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Showing 2,975 Results. Searched 201,044 documents.
Composition of Sediments from the Experimental Mohole Project (Guadalupe Site)
K. J. Murata, R. C. Erd
Journal of Sedimentary Research (SEPM)
..., but they suggest that the fluorine content of the non-phosphatic part of the sediments falls within the limits of 0.04 and 0.07 percent F, on a carbonate-free basis...
1964
Chapter 3 - Grains: Rock Fragments (Lithic Fragments)
Dana S. Ulmer-Scholle, Peter A. Scholle, Juergen Schieber, Robert J. Raine
AAPG Special Volumes
... phosphatic) that formed penecontemporaneously within the depositional setting of the host sediment (as opposed to having been eroded and transported...
2014
Stratigraphic Details of Lower Mississippian Rocks of Northeastern Utah and Southwestern Montana
F. D. Holland, Jr.
AAPG Bulletin
... occurrence of a phosphatic shale member at the base of the Brazer ^hellip," and stated (1949, p. 31) that the Brazer is Meramecian and possibly Chesterian...
1952
Upper Ordovician Stratigraphy in Eastern Interior Region
Allan M. Gutstadt
AAPG Bulletin
... the Maquoketa shale with an intervening layer perhaps one inch in thickness, which contains large numbers of black phosphatic nodules imbedded in red...
1958
High-Resolution Sequence Stratigraphy of the Upper Cretaceous Tocito Sandstone: The Relationship Between Incised Valleys and Hydrocarbon Accumulation, San Juan Basin, New Mexico
David C. Jennette, Clive R. Jones, John C. Van Wagoner, Jeff E. Larsen
AAPG Special Volumes
... and trough cross bedding. Iron-cemented shale rip-up clasts, quartz and phosphatic pebbles, sharks teeth, Inoceramus and oyster shell fragments also...
1991
Reciprocal Lowstand Clastic and Highstand Carbonate Sedimentation, Subsurface Devonian Reef Complex, Canning Basin, Western Australia: Chapter 6
Peter N. Southgate, John M. Kennard, Michael J. Jackson, Phillip E. O'Brien, Michael J. Sexton
AAPG Special Volumes
... by the backstepping Frasnian succession in the Teichert Hills (approximately 180 km southeast of Windjana Gorge). Here, finely laminated phosphatic crusts (formerly...
1993
From Cyclothems to Sequences: The Record of Eustasy and Climate on an Icehouse Epeiric Platform (Pennsylvanian-Permian, North American Midcontinent)
Thomas D. Olszewski, Mark E. Patzkowsky
Journal of Sedimentary Research (SEPM)
..., Bulletin 233, p. 361-414. HECKEL, P.H., 1977, Origin of phosphatic black shale facies in Pennsylvanian cyclothems of Mid-Continent North America: American...
2003
Deposition of Polar Carbonates During Interglacial Highstands on an Early Permian Shelf, Tasmania
Becky Rogala, Noel P. James, Catherine M. Reid
Journal of Sedimentary Research (SEPM)
... are from the Berriedale limestone at Eaglehawk Neck. A) Siliceous and replaced sponge spicules in phosphatic limestone. B) Sponge spicules replaced with late...
2007
Late Pennsylvanian and Early Permian Sedimentation in Northeast Nevada
Jonathan Marcantel
AAPG Bulletin
...-marine conditions by low bottom profile and irregular bottom topography. Biomicrite with phosphatic brachiopods and ostracods probably represents...
1975
Upper Cretaceous Coastal Deposits in South-Central Colorado--Codell and Juana Lopez Members of Carlile Shale
Michael McLane
AAPG Bulletin
... of dark, fetid, bioclastic limestone. Most sections also contain a thin basal bed of phosphatic sandstone. Sharply overlying the Juana Lopez is the Fort...
1982
Upper Cambrian Intrashelf Basin, Nolichucky Formation, Southwest Virginia Appalachians
J. R. Markello , J. F. Read
AAPG Bulletin
... of pellets, quartz and/or feldspar silt, opaques (including pyrite), glauconite, and scattered trilobite and phosphatic brachiopod fragments (Table 1...
1982
Fracture Density in the Deep Subsurface: Techniques with Application to Point Arguello Oil Field (1)
WAYNE NARR
AAPG Bulletin
... siliceous shale, chert, phosphatic shale, mudstone, and dolostone of Miocene age. Terrigenous influx was restricted almost entirely to pelagic...
1991
Transgressive changes from tidal estuarine to marine embayment depositional systems: The Lower Cretaceous Woburn Sands of southern England and comparison with Holocene analogs
Shuji Yoshida, Howard D. Johnson, Kenneth Pye, Richard J. Dixon
AAPG Bulletin
... indicators, such as glauconite and phosphatic nodule beds. The younger Red Sands are incised into all the previous units and characterized by large-scale...
2004
Effects of smectite on the oil-expulsion efficiency of the Kreyenhagen Shale, San Joaquin Basin, California, based on hydrous-pyrolysis experiments
Michael D. Lewan, Michael P. Dolan, and John B. Curtis
AAPG Bulletin
... Phosphatic Shale Member of the Phosphoria Formation), and expulsion efficiencies can be determined on immature samples by hydrous pyrolysis. Conversely...
2014
Chemometric recognition of genetically distinct oil families in the Los Angeles basin, California
K. E. Peters, T. L. Wright, L. S. Ramos, J. E. Zumberge, and L. B. Magoon
AAPG Bulletin
..., calcareous, and phosphatic sediments. Lipid-rich planktonic debris from nutrient-rich surface waters was deposited in oxygen-deficient bathyal sediments...
2016
Mississippian mud rocks of the eastern Great Basin: Stratigraphy, tectonic significance, and hydrocarbon potential
Don E. French, James H. Trexler Jr., Patricia H. Cashman, Jerome P. Walker, and Albert S. Wylie Jr.
AAPG Bulletin
... be correlative with the Delle Phosphatic Member, which is at the base of the Mississippian mud-rock section in the Confusion Range (Figure 3; Bereskin...
2020
Sequence stratigraphy of the Niobrara Formation: Implications for age-constraining tectonic events and stratigraphic complexities in the Denver-Julesburg Basin, United States
William R. Drake and Sarah J. Hawkins
AAPG Bulletin
...tern Wattenberg high as observed in subinterval 7, contains a lag of pyrite and phosphatic lithoclasts and skeletal fragments that occurs at the...
2021
Comparative Stratigraphy of the Eagle Ford Group Strata in Lozier Canyon and Antonio Creek, Terrell County, Texas
Rand D. Gardner, Michael C. Pope, Matthew P. Wehner, Art D. Donovan
GCAGS Journal
..., and phosphatic grains occurs across the study area. Unit B is characterized by organic rich calcareous mudstone interbedded with about 15% interbedded...
2013
Petrography of Paleozoic Sandstones from the Ouachita Mountains of Oklahoma and Arkansas
August Goldstein, Jr.
Ardmore Geological Society
..., chalcedony, chlorite, argillite, potassic and sodic plagioclase feldspar, and phosphatic and/or chitinous fossil fragments. "Core" analyses made from hand...
1959
Geology of the Cookson Hills Area, Cherokee County, Oklahoma*
Clemens P. Brauer
Oklahoma City Geological Society
... disseminated black, nodular, phosphatic material. The upper part is gray, containing carbonaceous material, and a 3 to 4-inch petroliferous zone is present...
1955
Mesozoic Stratigraphy of the Wind River Basin, Central Wyoming
J. D. Love
Wyoming Geological Association
... of the phosphatic shale zones is in the upper middle part of the formation, and the other is near the base. Porous and permeable zones in the cherty dolomite...
1948
The Simpson Group Along the North Flank of the Anadarko Basin
Ray Francis Dietrich, Jr.
Oklahoma City Geological Society
..., black, dull to shiny, coarse sand-sized phosphatic pellets. The explanation for the occurrence of these pellets is not known, but because of the position...
1955
Geologic Models for Assessing Pennsylvanian to Jurassic Clastic Reservoirs of the Paradox Basin
Krystal M. Pearson, Katherine J. Whidden, Lawrence O. Anna, Russell F. Dubiel
Rocky Mountain Association of Geologists
... sourced from the Permian Phosphoria Formation and/or the Mississippian Delle Phosphatic Member of the Chainman Shale and equivalents. Geochemical data...
2014
Habitat of Pennsylvanian Algal Bioherms, Four Corners Area
Gregory K. Elias
Four Corners Geological Society
.... Phosphatic brachiopods, conodonts, and carbonized plant remains characterize the organic component. Also included here are the highly indurated...
1963
Marcasite in Black Shales—a Mineral Proxy for Oxygenated Bottom Waters and Intermittent Oxidation of Carbonaceous Muds
Juergen Schieber
Journal of Sedimentary Research (SEPM)
... samples (Fig. 6). In all Cretaceous examples (Table 1) marcasite is seen to replace calcitic (Fig. 7C) and phosphatic fossil (Fig. 5B, C) debris...
2011