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The AAPG/Datapages Combined Publications Database

Showing 10,439 Results. Searched 189,743 documents.

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Abstract: Interferometric Approach to Complete Refraction Statics Solution; #90187 (2014)

Valentina Khatchatrian and Mike Galbraith

Search and Discovery.com

... model is obtained, using Snell’s law. Initial static corrections to replace weathering velocity with replacement velocity are also computed at this step...

2014

A Novel Method of Deriving Weathering Statics from First Arrival Refractions

G. W. Hollingshead, R. R. Slater

Pacific Section of AAPG

... these data are plotted in an interlocked fashion. Figure 9. Delay Time Plots Figure 10. Interlocked Delay Time Curves Final Weathering Calculations...

1980

Weathering Pits in Jurassic Sandstones: Cosmogenic Exposure Age Dating of Geomorphic Surfaces in Southern Utah

Marjorie A. Chan, John Gosse, Thure E. Cerling, Dennis Netoff

Utah Geological Association

...Weathering Pits in Jurassic Sandstones: Cosmogenic Exposure Age Dating of Geomorphic Surfaces in Southern Utah Marjorie A. Chan, John Gosse, Thure E...

2010

Abstract: Near Surface Anomalies and Solutions; #90211 (2015)

Todd Mojesky, David LeMeur, and Ali Karagul

Search and Discovery.com

... (weathering, bogs, swamps, limestone outcrops, rapid changes in elevations, permafrost, dunes, wadis...) introduce large changes in travel times, creating...

2015

The Need for Seismic Dip Migration

W. B. Robinson.

Oklahoma City Geological Society

... are used in our seismic depth calculations. The horizontally moving energy assists us in calculating our weathering corrections or adjustments...

1958

Seismic Velocity Variations in San Joaquin Valley, California

Walter S. Olson

AAPG Bulletin

... VELOCITIES VS. DEPTH FROM BASE OF WEATHERING End_Page 1348------------------------------ One of the problems is the correlation of reflecting horizons...

1941

Marine Statics

Chiem Boon Hong

Geological Society of Malaysia (GSM)

... m Static corrections are a well known step land seismic processing to correct for the effect of time delay due to weathering layers and elevations...

1987

erformance of Seismic Arrays in the Presence of Weathering Layer Variations, #41841 (2016).

Jubran Akram, Abdullatif A. Al-Shuhail

Search and Discovery.com

... of the plane wavefront, Vw is the weathering layer velocity, b is the channel depth, and β is the angle of the line connecting the intersection point...

2016

Chemical History of Oceans: ABSTRACT

Fred T. MacKenzie, Robert M. Garrels

AAPG Bulletin

... volatiles to give sedimentary rocks plus seawater" has long been the basis for geochemical balance calculations, and also the basis for chemical arguments...

1971

Weathering of Glacial Tills in Indiana: II. Heavy Minerals

N. Bhattacharya

Journal of Sedimentary Research (SEPM)

...Weathering of Glacial Tills in Indiana: II. Heavy Minerals N. Bhattacharya 1963 Vol. 33 No. 3. (September), Petrographic data from weathered...

1963

Diagenetic Mineralogy, Geochemistry, and Dynamics of Mesozoic Arkoses, Hartford Rift Basin, Connecticut, U.S.A.

Enrique Merino , Jean-Pierre Girard , Michael T. May , Vishnu Ranganathan

Journal of Sedimentary Research (SEPM)

... corrections for recent weathering I/S in the finest fraction and for old detrital muscovite in the coarsest fraction are made) indicates the data...

1997

Corrected Record Sections

Ernest M. Hall Jr.

CSPG Special Publications

... for differences in elevation and depth of weathering at each trace. Consequently, to position each trace of a reflecting horizon with respect to a datum...

1957

Seismic Data-Processing Techniques in Exploration for Reefs, Northern Michigan

P. L. McClintock

AAPG Special Volumes

... with seismic information in northern Michigan are noise (both random and coherent), "multiples" or reverberations, and weathering and drift variations...

1977

Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and Discovery.com

... using different near surface weathering static calculations and different velocity model building strategies are compared. In the first processing, we...

2015

Some Applications and Problems of the Seismic Refraction Technique in Civil Engineering Projects in Malaysia

B. K. Lim, S. J. Jones

Geological Society of Malaysia (GSM)

... methods such as the Hawkins’ method allow for depth estimation beneath each geophone within the overlapped section, such calculations are made...

1982

Imaging Seismic Data with High Resolution Gravity Data.

R. Opfer

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

.... Elevation or datum corrections are straightforward, although, it will be shown that even elevation corrections can introduce statics that affect...

2003

Plant-Induced Weathering of Hawaiian Basalts

Robert A. Berner, M. Ford Cochran

Journal of Sedimentary Research (SEPM)

...Plant-Induced Weathering of Hawaiian Basalts Robert A. Berner, M. Ford Cochran 1998 Vol. 68 (1998), No. 5. (September), The rise of rooted upland...

1998

Occurrence of Alkali Metals in Some Gulf of Mexico Sediments

Charles W. Welby

Journal of Sedimentary Research (SEPM)

.... The alkali metal content of the sediments apparently does not vary systematically with depth below the present sedimentary interface or with distance from...

1958

Modelling complex near-surface features to improve shallow seismic exploration.

Shaun Strong

Petroleum Exploration Society of Australia (PESA)

... have examined a number of different weathering variations. These include high velocity weathering, variable depth weathering, multi-layer weathering...

2018

Graphic Representation of Chemical Weathering

Parry Reiche

Journal of Sedimentary Research (SEPM)

...Graphic Representation of Chemical Weathering Parry Reiche 1943 Vol. 13 No. 2. (August), The several graphic devices available for use with studies...

1943

Paleoclimatology and the Relative Stability of Feldspar Minerals Under Atmospheric Conditions

Thomas W. Todd

Journal of Sedimentary Research (SEPM)

...), An investigation of degree of kaolinitic weathering alteration of feldspar grains present in samples of Domengine (Eocene; northern California) sandstone...

1968

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