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Sedimentology Of The Squantum Tillite Boston Basin Usa
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Book Synopsis Sedimentology of the Squantum "tillite", Boston Basin, USA by : Shannon Leigh Carto
Download or read book Sedimentology of the Squantum "tillite", Boston Basin, USA written by Shannon Leigh Carto and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Gaskiers glaciation (c. 580 Ma) has been classically traced along the Neoproterozoic Avalonian-Cadomian Terranes, which are now found scattered around the North Atlantic Ocean. Around 625 Ma these terranes were composed of volcanoes and arc-type basins. 'Till-like' diamictite horizons identified within these basins have been used as evidence for a 'Snowball Earth-type' glaciation at 580 Ma. However, others argue that these deposits are non-glacial debris flow deposits. To test the non-glacial interpretation of these deposits, a detailed sedimentological and basin analysis was conducted on the Neoproterozoic Squantum Member that occurs conformably with the volcanic-sedimentary rocks of the Boston Bay Group (eastern Massachusetts); this deposit is one of the most referenced 'tillite' deposits for the Gaskiers glaciation. This thesis shows that the 'tillites' of this succession are volcanically-influenced non-glacial debrites. Using the Lesser Antilles Arc and the adjacent Grenada Basin in the Caribbean Sea as a modern depositional analogue for the Avalonian-Cadomian Terranes, this study further reveals that debris flow facies types (diamicts) comparable to those of the Avalonian-Cadomian Terranes are produced at this modern arc and are recorded in the fill of the Grenada Basin. A similar study was conducted on the modern diamicts produced at the heavily glaciated Mount Rainier volcano (Washington, USA), revealing that despite the presence of local glaciers, debris flow is the dominant process depositing diamicts due to eruptions and flood events. The major thrust of this thesis is that it highlights the key role of tectonics and volcanism, not glaciation, in producing the diamictites of the Avalonian-Cadomian Terranes, and the importance of examining Neoproterozoic diamictite facies in their wider sedimentary, stratigraphic and tectonic context.
Book Synopsis The Geological Record of Neoproterozoic Glaciations by : Emmanuelle Arnaud
Download or read book The Geological Record of Neoproterozoic Glaciations written by Emmanuelle Arnaud and published by Geological Society of London. This book was released on 2011 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, interest in Neoproterozoic glaciations has grown as their pivotal role in Earth system evolution has become increasingly clear. One of the main goals of the IGCP Project number 512 was to produce a synthesis of newly available information on Neoproterozoic successions worldwide. This Memoir consists of a series of overview chapters followed by site-specific chapters. The overviews cover key topics including the history of research on Neoproterozoic glaciations, identification of glacial deposits, chemostratigraphic techniques and datasets, palaeomagnetism, biostratigraphy, geochronology and climate modelling. The site specific chapters include reviews of the history of research on these rocks and up-to-date syntheses of the structural framework, tectonic setting, palaeomagnetic & geochronological constraints, physical, biological, and chemical stratigraphy, and descriptions of the glaciogenic and associated strata, including economic deposits.
Download or read book Till written by David J. A. Evans and published by John Wiley & Sons. This book was released on 2017-10-16 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides the first comprehensive review of the current state of the science on tills It is critical that glacial scientists continue to refine their interpretations of ancient archives of subglacial processes, specifically those represented by tills and associated deposits, as they form the most widespread and accessible record of processes at the ice-bed interface. Unfortunately, despite a long history of investigation and a lexicon of process-based nomenclature, glacial sedimentologists have yet to reach a consensus on diagnostic criteria for identifying till genesis in the geological record. What should be called till? Based on the author’s extensive field research, as well as the latest literature on the subject, this book attempts to provide a definitive answer to that question. It critically reviews the global till literature and experimental and laboratory-based assessments of subglacial processes, as well as the theoretical constructs that have emerged from process sedimentology over the past century. Drawing on a wide range of knowledge bases, David Evans develops a more precise, contemporary till nomenclature and new investigatory strategies for understanding a critical aspect of glacial process sedimentology. Provides an in-depth discussion of subglacial sedimentary processes, with an emphasis on the origins of till matrix and terminal grade and the latest observations on till evolution Describes contemporary laboratory and modelling experiments on till evolution and techniques for measuring strain signatures in glacial deposits Develops an updated till nomenclature based on an array of knowledge bases and describes new strategies for field description and analysis of glacial diamictons Written by an internationally recognised expert in the field, this book represents an important step forward in the modern understanding of glacial process sedimentology. As such, Till: A Glacial Process Sedimentology is an indispensable resource for advanced undergraduates and researchers in sedimentology, glacier science and related areas.
Book Synopsis Geology of the Composite Avalon Terrane of Southern New England by : Anthony D. Socci
Download or read book Geology of the Composite Avalon Terrane of Southern New England written by Anthony D. Socci and published by Geological Society of America. This book was released on 1990 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies in New England Geology by : Paul C. Lyons
Download or read book Studies in New England Geology written by Paul C. Lyons and published by Geological Society of America. This book was released on 1976-01-01 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Deep Time Analysis by : Mark A.S. McMenamin
Download or read book Deep Time Analysis written by Mark A.S. McMenamin and published by Springer. This book was released on 2018-03-14 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a series of case studies, the book demonstrates the power of dynamic analysis as applied to the fossil record. The book considers how we think about certain types of paleontological questions and shows how to answer them. The analytical tools presented here will have wide application to other fields of knowledge; as such the book represents a major contribution to the deployment of modern scientific method as it builds on author's previous book, Dynamic Paleontology. Students and seasoned professionals alike will find this book to be of great utility for refining their approach to their ongoing and future research projects.
Book Synopsis Geology of the Boston Basin by : William Otis Crosby
Download or read book Geology of the Boston Basin written by William Otis Crosby and published by . This book was released on 1900 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Professional Paper written by and published by . This book was released on 1937 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Bedrock Geology of Massachusetts by :
Download or read book The Bedrock Geology of Massachusetts written by and published by . This book was released on 1991 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis North-Eastern Section of the Geological Society of America by : David C. Roy
Download or read book North-Eastern Section of the Geological Society of America written by David C. Roy and published by Geological Society of America. This book was released on 1987 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Abstracts of North American Geology by : Geological Survey (U.S.)
Download or read book Abstracts of North American Geology written by Geological Survey (U.S.) and published by . This book was released on 1969-07 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by and published by . This book was released on 1932 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey Bulletin written by and published by . This book was released on 1966 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geology of Massachusetts and Rhode Island by : Benjamin Kendall Emerson
Download or read book Geology of Massachusetts and Rhode Island written by Benjamin Kendall Emerson and published by . This book was released on 1917 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Maritime Sediments and Atlantic Geology by :
Download or read book Maritime Sediments and Atlantic Geology written by and published by . This book was released on 1987 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Boston Through the Ages by : Irving Ballard Crosby
Download or read book Boston Through the Ages written by Irving Ballard Crosby and published by . This book was released on 1928 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Appalachian-Ouachita Orogen in the United States by : Robert D. Hatcher, Jr.
Download or read book The Appalachian-Ouachita Orogen in the United States written by Robert D. Hatcher, Jr. and published by Geological Society of America. This book was released on 1989 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
