The Origin and Evolution of the Witwatersrand Basin and Its Mineralization : Results of Research PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download The Origin and Evolution of the Witwatersrand Basin and Its Mineralization : Results of Research PDF full book. Access full book title The Origin and Evolution of the Witwatersrand Basin and Its Mineralization : Results of Research by . Download full books in PDF and EPUB format.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 310
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 310
Get Book Here
Book Description
Author: T. S. McCarthy
Publisher:
ISBN:
Category :
Languages : en
Pages : 310
Get Book Here
Book Description
Author:
Publisher:
ISBN: 9781868141739
Category : Geology
Languages : en
Pages : 310
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 732
Get Book Here
Book Description
Author: Geological Society of London
Publisher: Geological Society of London
ISBN: 9781862391826
Category : Nature
Languages : en
Pages : 286
Get Book Here
Book Description
Mineral deposits are not only primary sources of wealth generation, but also act as windows through which to view the evolution and interrelationships of the Earth system. Deposits formed throughout the last 3.8 billion years of the Earth's history preserve key evidence with which to test fundamental questions about the evolution of the Earth. These include: the nature of early magmatic and tectonic processes, supercontinent reconstructions, the state of the atmosphere and hydrosphere with time, and the emergence and development of life. The interlinking processes that form mineral deposits have always sat at the heart of the Earth system and the potential for using deposits as tools to understand that evolving system over geological time is increasingly recognized. This volume contains research aimed both at understanding the origins of mineral deposits and at using mineral deposits as tools to explore different long-term Earth processes.
Author: Gordon R. Osinski
Publisher: Geological Society of America
ISBN: 0813725186
Category : Science
Languages : en
Pages : 236
Get Book Here
Book Description
In this volume, the geologic and planetary science communities explore impact events and how they affected the evolution of Earth and other planetary bodies. these papers are the outcome of a conference held every five years.
Author: W. U. Reimold
Publisher: Geological Society of America
ISBN: 0813724058
Category : Science
Languages : en
Pages : 418
Get Book Here
Book Description
"This Special Paper presents a collection of 19 papers contributed to a joint Field Forum organized by the Geological Society of America and the Geological Society of South Africa in July 2004 in the Barberton Greenstone Belt and the Vredefort Dome, South Africa. The papers cover a wide variety of themes, including Archean and Proterozoic crust formation and geodynamics (with an appraisal of evidence of Archean subduction processes); the significance of impacts in the evolution of the early Earth's crust; traces of early life in Archean environments of Australia and South Africa and related studies of depositional environments; and processes affecting the giant Witwatersrand gold deposit."--Publisher's website.
Author: W. U. Reimold
Publisher: Geological Society of America
ISBN: 0813724651
Category : Science
Languages : en
Pages : 676
Get Book Here
Book Description
Proceedings of the Fourth International Conference on Large Meteorite Impacts and Planetary Evolution held at the Vredefort Dome, South Africa, in Aug. 2008.
Author: Christian Koeberl
Publisher: Springer Science & Business Media
ISBN: 9783540241812
Category : Science
Languages : en
Pages : 588
Get Book Here
Book Description
A collection of international contributions presenting current knowledge of impact tectonics, geological and geophysical investigations of terrestrial impact structures, and suggested new impact structures, resulting from the IMPACT program.
Author: Andrew Y. Glikson
Publisher: Springer
ISBN: 331974545X
Category : Science
Languages : en
Pages : 231
Get Book Here
Book Description
This book presents a comprehensive overview of Australian impact structures and related mineralization, including a discussion of the significance of many of these structures for crustal evolution. The book focuses in particular on Archaean impact ejecta/fallout units in the Pilbara Craton of Western Australia, large exposed and buried impact structures, and on the geophysical evidence for possible to probable impact structures. Thanks to their long-term geological stability, Precambrian and younger terrains in the Australian continent contain 38 confirmed impact structures and 43 ring and dome structures, many of which constitute possible to probable asteroid impact structures. The impact structures have been the subject of more than half a century of studies and range from several tens of meter-large craters to buried structures larger than 100 km in diameter. Discoveries of impact fallout units in the Pilbara Craton have defined the Pilbara as one of the two best documented terrains where Archaean impact ejecta/fallout deposits are identified, the other terrain being the Kaapvaal Craton in southern Africa. A synthesis of evidence from both cratons indicates periods of large asteroid bombardments during ~3.47 – 2.48 billion years-ago, including peak bombardment about 3.25—3.22 billion years-ago. The latter period coincides with an abrupt transformation of an early Archaean granite-greenstone crust to mid to late Archaean semi-continental crustal regimes, underpinning the significance of heavy asteroid impact events for crustal evolution. Apart from proven impact structures, Australian terrains display a range of circular features, including morphological and drainage rings, circular lakes, volcanic craters, tectonic domes, oval granite bodies, mafic igneous plugs, salt diapirs, and magnetic, gravity and seismic anomalies, many of which are of a likely impact origin. Thermal and hydrothermal processes associated with impact cratering bear important consequences for the formation of mineral deposits, such as Ni at Sudbury, Pb-Zn at Siljan and Kentland. Impact structures may also provide sites for the accumulation of hydrocarbons, whereas in some instances fracturing associated with impact structures allows outward migration of oil and gas.
