Translated from Russian, this text looks at the development of the earth's crust in the Palaeozoic period and starts from the Vendian to the Late Cambrian period. Moving on to include Ordovician to the mature stage of Caledonian and initial stage of development of Hercynian mobile belts; Silurian-Early Devonian. The completion of development of the Caledonian and early, mature and end stages of the Hercynian mobile belts; the birth of Cimmerian mobile belts and ending with the Palaeozoic.
Translated from Russian, this text looks at the development of the earth's crust in the Palaeozoic period and starts from the Vendian to the Late Cambrian period. Moving on to include Ordovician to the mature stage of Caledonian and initial stage of development of Hercynian mobile belts; Silurian-Early Devonian. The completion of development of the Caledonian and early, mature and end stages of the Hercynian mobile belts; the birth of Cimmerian mobile belts and ending with the Palaeozoic.
This translation discusses historical geotectonics. Contents: Vendian - Late Cambrian. Development of Phanerozoic mobile belts; Ordovician - Mature stage of Caledonian and initial stage of development of Hercynian mobile belts; Silurian-Early Devonian. Completion of development of the Caledonian and early stage of development of Hercynian mobile belts; Middle Devonian-Early Carboniferous. Mature stage of development of Hercynian mobile belts. Inundation of cratons; Middle-Late Carboniferous - Early Triassic. End of development of the Hercynian and birth of Cimmerian mobile belts; General regularities of development of the earth's crust in the Palaeozoic.
Examines the structural evolution of the Earth's crust from the Triassic period to the present. The book describes the patterns of distribution, and the composition and accumulation conditions of formations in the various geological periods in all the continents and oceans.
This memoir is the first to review all of Antarctica’s volcanism between 200 million years ago and the Present. The region is still volcanically active. The volume is an amalgamation of in-depth syntheses, which are presented within distinctly different tectonic settings. Each is described in terms of (1) the volcanology and eruptive palaeoenvironments; (2) petrology and origin of magma; and (3) active volcanism, including tephrochronology. Important volcanic episodes include: astonishingly voluminous mafic and felsic volcanic deposits associated with the Jurassic break-up of Gondwana; the construction and progressive demise of a major Jurassic to Present continental arc, including back-arc alkaline basalts and volcanism in a young ensialic marginal basin; Miocene to Pleistocene mafic volcanism associated with post-subduction slab-window formation; numerous Neogene alkaline volcanoes, including the massive Erebus volcano and its persistent phonolitic lava lake, that are widely distributed within and adjacent to one of the world’s major zones of lithospheric extension (the West Antarctic Rift System); and very young ultrapotassic volcanism erupted subglacially and forming a world-wide type example (Gaussberg).
Hendrix (geology, U. of Montana) and Davis (earth sciences, U. of Southern California) present 19 articles detailing ground-based work on the history of assembly and intracontinental deformation of central and eastern Asia. Chapters look at the structural, thermochronologic, and sedimentary records of the history of Paleozoic assembly in Mongolia and central and western China. Further information is presented on Mesozoic deformation in orogenic belts of central and eastern Asia. Asia's sedimentary basins are examined and the intracontinental deformation they record is documented. Many of these contributions, particularly the papers examining Mongolian geology, are the first ground-based articles written in English. Annotation c. Book News, Inc., Portland, OR (booknews.com)
Geotectonics has a special place among the geological dis ciplines. In addition to ideas based on firmly established facts that constitute lasting scientific values, geotectonics, as a generalizing branch of geology, embraces broad con structions that link the planet's deep interior with its sur face and are largely of a hypothetical character. The inter pretation of the most general matters of the structure and evolution of the globe varies not only from one generation of geologists to another, but even within one generation. The interpretation depends not only, and not so much, on the state of geological knowledge, as on the progress of the related sciences of geophysics and geochemistry. In trying to discover the deep-lying causes of tectonic processes, geotectonics has to unite the results of all the Earth sci ences, converting itself to some extent from a purely geologi cal science into a general physical geographic or geonomic science. The fluidity of the general ideas and the need for joint consideration of the geological, geophysical, and geochemi cal data to substantiate these ideas are the main difficulties facing the author of a textbook on geotectonics. There is undoubtedly, however, a need for a manual of this kind, particularly now when the literature on the various problems of geotectonics has grown so great and so varied in content that it is very difficult for the experienced researcher, let alone the student, to find his way.
Britain, Ireland and their surrounding areas have a remarkably varied geology for so small a fragment of continental crust. This region contains a fine rock record from all the geological periods from Quaternary back to Cambrian, and a less continuous but still impressive catalogue of events back through nearly 2500 million years of Precambrian time. This protracted geological history would have been interesting enough to reconstruct if it had been played out on relatively stable continental crust. However, Britain and Ireland have developed instead at a tectonic crossroads, on crust traversed intermittently by subduction zones and volcanic arcs, continental rifts and mountain belts. The resulting complexity makes the geological history of this region at once fascinating and perplexing. Geological History of Britain and Ireland tells the geological story of the region at a level accessible to undergraduate geologists, as well as to postgraduates, professionals or informed amateurs. The book takes a multi-disciplinary rather than a purely stratigraphical approach, and aims to bring to life the processes behind the catalogue of historical events. Full coverage is given to the rich Precambrian and Early Palaeozoic history, as well as to later events more relevant to hydrocarbon exploration. The book is profusely illustrated and contains guides to further reading and full references to data sources, making it an essential starting point for more detailed studies of the regional geology. All British Earth science undergraduates will be required to spend some time studying British Geological History, and this book will be the only one available to British undergraduates The book takes a process-based approach, rather than simply describing the regional stratigraphy Lavishly illustrated with high-quality diagrams
