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The AAPG/Datapages Combined Publications Database
Showing 675 Results. Searched 200,673 documents.
Controls on the Deposition of Bedded Halite within the Haynesville Formation, Champion-Klepac No. 1 Core, Southwestern Alabama
Rachel A. Eustice, Lynton S. Land
GCAGS Transactions
..." toward higher bromide concentrations. Thus, the bromide concentrations are buffered to approximately 85 ppm throughout the chevron halite zone. Within...
1994
Geochemistry and origin of shallow gas in the Baise Basin, southern China
Yanhua Shuai, Ping’an Peng, Yanrong Zou, Shuichang Zhang, Ling Huang
CSPG Bulletin
..., p. 8–12. Hanor, J S. 2001. Reactive transport involving rock-buffered fluids of varying salinity. Geochimica et Cosmochimica Acta, v. 65, p. 3721...
2015
Mineral Buffering of Contaminated Ground Water Compositions at a Hazardous Waste Site in Southwestern Louisiana
Jeffrey S. Hanor , Kathleen M. McManus ,, Vishnu Ranganathan ,, Shaobing Su
GCAGS Transactions
... were partially buffered in terms of pH, Na+, K+, Mg2+, Ca2+, and dissolved silica by metastable equilibrium with respect to the mineral assemblage...
1995
Clay Minerals Of The Silurian Clinton Ironstones, New York State
Robert schoen
Journal of Sedimentary Research (SEPM)
..., M. L., 1960, Iron oxide removal from soils and clays by a dithionite-citrate system buffered with sodium bicarbonate: Clays and Clay Minerals; Proc...
1964
Modeling Hydrogen Geochemistry Using Fundamental Quantum-mechanical Approaches to Enable Hydrogen Geostorage
Vardhan Satalkar, Deepak Devegowda, Chandra Rai, Son Dang
Unconventional Resources Technology Conference (URTEC)
.... Giffaut, “Kinetics of pyrite to pyrrhotite reduction by hydrogen in calcite buffered solutions between 90 and 180°c: Implications for nuclear waste...
2023
Evaluation of Hydrogen Interaction with Mudrocks: Implication for Geo-Storage
Sidi Mamoudou, Son Dang, Mark Curtis, Chandra Rai
Unconventional Resources Technology Conference (URTEC)
... to pyrrhotite reduction by hydrogen in calcite buffered solutions between 90 and 180°C: Implications for nuclear waste disposal. Geochimica et Cosmochimica...
2024
Assessing Hydrogen Sulfide Generation from Pyrite Reduction: Implications for Underground Hydrogen Storage
Rana AL Homoud, Marcos Vitor Barbosa Machado, Hugh Daigle
Unconventional Resources Technology Conference (URTEC)
...e Buffered Solutions between 90 and 180°C: Implications for Nuclear Waste Disposal. Geochimica et Cosmochimica Acta 2010, 74, 2894–2914, doi:10.1016/...
2024
Sedimentary Components of Northwest Pacific Pelagic Sediments
Robert K. Oser
Journal of Sedimentary Research (SEPM)
...) and the remaining samples were collected on U. S. Naval Oceanographic Office surveys of 1968 and 1969. Samples were treated with buffered (pH 7) 10...
1972
Pore Fluid and Mineralogical Studies of Recent Marine Sediments: Bauer Depression Region of East Pacific Rise
James L. Bischoff , F. L. Sayles
Journal of Sedimentary Research (SEPM)
..., A., AND DISTECHE, S., 1967. The effect of pressure on the dissociation of carbonic acid from measurements with buffered glass electrode cells, Jour...
1972
Formation of Barrel Concretions around Methane Seepage Pathways in Upper Middle Eocene Shelf Sediments, Stone City Bluff, Texas
Jennifer K. Hendricks, Thomas E. Yancey, James E. Flis, Christopher J. Flis, Ethan L. Grossman
GCAGS Transactions
... are buffered from dissolution and carbonate can persist and be retained in the sediment. These conditions occur in the fine grained marine sediment layers...
2012
Clay Mineral Changes in Antarctic Deep-Sea Sediments and Cenozoic Climatic Events
Marian B. Jacobs
Journal of Sedimentary Research (SEPM)
.... 170, p. 1085-1087. MEHRA, O. P., AND M. L. JACKSON, 1960, Iron oxide removal from soils and clays by a dithionitecitrate system buffered with sodium...
1974
Distribution of Microborings Within Continental Margin Sediments of the Southeastern United States
Brian D. Edwards , Ronald D. Perkins
Journal of Sedimentary Research (SEPM)
... microboring generally requires fixation of the study samples in buffered formaldehyde at the time of collection. As the samples available to us...
1974
Genesis of Chlorite Pellets from Mesozoic Bedded Cherts of Sicily
Marco Leone, Rosario Alaimo, Salvatore Calderone
Journal of Sedimentary Research (SEPM)
... pellets were separated from samples of chert beds by means of a magnetic separator, and from the Fe-Mn carbonate samples by acetic acid buffered with sodium...
1975
The Occurrence and Chemical Composition of Recent Fe-Rich Mixed Carbonates in a River Bog
Dieke Postma
Journal of Sedimentary Research (SEPM)
... not to be buffered by the iron carbonate. In the oxidized zone, the pH generally ranges between 4.5 and 5.5. These lower pH values are the result of oxidation of some...
1977
Hydrology of Uranium Deposits in Calcretes of Western Australia
A. J. Gaskin, C. R. M. Butt, R. L. Deutscher, R. C. Horwitz, A. W. Mann
AAPG Special Volumes
... in a highly leached environment buffered by a complex set of factors including the presence of sufficient bicarbonate ion to prevent the deposition...
1981
Diagenetic Albitization of Detrital K-Keldspars in Jurassic, Lower Cretaceous and Tertiary Clastic Reservoir Rocks from Offshore Norway, II. Formation Water Chemistry and Kinetic Considerations
P. Aagaard , P. K. Egeberg , G. C. Saigal , S. Morad , K. Bjorlykke
Journal of Sedimentary Research (SEPM)
... will be buffered along the univariant equilibrium line; see Figure 3. During burial, the pore water will respond chemically by increasing aK+/aNa...
1990
Oxygen Isotopic Analysis of Diagenetic Quartz Overgrowths from the Brent Sands: A Comparison of Two Preparation Methods
J. F. Brint , P. J. Hamilton, R. S. Haszeldine, A. E. Fallick, S. Brown
Journal of Sedimentary Research (SEPM)
... (buffered to pH = 5) to remove carbonates (Jackson 1979). Each sample was then size separated (< 20, 20-50, 50-85, 85-160, 160-250, 250-500 and > 500 microns...
1991
Effects of Sulfate Reduction on CaCO3 Dissolution and Precipitation in Mixing-Zone Fluids
Ronald K. Stoessell
Journal of Sedimentary Research (SEPM)
... reduction are strongly pH buffered, requiring substantial amounts of CaCO3 dissolution and precipitation to reach equilibrium. The pH is locked into a narrow...
1992
Great Bahama Bank Aragonitic Muds: Mostly Inorganically Precipitated, Mostly Exported
John D. Milliman , Deborah Freile , Randolph P. Steinen , R. Jude Wilber
Journal of Sedimentary Research (SEPM)
... the banktop and the leeward slope also were analyzed. Algal samples were soaked in buffered H2O2 to remove organic matter and then oven-dried. Each sediment...
1993
Origin of Secondary Porosity and Cement Distribution in a Sandstone/Shale Sequence from the Frio Formation (Oligocene): Part 2. Aspects of Porosity Modification
G. K. Moncure, R. W. Lahann, R. M. Siebert
AAPG Special Volumes
...------------------------ at low concentrations because aluminum was buffered to low levels by the reaction of smectite to illite, an aluminum-consuming...
1984
A Method for the Determination of Nitrogen in Clays, with Application to the Burial Diagenesis of Shales: RESEARCH METHOD PAPER
Paul A. Schroeder , Ellery D. Ingall
Journal of Sedimentary Research (SEPM)
... and Levinson 1986). (5) Both iron oxide and hydroxide coatings are removed using a 0.3 M Na citrate bicarbonate solution (buffered). A solution...
1994
Multiple Authigenesis of K-Feldspar in Sandstones: Evidence from the Cretaceous Areado Formation, Sao Francisco Basin, Central Brazil
L.F. De Ros , G.N.C. Sgarbi , S. Morad
Journal of Sedimentary Research (SEPM)
... oxide removal from soils and clay by a dithionite citrate system buffered with sodium bicarbonate, in Swineford, A., ed., Clays and Clay Minerals...
1994
Carbonate Botryoids in Lower Devonian Amygdaloidal Basalts: Evidence for Precipitation of High-Magnesium Calcite from Heated and Volcanic CO2-Buffered Marine Waters
Denis Lavoie
Journal of Sedimentary Research (SEPM)
... waters would have been rapidly buffered and led to precipitation of 13C-depleted calcites. Magmatic CO2 is also recorded in the isotopic ratio...
1995
Assessing Mineralogical and Geochemical Heterogeneity in the Sub 63 Micron Size Fraction of Holocene Lime Muds
Julian E. Andrews, Socrates Christidis , Paul F. Dennis
Journal of Sedimentary Research (SEPM)
... for sieving was buffered to pH 8 with NaOH pellets to avoid selective dissolution of the metastable Mg-calcite (mean, 12 mol % MgCO3) and aragonite...
1997
Influence of Depth, Temperature, and Geologic Age on Porosity of Quartzose Sandstone
John C. Maxwell
AAPG Bulletin
... alkaline, highly buffered by contained salts, and hence probably behave similarly toward quartz through rather large changes in composition. Presumably...
1964