Forcing mechanisms on Late Cretaceous carbonate sedimentation: the Austin Chalk Group of central Texas

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Integration of microfacies analysis, inorganic geochemical data and hyperspectral imaging to unravel mudstone depositional and diagenetic processes in two cores from the Triassic Shublik Formation, northern Alaska

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Abstract: Depositional Lithofacies and Diagenetic Overprints of Pennsylvanian Lower Cisco Shelf Margin Carbonates, Wolf Flat Field, Motley Co., Texas; #90250 (2016)

Olakemi Afuape, Robert C. Trentham

Search and Discovery.com

...’s lithofacies and diagenesis relationship to porosity. Eight lithofacies types were identified in the reservoir section that is overlain by black phosphatic...

The Chicxulub Impact and K-T Mass Extinction in Texas

Gerta Keller

Bulletin of South Texas Geological Society

...-T boundary stratotype section at El Kef, Tunisia. (c) the absence of significant tectonic activity, (d) excellent preservation of microfossils, and (e...

MACROSCOPIC STRUCTURES IN THE 1.1 Ga CONTINENTAL COPPER HARBOR FORMATION: CONCRETIONS OR FOSSILS?

ROSS P. ANDERSON, LIDYA G. TARHAN, KATHERINE E. CUMMINGS, NOAH J. PLANAVSKY, MARCIA BJØRNERUD

PALAIOS

... of life. Recently, however, eukaryotic microfossils from a putative terrestrial lake system characterized by intermittent subaerial exposure—the 1.2...

Phosphatic Rocks and Manganese Crusts from Seamounts in the Eez of Kiribati and Tuvalu, Central Pacific Ocean

V. Purnachandra Rao, W.C. Burnett

Circum Pacific Council Publications

...Phosphatic Rocks and Manganese Crusts from Seamounts in the Eez of Kiribati and Tuvalu, Central Pacific Ocean V. Purnachandra Rao, W.C. Burnett...

Evolution of the Tertiary La Honda Basin, Central California

Richard G. Stanley

Pacific Section of AAPG

... Member consists of dark-brown to black, phosphatic, organic-rich shale that was deposited in low-oxygen environments at lower middle bathyal to abyssal...

Pennsylvanian System of the Mid-Continent

Carl C. Branson

AAPG Special Volumes

..., Oklahoma: Oklahoma Geol. Survey Bull. 57, 184 p. Wilson, L. R., and Hoffmeister, W. S., 1958, Plant microfossils in the Cabaniss coals of Oklahoma...

Organic Carbon Burial and Phosphogenesis in the Antler Foreland Basin: An Out-of-Phase Relationship During the Lower Mississippian

Matthew R. Saltzman

Journal of Sedimentary Research (SEPM)

... shelf (Delle Phosphatic Member). The 13C excursion, which appears global in scope, is marked by peak values of +7.3‰ in western Wyoming, which...

Unconformities in Upper Cretaceous Series of Texas

Lloyd W. Stephenson

AAPG Bulletin

... re-worked in the base of an overlying formation. 2. A thin layer of phosphatic nodules and phosphatic fossil casts of organisms. This layer...

Aquifer Mineralogy and Natural Radionuclides in Groundwater - The Lower Paleozoic of Central Texas

Yongje Kim , Thomas T. Tieh , Ernest B. Ledger

GCAGS Transactions

.... Fission-track imaging shows that U occurs predominantly in: (1) phosphatic fossil fragments and intraclasts, especially in the Cap Mountain; (2) thin...

Synsedimentary Lacustrine Phosphorites from the Pliocene Glenns Ferry Formation of Southwestern Idaho

Krystyna Swirydczuk, Bruce H. Wilkinson, Gerald R. Smith

Journal of Sedimentary Research (SEPM)

... R. Smith 1981 Vol. 51 No. 4. (December), Numerous laterally extensive, thin fresh-water lacustrine phosphatic horizons characterize nearshore facies...

Cretaceous to Pleistocene Stratigraphy and Paleogeography, Northern Yukon and Northwestern District of Mackenzie

James Dixon

CSPG Bulletin

.... The mid-Cretaceous flysch and phosphatic ironstone sequence, northern Richardson Mountains, Yukon Territory. Geological Survey of Canada, Paper...

The Belloy Formation (Permian), Peace River Area, Northern Alberta and Northeastern British Columbia

I. H. Naqvi

CSPG Bulletin

... phosphatic chert-conglomerates, and frequent facies changes, suggest many transgressive and regressive sedimentation phases during the Permian time. Rocks...

Revisiting the origins of Clayton sand bodies at the K-Pg transition, Moscow Landing, western Alabama: stratigraphic relations, sedimentology, and ichnology

Charles E. Savrda

PALAIOS

... quartz), age-diagnostic microfossils, and/or geochemical signals (e.g., Officer and Drake 1983; Pospichal et al. 1990; Rodr´guez-Tovar and Uchman 2006...

Interpretation of the Silurian Diana Limestone, Toquima Range, Central Nevada, and Its Paleogeographic Implications: Evidence from Mixed Conodont Faunas, Carbonate Petrology, and Stratigraphic Relationships

W. Britt Leatham

Pacific Section SEPM

... the subjacent Antelope Valley, he designated a thin, lenticular, phosphatic grainstone as a "key marker" between the two formations and suggested...

Modern Approaches in Source-Rock Evaluation

Douglas W. Waples

Rocky Mountain Association of Geologists

... kerogen particles, usually recognizable microfossils. The techniaue is probably more subjective than vitrinite reflectance, but makes maximum use...

Facies and Sequence Stratigraphy of the Nanushuk River Section, Carboniferous Lisburne Group, Central Brooks Range, Alaska

Jesse Garnett White

West Texas Geological Society

... Professional Paper 884, 29 p. Armstrong, A.K., and B.L. Mamet, 1977, Carboniferous Microfacies, Microfossils, and Corals, Lisburne Group, Arctic Alaska: USGS...

THE STRATIGRAPHY OF SINCO FIELD

ERIMAR VON DER OSTEN

Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)

... and microfossils it has yielded. The middle sandy portion of the Escandalosa formation constitutes one of the two oil-bearing horizons of Sinco field...

Outline of Diagenesis in the Monterey Formation Examined Laterally Along the Santa Barbara Coast, California

Caroline M. Isaacs

Pacific Section of AAPG

... and diatomaceous, whereas rocks at Gaviota Beach are predominantly hard and porcelaneous. None-theless, the complex sequence of calcareous, phosphatic...

Stratigraphy of the Lower Triassic Dinwoody Formation in the Wind River Basin Area, Wyoming

Richard A. Paull, Rachel K. Paull

Wyoming Geological Association

... shale. Variable amounts of carbonate, sandstone, gypsum, and claystone are also present. Marine bivalves, gastropods, phosphatic brachiopods (Lingula...

Mississippian Dolomites from Lisburne Group, Killik River, Mount Bupto Region, Brooks Range, Alaska

Augustus K. Armstrong

AAPG Bulletin

... above the base and are composed of dark-gray phosphatic dolomite with nodular dark-gray chert in beds 1-3 ft thick. Some beds have zones...

High-Resolution Dating of Cenozoic Sediments from Northern North Sea Using 87Sr/86Sr Stratigraphy

Y. Rundberg , P. C. Smalley

AAPG Bulletin

... or phosphatic fossil material. Because the fossil need not be biostratigraphically important, a sufficient sample usually can be obtained from most marine...

Chapter 5: Parasequences

K. M. Bohacs, O. R. Lazar, T. M. Demko

AAPG Special Volumes

..., pyrite, and dolomite nodules are more common in more proximal areas, whereas phosphatic and chert nodules tend to occur in distal areas (e.g., Kastner et...

Stratigraphy of the West Side Southern San Joaquin Valley

Charles D. Foss, Robert Blaisdell

Pacific Section of AAPG

... in the Button Bed sands. The Molluscan assemblages, referable to the Molluscan “Turritellaocoyana” zone, as well as some of the microfossils found...