Humboldt National Forest (N.F.), Jerritt Canyon Mine Expansion
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Page : 392 pages
File Size : 25,80 MB
Release : 1994
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Page : 392 pages
File Size : 25,80 MB
Release : 1994
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Page : 382 pages
File Size : 48,1 MB
Release : 1996
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Page : 594 pages
File Size : 11,77 MB
Release : 1994
Category : Agriculture
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Page : 908 pages
File Size : 36,16 MB
Release : 1995
Category : Agriculture
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Author : John P. Worsham
Publisher :
Page : 20 pages
File Size : 28,62 MB
Release : 1980
Category : Environmental impact statements
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Author : John C. Hendee
Publisher :
Page : 408 pages
File Size : 34,92 MB
Release : 1978
Category : Wilderness areas
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Author : Adrian M. Harvey
Publisher : Geological Society of London
Page : 258 pages
File Size : 36,32 MB
Release : 2005
Category : Science
ISBN : 9781862391895
Alluvial fans are important sedimentary environments. They trap sediment delivered from mountain source areas, and exert an important control on the delivery of sediment to downstream environments, to axial drainages and to sedimentary basins. They preserve a sensitive record of environmental change within the mountain source areas. Alluvial fan geomorphology and sedimentology reflect not only drainage basin size and geology, but change in response to tectonic, climatic and base-level controls. One of the challenges facing alluvial fan research is to resolve how these gross controls are reflected in alluvial fan dynamics and to apply the results of studies of modern fan processes and Quaternary fans to the understanding of sedimentary sequences in the rock record. This volume includes papers based on up-to-date research, and focuses on three themes: alluvial fan processes, dynamics of Quaternary alluvial fans and fan sedimentary sequences. Linking the papers is an emphasis on the controls of fan geomorphology, sedimentology and dynamics. This provides a basis for integration between geomorphological and sedimentological approaches, and an understanding how fluvial systems respond to tectonic, climatic and base-level changes.
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Page : 526 pages
File Size : 50,49 MB
Release : 1839
Category : United States
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Author : R. P. Foster
Publisher : Springer Science & Business Media
Page : 447 pages
File Size : 27,39 MB
Release : 2012-12-06
Category : Science
ISBN : 1461304970
Within the last decade, the high and continuing demand for gold has prompted a global gold rush on a scale never before seen, not even in the heady days of Ballarat, California and the Yukon. Gold is being sought on every continent and, with very few exceptions, in every country around the world. Such interest and fierce competition has demanded considerable innovation and improvement in exploration techniques paralleled by a rapid expansion of the geological database and consequent genetic modelling for the many different types of gold deposits now recognized. This proliferation of data has swamped the literature and left explorationist and academic alike unable to sift more than a small proportion of the accumulating information. This new book represents an attempt to address this major problem by providing succinct syntheses ofall major aspects ofgold metallogeny and exploration, ranging from the chemical distribution of gold in the Earth's crust, and the hydrothermal chemistry of gold, to Archaean and Phanerozoic lode deposits, epithermal environments, chemical sediments, and placer deposits, and culminates in chapters devoted to geochemical and geophysical exploration, and the economics of gold deposits. Each chapter is written by geoscientists who are acknowledged internationally in their respective fields, thus guaranteeing a broad yet up-to-date coverage. In addition, each chapter is accompanied by reference lists which provide readers with access to the most pertinent and useful publications.
Author : David S. G. Thomas
Publisher : John Wiley & Sons
Page : 918 pages
File Size : 26,14 MB
Release : 2013-05-28
Category : Science
ISBN : 1118687434
The third edition of this comprehensive encyclopedic dictionary covers the whole field of physical geography and provides an essential reference for all students and lecturers in this field.