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The AAPG/Datapages Combined Publications Database
Showing 675 Results. Searched 200,357 documents.
Diagenesis of Calcite Cement in Frio Formation Sandstones and its Relationship to Formation Water Chemistry
F. Leo Lynch, Lynton S. Land
Journal of Sedimentary Research (SEPM)
... for samples from fault block 2. is consistent with calcite dissolution and reprecipitation (recrystallization) in a fluid-buffered system increasingly...
1996
Dolomite formation in the Miocene Kardiva platform, Maldives archipelago: a tale of closed-system and open-system dolomitization by current pumping of seawater
Juan Carlos Laya, David A. Budd, Kieron Prince,,, Carl Jacquemyn, Cameron Manche
Journal of Sedimentary Research (SEPM)
..., C.M.A., John, C.M., Krevor, S., and Najorka, J., 2019, Rock-buffered recrystallization of Marion Plateau dolomites at low temperature evidenced...
2025
Chemical Properties of Subsurface Brines
Jeffrey S. Hanor
Special Publications of SEPM
... to be buffered in part by an approach toward thermodynamic equilibrium with multi hase, sedimentary, silicate-carbonate phase assemblages ConsidPer pore fluids...
1988
Calcareous nannofossils from Eastbourne (southeastern England) and the paleoceanography of the Cenomanian Turonian Boundary interval
Christian Linnert, Jörg Mutterlose, Rory Mortimore
PALAIOS
... sample preparation methods. We used an ultrasonic bath with tap water buffered with ammonia (pH ,8.5) to disintegrate the scratched raw samples...
2011
Influence of Climate and Dolomite Composition on Dedolomitization: Insights from a Multi-Proxy Study in the Central Oman Mountains
Veerle Vandeginste, Cedric M. John
Journal of Sedimentary Research (SEPM)
... powders by reacting the sample with a buffered solution composed of 5% acetic acid with ammonium acetate added to obtain a pH of 5. A 1 or 2 gram aliquot...
2012
Biogenic Magnetite: Authigenesis and Diagenesis With Changing Redox Conditions in Lake Greifen, Switzerland
Teresa B. Hawthorne, Judith A. Mckenzie
Special Publications of SEPM
... was added to disperse the clay fractions Each solution was n through a magnetic extraction line containing a samar buffered to fraction Within...
1993
The Integrity of δ18O Records in Precambrian Carbonates: A Mesoproterozoic Case Study
Tracy D. Frank, Timothy W. Lyons
Special Publications of SEPM
... concentrations in radial ooids intergranular system to be buffered by the composition of the such that near primary compositions were retained diagenetic...
2000
Climate-Controlled Early Dolomite, Late Triassic Cyclic Platform Carbonates, Hungary
Anna Balog , J. Fred Read , Janos Haas
Journal of Sedimentary Research (SEPM)
... from the original marine sediment in a rock-buffered system (Figs. 11, 12). They resemble most modern dolomite 13C signatures that have not been...
1999
Open or closed geochemical systems during diagenesis in sedimentary basins: Constraints on mass transfer during diagenesis and the prediction of porosity in sandstone and carbonate reservoirs
Knut Bjorlykke, Jens Jahren
AAPG Bulletin
... between shales and sandstones is also limited because the pore water is, in most cases, buffered by the same minerals so that the concentration...
2012
Geochemical interactions of shale and brine in autoclave experiments—Understanding mineral reactions during hydraulic fracturing of Marcellus and Eagle Ford Shales
Jiemin Lu, Patrick J. Mickler, Jean-Philippe Nicot, Wanjoo Choi, William L. Esch, and Roxana Darvari
AAPG Bulletin
..., doi:10.1016/0016-7037(91)90005-P. Nicholson, R. V., R. W. Gillham, and E. J. Reardon, 1988, Pyrite oxidation in carbonate-buffered solution: I...
2017
Origin of giant Ordovician cavern reservoirs in the Halahatang oil field in the Tarim Basin, northwestern China
Zhanfeng Qiao, Anjiang Shen, Shaonan Zhang, Anping Hu, Feng Liang, Xianying Luo, Guanming Shao, Yongsheng Wang, Jianxin Zhao, Peng Cao, and Lei Jiang
AAPG Bulletin
... precipitated at the near-surface environment, with their geochemistry signals buffered by matrix carbonates. By contrast, some MCs and SFCs have slightly...
2023
Diagenetic Implications of Stylolitization in Pelagic Carbonates, Canterbury Basin, Offshore New Zealand
Veerle Vandeginste, Cédric M. John
Journal of Sedimentary Research (SEPM)
... infills at Site U1352 shows no evidence that the stylolites acted as conduits for diagenetic fluids, unless if the fluid was host-rock buffered...
2013
Microbial ecology and biofilms in the taphonomy of soft tissues
Rudolf A. Raff, Mary E. Andrews, Ronald L. Pearson, F. Rudolf Turner, Sebastian T. Saur, Daniel C. Thomas, Justin L. Eagan, Elizabeth C. Raff
PALAIOS
... of bacteria: the pH remained stable in controls in which embryos were incubated in seawater buffered to the indicated pH without added bacteria. Experiments...
2014
Contact metamorphism of the Black Hawk Zn-Pb-Cu deposit, Hancock County, Maine
Martin G. Yates, Frank H. Howd
Atlantic Geology
... indicates buffered f 0 2-fS 2conditions near the triple point at / 0 2=-16.1 and /S 2=-1.9 (Fig. 7). The widespread occurrence of rutile in the ores also...
1988
Paleoecological aspects of Western United States nonmarine ostracods during the Eocene-Oligocene transition: the early Oligocene faunas of the Renova Formation, southwestern Montana
Lucas S. Antonietto, Lisa E. Park Boush, Roy E. Plotnick, Alycia L. Stigall
PALAIOS
..., likely inhabited fairly stable small lakes, characterized by arboreal surroundings reminiscent of forests in highland regions that were buffered...
2020
Geological and Chemical Conditions of Formation of Red Beryl, Wah Wah Mountains, Utah
Jeffrey D. Keith, Eric H. Christiansen, David G. Tingey
Utah Geological Association
... concentrations in the red beryl rhyolite are buffered by the presence of K-feldspar and early-formed topaz. The CaO content of the rhyolite (<0.01 to 0.52...
1994
Separation of siderite from calcite by differential reaction with dilute ethanoic acid: mineralogical and isotopic (δ13C, δ18O) effects
Stephen F. Crowley, Thomas Hughes
Journal of Sedimentary Research (SEPM)
... analysis is based on the exploitation of differing decomposition rates in contact with dilute or buffered organic acid solvents (Babcock et al. 1967...
2024
Recent Foraminifera Around Petroleum Production Platforms on the Southwest Louisiana Shelf
Jo Ann Locklin, Rosalie F. Maddocks
GCAGS Transactions
.... Six percent MgCl2 was added to the sediment for 10 minutes to anesthetize the animals. The sample was preserved in five percent buffered formalin...
1982
Provenance of Mudstones from Two Ordovician Foreland Basins in the Appalachians
C. Brannon Andersen
Special Publications of SEPM
... a sediments sediments acid to carbon = 5.0 Na acetate buffered acetic acid to dissolve carbon5 0 Na-acetate-buffered that this treatment had no ates...
1995
Influence of regional geology and hydrogeology on river habitat quality: examples from Mill Brook and Elderkin Brook, Kings County, Nova Scotia
Ian S. Spooner, Heather Fenton, Melody Myers
Atlantic Geology
... provincial drinking water standards and are considered acceptable for the target species. Elderkin Brook is well buffered in all reaches w ith...
1998
Causes of Multiple Magnetizations in the Devonian Upper Member, Wabamun Group, Alberta, Canada: Fluid Flow and Diagenesis?
M. T. Cioppa, I. S. Al-Aasm, D. T. A. Symons, K. P. Gillen
AAPG Special Volumes
... of about 4, but the 13C values seem to be rock buffered (Figure 3A). The isotopic values of this dolomite also fall very close to, or overlap with, those...
2004
Diagenesis, Reservoir Quality, and Production Trends of Doig Formation Sand Bodies in the Peace River Area of Western Canada
Richard G. Harris, R. Marc Bustin
CSPG Bulletin
... between 80-100°C, the system is externally buffered by carboxylic acid anions (Surdam et al., 1984). At temperatures greater than 100°C, carboxylic...
2000
Sediment Sources and Clay Mineral Distributions Off the Oregon Coast
Robert Karlin
Journal of Sedimentary Research (SEPM)
... by Baker (1973) on cores from the Washington margin. Samples of 1-2 cm3 from each core were treated with buffered hydrogen peroxide (pH 7.0...
1980
Community Succession in a Devonian Patch Reef (Onondaga Formation, New York)--Physical and Biotic Controls
Loretta Ann Williams
Journal of Sedimentary Research (SEPM)
... times, the outheastern portion being buffered from the prevailing currents and, therefore, perhaps somewhat stagnant. Perturbations in direction...
1980
Silica Diagenesis, I. Solubility Controls
Loretta Ann Williams , George A. Parks, David A. Crerar
Journal of Sedimentary Research (SEPM)
... amorphous silica aged in seawater and NaC1 solutions. She observed 20% loss of solubility carbonate-buffered, 50% loss of surface area, reduction...
1985