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Author : Dale R. Setterholm,G. B. Morey,Geological Survey (U.S.)
Publisher : Unknown
Page : 40 pages
File Size : 51,8 Mb
Release : 1995
Category : Saprolites
ISBN : UOM:39015095007079
Author : Dale R. Setterholm,G. B. Morey,United States Geological Survey
Publisher : Unknown
Page : 29 pages
File Size : 48,5 Mb
Release : 1989
Category : Electronic
ISBN : OCLC:256760518
Author : Anonim
Publisher : Unknown
Page : 292 pages
File Size : 43,7 Mb
Release : 1983
Category : Geology
ISBN : MINN:31951P00696001N
Author : Pieter Berendsen,Andrzej Barczuk
Publisher : Unknown
Page : 234 pages
File Size : 51,5 Mb
Release : 1993
Category : Carbonate rocks
ISBN : OSU:32435056588080
Author : Anonim
Publisher : Unknown
Page : 138 pages
File Size : 43,7 Mb
Release : 1996
Category : Geology
ISBN : MINN:31951D00369589Z
Author : Geological Survey (U.S.)
Publisher : Unknown
Page : 322 pages
File Size : 52,8 Mb
Release : 1996
Category : Geology
ISBN : UOM:39015047328730
Author : Domenico Calcaterra,Mario Parise
Publisher : Geological Society of London
Page : 254 pages
File Size : 47,5 Mb
Release : 2010
Category : Earth movements
ISBN : 1862392978
This volume is intended to provide an up-to-date overview of the approaches, methodologies and techniques devoted to better understand-ing of the weathering conditions of rock masses on slopes. According to the local conditions, a variety of slope movements may take place and involve weathered rock masses. Shallow and rapid soil slips evolving to debris flows are probably the most common type of slope movement. At the same time, deep-seated, intermittent landslides can also affect large volumes of weathered rocks and soils. Despite the high frequency of landslides in weathered materials, and the damage and casualties they repeatedly cause, little is known about the relationship between weathering and slope move-ments. This book presents worldwide case studies, where a variety of geo-logical and geomorphological settings are discussed. The content is divided into three sections: the first is devoted to broad aspects of the weathering/landslide processes; the second and third sections include papers dealing with igneous/metamorphic and sedimentary weathered rocks, respec-tively.
Author : Anonim
Publisher : Unknown
Page : 936 pages
File Size : 51,9 Mb
Release : 1996
Category : Government publications
ISBN : MINN:31951P00742644O
Author : Raymond R. Anderson,Robert M. McKay,Geological Survey (U.S.)
Publisher : Unknown
Page : 60 pages
File Size : 50,8 Mb
Release : 1997
Category : Geology
ISBN : UOM:39015095007061
The Middle Proterozoic Midcontinent Rift System (MRS) of North America is a failed rift that formed in response to region-wide stresses about 1,100 Ma. In Iowa, the MRS is buried beneath 2,200-3,500 ft of Paleozoic and Mesozoic sedimentary rocks and Quaternary glaciogenic deposits. An extremely large volume of sediments was deposited within basins associated with the rift at several stages during its development. Although the uplift of a rift-axial horst resulted in the erosional removal of most of these clastic rocks from the central region of the MRS in Iowa, thick sequences are preserved in a series of horst-bounding basins. Recent studies incorporating petrographic analysis, geophysical modeling, and other analytical procedures have led to the establishment of a preliminary stratigraphy for these clastic rocks and interpretations of basin geometries. This information has allowed the refinement of existing theories and history of MRS formation in Iowa. Additionally, drill samples previously interpreted as indicating the existence of early Paleozoic basins overlying the Proterozoic MRS basins were re-examined. Samples previously interpreted as deep-lying Paleozoic rocks are now known to have caved from upper levels of the drillhole and were out of stratigraphic position. No deep Paleozoic basins exist in this area. These investigations led to the development of petrographic parameters useful in differentiating the Proterozoic MRS Red clastics from Paleozoic clastic rocks having similar lithologies.
Author : Johan Kleman
Publisher : Unknown
Page : 316 pages
File Size : 40,5 Mb
Release : 1999
Category : Glacial landforms
ISBN : STANFORD:36105112207431
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 47,9 Mb
Release : 1933
Category : Electronic
ISBN : UOM:39015055743929
Author : Douglass E. Owen,Kenneth L. Wahl,Walden P. Pratt,Wendell A. Duffield,George N. Breit,John Harvey Sass,Wilbert O. Thomas,M. L. Sorey,Robert M. Hirsch
Publisher : Unknown
Page : 188 pages
File Size : 48,8 Mb
Release : 1984
Category : Earth movements
ISBN : OSU:32435057608572
Author : Minnesota Geological Survey
Publisher : Unknown
Page : 72 pages
File Size : 52,8 Mb
Release : 1996
Category : Geology
ISBN : PSU:000043736898
Author : Walden P. Pratt
Publisher : Unknown
Page : 28 pages
File Size : 47,7 Mb
Release : 1995
Category : Geology
ISBN : OSU:32435062555560
Author : Anonim
Publisher : Unknown
Page : 508 pages
File Size : 47,5 Mb
Release : 1999
Category : Geology, Economic
ISBN : STANFORD:36105021268524
