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The AAPG/Datapages Combined Publications Database

Showing 11,354 Results. Searched 190,142 documents.

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First-Arrival Traveltime Inversion in the CMP Domain: Method and Application

Search and

... Geometry of the First-Arrival Diebold et al. (1981) extended the concept of CMP from reflected waves to turning waves. In the case of CMP geometry, where...


Marine Seismic Sources: Part II: Air-Gun Arrays for Non Experts

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... at angles larger than a critical angle to the vertical, determined by the ratio of sound velocity in water and sea bottom, will be reflected back...


Seismic Detection of Overpressuring and Fracturing: An Example from the Qaidam Basin, People’s Republic of China

Robert J. Paul

Southeast Asia Petroleum Exploration Society (SEAPEX)

..., so refraction and residual reflection statics were applied. Cascaded F-K migration provided the best solution to the steeply dipping structural flanks...


Methods of Preparing Areas for Deep Drilling in the Orenburg Region

A. V. Ovcharenko

Petroleum Geology: A Digest of Russian Literature

... complicate the structure of the Upper Permian beds by elements that are not reflected in the sub-salt sediments. Therefore, structures in the eastern part...


Tectonics and Oil-Gas Potential of West Siberia

M. Ya. Rudkevich, L. Sh. Girshgorn

Petroleum Geology: A Digest of Russian Literature

... km2. Maximum thickness of the Upper Paleozoic-Triassic is 5-7 km. Reflection, common depth point, and refraction surveys indicate that beneath...


Evolution of Eastern Greater Antillean Island Arc

Thomas W. Donnelly

AAPG Bulletin

.... Seismic refraction surveys by the Woods Hole Oceanographic Institution (summarized by Officer et al., 1959) and gravity observations (Shurbet and Worzel...


Abstract: Practical Applications of Seismic Anisotropy; #90187 (2014)

Philip Wild

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... offset (AVO) signature when the wave is reflected from the top or base of an anisotropic material, and a second exploits the polarizing effect...


Characterization and Identification of Kerogen and Bitumen and Determination of Thermal Maturation by Means of Qualitative and Quantitative Microscopical Techniques

Dr. Pieter van Gijzel

Special Publications of SEPM

... with a highly sensitive photomultiplier and a special illuminator to record very small intensities of light that is reflected or emitted...


Collophane from Miocene Brown Shales of California

E. Wayne Galliher

AAPG Bulletin

... complete, the grain has an unmistakable brass-yellow color and metallic luster in reflected light. Poor reflec ions are due either to the extreme...


Northwest Margin of California Continental Borderland: Marine Geology and Tectonic Evolution

James K. Crouch

AAPG Bulletin

.... 211-215. Crouch, J. K., et al, 1978, Multichannel seismic reflection and sonobuoy refraction data in the outer southern California borderland: U.S....


The Accretion of Gorgona Island, Colombia: Multichannel Seismic Evidence

Susan McGeary, Zvi Ben-Avraham

Circum Pacific Council Publications

... and seismic refraction data show high-density, high-velocity material underlying both the Western Cordillera and the coastal ranges, suggesting that all...


Mechanical stratigraphy and layer-bound normal faulting in the Upper-Cretaceous Niobrara Formation, Wattenberg Field, Colorado

Kyle A. Bracken

Rocky Mountain Association of Geologists

...° in the Carlile and Greenhorn formations. The fault dip refraction produces a contractional step or bend in the fault plane associated with the lower dip...


Structural Configuration of the Kishenehn Basin Delineated by Geophysical Methods, Northwestern Montana and Southeastern British Columbia

Kurt Constenius

Rocky Mountain Association of Geologists

... and Nyack fault svstems, as reflected in the thickness and configuration of Kishenehn basin-fill sediments. Four northeast-~outhwest- 15 trending gravity...


An Integrated Geophysical Analysis of Crustal Structure in the Wichita Uplift Region of Southern Oklahoma

Amanda Rondot Buckey

Oklahoma City Geological Society

... techniques, I picked numerous refracted and reflected phases and then performed ray-tracing modeling of these picks to build a P-wave seismic-velocity...


Geologic Evolution of North Sea and Its Tectonic Framework

P. A. Ziegler

AAPG Bulletin

... sedimentation studies: AAPG Bull., v. 56, p. 1048-1071. Griffiths, D. H., R. F. King, M. A. Khan, and D. J. Blundell, 1971, Seismic refraction line...


Mapping Stratigraphic Traps with Electrical Transients

Jamil Azad

CSPG Bulletin

... out in the instruments and eliminated. Telluric Noise The variable electromagnetic transmission from the sun is reflected by variable telluric...


Mesozoic Extension and Styles of Basin Formation in Atlantic Canada: Chapter 12: North American Margins

A. J. Tankard, H. J. Welsink

AAPG Special Volumes

... Pennsylvania: Geology, v. 14, p. 766-770. Reid, I., 1988, Crustal structure beneath the southern Grand Banks: seismic-refraction results...


Technological Revolution in Petroleum Exploration: Chapter 11

Edgar Wesley Owen, C. V. Millikan

AAPG Special Volumes

... the refraction and the reflection geophones, it is now quite apparent that refracted and reflected waves were considered to be quite different in character...


The Geology of the Irish Sea

J. E. Wright

CSPG Special Publications

...) prompted an offshore seismic refraction survey by Griffiths et. al., (1961) in Tremadoc Bay, followed by further refraction surveys in the same area...


Net Directions and Rates of Present-Day Beach Sediment Transport by Littoral Drift along the East Coast of Peninsular Malaysia

J. K. Raj

Geological Society of Malaysia (GSM)

... transport directions caused by wave refraction at these islands. Average, annual rates of the sediment transport are all of very low values, being less...


Seismic tomographic cross-sections of the Bowser Basin in northwest British Columbia, Canada

David B. Snyder, Brian J. Roberts

CSPG Bulletin

... refraction survey. Geophysical Research Letters, v. 33, no. 7, L07312, doi:10.1029/2005GL025194. Lowe, C., Baker, J. and Evenchick, C.A. 2006...


Reversal of Basement-Block Motions in Cambay Basin, India, and its Importance in Petroleum Exploration

L. R. Chowdhary

AAPG Bulletin

..., Jr., 1966, Seismic refraction measurements in the northwest Indian Ocean: Jour. Geophys. Research, v. 71, p. 427-499. Galley, J. E., 1958, Oil...


Abstract: The possible use of the amplitude of a reflected sound field for the determination of seabed properties

Alasdair G. McKay

Atlantic Geology

...Abstract: The possible use of the amplitude of a reflected sound field for the determination of seabed properties Alasdair G. McKay 50 The possible...


Opaque Minerals as Aids in Distinguishing Between Source and Sorting Effects on Beach-sand Mineralogy in Southwestern Oregon

Gretchen Luepke

Journal of Sedimentary Research (SEPM)

..., Mounting and polishing mineral grains on a microscope slide for study with reflected and polarized light: Econ. Geology, v. 59, no. 2, p. 291-298...


Integrated Regional Geophysical Investigations of the Southeast of the Russian Platform

Iu. N. Godin

Petroleum Geology: A Digest of Russian Literature

... where use of the method of reflected waves is difficult; c) method of single transverse probes for the purpose of distinguishing anomolous recording...


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