Advances in the Sedimentary Geology of the Great Valley Group, Sacramento Valley, California

Advances in the Sedimentary Geology of the Great Valley Group, Sacramento Valley, California PDF Author: Stephan Alan Graham
Publisher: Pacific Section Society of Economic Paleontologists & Mineralogists
ISBN:
Category : Science
Languages : en
Pages : 76

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Advances in the Sedimentary Geology of the Great Valley Group, Sacramento Valley, California

Advances in the Sedimentary Geology of the Great Valley Group, Sacramento Valley, California PDF Author: Stephan Alan Graham
Publisher: Pacific Section Society of Economic Paleontologists & Mineralogists
ISBN:
Category : Science
Languages : en
Pages : 76

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Classic Cordilleran Concepts

Classic Cordilleran Concepts PDF Author: Eldridge M. Moores
Publisher: Geological Society of America
ISBN: 0813723388
Category : Science
Languages : en
Pages : 507

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Paleogeography and Sedimentary Development of Two Deep-marine Foreland Basins

Paleogeography and Sedimentary Development of Two Deep-marine Foreland Basins PDF Author: Anne Bernhardt
Publisher: Stanford University
ISBN:
Category :
Languages : en
Pages : 240

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Book Description
This dissertation comprises three chapters focusing on the evolution of marine sedimentary successions that formed as the fill of large submarine channel belts and their tributary systems. These channel belts serve as conduits for gravel- and sand-laden sediment gravity flows along the axes of narrow, elongate foreland basins. In the past, axial channel belts have not been widely recognized in submarine foreland basins (Mutti et al., 2003). However, recent studies have demonstrated the presence of axial channels, 3-8 km in width and > 100 km in length, in a number of marine foredeeps including the Cretaceous Magallanes Basin, southern Chile, and the Tertiary Molasse Basin, northern Austria (De Ruig and Hubbard, 2006; Hubbard et al., 2008, 2009). Additional studies have shown that similar channels are common in submarine trough-shaped basins in other convergent margin settings such as the Peru-Chile trench (Thornburg et al. 1990, Völker et al., 2006), the Hikurangi trough, offshore New Zealand (Lewis and Pantin, 2002), and the Nankai trough, offshore Japan (Fig. 1 in Moore et al., 2007), as well as in modern oceanic rift basins, such as the Maury channel in the Northeast Atlantic Rockall Basin (Cherkis et al., 1973) and the Northwest Atlantic Mid-Ocean Channel (NAMOC) in the Labrador Sea (Hesse et al., 1987, 1990; Hesse, 1989, Klaucke et al., 1998). These occurrences suggest that axial channels may be common sediment transport fairways in elongate deep-water basins in a variety of tectonic settings. This thesis investigates the sedimentary evolution, stratigraphic architecture, and paleogeography of such channel systems in two distinct, yet analogous and complementary research areas: the Magallanes foreland basin in southern Chile, and the Molasse foreland basin in northern Austria. The main objectives of this study are: a)to characterize the processes of submarine sediment transport and deposition in the study areas, b)to explain the associated filling patterns of ancient submarine axial channels and their tributaries, and c)to reconstruct the paleogeography of an ancient seafloor in order to better understand deep-marine sediment dispersal patterns in narrow elongate basins. The Magallanes Basin is a retro-arc foreland basin characterized by a deep-marine filling history from the Cenomanian/ Turonian (Fildani et al., 2003; Fosdick et al., in press) to the Campanian (Chapter 3). The numerous coarse-grained submarine channel and lobe complexes of the Turonian to Campanian Cerro Toro Formation represent a large north-south oriented channel belt that funneled sediment gravity flows along the axis of the foreland basin parallel to the active thrust front (Hubbard et al., 2008). This main axial trunk channel belt was probably fed by at least one, and possibly numerous, tributary channel systems coming off the Andean mountain front to the west. Similarly, sedimentation within the Upper Austrian Molasse Basin during the late Oligocene to early Miocene was largely controlled by an axial trunk channel that was fed by a deltaic system to the west and a tributary system lying along the Inntal fault zone to the southwest (De Ruig and Hubbard, 2006). Three studies were undertaken in order to illuminate the processes and architecture of the fill of submarine foreland basin axial channels: the interaction of submarine debris flows and turbidity currents within the axial channel in the Molasse Basin (Chapter 1), the stratigraphic and architectural evolution of coarse-grained deep-water deposits in a tributary system setting in the Magallanes Basin (Chapter 2), and the paleogeography of the Magallanes Basin axial channel belt and its tributary system and the associated basin-filling pattern over time (Chapter 3). Multiple techniques were combined to achieve these goals, including field mapping, sedimentological analysis of outcrops and rock cores, interpretation of wireline logs and 3D seismic-reflection data, U/Pb dating of zircons, strontium isotope stratigraphy, and a novel approach to lithofacies proportion modeling (Stright et al., 2009).

Unlocking the Stratigraphical Record

Unlocking the Stratigraphical Record PDF Author: Peter Doyle
Publisher: John Wiley & Sons
ISBN: 0471974633
Category : Science
Languages : en
Pages : 549

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Book Description
Stratigraphy is the key to understanding the geological evolution of the earth. It provides the framework for our interpretation of the sequences of events which have shaped the earth throughout its 4600 million years of existence. It provides the timescale with which we can determine the relative order of these events, and it provides the means whereby we can calibrate this using absolute ages in years. Stratigraphy is therefore the most fundamental subject in the science of geology, and all geologists are practising stratigraphers. Traditionally, however, stratigraphy has been considered as a Victorian science, a ponderous process of the naming and cataloguing of innumerable geological units most of which are of limited interest outside of a given geographical region. This view has been challenged in recent years through the development of new techniques such as sequence stratigraphy, cyclostratigraphy and chemostratigraphy which have greatly enhanced our capability to interpret earth history. In this book many of the leading practitioners of modern stratigraphy have been gathered together to provide up-to-date and authoritative reviews of most of the important advances in the subject. As such it is the only volume to provide a comprehensive treatment of modern stratigraphy at an advanced undergraduate level.

Sedimentary Environments

Sedimentary Environments PDF Author: Harold G. Reading
Publisher: John Wiley & Sons
ISBN: 1118687639
Category : Science
Languages : en
Pages : 1417

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Book Description
Sedimentary Environments is one of the most distinguished and influential textbooks in the earth sciences published in the last 20 years. The first and second editions both won universal praise and became classic works in sedimentology. Since the publication of the last edition, the study of sedimentary environments and facies has made great strides, with major advances in facies modelling, sequence stratigraphy and basin modelling. The 3rd edition of this classic text will likely set the benchmark even higher, and needless to say, will continue being the textbook of choice for sedimentology students. The latest edition of a classic text. Incorporates all the latest advances in dynamic stratigraphy. Will remain the textbook of choice for upper level undergraduate and graduate students in sedimentology.

Pacific Gas & Electric Company, San Joaquin Valley Operations and Maintenance Program Habitat Conservation Plan

Pacific Gas & Electric Company, San Joaquin Valley Operations and Maintenance Program Habitat Conservation Plan PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 720

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Mélanges

Mélanges PDF Author: John Wakabayashi
Publisher: Geological Society of America
ISBN: 0813724805
Category : Science
Languages : en
Pages : 292

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Guidebook

Guidebook PDF Author: American Association of Petroleum Geologists. Pacific Section
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 502

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Fossil Behavior Compendium

Fossil Behavior Compendium PDF Author: Arthur J. Boucot
Publisher: CRC Press
ISBN: 143985923X
Category : Nature
Languages : en
Pages : 941

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Book Description
In this complete and thorough update of Arthur Boucot's seminal work, Evolutionary Paleobiology of Behavior and Coevolution, Boucot is joined by George Poinar, who provides additional expertise and knowledge on protozoans and bacteria as applied to disease. Together, they make the Fossil Behavior Compendium wider in scope, covering all relevant ani

External Controls on Deep-water Depositional Systems

External Controls on Deep-water Depositional Systems PDF Author: SEPM (Society for Sedimentary Geology)
Publisher: SEPM Soc for Sed Geology
ISBN: 1565761367
Category : Science
Languages : en
Pages : 438

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Book Description
Accompanying CD-ROM contains digital version of this publication.