Origin of San Miguel Lignite Deposit and Associated Lithofacies, Jackson Group, South Texas

J. W. Snedden , D. G. Kersey

AAPG Bulletin

... determined from the analysis of 3 continuous cores and 600 borehole logs. Five units can be recognized by their characteristic composition, texture...

Sedimentology of an Erg to an Erg-Margin Depositional System, the Rush Springs Sandstone of Western Oklahoma, U.S.A.: Implications for Paleowinds Across Northwestern Pangea During the Guadalupian (Middle Permian)

Zachary A. Poland, Alexander R. Simms

Journal of Sedimentary Research (SEPM)

... (Table 1, Fig. 3). Table 1. Facies of the Rush Springs Sandstone showing the sedimentary structures, texture, and the interpreted depositional...

The Triassic Sag River Sandstone, North Slope Alaska: An Example of Shelf Sandstone Deposition Under the Influence of Upwelling

Michael D. Wilson

CSPG Special Publications

...The Triassic Sag River Sandstone, North Slope Alaska: An Example of Shelf Sandstone Deposition Under the Influence of Upwelling Michael D. Wilson...

Subsurface Geology of the Kellyville District Creek County Oklahoma

Bruce Furlow

Oklahoma City Geological Society

... little variation over the area, and averages 30 feet. The Hogshooter is a tan to chalky white limestone, of medium texture. It may contain calcite...

Stratigraphic Sections of the Madison Limestone and Amsden Formation, West Flank of the Bighorn Basin, Wyoming

William J. Sando

Wyoming Geological Association

... Limestone; Mmb, Bull Ridge Member of Madison Limestone.          Thickness (Feet) Tensleep Sandstone     105. Quartzite; like unit 103. 20.0...

Early Paleozoic Strata in Southeastern Arizona

R. C. Epis , C. M. Gilbert

AAPG Bulletin

... dolomite and dolomitic quartz sandstone which, in turn, overlie Abrigo limestone in the northern Swisshelm Mountains and at Black Gap (Bisbee...

Tertiary Stratigraphy of the Goose Creek District, Cassia County, Idaho, and Adjacent Parts of Utah and Nevada1

W. J. Mapel, W. J. Hail Jr.

Utah Geological Association

.... P., 1909, Igneous rocks, composition, texture and classification, description and occurrences, v. 1, New York, John Wiley and Sons. Kirkham, V. R. D...

Provenance and Diagenesis of the Cherokee Sandstones, Deep Anadarko Basin, Western Oklahoma

Stephen Douglas Levine

Oklahoma City Geological Society

.... Other cement types included pyrites and titanium oxides, which made up 1% of the total composition. Skinner Sandstone Texture The mean grain size...

Carbonate Facies of the Montoya Group — Description of a Shoaling-Upward Ramp: Part I

E.A. Measures

West Texas Geological Society

.... The lithofacies are named after the dominant lithology or lithologies: 1) quartz sandstone, 2) bioclastic grainstone, 3) fossiliferous wacke-mudstone...

Depositional Environments of the Norphlet Formation (Jurassic) for Southwestern Alambama

Fred Pepper

GCAGS Transactions

... or is absent over the stable Wiggins Arch. The Norphlet consists of an upper well sorted sandstone underlain by a red bed sequence. These sediments grade...

Heavy Mineral Zones in the Modelo Formation of the Santa Monica Mountains, California

William M. Cogen

Journal of Sedimentary Research (SEPM)

.... These lithologic units may be traced on the surface for several miles. Except for the basal greywacke, the texture of the sandstone units in the Modelo...

Silicified Stromotolites, Paleokarst and Diagenetic Overprinting Along Sequence Boundary Beds, Madison/Darwin Contact, Bighorn Basin Wyoming — A Tool for Low-Stand Carbonate Deposystem Investigation?

C. Enzl, J. Trappe, C. F. Vondra

Wyoming Geological Association

... weathering during this depositional interval. The infilling of the Darwin Sandstone occurs subsequent to silicification. Choquette, P.W. & Steinen, R.P....

Geochemical Characteristics of Oil and Reservoir Depositional Environment Analysis of Talang Akar Formation (TAF) in the AMPŽ Field, Jabung Block, Jambi Sub-Basin, South Sumatra Basin

Amalia Prayoga, Safira Rizkia Muthasyabiha, Sugeng Sapto Surjono, Agus Heru Purwanto, Lia Reulina Ketaren

Indonesian Petroleum Association

... structure and composition of rocks. The secondary data to determine texture and visible porosity are petrographic data, and also RCAL data...

Texture of Oil Sands with Relations to the Production of Oil

A. F. Melcher

AAPG Bulletin

...Texture of Oil Sands with Relations to the Production of Oil A. F. Melcher 1924 716 774 8 6. (November-December) SCOPE OF THE INVESTIGATION...

Chapter 3 - Grains: Rock Fragments (Lithic Fragments)

Dana S. Ulmer-Scholle, Peter A. Scholle, Juergen Schieber, Robert J. Raine

AAPG Special Volumes

... are less varied in composition and texture than those in the previous examples. This sediment is derived from a weathered and reworked caliche...

Stratigraphy of Everton Formation (Early Medial Ordovician), Northern Arkansas

Raymond W. Suhm

AAPG Bulletin

... is an intertonguing complex of sandstone, limestone, and dolomite exposed in northern Arkansas; it has produced gas shows in the subsurface. The Everton...

Primary Stratigraphic Traps in Sandstones: Geologic Exploration Methods

David B. MacKenzie

AAPG Special Volumes

..., in contrast to carbonate rocks, the kind of information available from cuttings--color, grain composition, and texture--has been of limited value when used...

Zones of Pierre Formation of Colorado

Mary O. Griffitts

AAPG Bulletin

... origin of this sandstone tongue. Because of the great thickness and general homogeneity of the Upper Cretaceous Pierre shale of Colorado, it has...

Organic-Matter Pores: New Findings from Lower-Thermal-Maturity Mudrocks

Robert M. Reed

GCAGS Journal

... environment were sampled from the Paleogene Wilcox Group of East Texas. The mudrocks have an Ro of <0.5%, a siliceous–argillaceous composition, and >11% total...

Facies-independent reservoir characterization of the micropore-dominated Word field (Edwards Formation), Lavaca County, Texas

S. Van Simaeys, B. Rendall, F. J. Lucia, C. Kerans, and S. Fullmer

AAPG Bulletin

... siliciclastic (sandstone) and carbonate reservoirs. The ability for carbonate sediments to form intraparticle pores (pores within grains) and large isolated pores...

Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina

Marianela Dìaz, Sergio A. Marenssi, Carlos O. Limarino

Journal of Sedimentary Research (SEPM)

... diagenetic history is poorly understood. Based on the composition of authigenic minerals and their temporal relationships in seventy-eight sandstone samples...

Upper Ordovician Montoya Sequence Stratigraphy and Chert Porosity in Southeastern Delaware Basin

David M. Thomas, III, Huaibo Liu

West Texas Geological Society

... lithologies: 1) sandstone and sandy skeletal packstone, 2) fine to very coarse-grained skeletal packstone, and 3) fine to very coarse-grained skeletal...

Upper Ordovician Montoya Sequence Stratigraphy and Chert Porosity in Southeastern Delaware Basin, by David M. Thomas, III And Huaibo Liu, #30023 (2004).

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Cambrian History, Llano Region

W. C. Bell, Virgil E. Barnes

Houston Geological Society

... fossils useful for dating belong to latest Middle Cambriam (Bolaspidella) time (fig. 6). These fossils occur above sandstone which is barren except...

Effects of Depositional and Authigenic Clays on Porosity Development, Atoka Formation, White Oak Field, Arkoma Basin

C. Dianne Phillips, Doy L. Zachry

Tulsa Geological Society

... ft of the Sells sandsone core were analyzed petrographically to determine composition, texture, and porosity. Lithologic and diagenetic features were...