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Mid-Latitude Slope Deposits (Cover Beds)

Mid-Latitude Slope Deposits (Cover Beds)
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2013-02-26
  • Total pages :320
  • ISBN : 9780080932194
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Summary : Slope deposits are common in any inclined relief. So-called cover beds may veil entire landscapes, in which case they are commonly overlooked or confused with soil horizons. This book focuses on these widespread deposits and discusses their properties, genesis, and age mainly in subdued mountains of Central Europe, where to date most research on the matter has been conducted. The ecological consequences of such slope deposits on soils, slope water dynamics, and slope failures are addressed. Finally, transfer of the cover-bed concept to other mid-latitude regions is attempted for the reconstruction of landscape evolution. This unique compilation, covering several decades of a facies-oriented approach to slope-deposit research, delivers deep insight into the wide field of research on cover beds and encourages researchers all over the world to take an in-depth look at the critical zone as to its possible stratified nature. Unique compilation of several decades of slope-deposit research Facies-oriented approach Addresses ecological consequences on soils, slope water dynamics, and slope failures

Mid-Latitude Slope Deposits (Cover Beds)

Mid-Latitude Slope Deposits (Cover Beds)
  • Author : C. Lorz,M. Frühauf,R. Mailänder,J.D. Phillips,A. Kleber
  • Publisher :Unknown
  • Release Date :2013-02-26
  • Total pages :320
  • ISBN : 9780128079393
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Summary : The genesis of soils has been seen mostly as an autochthonistic process, that is, formation in situ. However, soil geomorphologists have recognized addition and loss of materials, for example, through eolian and colluvial processes, as a major contribution to allochthonistic soil formation. The most important characteristic of these soils is the lithological discontinuity, which separates the lower residual material from the upper allochthonic soil. The chapter deals with (1) developing a model joining the ideas of in situ formation and near-surface processes such as adding or removing material, (2) the pedogenetic processes in soils with lithological discontinuities, and (3) the effect of lithological discontinuities on physical and chemical properties of soils.

Mid-Latitude Slope Deposits (Cover Beds)

Mid-Latitude Slope Deposits (Cover Beds)
  • Author : K.-M. Moldenhauer,K. Heller,P. Chifflard,R. Hübner,A. Kleber
  • Publisher :Unknown
  • Release Date :2013-02-26
  • Total pages :320
  • ISBN : 9780128079409
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Summary : Numerous case studies carried out in the subdued mountains of Germany during the last decades have revealed that periglacial cover beds play a decisive role in hillslope hydrology. Considering the omnipresence of cover beds in sloped terrain of the mid-latitudes, knowledge of slope-water paths is crucial not only for flood forecast but also for understanding how contaminants pass through ecosystems. Since periglacial cover beds are usually composed of different sedimentary layers, they show a high spatial variability of physical soil parameters, which are, in turn, responsible for small-scale variations of the hydraulic properties. Regardless of bedrock type, the observations reported in this chapter from different regions lead to the conclusion that there is a clear relationship between subsurface layering and runoff-generation processes. The hydraulic anisotropic structure of the deepest (basal) layer is the major factor controlling subsurface water-flow paths. On one hand, this layer acts as an aquitard for seeping water because of its high bulk density. On the other hand, once water has percolated into this layer, it is able to flow in lateral directions because of the coarse clasts oriented parallel to the slope. Therefore, such a cover bed may be treated neither as an aquifer nor as an aquiclude. Besides, as a function of pre-moisture, a nonlinear runoff response to precipitation or snow-melt of the investigated catchments was identified.

Mid-Latitude Slope Deposits (Cover Beds)

Mid-Latitude Slope Deposits (Cover Beds)
  • Author : B. Damm,B. Terhorst,F. Ottner
  • Publisher :Unknown
  • Release Date :2013-02-26
  • Total pages :320
  • ISBN : 9780128079416
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Summary : The occurrence and spatial distribution of cover beds are decisive for modern hillslope morphodynamics. This aspect is strongly associated with the geotechnical properties of cover beds and especially with their anisotropy. The impact of periglacial cover beds on mass movements, in particular landslides in subdued mountains, will be discussed in this section. The case studies in this chapter show that soil-physical and soil-mechanical properties significantly influence the forces in periglacial cover beds and, thus, directly control the slope stability. In contrast to long-lasting stable geomorphological factors, the reduction of shear strength, friction angle, and cohesion as well as the deformability may induce abrupt instability. Abrupt instabilities in periglacial cover beds particularly arise, when the soil-water content increases and, consequently, both the pore water and the hydrostatic pressures rise. In particular, we show that landslides to a large extent occur in hillslope sediments which are weakly consolidated and sensitive to water penetration.

Mid-Latitude Slope Deposits (Cover Beds)

Mid-Latitude Slope Deposits (Cover Beds)
  • Author : A. Kleber,B. Terhorst,H. Bullmann,D. Hülle,M. Leopold,S. Müller,T. Raab,D. Sauer,T. Scholten,M. Dietze,P. Felix-Henningsen,J. Heinrich,E.-D. Spies,H. Thiemeyer
  • Publisher :Unknown
  • Release Date :2013-02-26
  • Total pages :320
  • ISBN : 9780128079386
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Summary : Slope deposits, which veil entire slopes or large parts of them in a rather uniform manner (cover beds), are ubiquitous in the subdued mountains of Central Europe. Here we provide an overview of the current state of knowledge on these deposits. The Central European cover beds are divided into (1) the upper layer that is ubiquitously distributed and displays a relatively constant thickness; (2) the intermediate layer the distribution of which is mainly restricted to flat relief, to slope depressions, and to lee-ward facing slopes; and (3) the basal layer, which is rather widespread again. Both the upper and intermediate layer contain intermixed loess, whereas the basal layer is free of loess and typically has a high bulk density. Aside from the loess content, the composition of the layers differs, reflecting varying portions of crushed and chemically weathered rock allocated from up-slope. This causes notable diversity depending on bedrock and, thus, induces remarkable regional differences. Cover beds were mainly formed by periglacial gelifluction. The upper layer formed in the Late Glacial possibly during several short episodes of activity. In contrast, the underlying layers may be diachronous; nevertheless, they display recurring vertical sequences. This is probably due to the fact that loess-free layers usually could not deposit as long as there was loess in the environs, which may have been inherited from older deposits. Thus, the last phase of surface wash, during which older loess was removed, determines the age of the lower layers.

Geographical Review of Japan

Geographical Review of Japan
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2005
  • Total pages :229
  • ISBN : UOM:39015080610499
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Summary :

Oceanographica Sinica

Oceanographica Sinica
  • Author : Tingying Ma
  • Publisher :Unknown
  • Release Date :1957
  • Total pages :229
  • ISBN : STANFORD:36105002762271
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Summary :

The Tectonics, Sedimentation and Palaeoceanography of the North Atlantic Region

The Tectonics, Sedimentation and Palaeoceanography of the North Atlantic Region
  • Author : R. A. Scrutton,Geological Society of London,G. B. Shimmield,M. S. Stoker
  • Publisher :Unknown
  • Release Date :1995
  • Total pages :309
  • ISBN : UOM:39015034931835
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Summary :

中國地質學會會刊

中國地質學會會刊
  • Author : 中國地質學會(Taipei, Taiwan)
  • Publisher :Unknown
  • Release Date :1959
  • Total pages :229
  • ISBN : UOM:39015001928681
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Summary :

My Genetic View of Major Structures on the Ocean Floor

My Genetic View of Major Structures on the Ocean Floor
  • Author : Tʻing-ying Ma
  • Publisher :Unknown
  • Release Date :1960
  • Total pages :18
  • ISBN : UCSD:31822009407461
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Summary :

Research on the Past Climate and Continental Drift

Research on the Past Climate and Continental Drift
  • Author : Tingying Ma
  • Publisher :Unknown
  • Release Date :1958
  • Total pages :229
  • ISBN : STANFORD:36105011081077
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Summary :

The Geomorphology of the Eastern Cape, South Africa

The Geomorphology of the Eastern Cape, South Africa
  • Author : Colin A. Lewis
  • Publisher :Unknown
  • Release Date :1996
  • Total pages :138
  • ISBN : STANFORD:36105028752967
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Summary :

Landslides

Landslides
  • Author : A. Keith Turner,National Research Council (U.S.). Transportation Research Board,Robert L. Schuster
  • Publisher :Unknown
  • Release Date :1996
  • Total pages :673
  • ISBN : 030906208X
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Summary : This Special Report is a greatly expanded edition of a previous report on landslides (Special Report 176, "Landslides: Analysis and Control") published in 1978. The new report, which has been designed with an even broader international scope, contains comprehensive, practical discussions of field investigations, laboratory testing, and stability analysis procedures and technologies; comprehensive references to the literature; and discussions of case studies, state-of-the-art techniques, and research directions. The report is presented in five sections: (1) Principles, Definitions, and Assessment; (2) Investigation; (3) Strength and Stability Analysis; (4) Mitigation; and (5) Special Cases and Materials.

The Grenville Event in the Appalachians and Related Topics

The Grenville Event in the Appalachians and Related Topics
  • Author : Mervin J. Bartholomew
  • Publisher :Unknown
  • Release Date :1984
  • Total pages :287
  • ISBN : 0813721946
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Summary :

Late Quaternary Environmental Change

Late Quaternary Environmental Change
  • Author : Martin Bell,Mike J. C. Walker
  • Publisher :Unknown
  • Release Date :1992
  • Total pages :273
  • ISBN : UCSD:31822016249922
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Summary : Adopting an ecological approach to archaeology this book discusses the relationships between people and environments against a backdrop of climate change.

Petroleum Abstracts

Petroleum Abstracts
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1994-11
  • Total pages :229
  • ISBN : STANFORD:36105016269065
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Summary :

The Quaternary of Virginia

The Quaternary of Virginia
  • Author : Virginia. Division of Mineral Resources
  • Publisher :Unknown
  • Release Date :1986
  • Total pages :137
  • ISBN : UVA:X001405303
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Summary :

Abstracts

Abstracts
  • Author : International Union for Quaternary Research. Congress
  • Publisher :Unknown
  • Release Date :1977
  • Total pages :229
  • ISBN : UOM:39015051266180
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Summary :

Nature

Nature
  • Author : Sir Norman Lockyer
  • Publisher :Unknown
  • Release Date :2005-03
  • Total pages :229
  • ISBN : UIUC:30112075217221
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Summary :

Dissertation Abstracts International

Dissertation Abstracts International
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1994
  • Total pages :229
  • ISBN : STANFORD:36105020027368
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Summary :

Annales de géomorphologie

Annales de géomorphologie
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1960
  • Total pages :229
  • ISBN : UCBK:C022069532
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Summary :