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Our aim in writing this book is to try to show how igneous rocks can be persuaded to reveal some ofthe secrets of their origins. The data of igneous rocks consist of field relations, texture, mineralogy, and geochemistry. Additionally, experimental petrology tells us how igneous systems might be expected to behave. Working on this material we attempt to show how hypotheses concerning the origins and evolution of magmas are proposed and tested, and thus illuminate the interesting and fundamental problems of petrogenesis. The book assumes a modest knowledge of basic petro graphy, mineralogy, classification, and regional igneous geology. It has a role complementary to various established texts,...
Our aim in writing this book is to try to show how igneous rocks can be persuaded to reveal some ofthe secrets of their origins. The data of igneous rocks consist of field relations, texture, mineralogy, and geochemistry. Additionally, experimental petrology tells us how igneous systems might be expected to behave. Working on this material we attempt to show how hypotheses concerning the origins and evolution of magmas are proposed and tested, and thus illuminate the interesting and fundamental problems of petrogenesis. The book assumes a modest knowledge of basic petro graphy, mineralogy, classification, and regional igneous geology. It has a role complementary to various established texts,...
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While rapid decompression of the mantle beneath rifts often precipitates partial melting, much more extensive melting may be produced in mantle plumes. This volume features contributions by distinguished researchers that report the generation, migration, and geological consequences of such melts. Topics include melt geometry and mantle metasomatism, melt migration and mantle heterogeneity beneath oceanic islands, intershield geochemical differences among Hawaiian volcanoes, and continental magmatic underplating, to name but a few. Researchers and students in geology and geophysics will find this book of substantial interest.
Contains a history of earth sciences, providing definitions and explanations of related topics, plus brief biographies of scientists of the twentieth century.