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Author: Zachary Thomas Sickmann
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
From plate tectonics that act over thousands of kilometers and millions of years to sedimentary processes that operate over sub meter and sub annual timescales, provenance data integrates many types of information. The research in this dissertation attempts to advance the understanding of tectonic and sedimentological controls on provenance analysis by examining one modern and one ancient example. The modern example, coastal central California provides the advantage of being a well-studied modern setting for which boundary conditions of source region geology and sediment dispersal patterns are constrained. In the ancient example, the Magallanes-Austral retroarc foreland basin in southern Patagonia, considerable initial work was required to constrain the stratigraphic framework of the basin before provenance patterns and sediment dispersal could be examined in detail. Chapter 1 explores sediment dispersal off the modern coast of central California in an attempt to determine how sediment pathway partitioning and sediment mixing control the expression of provenance signatures. This chapter demonstrates that sediment mixing in the marine realm is an important control on provenance signatures and that submarine canyons and coastal geometries dictate the way sediment dispersal systems are partitioned along narrow-shelf margins. Chapter 2 provides a stratigraphic framework for the Magallanes-Austral foreland basin through field mapping and detrital zircon maximum depositional age calculations. This framework provides the first radiometrically-age-controlled, unified, framework for the basin between 49.5°S and 52°S. The focus of the chapter is constraining the age of the Cerro Fortaleza Formation. This unit had previously been assigned ages ranging from Cenomanian to Maastrichtian. Using detrital zircon maximum depositional ages we constrain the age of the unit to Campanian to Maastrichtian. Refining the age of this unit allows the rest of the stratigraphic framework of the basin to be defined. Chapter 3 is a provenance analysis of the Magallanes-Austral retroarc foreland basin that incorporates previously published provenance data from the basin along with 28 new detrital zircon and 34 new sandstone petrography samples. This analysis is informed by the systematic incorporation of geologic background information with an attempt made to describe sediment dispersal patterns from the whole-basin scale down to individual sediment dispersal systems.
Author: Zachary Thomas Sickmann
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
From plate tectonics that act over thousands of kilometers and millions of years to sedimentary processes that operate over sub meter and sub annual timescales, provenance data integrates many types of information. The research in this dissertation attempts to advance the understanding of tectonic and sedimentological controls on provenance analysis by examining one modern and one ancient example. The modern example, coastal central California provides the advantage of being a well-studied modern setting for which boundary conditions of source region geology and sediment dispersal patterns are constrained. In the ancient example, the Magallanes-Austral retroarc foreland basin in southern Patagonia, considerable initial work was required to constrain the stratigraphic framework of the basin before provenance patterns and sediment dispersal could be examined in detail. Chapter 1 explores sediment dispersal off the modern coast of central California in an attempt to determine how sediment pathway partitioning and sediment mixing control the expression of provenance signatures. This chapter demonstrates that sediment mixing in the marine realm is an important control on provenance signatures and that submarine canyons and coastal geometries dictate the way sediment dispersal systems are partitioned along narrow-shelf margins. Chapter 2 provides a stratigraphic framework for the Magallanes-Austral foreland basin through field mapping and detrital zircon maximum depositional age calculations. This framework provides the first radiometrically-age-controlled, unified, framework for the basin between 49.5°S and 52°S. The focus of the chapter is constraining the age of the Cerro Fortaleza Formation. This unit had previously been assigned ages ranging from Cenomanian to Maastrichtian. Using detrital zircon maximum depositional ages we constrain the age of the unit to Campanian to Maastrichtian. Refining the age of this unit allows the rest of the stratigraphic framework of the basin to be defined. Chapter 3 is a provenance analysis of the Magallanes-Austral retroarc foreland basin that incorporates previously published provenance data from the basin along with 28 new detrital zircon and 34 new sandstone petrography samples. This analysis is informed by the systematic incorporation of geologic background information with an attempt made to describe sediment dispersal patterns from the whole-basin scale down to individual sediment dispersal systems.
Author: Lynne E. Frostick
Publisher: John Wiley & Sons
ISBN: 1444304062
Category : Science
Languages : en
Pages : 531
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Book Description
Stratigraphers and sedimentologists who are presently describing and interpreting the infill of sedimentary basins are generally agreed that it is difficult to disentangle the signatures of tectonic processes from those of climate and eustatic sea level change in the resultant rock succession. Until better criteria are developed to distinguish between the roles played by the major variables, it is still most useful to document and interpret basin-fill architectures where we know, from independent evidence, that one of the main controls is likely to have been a major contributor. This book contains a collection of papers describing situations where the tectonic setting is fairly well established, and it can be assumed that at least the tectonic factor has contributed to the resultant signatures.
Author: Rajat Mazumder
Publisher: Elsevier
ISBN: 0128033878
Category : Science
Languages : en
Pages : 614
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Book Description
Sediment Provenance: Influences on Compositional Change from Source to Sink provides a thorough and inclusive overview that features data-based case studies on a broad range of dynamic aspects in sedimentary rock structure and deposition. Provenance data plays a critical role in a number of aspects of sedimentary rocks, including the assessment of palaeogeographic reconstructions, the constraints of lateral displacements in orogens, the characterization of crust which is no longer exposed, the mapping of depositional systems, sub-surface correlation, and in predicting reservoir quality. The provenance of fine-grained sediments—on a global scale—has been used to monitor crustal evolution, and sediment transport is paramount in considering restoration techniques for both watershed and river restoration. Transport is responsible for erosion, bank undercutting, sandbar formation, aggradation, gullying, and plugging, as well as bed form migration and generation of primary sedimentary structures. Additionally, the quest for reservoir quality in contemporary hydrocarbon exploration and extraction necessitates a deliberate focus on diagenesis. This book addresses all of these challenges and arms geoscientists with an all-in-one reference to sedimentary rocks, from source to deposition. - Provides the latest data available on various aspects of sedimentary rocks from their source to deposition - Features case studies throughout that illustrate new data and critical analyses of published data by some of the world's most pre-eminent sedimentologists - Includes more than 150 illustrations, photos, figures, and diagrams that underscore key concepts
Author: E. Troy Rasbury
Publisher: Geological Society of America
ISBN: 0813724872
Category : Science
Languages : en
Pages : 204
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Book Description
Author: Brian Taylor
Publisher: American Geophysical Union
ISBN: 0875900453
Category : Science
Languages : en
Pages : 420
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Book Description
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 88. This volume focuses on the volcanic, fluid, sedimentary, and tectonic processes occurring in the trencharc-backarc systems of the western Pacific—a natural regional focus for studies of these themes. The results of ocean drilling and associated site surveys in the western Pacific have brought fundamental changes to our understanding of volcanism, crustal deformation, fluid circulation, and sedimentation in active margins and marginal basins. Our goal here is to synthesize the results of ocean drilling in a multi-disciplinary manner, including a comparison of the findings from drilling legs having similar themes, and to emphasize the significance of these results to the broader geoscience community.
Author: Raymond V. Ingersoll
Publisher: Geological Society of America
ISBN: 0813725402
Category : Science
Languages : en
Pages : 768
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Book Description
Through a remarkable combination of intellect, self-confidence, engaging humility, and prodigious output of published work, William R. Dickinson influenced and challenged three generations of sedimentary geologists, igneous petrologists, tectonicists, sandstone petrologists, archaeologists, and other geoscientists. A key figure in the plate-tectonic revolution of the 1960s and 1970s, he explained how the distribution of sediments on Earth's surface could be traced to tectonic processes, and is widely recognized as a founder of modern sedimentary basin analysis. This volume consists of 31 chapters related to Dickinson's research interests; many of the authors are his former students, their students, and their students' students, demonstrating his continuing profound influence. The papers in this volume are an impressive tribute to the depth and breadth of Bill Dickinson's contributions to the geosciences.
Author: Hugh R. Rollinson
Publisher: Routledge
ISBN: 1317898192
Category : Science
Languages : en
Pages : 379
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Book Description
Using Geochemical Data brings together in one volume a wide range of ideas and methods currently used in geochemistry, providing a foundation of knowledge from which the reader can interpret, evaluate and present geochemical data.
Author: Mark J. Johnsson
Publisher: Geological Society of America
ISBN: 0813722845
Category : Science
Languages : en
Pages : 357
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Book Description
Author: Ivano W. Aiello
Publisher: Geological Society of America
ISBN: 0813725569
Category : Science
Languages : en
Pages : 330
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Book Description
Author: Kenneth D. Ridgway
Publisher: Geological Society of America
ISBN: 0813724317
Category : Science
Languages : en
Pages : 676
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Book Description
"The convergent margin of southern Alaska is considered one of the type areas for understanding the growth of continental margins through collisional tectonic processes. Collisional processes that formed this margin were responsible for multiple episodes of sedimentary basin development, subduction complex growth, magmatism, and deformation. Two main collisional episodes shaped this Mesozoic-Cenozoic continental margin. The first event was the Mesozoic collision of the allochthonous Wrangellia composite terrane. This event represents the largest addition of juvenile crust to western North America in the past 100 m.y. The second event is the ongoing collision of the Yakutat terrane along the southeastern margin of Alaska. This Cenozoic event has produced the highest coast mountain range on Earth (Saint Elias Mountains), the Wrangell continental arc, and sedimentary basins throughout southern Alaska. Active collisional processes continue to shape the southern margin of Alaska, mainly through crustal shortening and strike-slip deformation, large-magnitude earthquakes, and rapid uplift and exhumation of mountain belts and high sedimentation rates in adjacent sedimentary basins. This volume contains 24 articles that integrate new geophysical and geologic data, including many field-based studies, to better link the sedimentary, structural, geochemical, and magmatic processes that are important for understanding the development of collisional continental margins."--Publisher's website.
