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The AAPG/Datapages Combined Publications Database
Showing 4,739 Results. Searched 200,635 documents.
Primary Rhombic Calcite In Sedimentary Carbonates: NOTES
R. D. Perkins
Journal of Sedimentary Research (SEPM)
... used criterion for distinguishing dolomite in thin section is its tendency to form rhombic crystals. Although in many cases this is reliable...
1968
Polygonal Patterns in Muddy Tidal Flats: NOTES
Jean-Claude Dionne
Journal of Sedimentary Research (SEPM)
... of about 4 to 10 square meters. The surface of the polygons is usually horizontal or slightly concave upward; micro-reliefs up to 20 cm in height occur...
1971
Identification of Leonardite, a Naturally Oxidized Lignite, by Low-Angle X-ray Scattering Method
Paul L. Broughton
Journal of Sedimentary Research (SEPM)
... as another distinguishing characteristic. This note describes the characteristic low angle X-ray scattering analyses of leonardite, a method which can...
1972
The Control of Mud Crack Patterns by Small Gastropod Trails
Christopher T. Baldwin
Journal of Sedimentary Research (SEPM)
... Armoricain shallow water sediments revealed a difficulty in distinguishing surface traces of biogenic origin from inorganic mud cracks. Specimens were...
1974
AAPG Memoir 76, Chapter 9: Pore-Pressure Estimation in an Active Thrust Region and Its Impact on Exploration and Drilling
Allison Hennig, Najwa Yassir, M. Anthony Addis, and Andrew Warrington
AAPG Special Volumes
.... Barton, S. C. Bandis, and J. P. Henri, 1990, Laboratory studies on the stability of vertical and deviated wellbores: 65th Annual Society...
2001
A Regression Technique for the Analysis of Shales by X-ray Diffractometry
John M. Cubitt
Journal of Sedimentary Research (SEPM)
.... This indicates that peak area measurements are more effective than peak height measurements for distinguishing between samples. Note, however...
1975
Abstract: Methodology in Surface Evaluation of the Fold and Thrust Belt Region (Geology Poster 14)
W Suraya Alssendra, M Hilman, B Roslan, Suhaileen Shahar
Geological Society of Malaysia (GSM)
... the structure interpretation for example in distinguishing between an antiform or synform PROSPECTIVE CORNERS IDENTIFICATION Structure and Stratigraphy...
2011
Abstract: The Role of Play-Based Exploration in Heartland Portfolio Rejuvenation, Offshore and Onshore Sarawak, Malaysia (Paper B1)
S. J. Gough, E. W. Adams, T. Evers
Geological Society of Malaysia (GSM)
... workflow, a solid regional understanding of the Sarawak basin has been established, including a modified tectono-stratigraphic framework distinguishing two...
2012
Oil-Gas Prospects of Bashkortostan
Yu. V. Kazantsev, T. T. Kazantseva, M. A. Kamaletdinov
Petroleum Geology: A Digest of Russian Literature
.... The overthrusts flatten out with depth to sub-horizontal. Lateral displacement on them ranges from tens of meters to 2 km. Highs with heights of 100 to 200 m occur...
1995
Small-scale Cross-bedding Measured in Sediment Peels: METHOD PAPER
R. C. Lindholm
Journal of Sedimentary Research (SEPM)
... crested ripples, etc.) and (2) environmental significance of cross-bedding variability, as an aid in distinguishing fluvial, marine and aeolian...
1980
Oil-Gas Prospects of Triassic Complex on Shelf of Barents and Pechora Seas
Ye. V. Zakharov, I. B. Kulibakina
Petroleum Geology: A Digest of Russian Literature
... Charkobozh and Kharaley Formations are redbeds, which reflect an arid climate. One of the distinguishing features of this part of the section...
1997
Effective Pay Determination: Part 6. Geological Methods
Gerard C. Gaynor, Robert M. Sneider
AAPG Special Volumes
... and King (1984). Well and production tests are often taken over too large an interval in the wellbore to be precise in distinguishing pay and nonpay...
1992
Structural-Geomorphological Prediction of Oil-Gas Potential of Structures in Paleozoic Rocks of Lower Volga Region
V. A. Prokhorov
Petroleum Geology: A Digest of Russian Literature
... of exploration contributes well for delineating structures. A distinguishing characteristic of these structures is their length of tens of kilometers...
1999
Supra-Salt Sediments - New Exploration Target for Hydrocarbon Deposits in South of Orenburg Region
S. M. Karnaukhov, A. M. Tyurin, G. V. Leonov
Petroleum Geology: A Digest of Russian Literature
... Caspian depression are salt ridges. In the Kainsay-Linev zone the salt ridges have nearly vertical flanks complicated by salt cornices. See figure 1...
2000
Geology and Seismo-Facies Analysis of Erosional Cuts in Tournaisian Limestones of Bashkortostan
V. Ye Tomilin
Petroleum Geology: A Digest of Russian Literature
.... A distinguishing feature of the sediments filling the cuts is not so much the lithologic variability as the combination of abrupt increases in thickness...
2003
Some Structural Characteristics of Visean Erosional Cuts in Udmurtia
I. K. Shpilevaya, Ye. V. Trofimova, V. F. Furman, A. G. Istomin
Petroleum Geology: A Digest of Russian Literature
... change in total thickness. In some wells in the cuts these same strata continus but with greater thickness. A distinguishing feature of this model...
2003
Weathering of Silicate Minerals: DISCUSSION
C. P. Gravenor , G. J. Govett
AAPG Bulletin
... for Distinguishing Minerals by Abrasion pH," Amer. Min., Vol. 33, pp. 31-49. End_of_Article - Last_Page 2525------------ When common rock-forming...
1958
There Is A Reason
Gordon Rittenhouse
AAPG Bulletin
... vertical, or that low porosity, close packing, and the kinds and number of contacts between pebbles indicate extensive post-depositional modification...
1959
Geochemical Classification of Terrigenous Sands and Shales from Core or Log Data
Michael M. Herron
Journal of Sedimentary Research (SEPM)
... the SiO2/Al2O3 and Na2O/K2O ratios to sandstone type as displ yed in Figure 1. Unfortunately, the Na2O/K2O ratio is not well suited to distinguishing lithic...
1988
Application of Contrast Control Filters in Black and White Photomicrography: RESEARCH METHOD PAPER
J. Bryan Tapp, Dennis R. Prezbindowski
Journal of Sedimentary Research (SEPM)
... tone distinguishing them from the cements. Photomicrograph b was exposed with the film rated at 20 ASA. The sample was stained for calcite using...
1990
Use of Bulk Chemical Analyses in Stratigraphic Correlation of Sandstones: An Example from the Statfjord Nord Field, Norwegian Continental Shelf
S.N. Ehrenberg, E. Siring
Journal of Sedimentary Research (SEPM)
... cited by these authors). Various authors have also used bulk chemical data for distinguishing between specific units of clastic and carbonate strata...
1992
Devonian Cavity Fillings in Subsurface Silurian Carbonates of West Texas: GEOLOGICAL NOTES
Fred L. Peirce
AAPG Bulletin
... with their distinguishing characteristics. Notably patchy occurrences of Devonian rocks at the surface in the Llano area of central Texas have been...
1962
A Multi-depth Probe for Measuring Oxidation-reduction (redox) Potential in Wetland Soils: RESEARCH METHOD PAPER
Thomas G. Hargis, Robert R. Twilley
Journal of Sedimentary Research (SEPM)
.... End_of_Record - Last_Page 685------- One of the most distinguishing characteristics of wetland soils is the anaerobic condition due to water...
1994
Eocene Age of Almy Formation, Wyoming, in its Type Area: GEOLOGICAL NOTES
Steven S. Oriel , C. Lewis Gazin , Joshua I. Tracey, Jr.
AAPG Bulletin
... criteria for distinguishing the Almy and the Knight in the Fossil basin are equivocal. The Fowkes Formation does not separate the Almy and Knight...
1962
Stratigraphic Constraints on the Development and Timing of Arc-Continent Collision in Northern Papua New Guinea: DISCUSSION
R. H. Findlay
Journal of Sedimentary Research (SEPM)
... that the presence or absence of pillows is a useful field criterion for distinguishing between separate formations of basaltic lava. In respect...
1995