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This book reviews advances in understanding of the past ca. two million years of Earth history - the Quaternary Period - in the United States. It begins with sections on ice and water - as glaciers, permafrost, oceans, rivers, lakes, and aquifers. Six chapters are devoted to the high-latitude Pleistocene ice sheets, to mountain glaciations of the western United States, and to permafrost studies. Other chapters discuss ice-age lakes, caves, sea-level fluctuations, and riverine landscapes. With a chapter on landscape evolution models, the book turns to essays on geologic processes

Geology, Stratigraphic --- Geology --- Stratigraphie --- Géologie --- Quaternary Period

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Geology, Stratigraphic --- Stratigraphie --- Age of rocks --- Rocks --- Stratigraphic geology --- Physical geology --- Age

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Precambrian of the Northern Hemisphere

Geology, Stratigraphic --- Geology --- Stratigraphie --- Géologie --- Issue --- Pre-Cambrian --- Precambrian --- Geognosy --- Geoscience --- Earth sciences --- Natural history --- Amérique du nord --- Asie --- Europe dans son ensemble --- Geologie regionale --- Precambrien --- Stratigraphie etudes regionales

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Recent developments have shown that many full and partial ophiolites are preserved in Precambrian cratons. This book provides a comprehensive description and discussion of the field aspects, geochemistry, geochronology and structure of the best of these ophiolites. It also presents syntheses of the characteristics of ophiolites of different ages, and an analysis of what the characteristics of these ophiolites mean for the thermal and chemical evolution of the earth. This title emphasizes new studies of Precambrian Geology that have documented ophiolites, ophiolitic fragments, and oph

Geology, Stratigraphic --- Ophiolites --- Stratigraphie --- Geology, Stratigraphic. --- Ophiolites. --- GG Precambrian --- Igneous rocks --- Age of rocks --- Rocks --- Stratigraphic geology --- Physical geology --- Age

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Earth's Oldest Rocks provides a comprehensive overview of all aspects of early Earth, from planetary accretion through to development of protocratons with depleted lithospheric keels by c. 3.2 Ga, in a series of papers written by over 50 of the world's leading experts. The book is divided into two chapters on early Earth history, ten chapters on the geology of specific cratons, and two chapters on early Earth analogues and the tectonic framework of early Earth. Individual contributions address topics that range from planetary accretion, a review of Earth meteorites, significance and com

GG Precambrian --- RMCA --- Geology, Stratigraphic --- Geodynamics. --- Stratigraphie --- Géodynamique --- Dynamic geology --- Tectonophysics --- Geophysics --- Pre-Cambrian --- Precambrian --- Geodynamics