Volcanism and Evolution of the African Lithosphere
Author: Luigi Beccaluva
Publisher: Geological Society of America
Published: 2011-01-01
Total Pages: 342
ISBN-13: 0813724783
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Author: Luigi Beccaluva
Publisher: Geological Society of America
Published: 2011-01-01
Total Pages: 342
ISBN-13: 0813724783
DOWNLOAD EBOOKAuthor: Helga De Wall
Publisher:
Published: 2001
Total Pages: 302
ISBN-13:
DOWNLOAD EBOOKAuthor: Monica Heilbron
Publisher: Springer
Published: 2016-12-05
Total Pages: 326
ISBN-13: 3319017152
DOWNLOAD EBOOKThe region of the São Francisco river valley in eastern Brazil encompasses two main components of the geologic framework of the South American continent: the São Francisco craton and its marginal orogenic belts. Cratons, as the oldest, differentiated and relatively stable pieces of the continental lithosphere, preserve a substantial part of the Earth's memory. Orogenic belts, on the other hand, record collisional processes that occurred during a limited time span. Because of their topographic relief, mountain belts developed along craton margins provide however access to rock successions not exposed in the low lands of the adjacent cratons. The combination of geologic information obtained in cratonic domains and their marginal orogenic belts thus form the basis for deciphering substantial periods of Earth’s history. Corresponding to the most intensively studied portion of the Precambrian nucleus of the South American plate, the São Francisco craton and its margins host a rock record that spans from the Paleoarchean to the Cenozoic. Precambrian sedimentary successions that witness ancient Earth processes - many of them of global significance - are especially well preserved and exposed in this region. With all these attributes the São Francisco craton together with its fringing orogenic belts can be viewed as a ‘continent within a continent’ or a ‘continent in miniature’.
Author: D. G. Gee
Publisher: Geological Society of London
Published: 2004
Total Pages: 272
ISBN-13: 9781862391727
DOWNLOAD EBOOKAuthor: Ulf Linnemann
Publisher: Geological Society of America
Published: 2007
Total Pages: 642
ISBN-13: 0813724236
DOWNLOAD EBOOKGeological evolution of middle to late Paleozoic rocks in the Avalon terrane of northern mainland Nova Scotia, Canadian Appalachians: a record of tectonothermal activity along the northern margin of the Rheic Ocean in the Appalachian-Caledonide orogen.
Author: Alain Chauvet
Publisher: MDPI
Published: 2019-04-16
Total Pages: 256
ISBN-13: 3038977845
DOWNLOAD EBOOK"Structural Control” remains a crucial point that frequently lacks in any scientific and/or economic analysis of ore deposits, whatever their type and class. The case of lode deposits is exemplary, although also other deposits, like breccia pipe, stockwerk, massive sulphides, skarn, etc., can, surprisingly, be concerned. Several concepts like the gold-bearing shear zone have not proven valid during the last few decades in terms of our understanding of gold deposit and have been totally abandoned. Additionally, the relationships between magmatism, regional tectonic context, and mineralization remain uncertain and have been debated in several recent publications. This demonstrates that this issue is still relevant, and its solution may help in the distinction between intrusion-related and orogenic deposits. In this Special Issue, we particularly invite any case study of mineral deposits, in which it has been demonstrated that structural geology may have a significant role in the establishment of the deposit model of formation and/or on exploration and exploitation programs. Examples in which the structural model diverges from those described in the classical literature are particularly welcomed, including studies in which relationships with magmatism can be suspected and/or demonstrated. Indeed, all cases that illustrate concepts that differ from the classic ones and from theoretical models may represent significant contributions to this volume.
Author: Zakaria Hamimi
Publisher: Springer Nature
Published:
Total Pages: 670
ISBN-13: 3031482999
DOWNLOAD EBOOKAuthor: Miloš René
Publisher: BoD – Books on Demand
Published: 2021-03-10
Total Pages: 316
ISBN-13: 1839628502
DOWNLOAD EBOOKGeochemistry includes new contributions to the field of granite rocks geochemistry, mineralogy, petrology and microstructure studies, geochemistry of radioactive isotopes, and geochronology. It contains detailed geochemical, mineralogical, petrological, sedimentological and geostructural studies from Europa, Asia, Africa, South America and Australia Chapters present geochemical exploration methods, isotopic studies, and macro- and microstructural analyses.
Author: Zakaria Hamimi
Publisher: Springer Nature
Published: 2020-09-29
Total Pages: 700
ISBN-13: 3030497712
DOWNLOAD EBOOKThis richly illustrated book provides an overview of the Neoproterozoic Pan-African Belt of Egypt (PABE), which represents the northwestern continuation of the Arabian-Nubian Shield (ANS) and the East African Orogen (EAO). The first chapter offers an introduction to the Turin Papyrus Map and the historical background of the PABE, while the second addresses how the PABE is related to the ANS and EAO. Rock succession of the PABE is dealt with in Chapter 3, while Chapter 4 focuses on Sinai Metamorphic Core Complexes and implications on the break-up of Rodinia. Subsequent chapters discuss a broad range of topics, e.g. ophiolite-dominated suprastructural rocks; volcanosedimentary succession, Neoproterozoic volcanism and volcanic rocks in Egypt; enigmatic issues concerning granite, Dokhan and Hammamat sediments; the lithospheric mantle beneath the Northeast African continent and the mantle section of Neoproterozoic ophiolites from the PABE; sutures, megashears and petrogenetic evolution of the Neoproterozoic rocks of Egypt; and metallic and non-metallic mineral deposits in the PABE, which are covered in extensive detail. The book’s closing chapters discuss the application of remote sensing techniques and anisotropy of magnetic susceptibility (AMS) to decipher the tectonic evolution of the PABE, as well as the use of geophysical data to map structural features and hydrothermal alteration zones in the PABE.
Author: Robert J. Pankhurst
Publisher: Geological Society of London
Published: 2008
Total Pages: 440
ISBN-13: 9781862392472
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