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The AAPG/Datapages Combined Publications Database

Showing 5,480 Results. Searched 190,729 documents.

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Ascending

Thoughts and Speculations on Geodynamic Processes: Chapter 10

Peter A. Ziegler

AAPG Special Volumes

... hand, was associated with the opening of new oceanic basins, some of which are today no longer characterized by active spreading ridges. The main...

1988

An Analysis of a Seismic Reflection from the Base of a Gas Hydrate Zone, Offshore Peru (1)

JOHN J. MILLER , MYUNG W. LEE , and ROLAND VON HUENE

AAPG Bulletin

..., and was successful in collapsing the complex airgun signature into a clean spike. True-Amplitude Recovery A geometric spreading correction...

1991

Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method

Tianfei Zhu

Search and Discovery.com

... is the source point. The geometric spreading function E in equation 4 is determined by >J (x) / J (x 0 )@1/ 2 , (5) where J(x) is the Jacobian...

Unknown

Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method

Tianfei Zhu

Search and Discovery.com

... is the source point. The geometric spreading function E in equation 4 is determined by >J (x) / J (x 0 )@1/ 2 , (5) where J(x) is the Jacobian...

Unknown

Adjustments of Velocity Logs to Tie Geophone Surveys

Warren Hicks

Oklahoma City Geological Society

...Adjustments of Velocity Logs to Tie Geophone Surveys Warren Hicks 1961 135 138 Kokesh, F. P. and Blizard, R. B.: Geometric Factors in Sonic Logging...

1961

A Quantitative Model for Salt Deposition in Actively Spreading Basins; #30117 (2010)

Bernard Montaron and Paul Tapponnier

Search and Discovery.com

...A Quantitative Model for Salt Deposition in Actively Spreading Basins; #30117 (2010) Bernard Montaron and Paul Tapponnier Click to view presentation...

2010

Abstract: Modelling Near-field Effects in VSP-based Q-estimation Part 1: Theoretical Developments; #90171 (2013)

Arnim B. Haase and Robert R. Stewart

Search and Discovery.com

... bandwidth, 2) poorly constrained multiple scattering, and 3) geometric spreading losses. By contrast, the popular spectral ratio method of Q-estimation...

2013

Performance of Lower-Porosity Nugget Reservoirs, Anschutz Ranch East, Bessie Bottom, and North Pineview Fields, Utah and Wyoming

William J. Sercombe

Rocky Mountain Association of Geologists

.... The geometric average of cck90y’ permeabilities measured on the Bessie Bottom core was 0,64 md, where kgOis the lesser of two whole-core permeability...

1989

Analysis of Scale Exaggeration on Seismic Profiles (1)

DONALD S. STONE

AAPG Bulletin

... exaggeration factors, exaggerated dips, unexaggerated dips, and correction factors which are derived from the ratio of exaggerated orthogonal thicknesses...

1991

New Global Tectonics and "The New Geometry": DISCUSSION

Robert S. Dietz

AAPG Bulletin

..., no. 5305, p. 20-23. Le Pichon, X., and J. R. Heirtzler, 1968, Magnetic anomalies in the Indian Ocean and sea-floor spreading: Jour. Geophys. Research, v. 73...

1973

Size Analysis of Silt and Clay by Hydrophotometer: REPLY

Clifton F. Jordan, Jr.

Journal of Sedimentary Research (SEPM)

.... However, Mr. Tilly has pointed out that the values of mid-diameters in Table 1 on page 490 were presented as arithmetic means rather than as geometric...

1977

AAPG Archie Series, No. 1, Chapter 9: Borehole Image Logs in Thinly Bedded Reservoirs

Q. R. Passey, K. E. Dahlberg, K. B. Sullivan, H. Yin, R. A. Brackett, Y. H. Xiao, and A. G. Guzmán-Garcia

AAPG Special Volumes

... FMITM tool, Ve is referred to as the "EMEX" voltage. During logging the EMEX voltage is recorded every 0.1 in. [.25 cm]. An "EMEX correction...

2006

Stratigraphic Modeling and Interpretation--Geophysical Principles and Techniques: Section 3. Stratigraphic Models from Seismic Data

Norman S. Neidell, Elio Poggiagliolmi

AAPG Special Volumes

... includes well-log measurements from a variety of physical sensors. We can correlate seismic data with the geologic view in terms of geometric...

1977

The Hydraulic Shape of Sand Particles

Louis I. Briggs, David S. Mcculloch, Frank Moser

Journal of Sedimentary Research (SEPM)

.... The results are compared with geometric shape measures obtained from the triaxial dimensions of each particle. The geometric shape measures all show a high...

1962

Sedimentology of Large Olistoliths, Southern Cordillera Central, Hispaniola

Christoph Heubeck

Journal of Sedimentary Research (SEPM)

...: Sedimentology, v. 23, p. 213-234. ROSENCRANTZ, E., ROSS, M.I., AND SCLATER, J.G., 1988, Age and spreading history of the Cayman Trough as determined from depth...

1992

Geochemistry and Petrology of Volcanic Rocks from the Woodlark Basin: Addressing Questions of Ridge Subduction

M. R. Perfit, C. H. Langmuir, M. Backisapa, B. Chappell, R. W. Johnson, H. Staudigel, S. R. Taylor

Circum Pacific Council Publications

... ABSTRACT The Woodlark Basin consists primarily of crust formed at the Woodlark spreading center over the last five million years. The basin...

1987

The Brazilian Equatorial Margin: A Snapshot in Time of an Oblique Rifted Margin, #30325 (2014)

Ana Krueger, Mike Murphy, Kevin Burke, Ed Gilbert

Search and Discovery.com

... zone (COTZ) is not normal to the direction of seafloor spreading and to the trend of fracture zones. Other examples of oblique rifted margins include...

2014

A Sound Exposure Level (SEL) Study for a 3D Seismic Survey off the WA Coastline, Browse Basin

Andrew S. Long, Jens F. Wisløff, Jaafar Ali, Averrouz Mostavan, David Hedgeland, Alec J. Duncan, Amos L. Maggi, Jeremy Colman

Petroleum Exploration Society of Australia (PESA)

... is denoted in units of Pascals (Pa). It is in no radius from the acoustic source (DEHWA, of wavefront spreading, and the interference sense an averaged...

2011

A Test of New Global Tectonics: Comparisons of Northeast Pacific and California Structures

Mason L. Hill

AAPG Bulletin

.... 5855-5899. Larson, R. L., H. W. Menard, and S. M. Smith, 1968, Gulf of California: a result of ocean-floor spreading and transform faulting: Science, v. 161...

1971

Plate Convergence and Accretion in Taiwan-Luzon Region

Carl Bowin , Richard S. Lu , Chao-Shing Lee , Hans Schouten

AAPG Bulletin

... west of Luzon are associated with the crest of an extinct spreading ridge which formed the deep part of the China basin by separating older...

1978

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