A Triassic Syndepositional Detachment System, Ischigualasto Provincial Park, Northwestern Argentina
A Triassic Syndepositional Detachment System, Ischigualasto Provincial Park, Northwestern Argentina

Author: Tony L. Albrecht

Publisher:

Published: 2005

Total Pages:

ISBN-13:

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The Ischigualasto basin of northwest Argentina contains ̃4 km of non-marine strata. In the southeast part of the basin, the Middle Triassic Los Rastros Formation contains a ̃1 km 2 area where rocks exhibit both extensional and contractional deformation features. To the east, both high angle and listric normal faults are the dominant structures. To the west, deformation consists of reverse and thrust faults, in addition to upright and overturned folds. Faults in both areas sole into a sub-horizontal detachment surface, below which rocks are undeformed. Deformed Los Rastros Formation strata are overlain by lightly-deformed/undeformed rocks of the Upper Triassic Ischigualasto Formation. The Agua de la Peña detachment system is interpreted to have formed as a result of gravity spreading/depositional loading of lacustrine delta platform and fluvial deposits above an overpressured shale décollement. Although 2-3 orders of magnitude smaller, the cross-sectional shape and interpreted driving mechanisms of the Agua de la Peña detachment are similar to paired extensional-contractional fault systems formed along continental margins. Based on reconstructed geometry and interpreted rheology, the contractional portion of the detachment can be modeled as a critical-tapered wedge, and provides a small-scale analogue for fold-thrust belts formed in passive-margin settings.

Structural Controls on Extensional-basin Development Triassic Ischigualasto Formation, NW Argentina
Structural Controls on Extensional-basin Development Triassic Ischigualasto Formation, NW Argentina

Author: Kristin M. Guthrie

Publisher:

Published: 2005

Total Pages:

ISBN-13:

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This thesis reports the results of a structural and stratigraphic field study of the Ischigualasto Formation in the Ischigualasto Basin, NW Argentina. Previous stratigraphic investigations have documented an along-strike increase in Ischigualasto Formation thickness of ̃275 m over a distance of 7 km. While this thickness change has been attributed to syndepositional faulting, the exact location and characteristics of controlling faults have never been documented. In order to determine the influence of fault-related accommodation development on thickness variations in the Ischigualasto Formation a detailed structural mapping project was conducted in the eastern part of the basin. Field mapping identified two groups of intrabasinal normal faults with near perpendicular strike azimuths. These fault orientations, and their calculated extension directions, are best explained by the development of basin-margin perpendicular release faults coupled with normal-sense reactivation of preexisting basement structures. Calculation of cumulative observed displacements along intrabasinal normal faults in the study area, however, revealed a negligible contribution to accommodation. The presence of interpreted release faults in the study area, however, suggests that observed changes in Ischigualasto Formation thickness were controlled by a northwest increase in basin-bounding fault displacement during the time of deposition.

Geodynamics of the Indian Plate
Geodynamics of the Indian Plate

Author: Neal Gupta

Publisher: Springer Nature

Published: 2020-02-28

Total Pages: 574

ISBN-13: 3030159892

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This book provides insights on new geological, tectonic, and climatic developments in India through a time progression from the Archean to the Anthropocene that are captured via authoritative entries from experts in earth sciences. This volume aims to bring graduate students and researchers up to date on the geodynamic evolution of the Indian Plate; concepts that have so far resulted in a rather uneven treatment of the subject at different institutions. The book is divided into 4 sections and includes perspectives such as the formation and evolution of the Indian crust in comparison to its neighbors such as Antarctica, Africa and Australia; the evolution of Precambrian cratons and sedimentary basins of India; and a summary account of early life reported in the Indian stratigraphic record. Readers will also discover the key recent research into the neotectonics, tectonic geomorphology, and paleoseismology of the Himalayan Front. Researchers and students in geology, earth sciences, sedimentology, paleobiology and geography will find this book appealing.

Alluvial Sedimentation
Alluvial Sedimentation

Author: M. Marzo

Publisher: John Wiley & Sons

Published: 2009-04-15

Total Pages: 600

ISBN-13: 1444304003

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Most of the thirty-four papers contained in this Special Publication arise from the Fourth International Conference on Fluvial Sedimentology held in Spain in 1989. Sections deal with various aspects of sediment transport and hydraulics in flume experiments and modern rivers, the analysis of alluvial facies, geomorphic and structural controls on alluvial sedimentation, alluvial stratigraphy and basin analysis, and finally the exploration and exploitation of ores. A professional reference to the most recent research in fluvial sedimentology. An international expert authorship.

Reservoir Characterization
Reservoir Characterization

Author: Larry Lake

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 680

ISBN-13: 0323143512

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Reservoir Characterization is a collection of papers presented at the Reservoir Characterization Technical Conference, held at the Westin Hotel-Galleria in Dallas on April 29-May 1, 1985. Conference held April 29-May 1, 1985, at the Westin Hotel—Galleria in Dallas. The conference was sponsored by the National Institute for Petroleum and Energy Research, Bartlesville, Oklahoma. Reservoir characterization is a process for quantitatively assigning reservoir properties, recognizing geologic information and uncertainties in spatial variability. This book contains 19 chapters, and begins with the geological characterization of sandstone reservoir, followed by the geological prediction of shale distribution within the Prudhoe Bay field. The subsequent chapters are devoted to determination of reservoir properties, such as porosity, mineral occurrence, and permeability variation estimation. The discussion then shifts to the utility of a Bayesian-type formalism to delineate qualitative ""soft"" information and expert interpretation of reservoir description data. This topic is followed by papers concerning reservoir simulation, parameter assignment, and method of calculation of wetting phase relative permeability. This text also deals with the role of discontinuous vertical flow barriers in reservoir engineering. The last chapters focus on the effect of reservoir heterogeneity on oil reservoir. Petroleum engineers, scientists, and researchers will find this book of great value.

Relative Role of Eustasy, Climate, and Tectonism in Continental Rocks
Relative Role of Eustasy, Climate, and Tectonism in Continental Rocks

Author: Keith William Shanley

Publisher:

Published: 1998

Total Pages: 248

ISBN-13:

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Papers in this title offer understanding of allocyclic controls on non-marine stratigraphy, allowing better predictions about the nature and geometry of strata within areas of basins where data are more limited. Thus one can better estimate the potential for oil, gas, coal, or mineral accumulations. Authors examine the relative importance of eustasy, climate, and sedimentation supply in determining the nature of lithologies and the packaging of continental strata.

Fluvial Depositional Systems
Fluvial Depositional Systems

Author: Andrew Miall

Publisher: Springer Science & Business Media

Published: 2013-08-23

Total Pages: 316

ISBN-13: 3319006665

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This book is intended to complement the author's 1996 book "The geology of fluvial deposits", not to replace it. The book summarizes methods of mapping and interpretation of fluvial depositional systems, with a detailed treatment of the tectonic, climatic and eustatic controls on fluvial depositional processes. It focuses on the preserved, ancient depositional record and emphasizes large-scale (basin-scale) depositional processes. Tectonic and climatic controls of fluvial sedimentation and the effects of base-level change on sequence architecture are discussed. Profusely illustrated and with an extensive reference to the recent literature, this book will be welcomed by the student and professional geologist alike.

Mass-transport Deposits in Deepwater Settings
Mass-transport Deposits in Deepwater Settings

Author: R. Craig Shipp

Publisher: SEPM Soc for Sed Geology

Published: 2011

Total Pages: 532

ISBN-13: 156576286X

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Historically, submarine-mass failures or mass-transport deposits have been a focus of increasingly intense investigation by academic institutions particularly during the last decade, though they received much less attention by geoscientists in the energy industry. With recent interest in expanding petroleum exploration and production into deeper water-depths globally and more widespread availability of high-quality data sets, mass-transport deposits are now recognized as a major component of most deep-water settings. This recognition has lead to the realization that many aspects of these deposits are still unknown or poorly understood. This volume contains twenty-three papers that address a number of topics critical to further understanding mass-transport deposits. These topics include general overviews of these deposits, depositional settings on the seafloor and in the near-subsurface interval, geohazard concerns, descriptive outcrops, integrated outcrop and seismic data/seismic forward modeling, petroleum reservoirs, and case studies on several associated topics. This volume will appeal to a broad cross section of geoscientists and geotechnical engineers, who are interested in this rapidly expanding field. The selection of papers in this volume reflects a growing trend towards a more diverse blend of disciplines and topics, covered in the study of mass-transport deposits.