The Hell Creek Formation and the Cretaceous-Tertiary Boundary in the Northern Great Plains PDF Download
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Author: Joseph Herbert Hartman
Publisher: Geological Society of America
ISBN: 9780813723617
Category : Science
Languages : en
Pages : 530
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Book Description
Author: Joseph Herbert Hartman
Publisher: Geological Society of America
ISBN: 9780813723617
Category : Science
Languages : en
Pages : 530
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Book Description
Author: Gregory P. Wilson
Publisher: Geological Society of America
ISBN: 0813725038
Category : Science
Languages : en
Pages : 396
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Book Description
"The chapters represent a surge of field and laboratory research activity, illustrating the impacts of new and refined methods and tools. This volume explores geologic and biologic history preserved in the strata bounding the Cretaceous-Paleogene boundary"--Provided by publisher.
Author: Jai Krishna
Publisher: Springer
ISBN: 9811024774
Category : Science
Languages : en
Pages : 748
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Book Description
The book reviews and summarizes the Indian Mesozoic geological evolution in an innovative alternative perspective of sequence stratigraphy. It mainly focuses on the Jurassic interval, but also concisely discusses the preceding Triassic and Cretaceous geological records. The key to the study is primarily held in the recently developed ammonoid based high resolution scales in the Triassic and Jurassic period. The Indian Jurassic record is thus elevated to a high resolution pedestal. The large intra-Jurassic stratigraphic gap in Kachchh, with increase in duration from margin to basin, has been précised in different sections, along with radical revision of its long held interpretation from sub-aerial to sub-marine all over from Arabia to Australia. Other significant gaps are also differentiated into sub-aerial and sub-marine. The Indian Late Precambrian – Neogene record is organized into five mega-sequences. Among these, the fourth – also the most important one – includes the intra-Permian to Early Eocene interval from the origin to the closure of the Neotethys. Based on multidisciplinary integration of the Indian Mesozoic geological record and comparison with hydrocarbon producing basins on east and west of India, a highly positive scenario of the hydrocarbon source/reservoir sediment perspective is outlined in the book in sequence stratigraphic backdrop as an edifice for future elaborate evaluation.
Author: Donald L. Lofgren
Publisher: Univ of California Press
ISBN: 9780520915794
Category : Science
Languages : en
Pages : 204
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Book Description
Bug Creek assemblages from Montana, transitional in composition between typical Cretaceous and Paleocene vertebrate faunas, are critical to K-T extinction debates because they have been used to support both gradual and catastrophic K-T extinction scenarios. Geological and palynological data from McGuire Creek indicate that Bug Creek assemblages are Paleocene and restricted to channel fills entrenched into older sediments, suggesting that the Cretaceous component of the assemblage was reworked. Thus, the author concludes, "Paleocene dinosaurs" are an illusion and the K-T survival rate of mammals is low because the presence of Cretaceous mammals in Bug Creek assemblages is also the result of reworking.
Author: Mark A. Sholes
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 186
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 702
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 700
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Author:
Publisher:
ISBN:
Category : Petroleum
Languages : en
Pages : 476
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Book Description
Author: Montana Bureau of Mines and Geology
Publisher:
ISBN:
Category :
Languages : en
Pages : 358
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Book Description
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1516
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