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Showing 1,739 Results. Searched 200,693 documents.
Gas Province in the Deepwater Southern Gulf of Mexico
Leonardo E. Aguilera Gomez, Enrique Guzman Vera, Javier Contreras Trejo, Marco A. Arreguin Lopez, Arturo Escamilla Herrera
GCAGS Transactions
... to salt intrusions of the Salina del Golfo province, west of the study area (Fig. 1). This deformation generated symmetric and asymmetric anticlines...
2011
Some Inference Problems in Paleocurrent Studies
David J. Sanderson
Journal of Sedimentary Research (SEPM)
..., e.g., symmetric ripple marks, pebble, grain or fossil alignment etc. The type of directional data influences the approach to the inference problem...
1973
Trishear: A Review of Kinematics, Mechanics, and Applications
Stuart Hardy, Richard W. Allmendinger
AAPG Special Volumes
..., the apex of which is focused on the fault tip line and which, Erslev (1991) argued, must be symmetric with respect to the fault plane. The algorithm...
2011
Nearshore Bedform Patterns Along Rhode Island from Side-Scan Sonar Surveys
Andrew Morang , Robert L. McMaster
Journal of Sedimentary Research (SEPM)
... of symmetric and asymmetric bedforms similar to those described by Clifton (1976) off non-barred beaches in Washington, Oregon, and southern Spain were...
1980
The Hydraulic Equivalence of Mica
Larry J. Doyle, Kendall L. Carder, Robert G. Steward
Journal of Sedimentary Research (SEPM)
... problem for a class of axially symmetric bodies: Jour. Fluid Mech., v. 7, p. 529-549. PARK, Y. A., AND PILKEY, O. H., 1981, Detrital mica: environmental...
1983
Passive Margin Stratigraphy: Chapter 8
Charles L. Angevine, Paul L. Heller, Chris Paola
AAPG Special Volumes
... glacioeustatic variations cause symmetric rises and falls. The long-term sea-level fall is based on a reconstruction by Kominz (1984). Onlap curve...
1990
Crystallographic Influences on Intergranular Pressure Solution in a Quartzose Sandstone
Brian D. Hicks, Kenneth R. Applin, David W. Houseknecht
Journal of Sedimentary Research (SEPM)
... in an orthorhombic packing arrangement, a plot of the poles to the contact planes would be radially symmetric about the maximum stress vector. Thus...
1986
1.3 Igneous Structures: The Little Murray Ridge
R. S. White
AAPG Special Volumes
... symmetric cross section of the ridge with a slope of 8o on both flanks. The sediment cap is probably formed by a lithified carbonate bank or by a reef...
1983
3.4 Detached Sediments: 3.4.2 Decollement Tectonics (B-Subduction) and Active Margins: OBC 5-A: Overthrusting in a Deep-Water Carbonate Terrane
J. A. Austin, Jr.
AAPG Special Volumes
... dips toward the island margin. However, a broad, symmetric fold (fold #1) almost 20 km (12.4 mi) across begins to disrupt the basin stratigraphy...
1983
I. Relating Seismic Data to Stratigraphy
Norman S. Neidell
AAPG Special Volumes
.... In one panel the original waveform is present while in the second, a shorter waveform of simple symmetric character has been introduced. An increase...
1979
V. Contributions of GeoSeismic Modeling
Norman S. Neidell
AAPG Special Volumes
.... A wavelet processed section using a symmetric simple waveform yields a more readily interpretable section. In this case, the sand is sufficiently thick...
1979
Statistical Analysis of Turbidite Cycles in Submarine Fan Successions: Tests for Short-Term Persistence
Chengsheng Chen, Richard N. Hiscott
Journal of Sedimentary Research (SEPM)
... and/or very thin beds; 9 displays a symmetric pattern; 10 a stepwise pattern; and 11 a grouped pattern of thin and thick beds. Packets 12 through 16 were...
1999
Determination of Paleocurrent Direction from Oblique Sections of Trough Cross-Stratification--A Precise Approach: RESEARCH METHODS PAPER
Prabir Dasgupta
Journal of Sedimentary Research (SEPM)
... by the symmetric trace of the bounding surface. Z;prZ; is the trace of the axial plane and YY is the trace of the basal (xy) plane on this section. B...
2002
Chapter 91: Slope-channel Complex Fill and Overbank Architecture, Tinker Channel, Kirkgecit Formation, Turkey
Bryan T. Cronin, Hasan Çelik, Andrew Hurst, Murat Gul, Kemal Gürbüz, Adriano Mazzini, Michael Overstolz
AAPG Special Volumes
..., and mudstones. Each fill element is confined within an erosive surface, which is broadly symmetric about its own axis. The fill elements are separated by finer...
2007
Chapter 3: Introduction: Atlas of Deep-water Outcrops
Roger D. Shew, Gary S. Steffens, Joseph R. J. Studlick
AAPG Special Volumes
... resolvable on seismic; seismic loops may be symmetric or skewed. 5. Occurrence: Basin plain and inner to outer fan, but the midfan lobe is most common...
2007
Influence of Clast Axial Ratio on Macrofabric Strength in Periglacial Colluvium
Susan W.S. Millar, Frederick E. Nelson
Journal of Sedimentary Research (SEPM)
... et al. (1987, Chapter 3), eigenvalues and eigenvectors were extracted from the symmetric 3 3 "orientation matrix" T formed by the sums of squares...
2003
Age Dating of Muscovites from Pennsylvanian Sandstones near Wamego, Kansas: GEOLOGICAL NOTES
D. G. Brookins , J. D. Voss
AAPG Bulletin
...) illite is more abundant and its peaks more symmetric in the sheet sandstone than in the channel sandstone. In addition, chlorite is generally...
1970
Pendulum Effect and Niger Delta Prolific Belt: GEOLOGIC NOTES
Gerard C. Dailly
AAPG Bulletin
... which blows along the axis of the Niger River and creates two symmetric longshore currents (Allen, 1965). However, two reentrants are present...
1976
Internal Kinematics of Salt Diapirs: REPLY
C. J. Talbot , M. P. A. Jackson
AAPG Bulletin
... are ideally symmetric about a vertical axis. In nature, the tendency for asymmetry or tilting is even greater than in the laboratory because of lateral...
1989
Generation and Migration of Petroleum from Abnormally Pressured Fluid Compartments: Discussion (1)
JOZSEF TOTH, M. D. MACCAGNO, C. J. OTTO, and B. J. ROSTRON
AAPG Bulletin
... within hardened rock zones. (5) The typical position of hardened rock zones is approximately central in topographically symmetric basins (intermontane...
1991
Emplacement and evolution of the Mahogany salt body, central Louisiana outer shelf, northern Gulf of Mexico
Mark G. Rowan, Robert A. Ratliff, Bruce D. Trudgill, Jaime Barceló Duarte
AAPG Bulletin
...), and symmetric, bulb-shaped salt stocks, in which salt spreads radially from vertical feeders (Figure 3b) (Rowan, 1997). In both cases, lateral salt...
2001
Factors controlling porosity in Upper CarboniferousLower Permian carbonate strata of the Barents Sea
S. N. Ehrenberg
AAPG Bulletin
... dolostones have higher average porosity with symmetric distribution (few samples 5% porosity). The low limestone porosities result from cementation...
2004
Salt tectonics driven by sediment progradation: Part IIRadial spreading of sedimentary lobes prograding above salt
V. Gaullier, B. C. Vendeville
AAPG Bulletin
... extension and the lack of available source layer force diapirs to fall. In our model, the ridges started to subside rapidly and became symmetric...
2005
Multiple thrust detachments and their implications for hydrocarbon accumulation in the northeastern Sichuan Basin, southwestern China
Chuanxin Li, Dengfa He, Guo Lu, Kai Wen, Abijah Simon, and Yanpeng Sun
AAPG Bulletin
... The thrust belt in the NESB is composed of a series of subparallel tight, nearly symmetric anticlines and gentle synclines (Figure 1; Sichuan Bureau...
2021
Abstract: A Ray+Waveform Inversion for the Potency Tensor; #90187 (2014)
Scott Leaney and Chris Chapman
Search and Discovery.com
...van Gelder, B.H.W. and Soler, T., 2007, On covariance propagation of eigenparameters of symmetric n-D tensors, Geophys. J. Int., 170, 503-510. Heaton, T.H...
2014