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The AAPG/Datapages Combined Publications Database

Showing 426 Results. Searched 188,614 documents.

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Calibration of PS Shear Wave Anisotropy in a Mississippi Lime Play, North-Central Oklahoma

Scott Singleton, Shihong Chi, Lisa Sanford, Paul Constance

Unconventional Resources Technology Conference (URTEC)

... characterization in unconventional plays. Introduction Shear wave splitting, or birefringence, is where shear waves split into two approximately orthogonal...

2016

No Slide Title

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N/A

Undulose Extinction in Fine-grained Rocks: NOTES

Robert E. Carver

Journal of Sedimentary Research (SEPM)

... of the effective birefringence of the grains. FOLK, R. L., AND WEAVER, C. E., 1952, A study of the texture and composition of chert: Am. Jour. of Sci., v...

1965

PS

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N/A

ABSTRACT: Peatification and Early Coalification of Wood as Deduced by Analytical Pyrolysis and Microscopic Methods

Scott A. Stout, William Spackman, Jaap J. Boon

The Society for Organic Petrology (TSOP)

... birefringence and $p~ctra1 fluorescence, were used as parameters by which suites of: incre?sing1y "coa1ified" woods, of specific genera, were arranged...

1987

Scotch Tape Aids Thin-Section Studies: GEOLOGICAL NOTES

John W. Harbaugh

AAPG Bulletin

... points of light when the microscope's nicol prisms are crossed. This is due to the birefringence of the scotch tape, which causes it to appear alternately...

1953

Detrital Grains: Other Detrital Grains

AAPG Special Volumes

... as pellets and were reworked into basinal turbidites. They show a darker, more typical, birefringence color than do the grains in the previous photo. Also...

1979

Chapter 4 - Grains: Accessory Minerals

Dana S. Ulmer-Scholle, Peter A. Scholle, Juergen Schieber, Robert J. Raine

AAPG Special Volumes

... birefringence under cross-polarized light. Muscovite flakes commonly have a layered internal structure (one perfect cleavage) when cut across foliation...

2014

Chapter 14 - Diagenesis: Zeolite Cements

Dana S. Ulmer-Scholle, Peter A. Scholle, Juergen Schieber, Robert J. Raine

AAPG Special Volumes

... of specific zeolite minerals in thin section generally is difficult because of the low birefringence common to this mineral group and the variability...

2014

Other Minerals: Dolomites and Evaporites

AAPG Special Volumes

... areas. Note characteristic low birefringence X.N. 0.38 mm. (Middle). Mississippian upper Debolt Fm. Canada. Gypsum crystals as replacement...

1978

Other Minerals: Phosphate and Glauconite

AAPG Special Volumes

... pellet origin. Green color and speckled greenish birefringence are characteristic for this mineral. X.N. 0.38 mm (Bottom). Up. Cambrian Meagher Fm...

1978

Identification of Dolomite: DISCUSSION

V. B. Tatarsky

Journal of Sedimentary Research (SEPM)

... of dolomite by the shape and extinction of its crystals, high birefringence, and =1.680 less reliable than its identification by X-ray diffraction patterns...

1965

Cements: PART 1

AAPG Special Volumes

... polarizers. Rhombic inclusions within chert have very high birefringence and are dolomite. Polycrystalline nature of both the chert and the cement...

1979

Opal-Cristobalite-Cemented Sands in Catahoula Formation--Implications on Source of Silica Cementation of Quartzose Sandstones: ABSTRACT

Ernest B. Ledger, Thomas T. Tieh

AAPG Bulletin

...) shows poorly developed banding of varying birefringence (or degree of crystallinity); (2) has shrinkage cracks apparently resulting from ordering...

1980

ABSTRACT: Imaging Anisotropic Symmetry Using Prestack Converted-Wave Seismic Data for Fracture Analysis; #90061 (2006)

Jason E. Gumble, James E. Gaiser, and Robert H. Tatham

Search and Discovery.com

... be imaged using both amplitudes, and time differences resulting from shear-wave birefringence. When applied to two real data sets, one in the Gulf...

2006

ABSTRACT: Petrologic and Geochemical Controls on Diagenesis for the Nanushuk Formation, North Slope, Alaska; #90125 (2011)

Davis, Jeremy M., McCarthy, Paul, Hanks, Cathy

Search and Discovery.com

... of the cement in the Grandstand. Detrital and authigenic clay minerals are distinguished based on birefringence and in situ dissolution of feldspar grains...

2011

Heavy-Mineral Techniques and Their Application to Venezuelan Stratigraphy

Gustavo Feo-Codecido

AAPG Bulletin

... (generally strong in Canada balsam), birefringence, extinction, interference colors, pleochroism, elongation sign, inclusions, and alteration products...

1956

Clays and Shales

AAPG Special Volumes

... birefringence. XN. 0.10 mm. (Middle). Eocene 'Plum Bentonite'. Texas. A smectite (montmorillonite) shale. Clays are best identified by X-ray diffraction...

1979

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