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The AAPG/Datapages Combined Publications Database

Showing 263 Results. Searched 200,293 documents.

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Siderite Concretions In The Copan Crinoid Lagerstätte (Upper Pennsylvanian, Oklahoma): Implications For Interpreting Taphonomic And Depositional Processes In Mudstone Succession

James R. Thomka, Ronald D. Lewis

PALAIOS

... are often related to depositional processes operating at a much larger scale. For example, in the Upper Ordovician Kope Formation of the Cincinnati Arch...

2013

The Drowning of Ooid Shoals: Mississippian Greenbrier Limestone Near the West Virginia Dome: Chapter 10

Cindy Carney

AAPG Special Volumes

.... [Grey Scale] (A) Photomicrograph of ooid grainstone of the Denmar Formation. Scale bar is 0.5 mm. (B) Photomicrograph of uncoated skeletal grains...

1993

Significant Volcanic Contribution to Some Quartz-Rich Sandstones, East Java, Indonesia

Helen R. Smyth, Robert Hall, Gary J. Nichols

Journal of Sedimentary Research (SEPM)

... quartz-rich sandstones. A) Photomicrograph of metamorphic grains from iv (Cakaran Member of the Wungkal–Gamping Formation) (scale: 1 mm). B...

2008

Preservation of Autogenic Processes and Allogenic Forcings in Set-Scale Aeolian Architecture II: The Scour-and-Fill Dominated Jurassic Page Sandstone, Arizona, U.S.A.

Benjamin T. Cardenas, Gary Kocurek, David Mohrig, Travis Swanson, Cory M. Hughes,, Sarah C. Brothers

Journal of Sedimentary Research (SEPM)

... the formation-scale cross section. Overall, the cross section shows the thinning of the Carmel–Page stratigraphic unit from the basin onto the flanks...

2019

Facies and Reservoir-quality Variations in the Late Visean to Bashkirian Outer Platform, Rim, and Flank of the Tengiz Buildup, Precaspian Basin, Kazakhstan

J. F. Collins, J. A. M. Kenter, P. M. Harris, G. Kuanysheva, D. J. Fischer K. L. Steffen

AAPG Special Volumes

... in the reservoir prior to bitumen formation. Scale bars = 1 mm.Fractures and Later Dissolution (Corrosion)Larger fractures observed in core can be separated...

2006

The Tiwi Geothermal Reservoir: Geologic Characteristics and Response to Production

J.R. Hoagland, J.M. Bodell

Circum Pacific Council Publications

... in the formation and in the wellbores. The other major scale deposit, amorphous silica, typically forms in very high enthalpy discharge environments. Silica...

1996

Gas Bubble and Expansion Crack Origin of "Molar-Tooth" Calcite Structures in the Middle Proterozoic Belt Supergroup, Western Montana

George Furniss, John F. Rittel, Don Winston

Journal of Sedimentary Research (SEPM)

... at locality 3 in Figure 1. Scale bar is 1 cm long. B) Vertical and horizontal "molar-tooth" ribbon and blob voids from Chamberlain Formation, locality 4...

1998

Thrust Faulting, Exhumation and Formation-Scale Fluvial Architecture within the Hinterland of the Central Andean Fold-Thrust Belt

Search and Discovery.com

...Thrust Faulting, Exhumation and Formation-Scale Fluvial Architecture within the Hinterland of the Central Andean Fold-Thrust Belt Thrust Faulting...

2013

Chapter 8 - Mudrocks: Siltstones, Mudstones, Claystones & Shales

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

AAPG Special Volumes

... of these samples in the context of formation-scale examination of these rocks. We also added a few images from SEM observations on polished thin sections...

2014

Regional-Scale Porosity and Permeability Variations, Peace River Arch Area, Alberta, Canada (1)

STEFAN BACHU and J. R. UNDERSCHULTZ

AAPG Bulletin

... a wealth of information on the geology and properties of the rocks and formation fluids. Although all this information is public, few large-scale studies...

1992

Dinosaurian Stratigraphy and Modes of Occurrence in the Alabama-Georgia Gulf Coastal Plain

David T. King, Jr.

GCAGS Transactions

... boundaries (upper part of the Ripley Formation). Scale on left side of white card is in centimeters. FIGURE 5. [Grey Scale] Bedding-plane view...

1995

Post-Frac-Hit Mitigation and Well Remediation of Woodford Horizontal Wells With Solvent/Surfactant Chemistry Blend

Cory Swanson, W A. Hill, Gary Nilson, Christian Griman, Randal Hill, Phil Sullivan, Carl Aften, Jose C. Jimenez, Gianna Pietrangeli, Daniel C. Shedd, John Pursley

Unconventional Resources Technology Conference (URTEC)

..., reduce scale and organic deposition and control fines migration and clay swelling. The blend also included carefully selected components...

2018

Episodic Development of Helderbergian Paleogeography, New York State, Appalachian Basin

P. W. Goodwin, E. J. Anderson

Dallas Geological Society

... gradually in response to continual migration of formation-scale paleoenvironments. Rather, paleogeography developed episodically in response to small scale...

1988

Episodic Development of Helderbergian Paleogeography, New York State, Appalachian Basin

P. W. Goodwin, E. J. Anderson

CSPG Special Publications

... gradually in response to continual migration of formation-scale paleoenvironments. Rather, paleogeography developed episodically in response to small scale...

1988

Relation of Hydrocarbon Reservoir Potential to Lake-Basin Type: An Integrated Approach to Unraveling Complex Genetic Relations Among Fluvial, Lake-Plain, Lake Margin, and Lake Center Strata

Kevin Bohacs

AAPG Special Volumes

...-supersequence scale (group or formation scale, as seen on reflection seismic data), just as lake-basin type evolves along a predictable pathway through...

2012

The Stable-Isotope Composition of Early Ground-Water Cements from Sandstone in Paleoecological Reconstruction

Jay Quade, Lois J. Roe

Journal of Sedimentary Research (SEPM)

... required to form the largest of the sandstone nodules. Davies (1967) estimated times of formation on the scale of hundreds of years for Devonian...

1999

Unveiling Hidden Bias: The Effects of OBM Cleaning on TOC and Thermal Maturity

Gavin Russell, Emmaneul Zubia, Mohammad Wahid Rahman

Unconventional Resources Technology Conference (URTEC)

... formation-scale diversity. This raises a key issue: data reproducibility does not guarantee geological representativeness. The cleaning protocol shapes...

2025

Abstract: Morphology, Maturity and Quantity of Petrogenic Organic Matter in Ancient Shale

S. Nabhan, D. E. Canfield

The Society for Organic Petrology (TSOP)

... of the petrogenic OM content on formation scale while the content of OM from biologic primary production can fluctuate by one order of magnitude within each...

2024

Quantifying river avulsion activity from satellite remote sensing: Implications for how avulsions contribute to floodplain stratigraphy in foreland basins

Jeffery M. Valenza, Douglas A. Edmonds, Gary S. Weissmann

Journal of Sedimentary Research (SEPM)

... stratigraphic variability than that predicted by the traditional end-member model. We suggest that a time-averaged, formation-scale consideration...

2022

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