Kaniksu National Forest (N.F.), Quartz Mountain Land Management Plan (WA,ID)
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Page : 216 pages
File Size : 37,41 MB
Release : 1979
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Page : 216 pages
File Size : 37,41 MB
Release : 1979
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Page : 306 pages
File Size : 24,17 MB
Release : 1976
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Author : United States. Forest Service
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Page : 374 pages
File Size : 25,86 MB
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Author : Ralph S. Space
Publisher : Historic Montana Publishing
Page : 0 pages
File Size : 29,35 MB
Release : 2001
Category : Bird-Truax Trail (Idaho and Mont.)
ISBN : 9780966335521
A thorough history of the Indian trail taken by Lewis & Clark from the headwaters of the Clearwater River to the Columbia, which later became a trail to the gold fields of Montana.
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Page : 370 pages
File Size : 49,31 MB
Release : 1993
Category : Forest reserves
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Author : United States. Forest Service
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Page : 788 pages
File Size : 29,56 MB
Release : 1941
Category : Forest management
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Author : Gerald E. Ray
Publisher :
Page : 328 pages
File Size : 19,10 MB
Release : 1997
Category : Science
ISBN :
Skarns in British Columbia have historically been important sources of iron, tungsten, copper, and gold. This publication begins with an introduction on skarn terminology and the problems of skarn identification. It then reviews a genetic model of skarn formation and presents descriptive profiles of eight types of skarn deposits; describes the database of at least 735 skarn occurrences in the province, and the number and distribution of skarns in British Columbia according to their associations, class, age, and distribution; and notes the ages of British Columbia skarns and the total production of various metals extracted from British Columbia skarns. Subsequent sections provide information on assays and metal ratios of mineralized skarns, skarn mineralogy, skarn mineral chemistry, chemistry of skarn-related intrusions, and the mapping and evaluation of skarns. The appendix contains a listing of 735 skarn occurrences in British Columbia, giving deposit name, MINFILE number, latitude/longitude, elements and minerals present, and associated rocks and their ages.
Author : Kate C. McBeth
Publisher :
Page : 302 pages
File Size : 27,27 MB
Release : 1908
Category : History
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Author : Peter H. Stauffer
Publisher :
Page : 8 pages
File Size : 34,53 MB
Release : 2004
Category : Earthquake hazard analysis
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Author : Aldo Leopold
Publisher : Penguin UK
Page : 96 pages
File Size : 41,60 MB
Release : 2021-08-26
Category : Science
ISBN : 0241514673
In twenty short books, Penguin brings you the classics of the environmental movement. In this lyrical meditation on America's wildlands, Aldo Leopold considers the different ways humans shape the natural landscape, and describes for the first time the far-reaching phenomenon now known as 'trophic cascades'. Over the past 75 years, a new canon has emerged. As life on Earth has become irrevocably altered by humans, visionary thinkers around the world have raised their voices to defend the planet, and affirm our place at the heart of its restoration. Their words have endured through the decades, becoming the classics of a movement. Together, these books show the richness of environmental thought, and point the way to a fairer, saner, greener world.