The Applicability Of Seismic Refraction Soundings In Permafrost Near Thule Greenland
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The Applicability Of Seismic Refraction Soundings In Permafrost Near Thule Greenland
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Author : Hans Roethlisberger
language : en
Publisher:
Release Date : 1961
The Applicability Of Seismic Refraction Soundings In Permafrost Near Thule Greenland written by Hans Roethlisberger and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Frozen ground categories.
The applicability of the seismic refraction method for engineering purposes was investigated in the Thule area of Greenland. Special attention was given to the cases in which shallow ice overlies frozen ground and in which frozen glacial drift up to a few hundred feet thick overlies bedrock. Seismic velocities were measured in different types of sediments of the Thule formation and in the crystalline basement rock. The velocities in rock and frozen ground were generally high, cementation by ice being the most likely reason at the relatively low ground temperatures of about -10 C. It was found that, with comparable velocity discrimination, the refraction method gives more complete information in permafrost than in unfrozen material, since later seismic events can be identified on the records shortly after the first arrival. Later events also made wide angle reflection soundings possible at a depth as shallow as 200 ft. A nagative velocity gradient in the frozen ground is believed to be responsible for the rapid attenuation of tthe direct wave. (Author).
Crrel Report
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Author : Cold Regions Research and Engineering Laboratory (U.S.)
language : en
Publisher:
Release Date : 1976
Crrel Report written by Cold Regions Research and Engineering Laboratory (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Civil engineering categories.
Cold Regions Science And Engineering Monograph
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Author :
language : en
Publisher:
Release Date : 1972
Cold Regions Science And Engineering Monograph written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Cold regions categories.
Usa Crrel Technical Publications
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Author : Cold Regions Research and Engineering Laboratory (U.S.)
language : en
Publisher:
Release Date : 1972
Usa Crrel Technical Publications written by Cold Regions Research and Engineering Laboratory (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Frozen ground categories.
Special Report Corps Of Engineers U S Army Cold Regions Research And Engineering Laboratory
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Author : Cold Regions Research and Engineering Laboratory (U.S.)
language : en
Publisher:
Release Date : 1972
Special Report Corps Of Engineers U S Army Cold Regions Research And Engineering Laboratory written by Cold Regions Research and Engineering Laboratory (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Arctic regions categories.
Geological Survey Bulletin
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Author :
language : en
Publisher:
Release Date : 1963
Geological Survey Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Earth sciences categories.
Bibliography Of North American Geology
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Author :
language : en
Publisher:
Release Date : 1965
Bibliography Of North American Geology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Geology categories.
1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.
Permafrost North American Contribution To The Second International Conference
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Author :
language : en
Publisher: National Academies
Release Date : 1973-01-01
Permafrost North American Contribution To The Second International Conference written by and has been published by National Academies this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973-01-01 with Frozen ground categories.
Geophysical Abstracts 188 January March 1962
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Author :
language : en
Publisher:
Release Date : 1962
Geophysical Abstracts 188 January March 1962 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Earth sciences categories.
Geophysical Abstracts
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Author :
language : en
Publisher:
Release Date : 1962
Geophysical Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Geophysics categories.