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The AAPG/Datapages Combined Publications Database
Showing 2,925 Results. Searched 195,689 documents.
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
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
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
Stratigraphy and Depositional Environments of the Pawnee Limestone, Middle Pennsylvanian (Desmoinesian), in Mid-Continent North America and Equivalent Strata (Oologah Limestone) in Northern Oklahoma
Rex C. Price
Tulsa Geological Society
... culminated in deposition of the widespread marine black, fissile and phosphatic Anna Shale. The Pawnee regressive sequence is interrupted by a second...
1984
Chapter 6: Parasequence Sets and Depositional Sequences
K. M. Bohacs, O. R. Lazar, J. D. Ottmann
AAPG Special Volumes
..., Utah. (C) Mississippian (Chesterian) Barnett Shale, a phosphatic argillaceous-siliceous-carbonaceous mudstone deposited in a marine-shelfal environment...
2022
Geologic Occurrence, Paleogeography, and Resources of Phosphate Rock in the Andean Region
Richard P. Sheldon, William C. Burnett, Victor Ricalde R.
Circum Pacific Council Publications
..., are discussed below. QUATERNARY PHOSPHORITES Phosphatic nodules, slabs, and pellets commonly occur along the outer continental shelf and upper slope...
1990