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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.

Geochemistry --- Geology. Earth sciences --- geochemie --- geografie --- geologie --- aarde (astronomie) --- Gold.

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This book documents and describes 32 natural caves from France and around the globe that have a width larger than 50 m, including data on the largest underground chamber in the world: Sarawak Chamber. Artificial caves are not able to be constructed at these volumes and most of these naturally forming chambers had never been surveyed before with little geological data available. Methodologies for studying these large volume Karst chambers are described and for each site, a survey, a geomorphological sketch, a description and photographic images are provided. The process of the mechanical transportation by underground running water, of an insoluble but erodible rock located below thick limestone roofs via digging, scouring and racking are explained through these example to clarify the genesis of the largest volumes in the world. The purpose of this study was to estimate whether these natural contexts could be transposed to the digging of artificial caverns to accommodate underground nuclear power plants. Indeed, the comparison of the effects of the Lucens nuclear accident with those of Chernobyl and Fukushima shows the whole interest of an underground solution. These examples of natural chambers indisputably show that this is possible.

Geology. Earth sciences --- Physical geography --- geologie --- fysische geografie --- aarde (astronomie) --- geomorfologie --- Hydrogeology. --- Geomorphology. --- Environmental geology.

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The German notion of 'Heimat' is highly subjective, ambiguous and historically charged. Senses of belonging and identity associated with Heimat render the concept vulnerable to appropriation and instrumentalization by different political forces. Thereby, a static and exclusive understanding of Heimat is often depicted. This book drafts a counternarrative to demystify the contested concept. On the one hand, Heimat is conceptualized as spatial through emotional-geographical approaches to human-place relations. And on the other hand, the concept is placed in a global context through the perspective of international migration. The author contributes to the understanding of Heimat as an emotional map of self-location. This subjective map is neither purely static nor dynamic - it is characterized by simultaneities of opposing processes. About the Author Jessica Andel is currently enrolled in the Master's programme "Human Geography: Globalisation, Media and Culture". Since November 2019, she has been working as a student assistant on the Human Geography-team at the Institute of Geography of Johannes Gutenberg University.

Geology. Earth sciences --- Geography --- geografie --- geologie --- aarde (astronomie) --- Belonging (Social psychology) --- National characteristics, German. --- Germany.

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This collection of articles captures and disseminates contemporary perspectives on climate change from an Indian context. Starting with an argument on a new climate deal which highlights the importance of policies and regulations within the climate change debate, some of India’s best-known geologists, meteorologists, climate scientists and archaeologists have put forward their concerns and convictions in this collection. The book covers articles on climate change scenarios, impacts, policies, regulations and protocols as well as geopolitical and geoeconomics implications of climate change over the Indian sub-continent including climatogenic vulnerability analyses of sea level rise (SLR) and crop production assessment. The geological perspectives of climate change over the Indian sub-continent are covered, along with highlighted climate impacts on the chemical weathering and maturity of sediments as well as on the manganese mineralisation in manganiferous quartzite in the Boringpadar-Amath area. The evolution of the monsoon, the most significant event of tropical belt is addressed through lake’s and river’s sediments, assessing the anthropogenic influences. Climatic conditions reconstructed through Quaternary alluvial sediments as proxy indicator of past climatic conditions over the Indian sub-continent are presented. There is also a separate chapter on the role of cosmic radio nuclide in paleoclimatic reconstructions. The inter-relation of climate change and tectonics over the Indian sub-continent is also covered, while the geopolitics on the conflicts of climate change have been discussed in the larger perspective of the South-Asian region.

Economics --- Meteorology. Climatology --- Geology. Earth sciences --- economie --- klimatologie --- geografie --- geologie --- aarde (astronomie) --- Climatic changes --- Government policy.

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This textbook presents an extensive manual of crystallography, including geometric crystallography, crystallochemistry, and crystallophysics. Illustrated with a wealth of figures and diagrams, it offers a thorough introduction to crystals for undergraduate and graduate students interested in learning the essentials and advanced concepts of crystallography. The book begins with basic concepts such as the geometry, morphology and symmetry of lattices, allowing readers to approach the subject from a mathematical point of view, abstracting it from its material content. In turn, the second part focuses on crystallochemistry and explains the differences between ideal and real crystals, and between static and dynamic ones. The third part of the textbook concerns crystallophysics and addresses the electrical, magnetic, mechanical, elastic and optical properties of crystals, as well as the fundamental laws and methods of X-ray diffraction.

Geochemistry --- Geology. Earth sciences --- geochemie --- geografie --- geologie --- aarde (astronomie) --- Crystallography. --- Cristal·lografia