Publications of the Geological Survey
Author : Geological Survey (U.S.)
Publisher :
Page : 508 pages
File Size : 37,50 MB
Release : 1995
Category : Geology
ISBN :
Author : Geological Survey (U.S.)
Publisher :
Page : 508 pages
File Size : 37,50 MB
Release : 1995
Category : Geology
ISBN :
Author :
Publisher :
Page : pages
File Size : 41,12 MB
Release : 1998-07
Category : Government publications
ISBN :
Author : Geological Survey (U.S.)
Publisher :
Page : 428 pages
File Size : 10,28 MB
Release : 1995
Category : Geology
ISBN :
Author : Geological Survey (U.S.)
Publisher :
Page : 156 pages
File Size : 34,93 MB
Release : 1995
Category : Geology
ISBN :
Author : Gerald E. Ray
Publisher :
Page : 328 pages
File Size : 50,66 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 : Nancy D. Naeser
Publisher : Springer Science & Business Media
Page : 555 pages
File Size : 29,83 MB
Release : 2012-12-06
Category : Science
ISBN : 1461234921
The collection of papers in this volume is a direct result of the Society of Economic Paleontologists and Mineralogists Research Symposium on "Thermal History of Sedimentary Basins: Methods and Case Histories" held as part of the American Association of Petroleum Geologists Annual Convention in New Orleans in March 1985. The original goal of the sym posium was to provide a forum where specialists from a variety of dis ciplines could present their views of methods that can be used to study the thermal history of a sedimentary basin or an important portion of a basin. An explicit part of that goal was to illustrate each method by presentation of a case history application. The original goal is addressed by the chapters in this volume, each of which emphasizes a somewhat different approach and gives field data in one way or another to illustrate the practical useful ness ofthe method. The significance of our relative ignorance of the thermal conductivities of sedimentary rocks, especially shales, in efforts to understand or model sedimentary basin thermal histories and maturation levels is a major thrust of the chapter by Blackwell and Steele. Creaney focuses on variations in kerogen composition in source rocks of different depositional environments and the degree to which these chem- . ically distinct kerogens respond differently to progressive burial heating.
Author : Edwin W. Tooker
Publisher :
Page : 168 pages
File Size : 31,51 MB
Release : 1985
Category : Disseminated deposits
ISBN :
Author : John Gunn
Publisher : Routledge
Page : 1971 pages
File Size : 40,54 MB
Release : 2004-08-02
Category : Reference
ISBN : 1135455082
The Encyclopedia of Caves and Karst Science contains 350 alphabetically arranged entries. The topics include cave and karst geoscience, cave archaeology and human use of caves, art in caves, hydrology and groundwater, cave and karst history, and conservation and management. The Encyclopedia is extensively illustrated with photographs, maps, diagrams, and tables, and has thematic content lists and a comprehensive index to facilitate searching and browsing.
Author :
Publisher :
Page : 686 pages
File Size : 43,75 MB
Release : 1980
Category : Earthquakes
ISBN :
Author : E. A. Du Bray
Publisher :
Page : 52 pages
File Size : 24,86 MB
Release : 1995
Category : Geochemistry
ISBN :