1# Library to Find Best eBook for Read
Author : Mark J. Johnsson
Release : 1993-01-01
Genre : Science
Kind : eBook
Book Rating : 845/5 ( reviews)
Book Synopsis Processes Controlling the Composition of Clastic Sediments by : Mark J. Johnsson
Download or read book Processes Controlling the Composition of Clastic Sediments written by Mark J. Johnsson. This book was released on 1993-01-01. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marion Eugene Bickford
Release : 2017
Genre : Science
Kind : eBook
Book Rating : 239/5 ( reviews)
Book Synopsis The Web of Geological Sciences by : Marion Eugene Bickford
Download or read book The Web of Geological Sciences written by Marion Eugene Bickford. This book was released on 2017. Available in PDF, EPUB and Kindle. Book excerpt: The web of geological sciences, Special papers 500 and 523, written in celebration of the 125th anniversary of the Geological Society of America.
Author : Steven Earle
Release : 2016-08-12
Genre :
Kind : eBook
Book Rating : 824/5 ( reviews)
Book Synopsis Physical Geology by : Steven Earle
Download or read book Physical Geology written by Steven Earle. This book was released on 2016-08-12. Available in PDF, EPUB and Kindle. Book excerpt: This is a discount Black and white version. Some images may be unclear, please see BCCampus website for the digital version.This book was born out of a 2014 meeting of earth science educators representing most of the universities and colleges in British Columbia, and nurtured by a widely shared frustration that many students are not thriving in courses because textbooks have become too expensive for them to buy. But the real inspiration comes from a fascination for the spectacular geology of western Canada and the many decades that the author spent exploring this region along with colleagues, students, family, and friends. My goal has been to provide an accessible and comprehensive guide to the important topics of geology, richly illustrated with examples from western Canada. Although this text is intended to complement a typical first-year course in physical geology, its contents could be applied to numerous other related courses.
Author : Aubrey Lynn Modi
Release : 2011
Genre :
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Processes Controlling the Composition of First-cycle Sediments Deposited in an Arid-climate, with Implications for Provenance Reconstruction Studies by : Aubrey Lynn Modi
Download or read book Processes Controlling the Composition of First-cycle Sediments Deposited in an Arid-climate, with Implications for Provenance Reconstruction Studies written by Aubrey Lynn Modi. This book was released on 2011. Available in PDF, EPUB and Kindle. Book excerpt: Petrologic analysis of first-cycle clastic sediments derived from a single source in an arid environment provides a means to determine how well they resemble the petrology and geochemistry of their source. The Stepladder Mountains, located in the Mojave Desert of southeastern California, represents a well-controlled location (i.e., arid environment; single, known source; short transport distance) to examine how naturally formed sediments acquire their compositions. Compositional modifications associated with sediment production were resolved through direct examination of the weathered components (regolith, grus, and sediments). Sediment compositions strongly vary by grain size, indicating that, after the source itself, hydrodynamic sorting played the dominant role in shaping the composition of Stepladder sediment. Traditional petrographic and geochemical provenance-seeking indicators were also tested to determine their efficacy. Plots employing major element abundances, including Al2O3- CaO*+Na2O-K2O (A-CN-K) and Al2O3-CaO*+Na2O+K2O-Fe2O3+MgO (A-CNK-FM) ternary plots, proved to be the most accurate at identifying the lack of chemical weathering and the importance of sediment sorting in the production of Stepladder sediments. Plots using trace and rare earth element concentrations reveal the significant modifications that sorting can have on sediment composition. All of the Stepladder sediments are enriched in immobile transition metals, most notably Sc, Cr, Ni, and Co, and even though the sediment sourced from a single pluton, compositions are consistent with the mixing of 10 - 20 % of a basaltic component. Sediment trace element ratios, including Th/Sc, Cr/Th, La/Sc, Th/Co, and Zr/Sc, can differ from average bedrock by up to a factor of 10. It must be known that moderate variations in composition and elemental ratios can be the result of sorting during sediment transport and do not necessarily indicate the mixing between sources.
Author : José Arribas
Release : 2007-01-01
Genre : Science
Kind : eBook
Book Rating : 201/5 ( reviews)
Book Synopsis Sedimentary Provenance and Petrogenesis by : José Arribas
Download or read book Sedimentary Provenance and Petrogenesis written by José Arribas. This book was released on 2007-01-01. Available in PDF, EPUB and Kindle. Book excerpt:
