Author:
Publisher:
ISBN: 9781868141739
Category : Geology
Languages : en
Pages : 310

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Book Description

Author: T. S. McCarthy
Publisher:
ISBN:
Category :
Languages : en
Pages : 310

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Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 310

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Book Description

Author: Geological Society of London
Publisher: Geological Society of London
ISBN: 9781862391826
Category : Nature
Languages : en
Pages : 286

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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:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 732

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Book Description

Author: Gordon R. Osinski
Publisher: Geological Society of America
ISBN: 0813725186
Category : Science
Languages : en
Pages : 236

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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: Selley, Richard C.
Publisher: Routledge
ISBN: 1135075794
Category : Science
Languages : en
Pages : 328

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Book Description
This edition retains the case history approach to emphasize the subsurface diagnosis of environments using seismic and geophysical well logs and their application to petroleum exploration and production. This book should be of interest to undergraduates in sedimentology and petroleum geology.

Author: Andrew Y. Glikson
Publisher: Springer
ISBN: 331974545X
Category : Science
Languages : en
Pages : 231

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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.

Author: J. R. F. Handley
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 248

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Book Description

Author: Bastien Linol
Publisher: Springer
ISBN: 3319408593
Category : Science
Languages : en
Pages : 242

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Book Description
This book describes the latest research on the geological, geochemical, geochronological, biological, and geomorphic evolution of the unique and relatively pristine landscape of the Cape Mountains and the Karoo Basin, a region in South Africa that is currently being targeted for shale gas exploration and development. With up-to-date graphics, maps, drill-core and seismic data, it offers the latest observations and synthesis, and highlights areas of ongoing research. The work presented also considers a wider connection of the Cape-Karoo system to other basins in Central Gondwana, including South America, thus following in the footsteps of A. L. du Toit. Clearly, there is still much to be learned before shale gas development can be considered, and this book provides some timely perspectives.