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The AAPG/Datapages Combined Publications Database

Showing 2,969 Results. Searched 200,673 documents.

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Stratigraphy and Sedimentology of the Kincaid Formation, Midway Group (Paleocene), Upper Rio Grande Embayment, Texas

Edward C. Roy, Jr.

GCAGS Transactions

... identical (including burrowing) to that into which the channels have been cut, except that phosphatic pebbles are present in the channel bottoms...

1984

Wetumpka Impact Structure’s Resurge Chalk Deposits—Insights from X-Ray Computed Tomography

James K. Markin, David T. King Jr.

GCAGS Transactions

... This uppermost unit is a phosphatic chalk with modern diagenetic overprinting of caliche nodules that has been previously proposed as a secular deposit...

2012

Monterey Formation Overview and Context for New Research; #51694 (2022)

Richard J. Behl

Search and Discovery.com

... •Phosphate •Detritus (clay, silt & sand) High diagenetic potential of silica, carbonate, phosphate & organic matter Diatoms Calcareous Microfossils...

2022

Diagenetic Controls on Reservoir Character of the Lower Permian Wolfcamp and Bone Spring Formations in the Delaware Basin, West Texas

Arwin Dobber, Robert Goldstein

Unconventional Resources Technology Conference (URTEC)

... burial and include the formation of phosphatic and calcitic concretions, pyrite framboids, replacive dolomites, compacted fractures...

2020

Black Shales and Phosphorites, Results of Differential Diagenetic Evolution of Organic Matter in the Oulad Abdoun-Timahdit Sedimentary Basin (Morocco)

S. Benalioulhaj, J. Trichet, N. Benalioulhaj, J. Lucas, B. C. Schreiber, R. P. Philip

Special Publications of SEPM

... in the pliospl~nte-richstrnt:l the organic matter is in two forms: hu~iiiccompounds inside the phosphatic grailis and kerogcn in the matrix. Humic compounds...

2000

Facies Architecture of the Permian Park City Formation, Utah and Wyoming: Implications for the Paleogeography and Oceanographic Setting of Western Pangea

Michael T. Whalen

Rocky Mountain Section (SEPM)

... lithologically depending on their paleogeographic location along me ramp. Inner ramp cycles begin with a phosphatic condensed section and/or shales deposited...

1996

Differential weathering of diagenetic concretions and the formation of Neoproterozoic annulated discoidal structures

Maxwel F. Schwid, Shuhai Xiao, Morrison R. Nolan, Zhihui An

PALAIOS

... rings because of exfoliation or differential weathering (see discussion below). Microfossils and algal fossils are present in the phosphorite...

2021

Synsedimentary Fracturing, Fluid Migration, and Subaqueous Mass Wasting: Intrastratal Microfractured Zones in Laminated Diatomaceous Sediments, Miocene Monterey Formation, California, U.S.A.

Kurt A. Grimm , Daniel L. Orange

Journal of Sedimentary Research (SEPM)

... biostratigraphy for the Monterey Formation of California, in Casey, E., and Barron, J., eds., Siliceous Microfossils and Microplankton of the Monterey...

1997

Relationships Between Silica Diagenesis, Deformation, and Fluid Flow in Monterey Formation Cherts, Santa Maria Basin, California

Richard J. Behl

Pacific Section SEPM

... of microfossils and grains collapses, or as the internal pore spaces are filled with silica cement. In diatomaceous sediments, for example, porosity can...

1998

Formation and Evolution of Phosphorite Grains and Nodules on the Namibian Shelf, From Recent to Pleistocene

G. N. Baturin

Special Publications of SEPM

...: Phosphatic grains ant1 nodules related to recent diato~ii oozes on tlie inncr Namibian shelf as well as Pleistocene grnins and nodules f'ro111...

2000

UPPER CRETACEOUS SERIES IN CENTRAL ALABAMA

Charles W. Copeland

Alabama Geological Society

... in warm shallow seas, and Foraminifera, Ostracoda and other microfossils comprise a large percentage of the chalk. Thin-shelled mollusks are abundant...

1972

Geology of the Temblor Formation, Western San Joaquin Basin, California; Frontmatter, Introduction and Roadlogs

Steve A. Graham

Pacific Section SEPM

... retain their usefulness in sandy sections devoid of microfossils, so the dual biostratigraphic and lithostratigraphic usage of "Temblor" and "Vaqueros...

1985

Petrography and Derivation of Jurassic-Cretaceous Clastic Rocks, Southern Rocky Mountains, Canada

June E. Rapson

AAPG Bulletin

... of cryptocrystalline phosphate of low birefringence are present. The most commonly occurring phosphatic rock type is a microcrystalline chert (Pl. II...

1965

Carbonate-Phosphate Competition in the Negev Phosphorites (Southern Israel): A Microstructural Study

David Soudry

Special Publications of SEPM

.... Phosphatic Carbonate Unit C. p p p p p ..... t(I') o 0. klarl Marl )'J)'J Massive pelletal phosphorite 0000 )'J)'J @ 0000 0000...

2000

Post-Tampa, Pre-Chipola Sediments Exposed in Liberty, Gadsden, Leon and Wakulla Counties, Florida

J. E. Banks , M. E. Hunter

GCAGS Transactions

..., W. H., 1969, Late middle Eocene to Recent planktonic foraminiferal biostratigraphy; Proc. 1st Int'l. Conf. Planktonic Microfossils, v. 1, pp. 199-421...

1973

Conodont Biostratigraphy of the Lower Triassic Mackenzie Dolomite Lentil, Sulphur Mountain Formation in the Cadomin Area, Alberta

Rachel K. Paull, Richard A. Paull, Thomas S. Laudon

CSPG Bulletin

.... Other microfossils present in the insoluble residues include small quantities of phosphatic fish teeth, several varieties of gastropod steinkerns...

1997

The Britton Notopocorystes Assemblage: An Eagle Ford Decapod Assemblage from the Cretaceous of North-Central Texas

Gale A. Bishop , Nancy A. Brannen , Lloyd E. Hill , John P. Meyer , Arlene J. Pike , Chris Sampson

GCAGS Transactions

... in parts of phosphatic concretionary sheets which were apparently initiated by mineralization of burrow mazes, which then rapidly oxidize to hematitic...

1992

Geology of Eastern Part of Avalon Peninsula, Newfoundland--A Summary: Chapter 9: Southeastern Border of the Orogenic Belt

W. D. Bruckner

AAPG Special Volumes

... been exploited on a large scale. Some beds, especially in the Wabana Group, contain phosphatic nodules; detrital micaceous minerals are abundant...

1969

Regional Geologic Model for Hydrocarbon Exploration of Oligo-Miocene Carbonates, Southeast Mexico

Joan M. Spaw, Joseph Serra-Kiel, Carles Fernandez, Jose Antonio Berlanga Garcia, Andrew Horbury

GCAGS Transactions

... size), sedimentary structures, biogenic structures, geometry, invertebrate fossils and microfossils (incorporating larger foraminifera data...

2005

Low-Thermal-Maturity (<0.7% VR) Mudrock Pore Systems: Mississippian Barnett Shale, Southern Fort Worth Basin

Robert M. Reed, Robert G. Loucks

GCAGS Journal

... grains (probably rutile) have been observed but are not volumetrically important. Sampling avoided minor concentrated phosphatic layers. However, some...

2015

Upper Paleozoic Succession

Harold J. Bissell

Utah Geological Association

... limestone and equivalent strata offers few difficulties when endothyroids (Zeller, 1957) are considered, or when these microfossils as well as megafossils...

1959

Cretaceous and Tertiary Reef Formations and Associated Sediments in Middle East

F. R. S. Henson

AAPG Bulletin

... and other microfossils, many of which can be recognized, at least generically, in sections. FOOTNOTE 4. Sections which are not required...

1950

Authigenic Carbonate Concretions and Host Shales from the Shimanto Belt, Southwestern Japan: Implications for Carbonate Precipitation

Kenichiro Sugitani , Ryuichi Sugisaki , Mamoru Adachi

Journal of Sedimentary Research (SEPM)

...-rich sediments: Nature, v. 269, p. 209-213. KANISAWA, S., AND EHIRO, M., 1986, Occurrence and geochemical nature of phosphatic rocks and End_Page...

1995

Evidence of Unconformity at Top of Trenton Limestone in Indiana and Adjacent States

Lawrence F. Rooney

AAPG Bulletin

... Indiana; knife-sharp contact between the Trenton Limestone and the overlying shale; concentration of pyrite, angular chert, phosphatic grains...

1966

New Upper Paleozoic and Lower Mesozoic Stratigraphic Units, Central and Western Brooks Range, Alaska

C. G. Mull , I. L. Tailleur , C. F. Mayfield , Inyo Ellersieck , S. Curtis

AAPG Bulletin

... the Lisburne Group; some beds are phosphatic, and mafic extrusive igneous rocks occur in a few areas. Paleontologic data suggest an Early Mississippian...

1982

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