Devonian Strata of Alpena and Presque Isle Counties, Michigan PDF Download
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Author: George Marion Ehlers
Publisher:
ISBN:
Category : Alpena County (Mich.)
Languages : en
Pages : 140
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Book Description
Author: George Marion Ehlers
Publisher:
ISBN:
Category : Alpena County (Mich.)
Languages : en
Pages : 140
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Book Description
Author: Garland Delos Ells
Publisher:
ISBN:
Category : Geological cross sections
Languages : en
Pages : 156
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Book Description
The Devonian shales of the eastern United States are a potential source for tremendous volumes of liquid and gaseous hydrocarbons. The Antrim Shale of Michigan is a part of this extensive body of rock. As part of the Shale Characterization Program, stratigraphic cross sections showing the Antrim Shale and associated formations have been constructed for various parts of the Michigan Basin. The principal formations include the Antrim Shale of Devonian age, the Ellsworth Shale which correlates primarily with the Antrim Shale but whose uppermost part appears to correlate with parts of certain formations of Mississippian age, and the Bedford Shale, Berea Sandstone and Sunbury Shale of eastern Michigan. The Bedford Shale immediately overlies the Antrim in eastern Michigan. Regional cross sections are constructed from gamma ray logs as illustration of the stratigraphic associations of these Devonian and Mississippian formations in the Michigan Basin. Data from gamma ray logs and records of 99 individual wells distributed throughout the Southern Peninsula of Michigan were used to construct six cross sections, and a network of intersecting cross sections which illustrates depths, thicknesses, and the stratigraphic relationship of the subject formations in various sectors of the Basin.
Author: R. T. Becker
Publisher: Geological Society of London
ISBN: 9781862392229
Category : Science
Languages : en
Pages : 296
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Book Description
The Devonian was a peculiar period, characterized by simplified plate tectonic configurations, climatic overheating and widely flooded continents. The bloom of fishes and ammonoids, extensive reef complexes, and the conquest of land indicate major biosphere innovations, punctuated by many global events, including two of the biggest mass extinctions. The Devonian was the first system for which subdivisions were formally defined. This was achieved by significant advances in pelagic biostratigraphy. The chronostratigraphic framework and interdisciplinary techniques allow us to correlate intervals or sudden events across facies boundaries, in order to reconstruct the sedimentary and evolutionary history of the system with highest precision. This volume honors the lifetime stratigraphic achievements of Michael Robert House (1930-2002). Based on case studies from Europe, North Africa and North America, it shows how the combination of biostratigraphy, chemostratigraphy, magnetostratigraphy, sequence stratigraphy and event stratigraphy can contribute to a much deeper understanding of both regional and global environmental change.
Author: Charles Frederick Deiss
Publisher:
ISBN:
Category :
Languages : en
Pages : 336
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Book Description
Author: Paul A. Catacosinos
Publisher: Geological Society of America
ISBN: 081372256X
Category : Science
Languages : en
Pages : 258
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Book Description
Author: Brian J. Witzke
Publisher: Geological Society of America
ISBN: 081372306X
Category : Science
Languages : en
Pages : 453
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Book Description
Author: Geological Society of London
Publisher: Geological Society of London
ISBN: 9781862392731
Category : Science
Languages : en
Pages : 308
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Book Description
The rapid evolution of terrestrial ecosystems in the Devonian Period combined with climate change and many global events had a pronounced influence on sedimentation and biodiversity in various terrestrial and marine settings. This volume presents a number of case studies which cover the following topics land-sea transitional settings, the role of ecological-evolutionary subunits, the diversity and palaeoecology of reef building organisms and microfloras with respect to sedimentary processes and global events.
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 570
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Book Description
Author: David Leigh Clark
Publisher: Geological Society of America
ISBN: 0813721962
Category : Science
Languages : en
Pages : 347
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Book Description
Author: H. M. Wilson
Publisher:
ISBN:
Category : Geographical positions
Languages : en
Pages : 342
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Book Description
