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The AAPG/Datapages Combined Publications Database

Showing 22,492 Results. Searched 200,625 documents.

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A New Unified Model For Cave Pearls: Insights from Cave Pearls in Carlsbad Cavern, New Mexico, U.S.A.

Leslie A. Melim, Michael N. Spilde

Journal of Sedimentary Research (SEPM)

..., the documentation of microbial and authigenic clay laminae in cave pearls suggest any dark and/or organic-rich layer in a speleothem should be thoroughly...

2018

Petrology, Provenance and Silica Diagenesis of the Penrith Sandstone (Lower Permian) of Northwest England

Brian Waugh

Journal of Sedimentary Research (SEPM)

... replacement in sedimentary rocks: Geol. Soc. America Bull., v. 73, p. 237-242. WALKER , T. R., 1967, Formation of red beds in modern and ancient deserts: Geol...

1970

Spherulites in Calcrete Laminar Crusts: Biogenic CACO3 Precipitation as a Major Contributor to Crust Formation

Eric P. Verrecchia , Pierre Freytet , Karin E. Verrecchia, Jean-Louis Dumont

Journal of Sedimentary Research (SEPM)

..., and inherited or new tiny spherulites with the mucilaginous mat of cyanobacteria, which traps all of this material. An organo-micritic layer forms...

1995

Chalk Dolomitization Beneath Localized Subsiding Tertiary Depressions in a Marginal Marine Setting in the Paris Basin (France)

Medard Thiry, Franck Hanot,, Catherine Pierre

Journal of Sedimentary Research (SEPM)

... poorly understood. Many models have been presented to account for replacement dolomite (Land 1985; Purser et al. 1994). It appears that dolomite can...

2003

Silica in Sediments of the Upper Paleozoic of the Cordilleran Area

Harold J. Bissell

Special Publications of SEPM

..., Pennsylvanian and Permian ages in thin beds, concretions, irregularly-shaped masses (blebs, "gobs," and nodules), and as replacement of fossils...

1959

Water Clarity Near Oil Production Platforms on the Louisiana Continental Shelf and the Source of the Turbid Bottom Water Layer

George M. Griffin

GCAGS Transactions

...Water Clarity Near Oil Production Platforms on the Louisiana Continental Shelf and the Source of the Turbid Bottom Water Layer George M. Griffin...

1978

Seismic Weathered or Aerated Surface Layer

O. C. Lester, Jr.

AAPG Bulletin

...Seismic Weathered or Aerated Surface Layer O. C. Lester, Jr. 1932 1230 1234 16 12. (December) The existence of a comparatively thin surface layer...

1932

-- no title --

user

Search and Discovery.com

...user Reprocessing the East Coast Canada Stonehouse Survey with 3D SRME and Hybrid Layer Tomography PreSDM Todd Mojesky1, Ali Karagül1, Bill Goodway2...

Unknown

ABSTRACT: The biostratigraphy of the Middle Miocene-Pliocene deposits of the Tamans depression (the Black Sea) according to Ostracoda; #90109 (2010)

Dykan Natalia

Search and Discovery.com

... dorsoarcuata. The zone is divided into two subzones. The subzone Caspiocypris labiata-Bacunella dorsoarcuata (the base of the layer) is determ ined...

2010

-- no title --

user

Search and Discovery.com

...user Reprocessing the East Coast Canada Stonehouse Survey with 3D SRME and Hybrid Layer Tomography PreSDM Todd Mojesky1, Ali Karagül1, Bill Goodway2...

Unknown

Conventional Traps in Unconventional Reservoir Rocks in Northern Japan; #20179 (2012)

Takashi Tsuji, Amane Waseda, and Satoru Yokoi

Search and Discovery.com

... porcelanite sustains good reservoir quality within a one thousand meter interval below the transformation boundary. If a clay-rich layer is interbedded...

2012

A New Approach for Production Forecasting from Individual Layers in Multi-Layer Commingled Tight Gas Reservoirs

Katarina Van Der Haar (nee Kosten), Manouchehr Haghighi

Australian Petroleum Production & Exploration Association (APPEA) Journal

...A New Approach for Production Forecasting from Individual Layers in Multi-Layer Commingled Tight Gas Reservoirs Katarina Van Der Haar (nee Kosten...

2022

Aragonite Crystal Fans In Neoproterozoic Cap Carbonates: A Case Study From Brazil and Implications For the Post–Snowball Earth Coastal Environment

Lucieth C. Vieira, Anne Nédélec, Sébastien Fabre, Ricardo I. F. Trindade, Renato Paes de Almeida

Journal of Sedimentary Research (SEPM)

..., but at some places (SA and TA) the crystal terminations truncate the lime mudstone bed and intersect the base of the upper crystal layer (arrow in Fig...

2015

Diagenetic Aspects, Sandholdt Member, Miocene Monterey Formation, Santa Lucia Mountains, California: Implications for Depositional and Burial Environments

K. A. Mertz Jr.

Pacific Section SEPM

...-poor samples; (2) dolomite occurs by replacement of host shales, apparently along beds that are somewhat more calcite-rich, and relatively less...

1984

The Middle Proterozoic Mescal Paleokarst, Central Arizona, U.S.A.: Karst Development, Silicification, and Cave Deposits

Steven J. Skotnicki, L. Paul Knauth

Journal of Sedimentary Research (SEPM)

... stratigraphy while the remaining carbonate underwent nearly complete replacement by secondary silica phases. Silicified collapse breccias, cave-filling...

2007

Early Diagenetic Concretions Associated with Intrastratal Shrinkage Cracks in an Upper Proterozoic Dolomite, Tasmania, Australia

Clive R. Calver, Peter W. Baillie

Journal of Sedimentary Research (SEPM)

... with a relatively thick siltstone layer (Fig. 3a). The thin, crumpled dykes show the most intense folding where they transect mudstone-rich intervals; where...

1990

A Compositional Classification For Grain Assemblages In Fine-Grained Sediments and Sedimentary Rocks

Kitty Milliken

Journal of Sedimentary Research (SEPM)

... replacement, and fracturing (Milliken 2004; Milliken et al. 2012a). Again, discrimination of the products of diagenetic alteration can be accomplished...

2014

Diagenesis of Sandstones: Processes and Problems

Harvey Blatt

Wyoming Geological Association

... the CO3=/HCO3– ratio in underground waters. This is accomplished by increasing either temperature or pH. Replacement relationships between calcite...

1966

Phosphatic Rocks on the Western Margin of South Africa

Gavin F. Birch

Journal of Sedimentary Research (SEPM)

... phosphorous and calcium carbonate to the sea floor for the replacement of lime mud (micrite) to form carbonate apatite (francolite) cement. Thus all...

1979

Organic and Inorganic Metamorphism in the Taveyannaz Sandstone of the Swiss Alps and Equivalent Sandstones in France and Italy

Pierre J. Stalder

Journal of Sedimentary Research (SEPM)

... and identification of mixed-layer clays in sedimentary rocks: Am. Mineralogist, v. 41, p. 202-221. WEAVER, CH. E., 1967, The significance of clay-minerals...

1979

Recrystallization in Quartz Overgrowths

Robert H. Goldstein, Carlos Rossi

Journal of Sedimentary Research (SEPM)

... contain an internal bitumen layer. Under SEM-CL the overgrowths show a rather complex internal pattern. Three major CL zones, termed Q1, Q2, and Q3...

2002

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