Geologi, geomorfologi og lithosfæren

This book is the second volume of Diamonds: Art, Science and Innovation and continues to delve into the fascinating world of diamonds and provides readers with a fuller understanding of their diversity, history and importance in various fields of life and art. In it, we will explore the reasons for the variety of diamond colors, the process of diamond formation, and the unique inclusions in diamonds, touching on the topic of diamond mining and their future prospects for use.

Grand Cayman, Little Cayman, and Cayman Brac are, in reality, the summits of independent fault blocks that rise from the depths of the Caribbean Sea. This book traces the geological evolution of these islands over the last 30 to 35 million years. The balance between deposition of carbonate sediments and karst development of the exposed land was dictated by the interaction between ever-changing sea levels and vertical tectonic movement of the fault blocks. Today, drinking water needed for the ever-increasing populations of the islands is supplied largely by desalinization plants that are located in accord with a detailed knowledge of the bedrock.This book is based on an extensive data base that has been assembled over the last 40 years of field work and laboratory analyses. Noteworthy aspects of this database include:Approximately 60 visits to the islands over last 40 years - sampling and documentation of virtually every accessible outcrop on the islands (including some that no longer exist). Most samples have been fully documented petrographically and geochemically.Data from 120 wells that have been drilled to depths up to 245 m (most less than 125 m). Wells have been cored and/or chip sampled. Full documentation of drilling histories, XRD analyses of samples, extensive geochemical analyses for major and minor elements, stable isotopes, 87Sr/86Sr ratios, and Rare Earth Elements from numerous samples.Mapping and sampling of modern sediments, including sediment cores, from most of the lagoons around Grand Cayman.Extensive thin section petrography, scanning electron microscope, and electron microprobe analyses of the dolostones and limestones that form the bedrock of the islands.Samples and data collected from numerous caves on Grand Cayman and Cayman Brac have been used to track their developmental history.Detailed analyses of phosphates collected from Little Cayman.Detailed analyses of terra rossa collected from each of the islands.

The book provides a characteristic of sulfate karst, the features of its distribution and development in the Perm region, based on their own research and generalization of data accumulated in recent years. An updated zoning of the territory is given, partly based on the use of GIS technologies. This book also offers a detailed description of areas with characteristics of geological and hydrogeological conditions for the development of karst and karst phenomena. Besides, it also provides a detailed description of a number of caves, information about specially protected natural areas associated with sulfate karst and new unique objects that need protection. The book describes the influence of karst on economic activity and the ecological situation.The publication is intended for geologists, geographers, ecologists, karst scientists, speleologists, local historians, teachers and students of specialties related to earth sciences, as well as a wide range of karst and cave enthusiasts.

Rocks and Their Origins, a classical and rare book that has been considered essential throughout human history, so that this work is never forgotten, we at Alpha Editions have made efforts in its preservation by republishing this book in a modern format for present and future generations. This whole book has been reformatted, retyped and designed. These books are not made of scanned copies of their original work and hence the text is clear and readable.

This book addresses the various factors affecting fluvial systems, the processes governing them, system responses arising from human-nature interventions, and geospatial and geo-ecological modeling to understand system behaviour better and restore degraded ecosystems around the globe. Thanks to their hydrological and agro-ecological advantages, humans have settled along riverbanks since the dawn of civilization. Thus, the ancient "e;ecumene"e; (settlements) were located near major rivers worldwide. This legacy of river-based civilizations continues to this day in many forms. However, in the course of the 'Anthropocene' era, countless fluvial systems have been altered by human interventions in the form of large-scale dams and barrages, changes in land use and land cover, road-stream crossings, mining of sand and gravel, mushrooming of brickfield, expansion of modern agriculture, industrial growth, and urbanization. Thus, the present-day development pattern threatens fluvial systems, especially riverine morphology and ecosystems. In brief, human-induced morphological changes, water pollution, eutrophication, and related damages to aquatic organisms are the major threats to fluvial systems. Thus, maintaining the 'environmental flow' of the world's major rivers to preserve the proper functioning of riverine ecosystems and promote sustainable development is a global challenge.

This work focuses on the potential impact of climate change on soil erosion in a monsoon-dominated sub-tropical region. Water-induced soil erosion due to extreme rainfall during the monsoon period is a major problem worldwide, from different environmental and socio-economic perspectives. This study region covered (South Bengal) is one of the fertile agricultural belts that produces a good amount of produce and contributes to the country's GDP. However, the rate of agricultural output has decreased rapidly in recent times due to a decline in soil fertility.The monsoon-dominated sub-tropical region has unique characteristics in terms of seasonal temperature fluctuations and the availability of rainfall events. The sub-tropical region is densely populated, with the majority of the population relying on rain-fed agricultural production systems. The declining rate of agricultural production has also established that soil fertility is declining and soil erosion is increasing. Numerous studies show that soil erosion is the major cause of the region's rapidly increasing trend of land degradation. A homeostatic mechanism cannot replace soil erosion, and a gap arises between soil erosion and regolith formation. Extreme changes in land use and land cover, population growth and the lacking support for traditional agricultural practices and management practices can accelerate the rate of soil erosion and its associated reservoir sedimentation in most countries of the tropical and sub-tropical environment. Quantitative information with maximum possible accuracy through validation regarding soil loss can be an essential part of the appropriate and sustainable soil and water conservation planning. The precise aspects of modern day management strategies are soil erosion susceptibility mapping using empirical and semi-empirical models in a GIS platform or the use of probability statistics.The main objective of this work is to propose the most suitable development strategies considering the amount of soil erosion for the present and future periods. Extensive field research has been done to identify the support practice factor that the local stakeholders adopt in this region. 

The volume of Springer Proceedings in Geoarchaeology and Archaeological Mineralogy contains selected papers presented at the 9th Geoarchaeology Conference, which took place during September 19¿22, 2022, at the South Urals Federal Research Center, the Ural Branch of the Russian Academy of Sciences, Miass, Russia. The Proceedings unite studies in the fields of archeometry, geoarchaeology, and ancient technologies, based on cases from northern Eurasia, and include archaeometallurgy, stone tools investigation, exploitation of geological resources in the past, bioarchaeology, residue analysis, pottery and lithics investigation, use of the GIS in archaeology. A study of non-organic materials, rocks, minerals, ores, metals, metallurgical slags is a special focus of the book. Many papers also use modern analytical methods of isotopic, chemical, and mineralogical analysis to study the composition and structure of ancient materials and the technological practices of past human populations ofModern Russia, Ukraine, Turkmenistan, Tajikistan, and Mongolia. The volume is intended for archaeologists, historians, museum workers, and geologists, as well as students, researchers from other disciplines, and the general public interested in the interdisciplinary research in the field of archaeology and archaeological materials, strategies and techniques of past quarrying, mining, metallurgy and lithic technologies at different chronological periods in Eurasian steppe and adjacent forest zone.

This book presents select proceedings of the Indian Chemical Engineering Congress (CHEMCON-2021) under the theme "e;Sustainable Utilization of Resources for Chemical Mineral Sectors"e;. It covers broad topics such as chemical reaction and processes, material science and engineering, coal and mineral processing, pyro- and hydro-metallurgical processes, environmental engineering and waste management, advanced engineering, and energy materials. This book is useful for the researchers, professionals, and policymakers interested in sustainable utilization of chemical and mineral resources.

This book presents a summary of high-pressure phase transitions of minerals and related inorganic compounds. The first part reviews the methods to investigate phase transitions by direct high-pressure and high-temperature experiments together with thermodynamic approaches that consist of calorimetric measurements and thermodynamic calculation. In the second part, phase relations and thermodynamic properties of olivine, pyroxene, garnet, spinel, perovskite, rutile, and related inorganic compounds with A2BO4, ABO3, AB2O4, and AO2 stoichiometries are described. Particular emphasis is placed on spinel- and perovskite-structured phases and their high-pressure polymorphs called post-spinel and post-perovskite phases. The last part of the book focuses on phase relations of mantle rocks and on natural high-pressure minerals from the Earth's deep mantle and in shocked meteorites.