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Buried soils (paleosols) are becoming widely recognized in sedimentary rock sequences and are generating much interest among Earth scientists. One reason why paleosols have not been widely recognized until recently is that soil scientists have had little opportunity to consider paleosols in sedimentary and metamorphic rocks. Another reason may be the profound alteration of paleosols after burial, so that few paleosols look exactly like surface soils. Colour is an obvious and important feature of paleosols, which are among the most colourful of all rocks, as can be seen from Petrified Forest and Badlands National Parks, USA. With its spectacular colour plates this book serves as an introducti...
A student-friendly textbook that describes ancient soils, how they may be identified, and their use in paleoenvironmental reconstruction Ancient soils contain vital mineralogical, geochemical, textural, and paleontological information about the continental environments in which they formed. Advances in isotope geochemistry and sequence-stratigraphic models allow evermore detailed reconstructions of environmental change from paleosols, and new insights into such diverse topics as atmospheric chemistry, global change, paleoecology, geobiology and mass extinction. This book educates readers about the field of paleopedology and how it remains a key area of investigation for geologists and enviro...
In this book, the habitats of our apelike ancestors of the Miocene epoch -- some 7 to 20 million years ago -- are re-examined from the perspective of knowledge yielded by the buried fossil soils in which they have been found. Fossilized soils, or paleosols, are distinctive layers within a sedimentary or volcanic sequence, and they also can be clues to former ecosystems and other aspects of paleoenvironments. Here the author characterizes in detail some 20 kinds of paleosols from the Kenyan and Pakistani localities for the dryopithicane and ramapithicine apes made famous by L.S.B. Leakey and D.R. Pilbeam. The extensive evidence cited allows for the reassessment of vegetation and landscape features of ancient tropical sites that are the source of much of what is known about our remote Miocene ancestors. The text also provides a basis for understanding paleosols formed in all tropical climates and alluvial settings, and offers a model for future research on human evolution and major events in the geological history of soils. It is a valuable resource for paleontologists, anthropologists, and soil scientists.
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From Uluru to the Great Dividing Range, The Geology of Australia explores the timeless forces that have shaped this continent.
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