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De Wever's ode to the invisible world around us allows readers to peer directly into a minute microcosm with massive implications, even traversing eons to show us how life arose on Earth.
Radiolaria are a very diverse marine siliceous microplankton group that have existed at least snice the Cambrian to the recent. This volume gives a representative view of research topics discussed at the 10th International Meeting of Radiolarian Palaeontologists. The articles of this volume cover mainly radiolarian biochronology and radiolarian fauna changes.
''A voluminous encyclopedia of Tethyan geology and, as such, it provides an invaluable source of information for those interested in this region, and Earth history in general...The book is a must for the libraries of universities and geologic institutions.'' --- Palaios, October 1997 Volume 8 focuses on the Tethys oceanic realm and introduces new concepts such as 'transit plates' and 'seuils lithospheriques.' Contributors include new guides to understanding the distribution of Tethyan mineral and organic resources, and present insights into the role of carbonate platforms. Chapters are abundant with maps and illustrations.
Because of the biological origin of many siliceous deposits, their geochemical transformation in the marine environment, and their occurrence in many formations around the world, oceanographers, paleontologists, geologists, geochemists, and sedimentologists are working closely together to trace the evolution of such deposits. In this book, leading experts from all of these disciplines present new data on fine-grained deposits such as chert, primarily of the Tethys region but also of the Pacific. Much of the information presented here was gathered recently in coordinated international research projects and is made available in English for the first time.
Synthèse de 11 rapports thématiques qui traite des découvertes majeures dans les sciences et techniques, en particulier dans les sciences de la vie. Donne des recommandations visant à adapter le système français de recherche-développement et d'enseignement aux nouvelles données scientifiques et économiques.
La science et la technologie sont portées actuellement par un essor économique fort, par des révisions stratégiques globales liées à la fin de la guerre froide et à la mondialisation de l'économie et, surtout, par des découvertes majeures dans les sciences et techniques de l'information et de la communication et dans les sciences de la vie. Dans ce paysage très évolutif, le gouvernement français, à l'occasion du Comité interministériel de la recherche scientifique et technique du 15 juillet 1998, a retenu la proposition du Ministre de l'Education nationale, de la Recherche et de la Technologie de confier à l'Académie des sciences le soin d'établir un rapport sur l'état de ...