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The AAPG/Datapages Combined Publications Database
Showing 26,129 Results. Searched 200,630 documents.
Petrologic and Geochemical Constraints on Authigenic Euhedral Quartz Crystals in Edwards Formation, Central Texas, #51009 (2014).
Xinyang Chen, Henry S. Chafetz, Thomas J. Lapen, Rasmus Andreasen
Search and Discovery.com
...Petrologic and Geochemical Constraints on Authigenic Euhedral Quartz Crystals in Edwards Formation, Central Texas, #51009 (2014). Xinyang Chen, Henry...
2014
Precambrian Geology of the Idaho Springs-Central City Area, Colorado - One-Day Field Trip via U.S. Highways 6 and 40 and Colorado Highways 119, 279, and 103
D.M. Sheridan, P.K. Sims, J.E. Harrison
Rocky Mountain Association of Geologists
..., the road cuts through the interlayered gneiss unit, which consists of biotite-quartz-plagioclase gneiss, amphibolite, lime silicate gneiss, and rare...
1960
Precambrian Rocks and Structure of the Platte Canyon and Kasslet Quadrangles, Colorado
Warren L. Peterson, Glenn R. Scott
Rocky Mountain Association of Geologists
... abundant metasedimentary rocks in the Platte Canyon and Kassler quadrangles are biotite-quartz gneiss, sillimanitic biotite-quartz gneiss, biotite...
1960
Characterization of dikes at Simpang Pulai quarry, Perak
Muhammad ’Izzat ’Irfan Ahmad Tajuddin, Teoh Ying Jia, Choong Chee Meng, Benjamin Sautter, Haylay Tsegab, Muhammad Hatta Roselee
Geological Society of Malaysia (GSM)
..., which are quartz and a coarse-grained granite dike at the study area. The presence of these dikes may affect the chemical and mechanical properties...
2022
Quantification of Brittle Deformation in Burial Compaction, Frio and Mount Simon Formation Sandstones
Astrid Makowitz, Kitty L. Milliken
Journal of Sedimentary Research (SEPM)
... of compaction in sandstones. Quartz cementation, by virtue of its impact on sandstone mechanical properties, is expected to affect the compaction progress...
2003
Diagenesis and Reservoir Quality of the Oligocene Vedder Sandstone of the Rio Bravo Oil Field, California; #20319 (2015)
Stephanie Caffee, Robert A. Horton
Search and Discovery.com
... to the left shows an authigenic overgrowth on a detrital quartz grain. The authigenic overgrowth shows euhedral crystal shape where fully developed...
2015
A Study of Fluid Inclusions at the Cikotok Gold Mine, West Java, Indonesia
Y. Noya, S. A. Wilde, S. A. Mangga, D. Sukarna
Geological Society of Malaysia (GSM)
... of which is believed to have caused the fracturing which allowed infiltration of mineralized quartz veins during the Pliocene. The host rocks...
1999
Gold- and Copper-bearing Quartz Veins Associated with Regional Devonian Extensional Deformation in Rocks on Prince of Wales Island, Southeastern Alaska - Abstract
Susan M. Karl, Paul W. Layer, Robert A. Ayuso, Peter J. Haeussler, Catherine L. Zumsteg, N. B. Shew, John F. Slack, Peter E. Bittenbender
Alaska Geological Society
...Gold- and Copper-bearing Quartz Veins Associated with Regional Devonian Extensional Deformation in Rocks on Prince of Wales Island, Southeastern...
2005
THE POHNDORF AMETHYST MINE, JEFFERSON COUNTY, MONTANA
John F. Childs, Karen W. Porter
Montana Geological Society
... amethyst crystals. Museum specimens of scepter amethyst on tourmalinated quartz have been recovered from cavities within a megacrystic...
1989
Lithogenesis and Geotectonics: The Significance of Compositional Variation in Flysch Arenites (Graywackes)
Keith A. W. Crook
Special Publications of SEPM
... groups are recognized on the basis of abundance 1 15 quartz poor graywackes quartz 1 2 SiO K OjNa O average 58 quartz intermediate graywackes Q5 15...
1974
The Flotation Phenomenon--A By-Passing and Sorting Process: NOTES
Karl H. Wolf
Journal of Sedimentary Research (SEPM)
..., Australia, transport well-sorted, angular quartz sand into the Gulf of Carpentaria by flotation. The combination of the environmental conditions causing...
1961
Undulose Extinction in Fine-grained Rocks: NOTES
Robert E. Carver
Journal of Sedimentary Research (SEPM)
... noticeable in chert but occurs, to some extent, in all fine-grained rocks; quartz in chert is used as an example in the following discussion. FALSE...
1965
Igneous Rocks from Deep Wells in West Texas: GEOLOGICAL NOTES
Leroy T. Patton
AAPG Bulletin
... and black amphibole. Microscopic: The texture of the rock is hypautomorphic-granular. The minerals are quartz, showing numerous minute inclusions...
1945
Quantitative Measurement of Brittle Deformation in Burial Compaction, Frio Formation, Gulf of Mexico Basin
Makowitz, Astrid, Milliken, Kitty
GCAGS Transactions
... 706 Vol. 52 (2002) The Oligocene Frio Formation, Gulf of Mexico Basin is used to test the relationship between brittle deformation and quartz...
2002
ABSTRACT: Gas storage in the Upper Devonian-Lower Mississippian Woodford Shale, Arbuckle Mountains, OklahomaHow Much of a Role Do the Cherts Play?; #90122 (2011)
Neil S. Fishman, Geoffrey S. Ellis, Stanley T. Paxton, Marvin M. Abbott, and Adam R. Boehlke
Search and Discovery.com
... section scales. Woodford cherts, based on quantitative X-ray diffraction (XRD), contain >85 weight (wt) % quartz, <5 wt% clays, <2 wt% potassium feldspar...
2011
Oxygen Isotope Geothermometry of Diagenetically Altered Shales
Eric V. Eslinger, Samuel M. Savin, Hsueh-Wen Yeh
Special Publications of SEPM
... fractionation between these minerals is known the temperature of equilibration can be estimated Quartz and coexisting illite or mixed layer illite...
1979
Influence of Grain Size and Temperature on Intergranular Pressure Solution, Quartz Cementation, and Porosity in a Quartzose Sandstone
David W. Houseknecht
Journal of Sedimentary Research (SEPM)
...Influence of Grain Size and Temperature on Intergranular Pressure Solution, Quartz Cementation, and Porosity in a Quartzose Sandstone David W...
1984
Pedogenic and Groundwater Silcretes at Stuart Creek Opal Field, South Australia
Medard Thiry, Anthony R. Milnes
Journal of Sedimentary Research (SEPM)
... was precipitated in residual cavities. In the middle part of the section, sedimentary clay minerals were replaced by microcrystalline quartz, while silicification...
1991
Petrology of the Spraberry Sands of West Texas
G. Frederick Warn, Raymond Sidwell
Journal of Sedimentary Research (SEPM)
... consist largely of angular to subangular quartz, mostly of igneous origin. The sands are low in porosity and permeability because of close initial...
1953
Fluid inclusions record thermal and fluid evolution in reservoir sandstones, Khatatba Formation, Western Desert, Egypt: A case for fluid injection
Carlos Rossi, Robert H. Goldstein, Andrea Ceriani, Rafaela Marfil
AAPG Bulletin
... Carlos Rossi, Robert H. Goldstein, Andrea Ceriani, Rafaela Marfil 2002 86 10 A fluid inclusion and petrographic study, focused on quartz overgrowths...
2002
Paragenesis of Diagenetic Minerals in the St. Peter Sandstone (Ordovician), Wisconsin and Illinois
I. Edgar Odom, Timothy N. Willand, Richard J. Lassin
Special Publications of SEPM
... the precipitation of K feldspar in selected pore spaces and the precipitation of quartz as a thin conformable envelope on quartz grain surfaces...
1979
Regional Diagenesis - An Important Influence in Porosity Development and Hydrocarbon Accumulations within the Hutton Sandstone, Eromanga Basin
P. M. Green, P. J. Eadington, P. J. Hamilton, D. C. Carmichael
Petroleum Exploration Society of Australia (PESA)
... techniques. Three distinct diagenetic zones were recognised according to whether dissolution, quartz overgrowth or compaction was dominant. Porosity...
1989
Formation of Silica Cement and its Replacement by Carbonates
G. D. Sharma
Journal of Sedimentary Research (SEPM)
.... The distribution of beta quartz and other metastable forms of SiO2 in nature is extensive. These forms of SiO2 are widely distributed by sedimentary processes...
1965
Feldspar Staining Methods
John R. Hayes, Michael A. Klugman
Journal of Sedimentary Research (SEPM)
... described by Gabriel and Cox, was tested for accuracy and reliability by using both artificial mixtures of quartz and feldspar, and natural sands. The sand...
1959
A Note on the Relationship of Grain Size, Clay Content, Quartz and Organic Carbon in Some Lake Erie and Lake Ontario Sediments: NOTES
R. L. Thomas
Journal of Sedimentary Research (SEPM)
...A Note on the Relationship of Grain Size, Clay Content, Quartz and Organic Carbon in Some Lake Erie and Lake Ontario Sediments: NOTES R. L. Thomas...
1969