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The AAPG/Datapages Combined Publications Database

Showing 5,194 Results. Searched 200,685 documents.

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Ascending

Phylogenetic community assembly over time in Eurasian Plio-Pleistocene mammals

Pasquale Raia

PALAIOS

... EA PCOMs (Table 4), although higher PSE values accrue to EA PCOMs 1, 2, and 6, in accordance with PSV and (the inverse of) the NRI course. TABLE 3...

2010

The Cadomin Formation: Stratigraphy, Sedimentology, and Tectonic Implications

J. R. McLean

CSPG Bulletin

.... A few possible cases of inverse graded bedding were seen but none was unequivocal. As Walker (1975, p. 141) pointed out, it is often difficult...

1977

Abstracts: Recovery of Low Frequency Data from 10Hz Geophones; #90173 (2015)

Malcolm B. Bertram, Gary F. Margrave

Search and Discovery.com

... created and inverted, then this inverse Butterworth wavelet was convolved with the 10Hz data. This provides a correction to both the amplitude...

2015

Continuous Sea-Floor Spreading in Red Sea: An Alternative Interpretation of Magnetic Anomaly Pattern

J. L. Labrecque , N. Zitellini

AAPG Bulletin

.... Schouten, H., and K. J. McCamy, 1972, Filtering marine magnetic anomalies: Journal of Geophysical Research, v. 77, p. 7089-7099. Schouten, H., K. J...

1985

Deblurring migration images with point spread function filter

Cewen Liu, Nanxun Dai, Wei Wu, Xiaofeng Wu, Mingjie Guo, Haohuan Fu

International Meeting for Applied Geoscience and Energy (IMAGE)

... be mainly summarized in the following three forms: 1) Directly calculating or approximating the Hessian inverse. Since the migration operator does...

2022

3D Radon transformation with axis dependent curvature

Faruq Akbar, Warren Ho, Sebastian Holland, Rodrigo Fuck

International Meeting for Applied Geoscience and Energy (IMAGE)

... as basis functions. The high-resolution sparse transformation is usually formulated as an inverse problem to solve the Radon domain coefficients to represent...

2024

ABSTRACT: Are Rescaled Decline Curves A Solution for Shale Gas Assessment?; #90122 (2011)

Jean-Yves Chatellier, Bob Menard, and Sylvestre Charles

Search and Discovery.com

... by the number of days). Many wells can thus be plotted at once and the curve is typical of an inverse function (harmonic behaviour) that is a simple and very...

2011

Concluding Remarks - Application of Resistivity-Tool-Response Modeling for Formation Evaluation - Archie Series No. 2

Hezhu Yin

AAPG Special Volumes

.... • Forward modeling of a given earth-resistivity profile to calculate a resistivity-tool response will result in a unique solution. Inverse modeling...

2011

Seismic Modeling of a Mixed Carbonate-Siliciclastic Prograded System Middle Permian, Midland Basin

D. G. Harris, J. F. Sarg

West Texas Geological Society

... two-dimensional forward and inverse modeling, the sequence geometries and the distribution of sandstones and major carbonate porosity trends...

1989

Swash Mark and Grain Flow

Asbury H. Sallenger, Jr.

Journal of Sedimentary Research (SEPM)

..., Floating sand in the formation of swash marks: Jour. Sed. Petrology, v. 8, p. 71. SALLENGER, A. H., 1979, Inverse grading and hydraulic equivalence...

1981

Abstract: Greedy Least-Squares and its Application in Radon Transforms; #90171 (2013)

Juefu Wang and Mark Ng

Search and Discovery.com

... only those model elements whose amplitude exceeds the threshold value. Recalling that the task of the Radon inverse problem is to find an optimal...

2013

The Use of Geoelectrical Imaging Surveys for the Delineation of Different Subsurface Geological and Man-Made Features

S. S. Abdul Nassir, C. Y. Lee

Geological Society of Malaysia (GSM)

... of the inverse section represents the original surface layer. This layer varies in thickness but in general it gradually becomes thicker as it progresses...

1999

The Gravity Method: Part 7. Geophysical Methods

T. R. LaFehr

AAPG Special Volumes

..., depending upon their sources. Two general approaches can be taken toward the interpretation of the residual anomaly: forward and inverse...

1992

Can Dispersive Pressure Cause Inverse Grading in Grain Flows?

Francois Legros

Journal of Sedimentary Research (SEPM)

...Can Dispersive Pressure Cause Inverse Grading in Grain Flows? Francois Legros 2002 166 170 Vol. 72 (2002) No. 1. (January) A theoretical analysis...

2002

Cretaceous–Cenozoic burial and exhumation history of the Chukchi shelf, offshore Arctic Alaska

William H. Craddock, and David W. Houseknecht

AAPG Bulletin

... complementary evidence for the timing of exhumation and suggesting a source-to-sink relationship. In the central Chukchi foreland, inverse modeling...

2016

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