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The AAPG/Datapages Combined Publications Database
Showing 10,781 Results. Searched 195,364 documents.
Weathering of Rocks in Arctic and Sub-Arctic Environment
P. P. Hudec
CSPG Special Publications
...Weathering of Rocks in Arctic and Sub-Arctic Environment P. P. Hudec 1973 313 335 The rocks found in the sub-Arctic and Arctic environments...
1973
Determining the mineralogy of sedimentary rocks from bulk geochemical analysis and chemofacies modeling
Search and Discovery.com
N/A
Extending the Resolution of Seismic Reflection Exploration
L. R. Denham
Pacific Section of AAPG
... roll by velocity filtering is used. Realistic values for frequency, depth and dip of reflections will usually give a minimum number of groups around 100...
1980
ABSTRACT: The Petrography of Ancient Organic Matter in Black Shale Weathering Profiles; #90113 (2010)
Lehne E. Slater and S. M. Rimmer
Search and Discovery.com
...ABSTRACT: The Petrography of Ancient Organic Matter in Black Shale Weathering Profiles; #90113 (2010) Lehne E. Slater and S. M. Rimmer...
2009
Study of Structure of Suwa Basin Near Kyoto, Japan, by Torsion Balance
M. Matsuyama, Y. Fujita, H. Higashinaka
AAPG Bulletin
... observation values can be made. If the depth and the dip of the bed rock are assumed, as shown in Figure 3, the calculated results satisfactorily...
1935
Organic Matter in Black Slate Shows Oxidative Degradation Within Only a Few Decades
Cornelius Fischer, Volker Karius, Volker Thiel
Journal of Sedimentary Research (SEPM)
.... 2002). Assuming a variable weathering depth, areas of black shale exposed to oxidative weathering can be calculated (Table 2). The higher the average...
2007
Clay Minerals as Cumulative Records of Their Environments: ABSTRACT
W. D. Keller
AAPG Bulletin
...) the energies (climate, weathering, sedimentation, etc.) that effect the changes on the materials, and (3) the flow of time through which the energies act...
1968
Detailed Stratigraphic Control Through Dip Computations
J. A. Gilreath , J. J. Maricelli
AAPG Bulletin
... to that of the basic resistivity log. The base of the arrow denotes both the depth of the level and the magnitude of the dip. The scale for amount of dip is shown...
1964
Techniques in Sedimentary Geochemistry: (1) Separation of the Detrital and Non-Detrital Fractions of Limestones
D. M. Hirst, G. D. Nicholls
Journal of Sedimentary Research (SEPM)
... in high quality carbon anodes accurately machined to the following dimensions: outside diameter 4.8 mm, crater internal diameter 3.2 mm, crater depth...
1958
Strontium Isotopes of Tertiary Phillipsites from the Southern Pacific: Timing of the Geochemical Evolution
Norbert Clauer
Journal of Sedimentary Research (SEPM)
... in "contaminant" authigenic phases. Careful leaching experiments with mass-balance calculations of the external and internal Rb and Sr of the zeolites...
1982
Critical Analysis of Stack Seismic Systems
L. E. Nugent, Jr.
AAPG Bulletin
... result in erroneous dip or fault indications. Furthermore, in some stack systems uphole data are not obtained and, in areas in which weathering problems...
1967
First-Arrival Traveltime Inversion in the CMP Domain: Method and Application
Search and Discovery.com
... layer thickness estimation because of absence of very near offsets associated with the shallowest weathering layer. The velocity-depth pairs of each...
2013
The Use of the Common Pb Isotope Composition of Detrital K-Feldspar Grains as a Provenance Tool and Its Application to Upper Carboniferous Paleodrainage, Northern England
S. Tyrrell, P.D.W. Haughton, J.S. Daly, T.F. Kokfelt, D. Gagnevin
Journal of Sedimentary Research (SEPM)
...-feldspar grains a useful provenance tool. However, it is unclear how robust this signal is, and to what extent it can be modified by weathering...
2006
Inferring Stratigraphy from Seismic Data
R. E. Sheriff
AAPG Bulletin
..., such as might result from variations in offset, source, geophone plant or streamer depth, delays in weathering or seafloor sediments...
1976
Some Petrophysical Aspects of the Mississippian "Chat" Glick Field, Kiowa County, Kansas
Jack D. Duren
Oklahoma City Geological Society
... that porosity below 15-20 per cent will be water filled. Free water level, i.e., where capillary pressure is zero, calculations from capillary pressure curves do...
1961
Abstract: Weathering Profiles over Granitic Bedrock - Morphological Zones, Seismic Velocities and Excavability Characteristics
John Kunaraj
Geological Society of Malaysia (GSM)
...Abstract: Weathering Profiles over Granitic Bedrock - Morphological Zones, Seismic Velocities and Excavability Characteristics John Kunaraj 283...
1982
Bulk Geochemistry of Woodlark Basin and Solomon Islands Offshore Sediments: Some Implications for Crustal Evolution
Keith A. W. Crook, Gordon R. Taylor, Barrie R. Bolton
Circum Pacific Council Publications
... versus Si02 mimic magmatic differentiation trends but result from chemical differentiation during weathering and sedimentation, rather than from...
1987
Abstract: Description and Classification of Filled Joint in Granite An Approach
Mohd. For Mohd. Amin, Azman Kassim
Geological Society of Malaysia (GSM)
... Engineering, UTM Skudai The weathering degree of joint blocks and its infilling affects the deformational behaviour of filled joint. To appreciate its behaviour...
1999
Influences of Modern Pedogenesis On Paleoclimate Estimates from Pennsylvanian and Permian Paleosols, Southeast Ohio, U.S.A.
Sarah J. Kogler, Daniel I. Hembree
Journal of Sedimentary Research (SEPM)
... fluorescence (XRF) for major-oxide geochemistry. These data were used to calculate molecular weathering ratios, MAP, and MAT at each depth. Results indicate...
2019
Laramide Mountain Flank Deformation and the Golden Fault Zone, Jefferson County, Colorado
Robert J. Weimer, R. Randy Ray
Rocky Mountain Association of Geologists
... DMO TIME MIGRATION PROCESSING SEQUENCE MERGE TWO OVER-LAPPING LINES 1) WEATHERING CORRECTIONS 2) ADJUST FOR CROOKED LINE 3) FINAL STACK 4) DIP MOVEOUT...
1997
Seismic Imaging through Outcropping Carbonates: An Example from the Canadian Rocky Mountains, , #41533 (2015).
Yong Hua, Don C. Lawton
Search and Discovery.com
..., Calgary, AB, Canada 2 Abstract We investigated a seismic time processing procedure that provides an optimum dataset for advanced depth imaging...
2015
Geophysical and Petrological Study of Precambrian of Central Alberta, Canada
G. D. Garland , R. A. Burwash
AAPG Bulletin
... Mountains, at least as far west as Banff. Depth estimates made from gravity profiles strongly suggest that the Precambrian has been uplifted beneath...
1959
Low-Porosity Haloes at Stylolites in the Feldspathic Upper Jurassic Ula Sandstone, Norwegian North Sea: An Integrated Petrographic and Chemical Mass-Balance Approach
Nicholas B. Harris
Journal of Sedimentary Research (SEPM)
... the stylolite. Chemical mass-balance calculations demonstrate that silica and elements associated with feldspar (Al2O3, Na2O, K2O) were exported from...
2006
Regularities in the Changes of Physical Parameters of Rocks in the Kuybyshev Trans-Volga Region
L. N. Elanskiy
Petroleum Geology: A Digest of Russian Literature
.... (October) 1. Andreev, B. A., 1954, Determination of the depth to the surface of the crystalline basement of platform areas according to magnetic...
1958