Geology of the World's Major Gold Deposits and Provinces PDF Download

Author:
Publisher:
ISBN: 9781629493121
Category : Geology, Economic
Languages : en
Pages : 845

View

Book Description

Author: Steffen Gerd Hagemann
Publisher:
ISBN:
Category : Gold
Languages : en
Pages : 584

View

Book Description

Author: Ted G. Theodore
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 308

View

Book Description

Author: Marco Keersemaker
Publisher: Springer Nature
ISBN: 3030402681
Category : Science
Languages : en
Pages : 97

View

Book Description
This book summarizes the exploration history and provides a framework for assessing the economic potential of the country’s minerals by defining minimal deposit parameters for the various commodities present. Suriname was explored extensively for mineral occurrences in the course of the previous century, indicating the presence of a range of commodities. The country mined and processed bauxite for a century (until 2016), and has an even longer history of small-scale alluvial gold mining; it is currently home to two major gold producers. However, exploration activities have been limited during the past 4 decades as most parts of Suriname’s interior are difficult to access, making geological fieldwork both difficult and expensive. Further, the markets and prices have changed in the interim, which calls for a fresh look at the historic data.

Author: Neil Phillips
Publisher: Springer Nature
ISBN: 981163081X
Category : Science
Languages : en
Pages : 294

View

Book Description
This book addresses the origin of gold deposits to answer questions of science and curiosity. These answers contribute in turn to the improved exploration and mining of gold. Initially there is a summary of the methods used to address the genesis of gold deposits including some of the essential science and concepts. Five basic observations follow that apply to many gold deposits and need to be considered in any genetic ideas. Magmatic processes enriching gold are discussed followed by the role of aqueous fluids during gold deposit formation at elevated temperatures and pressures. Modifying effects after deposit formation include high-grade metamorphism, retrogression, weathering, and erosion. The main types of gold deposits are then explained within the spectrum of viable genetic ideas, with informal names for these examples that include gold-only, gold-plus, Carlin, slate-belt, epithermal, porphyry, iron oxide copper gold, and Archean greenstone. Case histories are included in which the role of gold geology contributed directly to discoveries—one example is at the province-scale and another at the goldfield-scale. Unlike other books on the subject, this one addresses virtually all gold deposit types rather than focusing on one type in isolation. The primary readership includes industry geologists, senior undergraduates, postgraduates, and those with some knowledge of science and an interest in the gold industry.

Author: Mohammed Bouabdellah
Publisher: Springer
ISBN: 3319317334
Category : Science
Languages : en
Pages : 585

View

Book Description
This volume presents an exhaustive overview of major orebodies and mineral deposits of North Africa. It is intended both for academic researchers and especially for exploration geologists interested in mineral exploration in the northern part of the African continent. Recent changes in the mining laws of most countries in this region have encouraged international mining companies to invest in local mineral industries. Accordingly, this volume will be very useful for these professionals, as well as for researchers in the field of economic geology.

Author: Maureen G. Johnson
Publisher:
ISBN: 9781614740179
Category : Technology & Engineering
Languages : en
Pages : 54

View

Book Description
A Reprint of the Original US Geological Survey Bulletin 1348. This publication is a catalog of locations, geology, and production from the placer districts of New Mexico. Over 40 New Mexico Placer locations covered in this publication.

Author: Edwin W. Tooker
Publisher:
ISBN:
Category : Disseminated deposits
Languages : en
Pages : 168

View

Book Description

Author: Maureen G. Johnson
Publisher: Forgotten Books
ISBN: 9780331313765
Category :
Languages : en
Pages : 146

View

Book Description
Excerpt from Placer Gold Deposits of Nevada Following the discovery of placers at Gold Canyon, placer discoveries in Nevada were broadly in three periods: the 1860's to 1880's, when many small deposits throughout the State were discovered and sporadically worked and several large placers were discovered and extensively worked; the short period between 1906 and 1910, when very rich placers were dis covered at Lynn, Battle Mountain, Manhattan, and Round Mountain; the early 1930's, when economic conditions created by the depression caused a renewed interest in placer mining, and many individuals sought, and a few discovered, new placer areas throughout the State. The location of the placers described in this report is shown on plate 1. Very little factual information can be found about the early periods of placer mining in Nevada. For many placers, the only reports available are hearsay estimates of production and speculations about the extent of the placer ground based on remnants of placer pits, shafts, and other workings. Many of the placers said to have had a high production between 1860 and 1890 were worked by Chinese miners who came to Nevada dur ing the building of the railroads and stayed on to work at mining and other activities. The Chinese were reputed to be secretive with their earnings from the placers and did not ship the gold to the mint by Wells Fargo or other shippers. They worked the gravels very thoroughly in areas where American miners did not wish to expend great labor to win the gold. The placers in the Sierra and Spring Valley districts, Pershing County, were worked by Chinese miners; they have a very high estimated production before 1900 and a comparatively low known production since that time. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Wayne David Goodfellow
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1080

View

Book Description