Author : Colorado. Mined Land Reclamation Division
Publisher :
Page : 42 pages
File Size : 23,88 MB
Release : 1984
Category : Abandoned coal mines
ISBN :
Author : Colorado. Mined Land Reclamation Division
Publisher :
Page : 50 pages
File Size : 44,21 MB
Release : 1984
Category : Abandoned coal mines
ISBN :
Author : Colorado. Mined Land Reclamation Division
Publisher :
Page : 50 pages
File Size : 31,57 MB
Release : 1984
Category : Abandoned coal mines
ISBN :
Author :
Publisher :
Page : 78 pages
File Size : 14,73 MB
Release : 1981
Category : Coal mine waste
ISBN :
Author : Clarence R. Geier
Publisher : Createspace Independent Publishing Platform
Page : 232 pages
File Size : 36,35 MB
Release : 2017-02-10
Category :
ISBN : 9781541023482
The book includes six chapters that cover Virginia history from initial settlement through the 20th century plus one that deals with the important role of underwater archaeology. Written by prominent archaeologists with research experience in their respective topic areas, the chapters consider important issues of Virginia history and consider how the discipline of historic archaeology has addressed them and needs to address them . Changes in research strategy over time are discussed , and recommendations are made concerning the need to recognize the diverse and often differing roles and impacts that characterized the different regions of Virginia over the course of its historic past. Significant issues in Virginia history needing greater study are identified.
Author : United States. Bureau of Mines
Publisher :
Page : 1284 pages
File Size : 49,73 MB
Release : 1968
Category : Mineral industries
ISBN :
Includes about 55,000 individual mining and mineral industry term entries with about 150,000 definitions under these terms.
Author : David J. Hafner
Publisher : IUCN
Page : 188 pages
File Size : 15,35 MB
Release : 1998
Category : Nature
ISBN : 9782831704630
The first comprehensive treatment of North American rodents of conservation concern. This action plan summarizes the rodent fauna of North America and provides available information on every rodent taxon that has been considered to be of conservation concern by state, provincial and private conservation agencies and regional experts. It is hoped that the survey provided in this action plan will serve as a common ground for all these parties in drawing up conservation strategies for rodents.
Author : Rob E. Stoneman
Publisher : Stationery Office Books (TSO)
Page : 0 pages
File Size : 49,24 MB
Release : 1997
Category : Bog conservation
ISBN : 9780114958367
Bogs are fascinating landscapes for ecologists, climatologists, archaeologists, environmental historians and water managers. But many bogs have been damaged, and legislative protection - as 29 case studies demonstrate - is not enough to conserve the rest.
Author : Colorado. Mined Land Reclamation Division
Publisher :
Page : 80 pages
File Size : 38,44 MB
Release : 1984
Category : Abandoned coal mines
ISBN :
Author : Barry Golding
Publisher : Springer
Page : 207 pages
File Size : 35,82 MB
Release : 2017-02-26
Category : Science
ISBN : 3319511750
This book explains how and where copper and fossil fuels were formed and the likely future for the extraction of copper and coal. The colourful chronology of our efforts to extract metals from minerals and energy from fossil fuels is presented from earliest times until the present day. The difficult concept of human sustainability is examined in the context of continually decreasing real prices of energy and metals. This book integrates the latest findings on our historic use of technology to continually produce cheaper metals even though ore grades have been decreasing. Furthermore, it shows that the rate of technological improvement must increase if metals are to be produced even more cheaply in the future.
