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The AAPG/Datapages Combined Publications Database
Showing 10,864 Results. Searched 196,436 documents.
Elevated Arsenic Levels in the Weches Formation, Nacogdoches County, Texas
E. B. Ledger, Kathy Judy
GCAGS Transactions
... degrees of weathering. The two least weathered samples average 122 ppm arsenic, while the two most weathered samples average 49 ppm. The apparent...
2003
DIAGENETIC EFFECT ON RESERVOIR QUALITY OF SILICICLASTIC AND VOLCANICLASTIC SANDSTONES FROM A PALEOGENE VOLCANIC RIFTED MARGIN, EAST GREENLAND
Rikke Weibel, Henrik Vosgerau, Michael Larsen, Pierpaolo Guarnieri, Thomas Find Kokfelt, Knud Dideriksen, Tonci BaliĆ-ŽuniĆ, Brian Bell
Journal of Sedimentary Research (SEPM)
..., p. 137–156. Dessert, C., Dupre, B., Gaillardet, J., Francois, L.M., and Allegre, C.J., 2003, Basalt weathering laws and the impact of basalt...
2023
The Permian Rocky Mountain Group in Alberta
Gilbert O. Raasch
CSPG Special Publications
... 1 Chert, solid bed regolithic in part, with limonite; rusty weathering, rough surfaced. 1.7′ 2 Sandstone, dolomitic, fairly thin beds...
1956
Labile Quartz-poor Sediments from Young Mountain Ranges in Northeast Papua
Bryan P. Ruxton
Journal of Sedimentary Research (SEPM)
... about 4 percent of quartz and 1 percent opaque minerals. Of the remainder one-half is rock fragments in various stages of weathering, one-quarter...
1970
The Middle-Upper Devonian Clastic Wedge of the Franklinian Geosyncline
Ashton Embry, J. Edward Klovan
CSPG Bulletin
... of the compass was checked by taking sun shots and by measuring the known regional strike. On return from the field, the regional strike and dip were...
1976
Composition, Diagenesis, and Weathering of the Sediments and Basement of the Callabonna Sub-Basin, Central Australia: Implications for Landscape Evolution
Eric Tonui,,, Patrice De Caritat,§
Journal of Sedimentary Research (SEPM)
...Composition, Diagenesis, and Weathering of the Sediments and Basement of the Callabonna Sub-Basin, Central Australia: Implications for Landscape...
2003
Hummingbird and Whiterabbit Reef Margins (Frasnian), Alberta
A. S. Hedinger, R. H. Workum
CSPG Special Publications
... of Leduc reef building are usually distinguishable. The Cairn consists of dark brown, resistant weathering organic dolomite, while the Peechee...
1988
Stability of Index Minerals in Soils with Particular Reference to Quartz, Zircon, and Garnet
James D. Raeside
Journal of Sedimentary Research (SEPM)
... or crystalline inclusions. Some varieties of garnet are susceptible to weathering, notably those with high iron content, and both quartz and zircon...
1959
Factors Controlling the Formation of Microspar in the Bromide Formation
Mark W. Longman
Journal of Sedimentary Research (SEPM)
... of micrite to microspar occurred during outcrop weathering, but most neomorphism seems to have occurred after burial to moderate depths and after cementation...
1977
Carbonate Lake Deposits Associated With Distal Siliciclastic Perennial-River Systems
Elizabeth Gierlowski-Kordesch, David B. Finkelstein, Jessie J. Truchan Holland, Kevin D. Kallini
Journal of Sedimentary Research (SEPM)
... calcretes and gypcretes, in Wilson, R.C.L., ed., Residual Deposits: Surface Related Weathering Processes and Materials: Geological Society of London...
2013
Volumetric Relations Between Dissolved Plagioclase and Kaolinite in Sandstones: Implications for Aluminum Mass Transfer in the San Joaquin Basin, California
Michael J. Hayes, James R. Boles
Special Publications of SEPM
... Other aluminum sources and sinks are volumetrically minor in these sandstones Dissolved plagioclase and kaolinite presently appear from 600 m to depth...
1992
Fluid Flow Modeling in the Llanos Basin, Colombia
Felipe Gonzalez-Penagos, Isabelle Moretti, Xavier Guichet
AAPG Special Volumes
... of the formation waters are used to specify up to which depth the meteoric water may be found and how the upward fresh water flow due to the smectite...
2017
Hydrogeochemical controls on brackish groundwater and its suitability for use in hydraulic fracturing: The Dockum Aquifer, Midland Basin, Texas
Francisco R. Reyes, Mark A. Engle, Lixin Jin, Michael A. Jacobs, and Jasper G. Konter
Environmental Geosciences (DEG)
..., A. D., J. D. Blum, and C. P. Chamberlain, 2003, Climatic and tectonic controls on chemical weathering in the New Zealand Southern Alps: Geochimica et...
2018
Long-Range Petroleum Migration in the Illinois Basin (1)
CRAIG M. BETHKE , JACKIE D. REED , and DONALD F. OLTZ
AAPG Bulletin
.... Schmoker, 1983, High-porosity Cenozoic carbonate rocks of south Florida, progressive loss of porosity with depth: AAPG Bulletin, v. 67, p. 191-200...
1991
TAPHONOMY, GEOLOGICAL AGE, AND PALEOBIOGEOGRAPHY OF LOTOSAURUS ADENTUS (ARCHOSAURIA: POPOSAUROIDEA) FROM THE MIDDLE-UPPER TRIASSIC BADONG FORMATION, HUNAN, CHINA
CEDRIC J. HAGEN, ERIC M. ROBERTS, CORWIN SULLIVAN, JUN LIU, YANYIN WANG, PRINCE C. OWUSU AGYEMANG, XING XU
PALAIOS
..., or insect modification, and display minimal weathering. The site is reinterpreted as a pedogenically modified floodplain pond (and overlying fluvial channel...
2018
Clay Minerals as Paleoenvironmental Indicators in two Large Lakes of the African Rift Valleys: Lake Malawi and Lake Turkana
Richard F. Yuretich, Catherine J. Ervin
Special Publications of SEPM
... whereas smectite is more significant in the south Highly diagenetic product formed by reactions with lake water just above the depth of the minerals varies...
2002
Proterozoic Stream Deposits: Some Problems of Recognition and Interpretation of Ancient Sandy Fluvial Systems
Darrel G. F. Long
Dallas Geological Society
... Proterozoic continental sedimentation breaks and weathering epochs of the Russian Platform as shown by study of the Krivoy Rog district: Doklady Akad...
1977
Proterozoic Stream Deposits: Some Problems of Recognition and Interpretation of Ancient Sandy Fluvial Systems
Darrel G. F. Long
CSPG Special Publications
... Proterozoic continental sedimentation breaks and weathering epochs of the Russian Platform as shown by study of the Krivoy Rog district: Doklady Akad...
1977
Ripple Marks in Quartz Arenites of the Hurwitz Group, Northwest Territories, Canada: Evidence for Sedimentation in a Vast, Early Proterozoic, Shallow, Fresh-Water Lake
Lawrence B. Aspler , Jeffrey R. Chiarenzelli , Terry L. Bursey
Journal of Sedimentary Research (SEPM)
... rift basins: Tectonophysics, v. 94, p. 141-168. DIEM, B., 1985, Analytical method for estimating palaeowave climate and water depth from wave ripple...
1994
Paleoclimatic Significance of Widespread Proterozoic Silcretes in the Bear and Churchill Provinces of the Northwestern Canadian Shield
Gerald M. Ross , Jeffrey R. Chiarenzelli
Journal of Sedimentary Research (SEPM)
...) and, therefore, lack these features and are characterized by quartzine and silica vugh-fills. In addition, the depth of the weathering profile associated...
1985
Organic Geochemistry, Incipient Metamorphism, and Oil Generation in Black Shale Members of Phosphoria Formation, Western Interior United States
George E. Claypool, Alonza H. Love, Edwin K. Maughan
AAPG Special Volumes
... conversion to petroleum hydrocarbons at temperatures corresponding to a 2.5 to 4.5-km range of burial depth. At shallow depths, Phosphoria sedimentary...
1984
Organic Geochemistry, Incipient Metamorphism, and Oil Generation in Black Shale Members of Phosphoria Formation, Western Interior United States
George E. Claypool, Alonza H. Love, Edwin K. Maughan
AAPG Bulletin
... hydrocarbons at temperatures corresponding to a 2.5 to 4.5-km range of burial depth. At shallow depths, Phosphoria sedimentary rocks are rich in extractable...
1978
The Geology of the Samoan Islands
Barbara H. Keating
Circum Pacific Council Publications
... consid erable relief and deep weathering. Paleomagnetic studies of Savaii (Keating, 1985a) indicate that these rocks are characterized by normal polarity...
1992
Intraplate Stresses: A Tectonic Cause For Third-Order Cycles in Apparent Sea Level
Sierd Cloetingh
Special Publications of SEPM
... an erosional or weathering horizon. External tension (or equivalently, relaxation of compression) widens the basin, causes relative subsidence...
1988
Echinoderm Stabilization Associated with a Paleokarst Surface at the Mississippian-Pennsylvanian Boundary in Tennessee, U.S.A.
Kenneth J. Tobin, Steven G. Driese
Journal of Sedimentary Research (SEPM)
.... Macroscale structures include paleo-dolines (i.e., paleo-sinkholes), the largest of which has a width of approximately 30 m and a depth of 4 m. Other...
2003