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Showing 1 to 20 of 169 for “"Permian"”.
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Effects of Permian evaporite dissolution in Kansas
Digitized by Kansas Correctional Industries
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Effects of Permian evaporite dissolution in Kansas
Digitized by Kansas Correctional Industries
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Preservation Potential of Permian Gypsum Beds, Nippewalla Group, USA
ABSTRACT During the Permian, what is now southern Kansas and northern Oklahoma was a drying inhospitable environment, as evidenced by the extensive red-beds and evaporites of the Nippewalla Group. Due to the fact that animals could not live in much of this extreme environment, there is a lack of a …
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Stratigraphic relationships of lower Permian rocks, Johnson County, Wyoming
Includes bibliographical references.
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Palaeoecology of the late Permian mass extinction and subsequent recovery
Climate warming during the latest Permian is associated with the most severe mass extinction event of the Phanerozoic, and the expansion of hypoxic and anoxic conditions into shallow shelf settings. Our understanding of the magnitude, pattern and duration of the extinction event and subsequent …
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Upper-Pennsylvanian - Lower-Permian Stratigraphy of Southern and Eastern Nevada
Made available in DSpace on 2014-12-11T18:10:04Z (GMT). No. of bitstreams: 1 7317642.pdf: 3573856 bytes, checksum: 911d20e031efacb559d31457c289016e (MD5) Previous issue date: 1973
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Pennsylvanian and Permian Fusulinids of Western Montana and Central Idaho
Made available in DSpace on 2014-12-04T19:13:15Z (GMT). No. of bitstreams: 1 0002089.pdf: 9305189 bytes, checksum: 876ebacaa7628986166a983e9f82ca73 (MD5) Previous issue date: 1950
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The palaeobiology of the late Permian dicynodont Endothiodon (Therapsida, Anomodontia)
Among the dicynodonts, the late Permian genus Endothiodon is unique for its cranial morphology and unusual dentition. Despite the extensive amount of Endothiodon cranial material recovered from Gondwanan deposits worldwide, there is much that is unknown about its palaeobiology. This thesis provides …
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Multi-proxy palaeoclimate reconstruction of the permian-triassic mass extinction event
The Permian/Triassic (P/Tr) boundary is widely assumed to have been a time of extreme environmental upheaval and change. In the terrestrial realm, a negative anomaly in 813C isotope values has been reported from organic carbon in Antarctica, Australia, India and Madagascar, and from marine …
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Detrital Zircon Analysis of Permian Victoria Group Sandstones, Transantarctic Mountains, Antarctica
… of Antarctica, comprises Devonian (inferred) and Permian-Triassic strata. The latter were deposited in an intracratonic basin which evolved into a foreland basin in mid Permian time. Sedimentary petrology and paleocurrent data indicate that this basin had two major detrital sources, a cratonic …
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The Lungfish Gnathorhiza and Its Burrows From the Permian of Kansas
… both trace and body fossils in the Kansan Lower Permian (Speiser Shale). At the Junction City locality, burrows allow a refinement of the interpretation of the behavior and life habits of the lungfish Gnathorhiza. Gnathorhiza withdrew from adverse environmental conditions into flask-shaped …
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Paleoecologic study of the Oketo shale (Lower permian) in north central Kansas
Digitized by Kansas Correctional Industries
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Paleoecologic study of the Oketo shale (Lower permian) in north central Kansas
Digitized by Kansas Correctional Industries
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An analysis of geothermal viability in Pecos County, Permian Basin, West Texas
Pecos County, located in the Permian Basin of west Texas, is a deep sedimentary basin within which the Delaware Basin and Central Basin Platform are located. Significant oil and gas activity has occurred here over nearly 100 years. This activity has yielded substantial available well data for …
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Characterization of Lower Permian Carbonate Subaqueous Gravity Flows in Crockett County, Texas
<p>Transitional sediments on carbonate ramp slopes act as a link to relatively well-studied platform and basin depositional environments. In the southern Midland Basin, the key to understanding the relationship between these environments lies in the allochthonous gravity flow sediments found on the …
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Modern Invertebrate Footprints Compared with Fossil Footprints from the Coconino Sandstone (Permian)
… footprints (Paleohelcura sp.) of the Permian Coconino sandstone of Northern Arizona, and similar footprints of other sandstone. Fine grained sand (similar to that composing the Coconino sandstone) was placed in a plexiglass tank to form slopes of various angles. The crayfish walked up …
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