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The AAPG/Datapages Combined Publications Database
Showing 1,739 Results. Searched 200,626 documents.
Ground-Penetrating-Radar Characterization and Porosity Evolution of An Upper Pleistocene Oolite-Capped Depositional Cycle, Red Bays, Northwest Andros Island, Great Bahama Bank
Colby S. Hazard,, Scott M. Ritter, John H. McBride, David G. Tingey, R. William Keach, II
Journal of Sedimentary Research (SEPM)
... by surface S6 (Fig. 6A, B). In cross-section, this surface is mostly U-shaped and symmetric, with a more complex character to the north where...
2017
Structural Geology of the Franciscan Complex of the Crescent City Area, Northern California
K. R. Aalto
Pacific Section SEPM
... and swell occurs in all directions parallel to bedding. Such observations suggest that extension was largely a x i a l l y symmetric in the plane...
1986
Methods For Restoring and Describing Ancient Clinoform Surfaces
Tore Grane Klausen, William Helland-Hansen
Journal of Sedimentary Research (SEPM)
..., E.S., and Vanneste, K., 1996, Late Cenozoic evolution of the western Barents Sea–Svalbard continental margin: Global and Planetary Change, v. 12, p. 53...
2018
Application of the Asymmetric Delta Model to Along-Strike Facies Variations in a Mixed Wave- and River-Influenced Delta Lobe, Upper Cretaceous Basal Belly River Formation, Central Alberta
Cindy D. Hansen, James A. Maceachern
Special Publications of SEPM
... APPLIED TO CRETACEOUS BELLY RIVER FORMATION wave-influenced deltas resemble, in plan view, the classical symmetric wave-dominated delta with beach ridges...
2009
Displacive Widening of Calcite Veins in Shale: Insights Into the Force of Crystallization
Qingfeng Meng, John Hooker, Joe Cartwright
Journal of Sedimentary Research (SEPM)
... exhibit varied geometries. Single isolated veins commonly contain tapering tips with narrow tip angles. These veins exhibit a spindle-like, symmetric...
2018
Seismotectonics of Northwest Montana, USA
D.R. Lageson, M.C. Stickney
Montana Geological Society
... involving antithetic normal faults to produce a more symmetric graben (Flathead Valley). Ye = Middle Proterozoic Empire Formation; Yh...
2000
Facies Architecture of the Doe Creek Member of the Kaskapau Formation, NW Alberta: Utilizing Ichnology to Enhance Deltaic Depositional Models
Scott A. Reid, S. George Pemberton
Special Publications of SEPM
... graded, symmetric and asymmetric ripple cross-laminated beds that make up approximately five percent of the facies by volume. These normally graded beds...
2009
Exceptional preservation of soft tissues by microbial entombment: insights into the taphonomy of the Crato Konservat-Lagerstatte
Filipe G. Varejão, Lucas V. Warren, Marcello G. Simões, Franz T. Fürsich, Suzana A. Matos, Mario L. Assine
PALAIOS
..., Lucas V. Warren, Marcello G. Simões, Franz T. Fürsich, Suzana A. Matos, Mario L. Assine PALAIOS, 2019, v. 34, 331–348 Research Article DOI: http...
2019
Clastic Pipes and Soft-Sediment Deformation of the Jurassic Carmel Formation, Southern Utah, U.S.A.: Implications For Pipe Formation Mechanisms and Host-Rock Controls
David Fairchild Wheatley,, Marjorie Ann Chan
Journal of Sedimentary Research (SEPM)
... can have offsets up to several meters relative to the host rock. Although some pipes only have the two symmetric bounding faults in cross section...
2018
Petrophysical Interpretation and Reservoir Characterisation on Proterozoic Shales in National Drilling Initiative Carrara I, Northern Territory
Liuqi Wang, Adam H. E. Bailey, Emmanuelle Grosjean, Chris Carson, Lidena K. Carr, Grace Butcher, Christopher J. Boreham, Dave Dewhurst, Lionel Esteban, Chris Southby, Paul A. Henson
Australian Petroleum Production & Exploration Association (APPEA) Journal
... data set (Jolliffe and Cadima 2015). After normalising the input data, a symmetric covariance matrix is constructed to list the correlations among...
2023
The high-magnesium calcite origin of nummulitid foraminifera and implications for the identification of calcite diagenesis
Laura J. Cotton, David Evans, Simon J. Beavington-Penney
PALAIOS
... vibrations at 1084 cmÀ1 (t1; CO3 symmetric stretch), 872 cmÀ1 (t2; out-of-plane bend), 1404 cmÀ1 (t3; antisymmetric stretch), and 719 cmÀ1 (t4; in-plane bend...
2020
Sedimentary Structures Generated by Flow in Alluvial Channels
D. B. Simons, E. V. Rlchardson, C. F. Nordin JR.
Special Publications of SEPM
... and the truncated dunes and filled troughs showed plainly through the observation walls of the flume The sand symmetric waves in phase with the surface waves...
1960
Interplay of Autogenic and Allogenic Processes On the Formation of Shallow Carbonate Cycles in a Synrift Setting (Lower Pliensbachian, Traras Mountains, NW Algeria)
Salim Belkhedim, Emilia Jarochowska, Miloud Benhamou, Abdelkrim Nemra, Radouane Sadji, Axel Munnecke
Journal of Sedimentary Research (SEPM)
..., peritidal, symmetric or asymmetrical cycles arranged in a shallowing-upward trend and capped by subaerial exposure surfaces developed on peritidal...
2019
Classification of paralic channel sub-environments in an ancient system using outcrops: The Cretaceous Gallup system, New Mexico, U.S.A.
Wen Lin, Curtis Ferron, Sean Karner, Janok P. Bhattacharya
Journal of Sedimentary Research (SEPM)
...-stratification with symmetric ripple lamination at the top (Table 1). Table 1. Summary of facies and facies associations. Interpretation. Cross...
2020
Paleoclimatic Indicators and Inferred Devonian Paleolatitudes of Euramerica
B. J. Witzke, P. H. Heckel
CSPG Special Publications
..., similar latitudinal constraints may be expected. The distribution of continental glaciers is not necessarily symmetric about the poles but is influenced...
1988
Sediment-routing controls on sandstone bulk petrographic composition and texture across an ancient shelf: Example from Cretaceous Western Interior Basin, Utah and Colorado, U.S.A.
Janifar H. Lupin,, Gary J. Hampson
Journal of Sedimentary Research (SEPM)
.... The studied sandstones also all have values of skewness (Equation 4) that are close to zero, indicating a nearly symmetric distribution of grain size...
2020
Sedimentology and stratigraphic architecture of a fluvial to shallow-marine succession: The Jurassic Dhruma Formation, Saudi Arabia
Bassam Alshammari, Nigel P. Mountney, Luca Colombera, Mohammed A. Al-Masrahy
Journal of Sedimentary Research (SEPM)
...) (Hms). The sandy part contains cross-lamination and stacked symmetric bidirectional ripple forms (Collinson and Mountney 2019) that decrease...
2021
The initiation of the Mesoproterozoic Bylot basins (Nunavut, Arctic Canada) as recorded in the Nyeboe Formation, Fury and Hecla Group
Mollie Patzke, J. Wilder Greenman, Galen P. Halverson, Alessandro Ielpi
Journal of Sedimentary Research (SEPM)
... rippled sandstone is observed (Ssr; Fig. 10C. FA3 also contains a thin (8 cm) bed of dolomitic, symmetric, columnar stromatolites (Dst; Fig. 10D...
2021
THE MORPHODYNAMICS AND SEDIMENTOLOGY OF A SEASONALLY CONTROLLED MICROTIDAL TIDAL INLET: THE NARIVA RIVER TIDAL INLET, COCOS BAY, TRINIDAD
Saeed Khan, Brent Wilson, Ryan Ramsook, Hasley Vincent
Journal of Sedimentary Research (SEPM)
...-developed symmetric to slightly asymmetric ebb-tidal delta with eastward-directed ebb-tidal channel, and a well-developed recurved spit that showed...
2023
The Impact of Glacioclimatic Change on Pennsylvanian Cyclostratigraphy
Gerilyn S. Soreghan
CSPG Special Publications
... than symmetric (abcba, abcba) array of facies that shoal upward. Cycle boundaries are defined by emergence features (e.g., calcrete, cryptokarst...
1994
How to Model and Improve Our Understanding of Liquid-Rich Shale Reservoirs with Complex Organic/Inorganic Pore Network
Mohammad Khoshghadam, Aaditya Khanal, Neda Rabinejadganji, W. John Lee
Unconventional Resources Technology Conference (URTEC)
... on the assumption of symmetric properties. The sector model is 132 ft long, 330 ft wide, and 100 ft thick; with details shown in Figure 9. These dimensions...
2016
Basin Evolution of the Lower Proterozoic Kaniapiskau Supergroup, Central Labrador Miogeocline (Trough), Quebec
Christopher J. Le Gallais, Serge Lavoie
CSPG Bulletin
... and symmetric ripple marks are seen in some sections. Quartzites of the Wishart Formation are continuous from the western autochthonous zone across...
1982
The Nonacho Basin (Early Proterozoic), Northwest Territories, Canada: Sedimentation And Deformation In A Strike-Slip Setting
Lawrence B. Aspler, J. A. Donaldson
Special Publications of SEPM
... stratification and planar or ification Symmetric dune bedforms are sub facies mudstone breccia graded C Proximal lacustrine sequence of Unit C D...
1985
Stress Inversion via Borehole Image Log and Fracturing Data: Integrated Approach
Mojtaba P. Shahri, Hamed Chok, Jian Huang, Peter Elkington
Unconventional Resources Technology Conference (URTEC)
...etical average and is called the expected value. The results for the above simulation are shown in Table 2. Since we have a symmetric distribution, P5...
2016
Field Guide to the Geology of the Neogene Santa Maria Basin: From Rift to Uplift
Richard J. Behl, Pedro C. Ramirez, Richard G. Stanley
Pacific Section SEPM
... Figure 27. Correlation of chert-bearing intervals by by upright, symmetric to asymmetric folds, diatom biostratigraphy. The precursor for chert...
2000