Microbial Kinetic Controls on Calcite Morphology in Supersaturated Solutions

Tanja Bosak, Dianne K. Newman

Journal of Sedimentary Research (SEPM)

... under an anaerobic atmosphere of 0.8 atm N2, 0.15 atm CO2, and 0.05 atm H2 in bicarbonate-buffered anaerobic G20 basal medium at 25°C...

Upper Cretaceous Shannon Sandstone Reservoirs, Powder River Basin, Wyoming: Evidence for Organic Acid Diagenesis? (1)

PAULA L. HANSLEY and VITO F. NUCCIO

AAPG Bulletin

... extensive dissolution of aluminosilicate grains. At the temperatures of deep Shannon reservoirs, alkalinity was buffered by organic acid anions so...

Meteoric Modification Of Early Dolomite And Late Dolomitization By Basinal Fluids, Upper Arbuckle Group, Slick Hills, Southwestern Oklahoma (1)

GUOQIU GAO , LYNTON S. LAND , and ROBERT L. FOLK

AAPG Bulletin

... dolomite samples are characterized by low delta{18}O values (-5.1 to -10.0 o/oo PDB), indicating postdepositional modification. Meteoric water, buffered...

Quartz Cementation in Sedimentary Basins

K. Bjorlykke , P. K. Egeberg

AAPG Bulletin

... the rate of quartz cementation by a factor of 30 to 300, depending on the pH of the pore water, which is assumed to be buffered by the silicate minerals...

Carbonate porosity creation by mesogenetic dissolution: Reality or illusion?

Stephen N. Ehrenberg, Olav Walderhaug, Knut Bjorlykke

AAPG Bulletin

... and buffered by carbonates, providing little opportunity for the preservation of significantly undersaturated water chemistry during upward flow, even...

CLASTIC-CARBONATE FACIES RELATIONSHIPS AND PALEOENVIRONMENTS IN UPPER ORDOVICIAN ROCKS OF NORTHEAST ALABAMA

Allan M. Thompson

Alabama Geological Society

.... This suggests that desiccation was less prolonged in these areas, and that these flats were more frequently flooded and buffered to relatively low Eh...

Upper Cretaceous Nannofossil Assemblages Across the Western Interior Seaway: Implications for the Origins of Lithologic Cycles in the Greenhorn and Niobrara Formations

Celeste E. Burns, Timothy J. Bralower

Special Publications of SEPM

... representative sample of the assemblage. The species pH-buffered water and then dried in a 40°C oven overnight. Samples were then roasted in a vacuum at 320°C...

Physiographic and Oceanographic Characteristics of Chezzetcook Inlet, Nova Scotia

David B. Scott

Atlantic Geology

..., the salinity patterns could change dramatically. This is not true in larger systems such as the Miramichi where changes are buffered by the large volumes...

Holocene Foraminiferal Distribution Patterns on the Shelf and Slope, Yakataga - Yakutat Area Northern Gulf of Alaska

Ronald J. Echols, John M. Armentrout

Pacific Section SEPM

... where the Van Veen grab proved ineffective. Immediately after collection, the samples were placed in jars containing a 5-1oi formalin solution buffered...

Effects Of Drying Techniques On Grain-Size Analyses of Fine-Grained Sediment

Leslie Keiser, Gerilyn S. Soreghan, Young Ji Joo

Journal of Sedimentary Research (SEPM)

... Scientific Publications, 404 p. Mehra, O.P., and Jackson, M.L., 1960, Iron oxide removal from soils and clays by a citrate–dithionite system buffered...

General Review of Salt Dome Geology

New Orleans Geological Society

... 87Sr/86Sr ratios (Posey, 1986). Strontium in salt dome cap rocks is buffered by strontium from the anhydrite. Anhydrite, calcite, and gypsum cap rocks...

Recent Marine Molluscs from Northeastern Quintana Roo, Mexico

Allan A. Ekdale

New Orleans Geological Society

... dredge at each sample site. The samples were retrieved from a wire basket on the dredge (see Fig. 1), preserved in buffered formalin and transferred...

De-Aromatized Hydrocarbon Fluids - Designed to Meet Evolving Public, Regulatory and Environmental Challenges for Fracturing Fluid Formulations

Daniel Bien, David G. Woods

Indonesian Petroleum Association

... this is an unselective process as the acid attacks the formation upon contact thus not penetrating deeply into the fractures as desired. The acid can be “buffered...

Meteoric Diagenesis and Dolomitization in Plio-Pleistocene Reef Terraces, Southern Dominican Republic

Yulaika Hernawati, Peter K. Swart, Donald F. Mcneill, James S. Klaus, Gregor P. Eberli

Indonesian Petroleum Association

... the origin of dolomite, the dolomitized bulk samples were treated with buffered acetic acid in order to separate dolomite (Hernawati, 2011...

Carbonate-Sediment Production by Parrot Fish and Sea Urchins on Caribbean Reefs: Reef Biota

John C. Ogden

AAPG Special Volumes

... fecal dry weight. Fish were collected by spear and preserved in 10% buffered formalin. Later their gut contents were broken down into organic, soluble...

Weathering of Yucatan Limestones: The Genesis of Terra Rosas

W. C. Isphording

New Orleans Geological Society

.... The net result is that in any system buffered for all values of pH below 8, Gardner concluded that gibbsite cannot form through the dissolution...

Review of Petroleum Exploration in Queensland During 1986

M. A. Randal

Petroleum Exploration Society of Australia (PESA)

... (mid-January) reports place it at about $US19.00. The Australian Import Parity Price (IPP) initially was buffered somewhat by the declining...

Charge Properties of Soils in Malaysia Dominated by Kaolinite, Gibbsite, Goethite and Hematite

J. Shamshuddin, Markus Anda

Geological Society of Malaysia (GSM)

... values were obtained by extrapolation ‡ The CEC was determined by ion adsorption in 1 N NH4OAc buffered at pH 7.0 § VC is variable charge generation from...

Bioremediation Methodology of Oil Wastes in CPI Sumatran Operations

Robert C. Bess, Dasmaji, Dafris Nasrun, M. Hariandja, C. D. Fuhr, Roger Kidder

Indonesian Petroleum Association

... containing 0.2 milliliters (ml) of Polybac-E and Sterile Phosphate Buffered Water (SPBW), Ph adjusted to 7.00. A 1.0 liter flask, containing Polybac-E...

Distribution of Living Benthonic Foraminifera as Indicators of Oceanographic Processes of the South Texas Outer Continental Shelf

Camille Hueni , Jane Anepohl Monroe , Joel Gevirtz , Richard Casey

GCAGS Transactions

... stain and buffered formalin. The bottles were sealed and shaken to insure mixing of sediment and preserving solution. Plankton samples were similarly...

A genetic explanation for the anhydrite–halite cyclic layers in the Middle Jurassic Louann Salt, U.S. Gulf Coastal Region

Douglas W. Kirkland

Journal of Sedimentary Research (SEPM)

... zone resulting from the intense solar radiation of summer buffered (overwhelmed) the coolness of the rising fingers. The warm summer temperature...

Characterization of Uranium Ores from the House-Seale Deposit, Catahoula Formation, Texas Coastal Plain

R. Stephen Fisher

GCAGS Transactions

... by a dithionite-citrate system buffered with sodium carbonate: 7th National Conf. on Clays and Clay Minerals, p. 317-327. Schwertmann, 1979, Dissolution methods...

Brizalina Lowmani, a Meroplanktonic Foraminiferan Useful as an Indicator of Shelfal Circulation and Eutrophication (with Comments on Biostratigraphy and Evolution)

Richard Casey , Camille Hueni , Ann Leavesley

GCAGS Transactions

... a solution of rose Bengal protoplasmic stain and buffered formalin. The bottles were sealed and shaken to insure mixing of sediment and preservation solution...

Carbon Dioxide and Organic Acids: Their Role in Porosity Enhancement and Cementation, Paleogene of the Texas Gulf Coast

Paul D. Lundegard, Lynton S. Land

Special Publications of SEPM

... will be buffered to very low values. Several workers have recently suggested that feldspar dissolution involves, at least in part, aluminum complexation...

Upper Cretaceous (Santonian-Lower Campanian) Foraminiferal Biostratigraphy of the Nanaimo Group, Subsurface of the Parksville Area, Eastern Vancouver Island

Alan McGugan

CSPG Bulletin

..., buffered by sodium carbonate to raise the ph and avoid damage to calcareous microfossils, was prepared and heated to boiling. The dry crushed samples...