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The AAPG/Datapages Combined Publications Database
Showing 389 Results. Searched 200,357 documents.
Distribution of Surface Pebbles with Changes in Wave Energy on a Sandy Estuarine Beach
Karl F. Nordstrom , Nancy L. Jackson
Journal of Sedimentary Research (SEPM)
... without regard to longshore position, because the focus of this study is on distribution of surface pebbles related to cross-shore position. Recovered...
1993
Porosity Enhancement from Chert Dissolution Beneath Neocomian Unconformity: Ivishak Formation, North Slope, Alaska
G. Shanmugam , J. B. Higgins
AAPG Bulletin
...) and related near-surface weathering processes. Subsurface samples from both onshore and offshore wells in the Alaskan North Slope were used in this study...
1988
Fractures in sandstone reservoirs with ultra-low permeability: A case study of the Upper Triassic Yanchang Formation in the Ordos Basin, China
Zeng Lianbo, Li Xiang-Yang
AAPG Bulletin
... in such reservoirs are jointed fractures, but fault-related fractures are not developed there.Figure 5. (a) Photo of a tectonic fracture surface in core...
2009
Carbonate rocks: Matrix permeability estimation
Alejandro Cardona, and J. Carlos Santamarina
AAPG Bulletin
..., predicted permeabilities are lower-bound estimates of the formation permeability. Figure 5. Models to estimate the surface-related pore size Dsur...
2020
Tectonic Influences on Petroleum Migration and Speleogenesis in the Guadalupe Mountains, New Mexico and Texas; #120139 (2013)
Harvey R. DuChene
Search and Discovery.com
... Presenter’s notes: Speleogenesis is the process of cave formation. Most caves are epigenic, formed by near-surface processes related to the movement...
2013
Stratigraphy of the Lower Cretaceous (Albian) Salmon Peak Formation of the Maverick Basin, South Texas
Curtis H. Humphreys
South Texas Geological Society Special Publications
... Cretaceous (Albian) Salmon Peak Formation of the Maverick basin is divided into surface-near surface and subsurface occurrences separated by a transition...
1984
Relationship of Two Widespread Guadalupian Subsurface Marker Units (Bowers Sand and Two Finger Limestone) to Outcrop-Defined Sequences in the Guadalupe Mountains, New Mexico and West Texas
Willis W. Tyrrell, John A. Diemer
West Texas Geological Society
... sand bed in the Bowers Sand is interpreted to be a bypass surface related to sea level lowstand. Generally the overlying siliciclastics...
2003
The Triassic Juruá Orogeny and the Tectono-Sedimentary Evolution of Peruvian Oriente Basin. Exploratory Implications
Mozart Cavalcante de Barros, Enio de Paula Carneiro
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... surface related to the epeirogenetic effects of the Caledonian / Taconian Orogeny. In the Acre basin, seismic data suggest the presence...
1991
The Great Salt Lake - an Overview
Robert E. Cohenour
Utah Geological Association
... (101.6 cm/yr). The evaporation rate from the lake surface is related to the salinity of the surface water. If the lake surface is near 4196 feet...
1987
Very Different Crustal Response to Extreme Extension in the Southern Basin and Range and Colorado Plateau Transition
Tom Parsons, Jill McCarthy, George A. Thompson
Pacific Section of AAPG
... lineation, implying that folding of the detachment surface was related to extension (Spencer and Reynolds, 1991). The low-angle fault is cut by a later...
2001
The Impact of Pore Size and Kerogen Maturity on the Behavior of Water in Organic Kerogen Nanopores in Shales
Yinan Hu, Deepak Devegowda, Richard F. Sigal
Unconventional Resources Technology Conference (URTEC)
...e for the kerogen pores of Figures 4 and 5. This is related to surface roughness, and perhaps also to the carbon density in the pore walls. Not...
2015
Uranium in Canada
R. H. McMillan
CSPG Bulletin
... environment, or sorbing on other minerals. Because hydrogenic uranium deposits are solubility controlled and related to the continental surface...
1977
Current Views on the Deposition and Sequence Stratigraphy of the Great Valley Group, Sacramento Basin
Thomas A. Williams
Pacific Section SEPM
... surface is related to a widespread shallow-marine or nonmarine erosional surface present in outcrops of the 'Redding Formation' at the northern end...
1993
Landward Transport of Bottom Sediments in Estuaries of the Atlantic Coastal Plain
Robert H. Meade
Journal of Sedimentary Research (SEPM)
..., is illusory. The variations in suspended matter near the surface are related to the presence of a maximum concentration at the transition between fresh...
1969
Paleosols and Tidal-flat/Lagoon Sequences on a Carboniferous Carbonate Shelf: Sedimentary Associations of Triple Disconformities
Robert Riding, V. Paul Wright
Journal of Sedimentary Research (SEPM)
... surface within the sequence (Swift 1968). The upper erosion surface, related to shoreface migration, has been called a "ravinement" by Stamp (1922...
1981
Pedogenic and Groundwater Silcretes at Stuart Creek Opal Field, South Australia
Medard Thiry, Anthony R. Milnes
Journal of Sedimentary Research (SEPM)
..., 1983, Geochemistry of weathering profile silcretes, southern Cape Province, South Africa: in Wilson, R. C. L., ed., Residual Deposits: Surface Related...
1991
Fourier and Autocorrelation Analysis of Estuarine Tidal Rhythmites, Lower Breathitt Formation (Pennsylvanian), Eastern Kentucky, USA
Ronald L. Martino, Dewey D. Sanderson
Journal of Sedimentary Research (SEPM)
... paleovalleys with considerable relief. This eroded surface was onlapped by Breathitt and Lee strata during the Early and Middle Pennsylvanian. The Ear y...
1993
Geochemical Mass-Balance and Oxygen-Isotope Constraints on Silcrete Formation and Its Paleoclimatic Implications in Southern Australia
John A. Webb , Suzanne D. Golding
Journal of Sedimentary Research (SEPM)
.... 71, p. 6107-6118. MCFARLANE, M.J., AND BOWDEN, D.J., 1992, Mobilization of aluminium in the weathering profiles of the African surface in Malawi...
1998
Evolution of the Coastal Depositional Systems of the Changjiang (Yangtze) River in Response to Late Pleistocene-Holocene Sea-Level Changes
Kazuaki Hori, Yoshiki Saito, Quanhong Zhao, Pinxian Wang
Journal of Sedimentary Research (SEPM)
... of "zigzag" changes of the shoreline. Each parasequence formed during the period of standstill, and its boundary (i.e., marine flooding surface...
2002
Mapping of salt structures and related fault lineaments based on remote-sensing and gravimetric data: The case of the Monte Real salt wall (onshore west-central Portugal)
Fernando Carlos Lopes, Alcides Jose Pereira, Vasco Manuel Mantas
AAPG Bulletin
..., 1982).Surface geologic studies of salt bodies and related tectonic features are not easy. The direct observation of salt rock is commonly hampered...
2012
Aragonite–Calcite Speleothems: Identifying Original and Diagenetic Features
Christine Perrin, Laurent Prestimonaco, Guilhem Servelle, Romain Tilhac, Marion Maury, Patrick Cabrol
Journal of Sedimentary Research (SEPM)
... from change of crystallization (blue line); CCp, primary columnar calcite; A, aragonite; polarized light, crossed nicols. Growth Surface Related...
2014
Taphonomic Analysis of the Lower Pleistocene Pirro Nord Fossil Locality (Pirro 10 Site, Puglia, Southern Italy): A Depositional Model for Vertebrate Assemblages in a Karstic Environment
Marta Zunino, Marco Pavia, Sixto R. Fernández-López, Giulio Pavia
PALAIOS
... is indicative of short-term exposure on the cave surface related to rapid and complete burial. The differences in weathering stages recorded on the upper...
2012
Root Calcretes and Uranium-Bearing Silcretes at Sedimentary Discontinuities In the Miocene of the Madrid Basin (Toledo, Spain)
M. Ángeles Bustillo, Chloé Plet, Ana M. Alonso-Zarza
Journal of Sedimentary Research (SEPM)
... of weathering profile silcretes, southern Cape Province, South Africa, in Wilson, R.C.L., ed., Residual Deposits: Surface and Related Weathering Processes...
2013
Wettability, Oil and Rock Characterization of the Most Important Unconventional Liquid Reservoirs in the United States and the Impact on Oil Recovery
J. O. Alvarez, D. S. Schechter
Unconventional Resources Technology Conference (URTEC)
...s related to rock affinity for water. Surface charge at the rock-fluid interface can be related to the electrical potential on the double layer which i...
2016
Allostratigraphic Subdivision of the Upper Cretaceous Dunvegan, Shaftesbury, and Kaskapau Formations in the Northwestern Alberta Subsurface
Janok Bhattacharya,, Roger G. Walker
CSPG Bulletin
... and may represent a subaerial exposure surface related to the possible E1 sequence boundary (i.e., RSE) referred to above. Allomember E consists mainly...
1991