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The AAPG/Datapages Combined Publications Database

Showing 11,103 Results. Searched 200,616 documents.

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Uniquely Rounded Desiccation Columns Near Euphrates River, Northwestern Iraq--Produced by Prolonged Erosion in Arid Climate: ABSTRACT

James R. Underwood, Jr., Y. Y. Youash, George Philip

AAPG Bulletin

... of such columns must lie in prolonged preservation and exposure--perhaps over a period of several years--to erosion, largely by weathering (including spheroidal...

1971

Trace Fossils of Middle Mississippian Carbonates, South-Central Indiana: ABSTRACT

Allen W. Archer

AAPG Bulletin

...: Chondrites, Cylindrichnus(?), Planolites, Teichichnus, and a Rhizocorallium-type trace. Degree of weathering exerts a considerable control on field...

1983

Evolution of a Carbonate-Siliciclastic Platform: Middle to Upper Cambrian of Western Newfoundland: ABSTRACT

N. Chow, N. P. James

AAPG Bulletin

..., 100-250-m (330-820-ft) thick, sedimentary cycles or Grand Cycles. The lower half of each cycle consists of recessive-weathering, thinly interbedded lime...

1984

Dolomitization Patterns in Subtidal Bighorn Dolomite (Upper Ordovician), Southeastern Wind River Range, Wyoming: ABSTRACT

Donald H. Zenger

AAPG Bulletin

... in the Williston basin. Above the basal Lander Sandstone, the unit is massive to slabby (toward top), fretted-weathering, locally vuggy to cavernous, low-insoluble...

1984

-- no title --

user

Search and Discovery.com

..., in the foothills areas, weathering, limestone outcrops, and rapid changes in elevation may cause virtually all the problems associated with the data. Here we present...

Unknown

ABSTRACT: Forming Effective Porosity in Granitoid Basement Reservoir of the Cuulong Basin; #90007 (2002)

Phan Trung Dien

Search and Discovery.com

... such as tectonic activities, weathering, hydrothermal and crystallization. The porosity of fractures and cavities caused by weathering and tectonic activities only...

Unknown

ABSTRACT: Elevated Arsenic Levels in the Weches Formation Nacogdoches County, Texas; #90021 (2003)

E. B. LEDGER, KATHY JUDY

Search and Discovery.com

... appears to decrease with higher degrees of weathering. The two least weathered samples average 122 ppm arsenic, while the two most weathered samples...

2003

-- no title --

user

Search and Discovery.com

..., in the foothills areas, weathering, limestone outcrops, and rapid changes in elevation may cause virtually all the problems associated with the data. Here we present...

Unknown

Abstract: Early Oxygen; #90172 (2014)

D. Anbar, Y. Duan, B. Kendall

Search and Discovery.com

... weathering of sulfides [4]. This presentation will review these findings, together with results emerging from research into iron, molybdenum...

2014

Diagenesis

Search and Discovery.com

N/A

Part III: Hydrogeology of the Yucatan

William Back

New Orleans Geological Society

... types of oil reservoirs owing to their initial high porosity, permeability and up-dip proximity to petroleum source beds. Another important type...

1985

Dolomite Abundance and Stratigraphic Age: Constraints on Rates and Mechanisms of Phanerozoic Dolostone Formation: PERSPECTIVES

R. Kevin Given, Bruce H. Wilkinson

Journal of Sedimentary Research (SEPM)

... calculations of potential magnesium sources also indicate that most dolomite has formed from marine or marine-derived fluids at the Earth's surface...

1987

Sedimentation and Stratigraphy of the Dakota Formation in the San Juan Basin

Guy C. Burton Jr.

Four Corners Geological Society

... or contemporanenous phenomenon. Van Hise (1904, pp. 634–635) states that by the process of carbonation of silicates in the zone of weathering, and to a smaller...

1955

Chromite Deposits of Papua New Guinea„A Future Potential Source of Chrome

P. M. Afenya

Geological Society of Malaysia (GSM)

.... Nevertheless, no corrections were made for the presence of ilmenite. The RO/R^Oj ratio for the chromite calculated from the microprobe data is 1.02...

1986

A 3-D Outcrop Perspective of an Unconventional Carbonate Mudstone Reservoir

Arthur D. Donovan, T. Scott Staerker, Aris Pramudito, Rand Gardner, Michael C. Pope, Matthew Corbett, Christopher Lowery, Andrea Micheli Romero

Unconventional Resources Technology Conference (URTEC)

..., reliability, or timeliness of any information herein. All information is the responsibility of, and, is subject to corrections by the author(s). Any person...

2013

Prospecting for Iron Ore in the Bedong Area, Kedah Using Geophysical Techniques

C. Y. Lee, I. H. Abdoul-Fatah

Geological Society of Malaysia (GSM)

... with pegmatites. The primary ore was believed to consist of both hematite and magnetite. Surface weathering converted most of the magnetite to hematite...

2002

Competition and the Quest for Offshore Leases

C. E. McMichael, R. W. Stephens

GCAGS Transactions

... of spill point, evaluation of faults as seals, and weathering corrections. Percent Closure Productive - Some evaluators might estimate area of production...

1976

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