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The AAPG/Datapages Combined Publications Database
Showing 27,595 Results. Searched 195,387 documents.
Graphic Solution of Strike and Dip from Two Angular Components: DISCUSSION
M. King Hubbert
AAPG Bulletin
... dip. Let ^Thgr^prime be the angle of apparent dip in a vertical plane making an angle ^phgr with the vertical plane containing the true dip...
1931
Projection of Dip Angle on Profile Section: GEOLOGICAL NOTES
Stanley C. Herold
AAPG Bulletin
...Projection of Dip Angle on Profile Section: GEOLOGICAL NOTES Stanley C. Herold 1933 740 742 17 6. (June) A profile section which crosses the strike...
1933
Projection of Dip Angle on Profile Section: GEOLOGICAL NOTES
Lyndon L. Foley
AAPG Bulletin
...Projection of Dip Angle on Profile Section: GEOLOGICAL NOTES Lyndon L. Foley 1933 742 742 17 6. (June) Mr. Herold's ingenious solution of the problem...
1933
Depth of the Basal Shearing Plane in Cases of Simple Concentric Folding
Leslie Duska
CSPG Bulletin
... APPROACH In order to compute the depth of the basal shearing-plane in such cases, the above method must be extended by the use of additional data. One...
1961
New Mathematical and "Stereographic Net" Solutions to Problem of Two Tilts--With Applications to Core Orientation
Curtis H. Johnson
AAPG Bulletin
... elementary terms, the writer has chosen the solid geometry approach. The problem may be stated as follows: given any plane of known orientation (dip...
1939
Integration of UAV photogrammetry and kinematic analysis for rock slope stability assessment
Sharan Kumar Nagendran, Mohd Ashraf Mohamad Ismail, Wen Yan Tung
Geological Society of Malaysia (GSM)
... if frictionally unstable. On the other hand, any pole falling outside of the pole friction cone represent planes which dip steeper than the friction angle...
2019
Abstract: The Importance of Layer-Parallel Strain in Restoration of the Hangingwall of the Corsair Fault, Offshore Texas, by R. H. Groshong, Jr.; #90987 (1993).
Search and Discovery.com
1993
ABSTRACT: No Dip or Low Dip?, by James D. Morse; #91030 (2010)
Search and Discovery.com
2010
Angle-constrained VSP least-squares reverse-time migration based on a high-efficiency stabilized Poynting vector
Xuan Ke, Mauricio Sacchi, Ying Shi
International Meeting for Applied Geoscience and Energy (IMAGE)
...noticeable, as indicated by the blue arrows. However, it becomes evident that there is a considerable disparity in the dip angle between these...
2023
Vertical Net Sandstone Determination for Isopach Mapping of Hydrocarbon Reservoirs
Paul E. Pennebaker
AAPG Bulletin
.... As an example, wh re reservoir bed dip is 60° and a well bore drifts directly updip with a 7° angle of inclination, the true vertical net sandstone...
1972
Improvement of inverse scattering angle-domain common image gathers using optical flow
Ammir A. Karsou, Sérgio L. E. F. da Silva, Felipe V. Capuzzo, Felipe T. Costa, Jorge Lopez, Roger M. Moreira, Marco Cetale
International Meeting for Applied Geoscience and Energy (IMAGE)
... et al., 2011) but the method still requires extensive memory. The third approach is to calculate the opening angle from the source and receiver wave...
2023
Component Dip Nomogram
John Bemrose
Oklahoma City Geological Society
... and () the component of the true dip in a direction which makes an angle (o) with the direction of the true dip; then it is well known that: (1...
1958
Integrated Amplitude versus Offset (AVO) Approach for Delineating Stratigraphic Traps
M. Azuddin M. Yusof
Geological Society of Malaysia (GSM)
...Integrated Amplitude versus Offset (AVO) Approach for Delineating Stratigraphic Traps M. Azuddin M. Yusof 308 Integrated Amplitude versus Offset...
1999
Graphic Method for Determination of True Dip in Pits: GEOLOGICAL NOTES
Norman E. Weisbord
AAPG Bulletin
... be employed to determine the true dip of a stratum, given the angle and direction of the apparent dips on the adjacent walls of a pit. The following graphic...
1935
Conversion of Well Log Data to Subsurface Stratigraphic and Structural Information: Part 6. Geological Methods
Jeremy M. Boak
AAPG Special Volumes
... of that surface in a plane at an angle of to the dip direction. Fig. 7. Conditions under which true stratigraphic thickness calculated according to its...
1992
Construction of Geological Sections of Folds with Steep-Limb Attenuation
William Daniel Gill
AAPG Bulletin
... on equal-thickness projections bisects the angle of tangent intersection, progressively toward the steeper dip. The position of such "compensated boundary...
1953
An 'Elastic Impedance' Approach, by Satinder Chopra and Ritesh Kumar Sharma; #41082 (2012).
Search and Discovery.com
2012
Graphical Use of Cotangent in Determining Dip or Components of Dip: GEOLOGICAL NOTES
William N. Gilliland
AAPG Bulletin
... a rather obscure and incidental reference to an extremely simple procedure that may be used in determining angle of dip or any component of dip...
1954
Recognition of Faults, Unconformities, and Sequence Boundaries Using Cumulative Dip Plots
Neil F. Hurley
AAPG Bulletin
... of depth. In the latter approach, bedding planes are numbered consecutively from top to bottom of the logged interval, and dip directions are color coded...
1994
ABSTRACT: Imaging Structural Geology with Dip and Directional Dip, by Aqrawi, Ahmed A.; Boe, Trond Hellem; #90141 (2012)
Search and Discovery.com
2012
Nomographic Solutions of Dip Computation
W. A. Visser
AAPG Bulletin
... and the angle between strike and cross section. Then the ruler will cut the scale for the reduced dip in the point that represents the sought value. 2...
1947
Core and Image Log Analysis of Permian Paleowind Directions in the Unayzah-A Reservoir, Subsurface Eastern Central Saudi Arabia; #50734 (2012)
Mohammed Al-Masrahy, John Melvin, Osman Abdulatif, and M. H. Makkawi
Search and Discovery.com
... areas. They show high-angle cross-bedded, fine- to medium-grained sandstone. 10 Presenter’s notes: Facies 2- Core photographs illustrating eolian sand...
2012
Geometry of the Hanging Wall Above a System of Listric Normal Faults--A Numerical Solution
Renato M. Darros de Matos
AAPG Bulletin
..., 1983) assumes conservation of heave, and both throw and displacement vary with the fault dip angle. This implies a reduction of displacement downward...
1993
Abstract: Seismic Data Processing in Anisotropic Media, by V. Celis; #90951 (1996).
Search and Discovery.com
1996
Structural and Stratigraphic Uses of Dip Profiles in Petroleum Exploration
C. A. Bengtson
AAPG Special Volumes
... Dip profiles are graphs that show apparent dip as a function of distance along selected horizontal, vertical, or inclined lines on cross sections...
1982