana (2)
-
Mississippi Delta (1)
-
Oregon (1)
-
-
-
commodities
-
bitumens (1)
-
clay deposits (1)
-
petroleum (1)
-
-
elements, isotopes
-
boron
-
B-11/B-10 (7)
-
-
hydrogen
-
D/H (1)
-
deuterium (1)
-
-
isotope ratios (4)
-
isotopes
-
stable isotopes
-
B-11/B-10 (7)
-
D/H (1)
-
deuterium (1)
-
Li-7/Li-6 (3)
-
O-18/O-16 (2)
-
-
-
metals
-
alkali metals
-
lithium
-
Li-7/Li-6 (3)
-
-
-
aluminum (1)
-
iron (2)
-
-
oxygen
-
O-18/O-16 (2)
-
-
-
fossils
-
bacteria (3)
-
-
geologic age
-
Cenozoic
-
Tertiary
-
Paleogene
-
Eocene
-
lower Eocene (1)
-
-
Wilcox Group (1)
-
-
-
-
Mesozoic
-
Cretaceous
-
Upper Cretaceous
-
Pierre Shale (2)
-
Santonian (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
volcanic rocks
-
glasses
-
palagonite (1)
-
-
-
-
-
minerals
-
iron minerals (1)
-
minerals (1)
-
oxides
-
goethite (1)
-
-
silicates
-
sheet silicates
-
clay minerals
-
montmorillonite (1)
-
smectite (10)
-
-
illite (9)
-
rectorite (1)
-
-
-
sulfides
-
pyrite (1)
-
-
-
Primary terms
-
Atlantic Ocean
-
North Atlantic
-
Gulf of Mexico (1)
-
-
-
bacteria (3)
-
bitumens (1)
-
boron
-
B-11/B-10 (7)
-
-
Cenozoic
-
Tertiary
-
Paleogene
-
Eocene
-
lower Eocene (1)
-
-
Wilcox Group (1)
-
-
-
-
Central America
-
Nicaragua (1)
-
-
chemical analysis (1)
-
clay deposits (1)
-
clay mineralogy (7)
-
crystal chemistry (2)
-
crystal growth (1)
-
crystal structure (2)
-
data processing (1)
-
geochemistry (13)
-
hydrogen
-
D/H (1)
-
deuterium (1)
-
-
igneous rocks
-
volcanic rocks
-
glasses
-
palagonite (1)
-
-
-
-
inclusions (1)
-
isotopes
-
stable isotopes
-
B-11/B-10 (7)
-
D/H (1)
-
deuterium (1)
-
Li-7/Li-6 (3)
-
O-18/O-16 (2)
-
-
-
magmas (1)
-
Mesozoic
-
Cretaceous
-
Upper Cretaceous
-
Pierre Shale (2)
-
Santonian (1)
-
-
-
-
metals
-
alkali metals
-
lithium
-
Li-7/Li-6 (3)
-
-
-
aluminum (1)
-
iron (2)
-
-
metasomatism (3)
-
minerals (1)
-
North America
-
Gulf Coastal Plain (1)
-
-
oxygen
-
O-18/O-16 (2)
-
-
petroleum (1)
-
phase equilibria (1)
-
pollution (2)
-
sedimentary petrology (1)
-
sedimentary rocks
-
clastic rocks
-
bentonite (3)
-
shale (2)
-
-
-
sediments
-
clastic sediments
-
clay (2)
-
kaolin (2)
-
-
-
South America
-
Brazil
-
Rio de Janeiro Brazil (1)
-
-
-
spectroscopy (1)
-
United States
-
Arizona (1)
-
California (1)
-
Colorado
-
Huerfano County Colorado (1)
-
-
Louisiana (2)
-
Mississippi Delta (1)
-
Oregon (1)
-
-
-
sedimentary rocks
-
sedimentary rocks
-
clastic rocks
-
bentonite (3)
-
shale (2)
-
-
-
-
sediments
-
sediments
-
clastic sediments
-
clay (2)
-
kaolin (2)
-
-
-
Reply to Comment by Marion Wampler on Clauer et al., 2022
Boron and Lithium Isotopic Signatures of Nanometer-Sized Smectite-Rich Mixed-Layers of Bentonite Beds From Campos Basin (Brazil)
Tracing Organic-Inorganic Interactions by Light Stable Isotopes (H, Li, B, O) of an Oil-Bearing Shale and its Clay Fraction During Hydrous Pyrolysis
Preliminary Evaluation of Natural Antibacterial Clays for Treating Wound Infections
Natural Antibacterial Clays: Historical Uses and Modern Advances
The Anatomy of an Antibacterial Clay Deposit: A New Economic Geology
Geomimicry: harnessing the antibacterial action of clays
METHODS FOR IN SITU SIMS MICROANALYSIS OF BORON AND ITS ISOTOPES IN PALAGONITE
Kaolins and Health: From First Grade to First Aid
Bentonite, Bandaids, and Borborygmi
CHEMICAL AND MINERALOGICAL CHARACTERISTICS OF FRENCH GREEN CLAYS USED FOR HEALING
Intracrystalline boron isotope partitioning in illite-smectite: Testing the geothermometer
CRYSTAL-SIZE DEPENDENCE OF ILLITE-SMECTITE ISOTOPE EQUILIBRATION WITH CHANGING FLUIDS
Organic molecules formed in a “primordial womb”
Exploring intra-crystalline B-isotope variations in mixed-layer illite-smectite
Isotopic and elemental partitioning of boron between hydrous fluid and silicate melt
Abstract Secondary ion mass spectrometry (SIMS) was used to obtain microanalyses of oxygen isotope ratios on diagenetic quartz cements from the Travis Peak Formation, Texas Gulf Coast. These measurements on 15to 20-nm-diameter spots were made on standard polished thin sections, and the analyses allow new constraints on paleofluid isotopic compositions. Microanalyses of detrital quartz (13.7 ± 4.6%»; n = 76) compare well with conventional analyses on bulk samples (15.3 ± 3.4%o, n = 33), indicating good calibration of the microanalytical technique. The range of detrital quartz δ 18 O was 4 to 20%o, with larger detrital grains having lower values (~ 12%o) typical of a plutonic source and smaller grains (16 to 23%o) typical of a metamorphic source. Errors in individual analyses are 1.3—1.8%o (lcr). Bulk analyses of authigenic quartz in whole rock samples indicated an average oxygen isotopic ratio of 19 ± 3.3%o SMOW (n = 33). SIMS results ranged from 22%o to 35%o, with an average of 26 ± 3.5%o (n = 34). The isotopic results can be interpreted in terms of the geologic burial history, suggesting that sediments are buried and uplifted through waters that are isotopically stratified, becoming ,s O-enriched with depth. Under these constraints, authigenic quartz with 8 ,8 0 values >29%o must have precipitated from 2%o meteoric water at temperatures £50°C. Most δ 18 O values range from 25-29%o, implying that precipitation volumes peaked between 60-90°C, from waters with a positive δ 18 O value. Fewer quartz cements with 8 ,s O values <25%o were found, suggesting that quartz precipitation declined at temperatures >90°C. The burial history curve shows that the formation reached this temperature at —60 Ma. Quartz precipitation might have declined due to hydrocarbon infiltration, transition metals inhibiting quartz precipitation or occlusion of pores causing diminished fluid flow. The mass transfer of silica required to precipitate the observed abundance of quartz cement at temperatures between 60-90°C can be explained if Travis Peak paleofluids were actively converting. In this flow regime, the heterogeneity in 8 ,s O values of quartz cements would result from temperature variations during precipitation from a paleofluid having a δ 18 O value of approximately + 2%o. This fluid might represent a mixture of meteoric water (— 2%c) and deep-seated basinal fluids (+ 5%o). Hot fluids introduced along fracture zones associated with uplift of the Sabine Arch (—100 Ma), might have dispersed into the permeable Travis Peak sandstone and precipitated quartz upon cooling.