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The AAPG/Datapages Combined Publications Database
Showing 2,898 Results. Searched 200,616 documents.
Frequency vs Azimuth (FVAZ): the Younger Member of the Family of Seismic Driven Fracture Characterization Methods
Juan Tavella, Victoria Lazzari, Marcelo Frydman, Néstor Herrera
Unconventional Resources Technology Conference (URTEC)
... response due to natural fractures appealed geophysicists: fractures also affect absorption: a propagation perpendicular to fracture suffers higher...
2023
Ecological Changes in a Massive Fresh-Water Clay Sequence
J. M. Coleman
GCAGS Transactions
... being examined, cause differential absorption and transmission of the X-rays and result in differential exposure of the film. Film type, intensity...
1966
Diagnostic Characteristics of Disseminated Bitumens from Infrared Spectroscopy
G. I. Timofeyev, I. N. Sidorov
Petroleum Geology: A Digest of Russian Literature
... by infrared spectrometry: Tr. VNIGNI, no. 97. 3. Proskuryakova, Ye. B., 1959, Investigation of infrared absorption spectra of fractions of bitumens...
1973
Composition of Various Types of Bitumens in Sedimentary Rocks Based on Infrared Spectroscopy
L. F. Kolotova
Petroleum Geology: A Digest of Russian Literature
... definite spectral characteristics: two types of humus bitumen and three types of sapropel bitumen. Fig. 1 shows the characteristic types of absorption...
1974
Clay Minerals in the Gypsum Spring and Lower Sundance Formations, Eastern Big Horn Mountains1
Robert B. Furlong
Earth Science Bulletin (WGA)
... is similar to that of illite but with the addition of a brucite layer. Keller (1956) suggests that chlorite may form through the absorption of Mg+2...
1968
Geologic Map and Coloration Facies of the Jurassic Navajo Sandstone, Snow Canyon State Park and Areas of the Red Cliffs Desert Reserve, Washington County, Utah (OFR-561) 2010
Gregory B. Nielsen, Marjorie A. Chan
Utah Geological Survey
... absorption near 0.9 μm is indicative of iron oxide. The absorption band at 2.2 μm is typical of clay minerals with the doublet indicating the mineral...
2010
The Role of Microbial Activity In the Generation of Lower Cretaceous Mixed FE-Oxide–phosphate Ooids from the Provençal Domain, French Maritime Alps
Luca Barale, Anna D'atri, Luca Martire
Journal of Sedimentary Research (SEPM)
...) was used in order to minimize the light absorption by Fe-oxides and better distinguish ooid internal structures. Cathodoluminescence observations were...
2013
ARCHEAN AND PROTEROZOIC GRANTOIDS OF THE HAWLEY MOUNTAIN AREA, BEARTOOTH MOUNTAINS, MONTANA
W. Bruce Lafrenz, Robert D. Shuster, Paul A. Mueller, Donald R. Bowes
Montana Geological Society
..., CM., 1970. Scheme of silicate analysis based on the lithium metaborate fusion followed by atomic-absorption spectrophotometry...
1986
Distinct depositional environments of two internal reference materials with marine sediment matrix from nearby Bangka Island
Ronaldo Irzon, Kurnia, Agus Didit Haryanto, Sigit Maryanto, Undang Hernawan
Geological Society of Malaysia (GSM)
... might be reflected from the enrichment or loss of Ce ions. Positive Ce anomaly is associated with manganese precipitation and hydrolyzation (El-Taher...
2022
Coral Pinnacle Sedimentation, Alacran Reef Lagoon, Mexico
Charles M. Hoskin
Journal of Sedimentary Research (SEPM)
... was made using a Perkin-Elmer atomic absorption spectrometer, model 290. It was found that windward shelf muds (high magnesium) could be confidently...
1966
Fabric and Chemistry of Pore Filling Calcite in Septarian Veins: Models for Limestone Cementation
R. C. Lindholm
Journal of Sedimentary Research (SEPM)
... (dark, white and transparent), chemical analyses (Perkin Elmer Atomic Absorption Spectrophotometer 303) were run on each zone, providing sufficient...
1974
Interpretation of the Origin and Diagenesis of Pleistocene Chalk, Eniwetok Atoll, Marshall Islands
Patricia E. Videtich , Edward L. Tremba
Journal of Sedimentary Research (SEPM)
... this method. Of this 3%, about 10% of the weight loss was due to water, 50% to soluble salts, and 40% was sediment lost in handling during the size...
1978
Dissolution and Analysis of Amorphous Silica in Marine Sediments
Donald W. Eggimann, Frank T. Manheim, Peter R. Betzer
Journal of Sedimentary Research (SEPM)
... concentration of SiO2 in % dry weight in the silicic acid was determined alternatively by ignition loss at 1000° C (FOOTNOTE 3) (84.3), and by HF...
1980
Modes of Diagenesis Responsible for Observed Succession of Potash Evaporites in the Salado Formation, Delaware Basin, New Mexico
Donald G. Harville , Steven J. Fritz
Journal of Sedimentary Research (SEPM)
... for decomposition and comprehensive analysis of silicate rocks by atomic absorption spectrometry: Analytical Chem., v. 40, p. 1682-1686. BODINE, M. W...
1986
Clay Minerals in Evaporite Host Rocks, Palo Duro Basin, Texas Panhandle
R. Stephen Fisher
Journal of Sedimentary Research (SEPM)
.... This is justified for small particles because absorption and fluorescence effects are much less than for bulk specimens, and standards are similar to the samples...
1988
Evidence on History of Sea Water from Chemistry of Deeper Subsurface Waters of Ancient Basins
Keith E. Chave
AAPG Bulletin
... basins, such as the Illinois basin and the California basins, it is not possible. Mechanisms which involve ionic absorption on clay or ionic filtering...
1960
Stylolitization as Source of Cement in Mississippian Salem Limestone, West-Central Indiana (1)
ELIZABETH A. FINKEL and BRUCE H. WILKINSON
AAPG Bulletin
... of carbonate for cementation of immediately contiguous or more outlying units. In addition to porosity loss from localized cementation, permeability...
1990
Environmental Impact Analysis on the Hydraulic Fracture Test Site (HFTS)
Sarah Eisenlord, Thomas Hayes, Kent Perry
Unconventional Resources Technology Conference (URTEC)
... and treated sorbent tube for visible absorption spectrophotometry. Sampling occurred at four time-points for 72 consecutive hours. Time points are (1...
2018
Selected Annotated Bibliography on Oil-Field Waters: RESEARCH NOTES
L. C. Case , E. T. Heck , R. H. Fash , H. E. Minor , J. G. Crawford , F. W. Jessen , Margaret D. Foster , R. L. Ginter
AAPG Bulletin
.... 1283-1306; 4 tables, 22 references. The calcium chloride waters commonly occurring with oil are explained as the result of absorption of water, magnesia...
1942
Differences in the 18O and 13C Signatures of Seasonal Laminae Comprising Travertine Stromatolites
Henry S. Chafetz, Nancy M. Utech, Sean P. Fitzmaurice
Journal of Sedimentary Research (SEPM)
... prepared using standard procedures described in Skougstad et al. (1979) and analyzed using a Perkin-Elmer Model 5000 atomic absorption spectrophotometer...
1991
Hydrologic Framework of A Sabkha Along Arabian Gulf
R. J. Patterson , D. J. J. Kinsman
AAPG Bulletin
... and beneath the lagoon. Chloride concentrations were determined by titration with AgNO3, and Ca and Mg were measured by atomic absorption using a Perkin...
1981
Nuclear magnetic resonance and x-ray microtomography pore-scale analysis of oil recovery in mixed-porosity carbonates
Hubert King, Michael Sansone, John Dunsmuir, Nicole Callen, Pavel Kortunov, Ye Xu, Antonio Buono, Bo Gao, and James Kralik
AAPG Bulletin
... ambient conditions. The sample was encapsulated in a Teflon wrap to ensure no fluid loss during measurement, verified by measuring sample mass before...
2020
FRONTMATTER: The Oil Fields of Russia
Arthur Beeby Thompson
Other Technical
... from the direct pecuniary loss sustained by producers, the lives of leading producers have been in constant danger, and many leading employers...
1908
Effects of Salinization Pathways upon Morphogenic and Geochemical Features of Coastal-Margin Vertisols, Aransas National Wildlife Refuge, Aransas County, Texas
Sarah J. Kogler, Steven G. Driese
GCAGS Journal
... toxicity; reduces nutrient cycling; clay dispersion, loss of Parent rock weathering, SI, saline-brackish GW, wet and dry deposition of marine-derived...
2023
Hobbs Field, Lea County, New Mexico
Ronald K. DeFord , Edwin A. Wahlstrom
AAPG Bulletin
... of cavernous openings on the crest of the structure is fairly convincing. 1. Loss of returns is evidence of cavernous condition. In drilling ordinary...
1932