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The AAPG/Datapages Combined Publications Database

Showing 1,739 Results. Searched 200,626 documents.

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Recognition of Ancient Eolian Longitudinal Dunes: A Case Study in Upper Bhander Sandstone, Son Valley, India

Pradip K. Bose, Snehasis Chakrabarty, Subir Sarkar

Journal of Sedimentary Research (SEPM)

... symmetric profiles, and a gently to moderately dipping plinth upon which the slipface is perched (McKee 1979; Kocurek 1991, 1996). "Linear" refers merely...

1999

Powder X-Ray Diffraction Analysis of Homogeneous and Heterogeneous Sedimentary Dolostones

Brian Jones, Robert W. Luth, Alexander J. MacNEIL

Journal of Sedimentary Research (SEPM)

... %Ca dolomite population (Fig. 7). These larger errors are probably a result of using a symmetric peak shape without explicit consideration of the K2...

2001

Paleobathymetry of Cretaceous Greenhorn Sea in Eastern Colorado

Don L. Eicher

AAPG Bulletin

... at the top represent deposition in extremely shallow water. The strata between those units record a nearly symmetric cycle of marine transgression...

1969

Structural Geometry of Meade Thrust Plate in Northern Blackfoot Mountains, Southeastern Idaho

Richard W. Allmendinger

AAPG Bulletin

... and symmetric with a more nearly concentric geometry. The reasons for these differences are twofold. First and probably most important, the footwall folds formed...

1981

Basin-Edge Diapirism and Updip Salt Flow in Zechstein of Southern North Sea

Malcolm K. Jenyon

AAPG Bulletin

... of Figure 4 example, and shows how basic form of primary features remains unchanged across large distances. Note gentle, symmetric distortion of competent...

1985

Geostatistical Models of Secondary Oil Migration Within Heterogeneous Carrier Beds: A Theoretical Example

Lee Rhea , Mark Person , Ghislain de Marsily , Emmanuel Ledoux , Alain Galli

AAPG Bulletin

... secondary oil migration directions are highly irregular (Figure 1D) despite the rather symmetric geometry of the carrier bed (Figure 1A). Oil migration...

1994

Mechanics of low-relief detachment folding in the Bajiaochang field, Sichuan Basin, China

Andreas Plesch, John H. Shaw, David Kronman

AAPG Bulletin

... separation. At Jurassic levels, the fold assumes a more symmetric shape with limb dips of about 4.Figure 2. Seismic depth section without...

2007

Analog modeling of divergent and convergent transfer zones in listric normal fault systems

Shamik Bose, Shankar Mitra

AAPG Bulletin

... zones with the faults approaching each other, offset by 90, and overlapping each other. During extension, the structures initiate as symmetric grabens...

2010

Structural analysis of a salt-cored transfer zone in the South Timbalier Block 54, offshore Gulf of Mexico: Implications for restoration of salt-related extensional structures

Shamik Bose, Shankar Mitra

AAPG Bulletin

... in the central part of the transfer zone, forming a symmetric salt diapir. Secondary antithetic and synthetic faults adjacent to the two main faults...

2014

What to expect when you are prospecting: How new information changes our estimate of the chance of success of a prospect

Frank J. Peel and John R. V. Brooks

AAPG Bulletin

... results in a symmetric or asymmetric posterior value Pg, as shown in Figure 6. The diagnostic strength measures the difference in revised probability...

2015

M. King Hubbert and the rise and fall of peak oil theory

David Deming

AAPG Bulletin

... of anthracite coal in Pennsylvania has closely followed a symmetric Hubbert curve, but the resource is not exhausted. Production declined because of a decrease...

2023

Integrated Exploration of the Owambo Basin, Onshore Namibia: Hydrocarbon Exploration and Implications for a Modern Frontier Basin; #10609 (2014)

Thomas E. Hoak, Alan L. Klawitter, Charles F. Dommer, Pasquale V. Scaturro

Search and Discovery.com

... in the southern basin center. This line shows the complex interplay between symmetric upright folding and interpreted wrench zones in the basement. From...

2014

Reinterpreting the Paleosalinity and Water Depth of Peripheral Foreland Basin Flysch; #30508 (2017)

Roger Higgs

Search and Discovery.com

..., Jackfork, Marnoso, Ross, Skoorsteenberg, Toro) have recurrent event beds with evidence for waves (e.g. HCS; near-symmetric ripples). The following...

2017

A Geophysical Survey of the Woodlark-Solomons Region

Brian Taylor

Circum Pacific Council Publications

... t h e paleo-Papuan P e n i n s u l a t o form the Woodlark and Pocklington r i s e s . Magnetic l i n e a t i o n s i d e n t i f y a symmetric s p r...

1987

Eolian-aquatic deposits and faunas of the middle Cambrian Potsdam Group

James W. Hagadorn, Joseph H. Collette, Edward S. Belt

PALAIOS

... symmetric ripples occur. Low-relief, rounded symmetric ripples with tuning-fork junctions (two sets of which are visible in Fig. 7) mantle the deepest...

2011

Discerning coastal-process signatures and architectural styles in tidal barforms from the deltaic western Paleozoic Gondwana shoreline: new insights about the Balcarce Formation, Argentina

Mariana S. Olivo, Manuel F. Isla, Damián Moyano-Paz, Luciano López, Lorena B. Percudani, Jerónimo J. Zuazo, Lucía E. Gómez-Peral, Daniel G. Poiré

Journal of Sedimentary Research (SEPM)

... be either symmetric or asymmetric with obliquely and counterclockwise-oriented crests relative to the strongest tidal flow direction (Snedden and Darlymple...

2024

Detachment Folds versus Fault-propagation Folds, and Their Truncation by Thrust Faults

Wesley K. Wallace, Thomas X. Homza

AAPG Special Volumes

... and Hanks, 1990). Symmetric detachment folds that are not cut by thrust faults dominate within a part of the stratigraphic section that is exposed throughout...

2004

Cyclic Ramp-to-Basin Carbonate Deposits, Lower Mississippian, Wyoming and Montana: A Combined Field and Computer Modeling Study

Maya Elrick, J. Fred Read

Journal of Sedimentary Research (SEPM)

.... Cycle types across the ramp-to-basin transition. A) Deep subtidal cycles (section LO); note symmetric cycle near base. B) Stacked shallow subtidal...

1991

Deposits from Wave-Influenced Turbidity Currents: Pennsylvanian Minturn Formation, Colorado, U.S.A.

M. P. Lamb, P. M. Myrow, C. Lukens, K. Houck, J. Strauss

Journal of Sedimentary Research (SEPM)

... al. 2002). The data are meager (n = 5), but all measurements range from SE to WSW (an additional reading on symmetric ball-and-pillows indicate...

2008

Ichnology and Sedimentology of a Mud-Dominated Deltaic Coast: Upper Cretaceous Alderson Member (Lea Park Fm), Western Canada

Jussi Hovikoski, Ryan Lemiski, Murray Gingras, George Pemberton, James A. MacEachern

Journal of Sedimentary Research (SEPM)

... interbeds or mud-draped symmetric ripples are also present. Double mud drapes are observed locally. Unlike F3B, the tops of the sand units are normally...

2008

Control of Basin Water Depth On Channel Morphology and Autogenic Timescales in Deltaic Systems

Brandee Carlson, Anastasia Piliouras, Tetsuji Muto, Wonsuck Kim

Journal of Sedimentary Research (SEPM)

... of aggradation. In contrast, JKF-1 (shallow water) had more laterally mobile channels and developed a smoother shoreline that was more radially symmetric...

2018

Preservation of Neuropteris ovata in roof shale and in fluvial crevasse-splay facies (Late Pennsylvanian, Sydney Coalfield, Canada). Part I: An infrared-based chemometric model

José A. D'Angelo, Erwin L. Zodrow

PALAIOS

..., assigned to aliphatic C-H stretching vibrations, in the region 3000–2800 cmÀ1 (Fig. 8C, 8D) correspond to the anti-symmetric methylene (CH2) stretch...

2020

Petroleum Geology of Covenant Oil Field, Central Utah Thrust Belt

Thomas C. Chidsey Jr., Jacob S. DeHamer, Emily E. Hartwick, Keith R. Johnson, Daniel D. Schelling, Douglas A. Sprinkel, Douglas K. Strickland, John P. Vrona, David A. Wavrek

Utah Geological Association

... at 100 million barrels (15.9 million m3), with an estimated recovery factor of 40% to 50%. The Covenant trap is an elongate, symmetric, northeast...

2007

The Middle Proterozoic Purcell Supergroup in the Southwestern Rocky and Southeastern Purcell Mountains, British Columbia and the Initiation of the Cordilleran Miogeocline, Southern Canada and Adjacent United States

Margaret E. McMechan

CSPG Bulletin

..., and commonly grades into the overlying argillite lamina (Plate 1d). Scour-and-fill and pull-apart structures, mudcracks, symmetric and asymmetric...

1981

Field Conference: Cycle and Sequence Stratigraphy of Middle to Upper Cambrian Carbonates, Bonanza King Formation, Southern Great Basin; Lateral Continuity of Middle Cambrian Peritidal Cycles, Southern Nevada: Implications for Their Origin

David A. Osleger, Isabel P. Montañez, Javier Martin-Chivelet, Christoph Lehmann, Jeff Jaech, Eric Stokstad, Milt Kwong

Pacific Section SEPM

.... Broad dark bands typically are composed of either: a) subtidal cycles (1 to ~7 m thick) exhibiting symmetric arrangements of component lithofacies...

1996

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