Geologic settings of lignite in the Wilcox Group of east-central Texas and the Jackson Group of South Texas

Ayers, Walter B.

doi:10.1029/ft173p0005

Cited by 3 publications

(3 citation statements)

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“…Clastic wedges of passive or Atlantic-type continental margins typically contain major coal deposits in facies of fluvial, deltaic, and shore-zone systems (Kaiser et al 1978Ayers and Lewis 1985;Ayers and Kaiser 1987). The Tertiary of the Gulf Coast, with its voluminous subsurface data base, has permitted detailed delineation of coals associated with tributary and trunk mixed-load fluvial systems and delta plain environments in units such as the Wilcox (Fig.…”

Section: Passive-margin Basinsmentioning

confidence: 99%

Terrigenous Clastic Depositional Systems

Galloway¹,

Hobday²

1996

254

103

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Library of Congress Cataloging-in-Publication Data. Galloway. William E. Terrigenous clastic depositional systems: applications to fossil fuel and groundwater resources/William E. Galloway, David K. Hobday. -2nd completely rev .. updated, and enl. ed. p. cm. Includes bibliographical references (p. 445-484) and index. ISBN 0-387-60232-1 (hardcover).-ISBN 3-540-60232-1 (hardcover) 1. Sedimentation and deposition. 1. Hobday, David K. II. Title. QE571. G27 1996 553.2 -dc20 95-47132 This work isThe use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Cover design: Springer-Verlag. E. Kirchner Typesetting: Best-set Typesetter Ltd., Hong Kong SPIN: 10509771 32/3136/SPS -5 4 3 2 1 0 -Printed on acid-free paper Preface to the Second EditionNonrenewable energy resources, comprising fossil fuels and uranium, are not randomly distributed within the Earth's crust. They formed in response to a complex array of geologic controls, notably the genesis of the sedimentary rocks that host most commercial energy resources. It is this genetic relationship between economic resources and environment that forms the basis for this book. Our grouping of petroleum, coal, uranium, and ground water may appear to be incongruous or artificial. But our basic premise is that these ostensibly disparate resources share common genetic attributes and that the sedimentological principles governing their natural distributions and influencing their recovery are fundamentally similar. Our combined careers have focused on these four resources, and our experiences in projects worldwide reveal that certain recurring geologic factors are important in controlling the distribution of commercial accumulations and subsurface fluid flow. These critical factors include the shape and stability of the receiving basin, the major depositional elements and their internal detail, and the modifications during burial that are brought about in these sediments by pressure, circulating fluids, heating, and chemical reaction.Since the first edition of this book in 1983, there has been a quantum leap in the volume of literature devoted to genetic stratigraphy and refinement of sedimentological principles and a commensurate increase in the application of these concepts to resource exploration and development. Two wholly new chapters, 11 and 16, have been added to accommodate these advances, two chapters (7 and 8) have been completely rewritten, and Chapters 3, 6, 9, 10, and 13 have been substantially revised.We review the spectrum of terrigenous (land-derived or siliciclastic as opposed to in-place or biochemical) clastic depositional systems and their component genetic facies, with emphasis on subsurface as well as field recognition. These range from the most proximal, subaerial, and generally coarse-grained alluvial-fan systems through fluvial, deltaic, shore-zone, ...

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Section: Passive-margin Basinsmentioning

confidence: 99%

Terrigenous Clastic Depositional Systems

Galloway¹,

Hobday²

1996

254

103

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“…The Simsboro formation acts as the main aquifer unit and is composed of over 80% permeable sand with 20% clay. The sands are composed of quartz and feldspar with minor kaolinite and illite, with the clay composed of predominantly montmorillonite (Ayers & Lewis, 1985; Kohls, 1963; Thorkildsen & Price, 1991). The much less permeable Calvert Bluff and Hooper formations are predominantly mudstones with clay composed of montmorillonite with some kaolinite, illite, and carbonaceous clays (Kohls, 1963).…”

Section: Study Areamentioning

confidence: 99%

Fluvial and Marine Depositional Environments Determined From Groundwater Chemistry and Calculated Clay‐Cation Compositions

Jones

Capuano

2023

Geochem Geophys Geosyst

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Differentiation of a fluvial from a marine depositional environment is essential to understanding the potential hydrocarbon reservoir and source rock characteristics of a sedimentary unit (e.g., Chen et al., 2015;Posamentier & Walker, 2006). Fluvial reservoirs in particular, with their typical meander-belt characteristics, are much less continuous, less laterally extensive, and more compartmentalized than marine reservoirs with their typical sheetlike characteristics (e.g.,

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“…K3), with some coals containing woody material suggesting formation higher in the deltaic plain (Atlee and others, 1968;Kaiser, 1974). Most of the lignite of the Calvert Bluff Formation can be found at the contact with the Simsboro sands and within 200 feet of the overlying Carrizo Formation (middle Eocene Claiborne Group), but secondary occurrences are scattered irregularly throughout (Johnston and Jobling, 1979;Ayers and Kaiser, 1987).…”

Section: East-central Texas Coal Depositsmentioning

confidence: 99%