Contents: Overview.- Tethyan Siliceous Deposits.- Pacific Siliceous Deposits.- Index.
I: Overview.- 1. Siliceous Deposits of the Tethys and Pacific Regions.- 2. Radiolarian Evidence: Late Cretaceous Through Eocene Ocean Circulation Patterns.- II: Tethyan Siliceous Deposits.- 3. Radiolarians, Radiolarites, and Mesozoic Paleogeography of the Circum-Mediterranean Alpine Belts.- 4. Siliceous Deposits in Yugoslavia: Occurrences, Types, and Ages.- 5. Origin and Tectonic Significance of Radiolarian Chert in the Austroalpine Rifted Continental Margin.- 6. Distribution and Evolution of Siliceous Rocks in Bulgaria.- 7. Early and Late Diagenetic Chert in Carbonate Turbidites of the Senonian Flysch, Northeast Bilbao, Spain.- 8. Radiolarite Sequences of the Subbetic, Betic Cordillera, Southern Spain.- 9. Petrology and Diagenetic Changes in Miocene Marine Diatomaceous Deposits from Zakynthos Island, Greece.- 10. Thermally Induced Silica Transformation in Pliocene Diatomaceous Layers from Aegina Island, Greece.- III: Pacific Siliceous Deposits.- 11. Silicified Wood from the Adoyama Chert, Kuzuh, Central Honshu, and Its Bearing on Compaction and Depositional Environment of Radiolarian Bedded Chert.- 12. Paleoenvironmental Implications of Alaskan Siliceous Deposits.- 13. Length-Slow Chalcedony in Sedimentary Rocks of the Mesozoic Allochthonous Terrane in Central Japan and Its Use for Tectonic Synthesis.- 14. Thermal Alteration of Chert in the Ophiolite Basement of Southern Central America.
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.
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