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411 समाचार
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411 REFERENCE · Wikibooks

A Chronological Survey of Sedimentary Landforms in the Continental United States

Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.

Advanced A Chronological Survey is ultimately intended to serve as the companion and reference volume to a larger work entitled Introduction to Stratigraphy and Sedimentation. The Survey will explore the environmental conditions that existed during each Geologic time period from the Cambrian to the present, and will select one or more localities for each time period to examine in detail. We will not cover the Precambrian at this time, but may add chapters on that later. Together, these works are a massive undertaking that will require much time to complete. The primary author welcomes contributions from others! Contents right|Geologic Time Scale 6 17 December 2008Introduction The Cenozoic 0 17 December 2008Quaternary 0 17 December 2008Neogene 0 17 December 2008Paleogene 0 17 December 2008The KT Boundary The Mesozoic 0 17 December 2008Cretaceous 0 17 December 2008Jurassic 0 17 December 2008Triassic 0 17 December 2008The PT Boundary The Paleozoic 0 17 December 2008Permian 0 17 December 2008Pennsylvanian 0 17 December 2008Mississippian 0 17 December 2008Devonian 0 17 December 2008Silurian 0 17 December 2008Ordovician 9 17 December 2008Cambrian Geology C 25%