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The AAPG/Datapages Combined Publications Database
Showing 25,591 Results. Searched 195,387 documents.
Size and Sphericity of Quartz Grains in Two Turbidite Formations
Gerard V. Middleton
Journal of Sedimentary Research (SEPM)
... measurements. Only quartz grains and only grains with a diameter greater than [1]/[16]th mm ( <4.0) were measured. The maximum and minimum apparent...
1962
Subsurface Geology of Wheatland Area Cleveland, McClain, Grady, Canadian, and Oklahoma Counties, Oklahoma
Mir Ahmeduddin
Oklahoma City Geological Society
... and truncation. As pointed out by Stewart (1962), these four tectonic elements are (1) the Central Oklahoma Platform, (2) the Anadarko Basin, (3...
1970
Experiments on Bed Configurations in Fine Sands Under Bidirectional Purely Oscillatory Flow, and the Origin of Hummocky Cross-Stratification
John B. Southard, John M. Lambie , Dennis C. Federico, Harold T. Pile, Christopher R. Weidman
Journal of Sedimentary Research (SEPM)
... s and velocities up to 1 m/s, with no apparent limit on size with increasing T and Um. Even in such a narrow duct there was some evidence of 3D geometry...
1990
Tectonic Significance and Hydrocarbon Trapping Consequences of Sequential Folding Synchronous with San Andreas Faulting, San Joaquin Valley, California
T. P. Harding
AAPG Bulletin
... is suggested by an apparent gradual, crestward truncation of the late Eocene Kreyenhagen Shale along the unconformity at the base of the Phacoides sand...
1976
Paleozoic Geology of Northeastern Arkansas
William M. Caplan
GCAGS Transactions
... in Paleozoic or pre-Cambrian rocks. The apparent structural configuration of the embayment floor in northeastern Arkansas is shown on Figure 1...
1954
Computer-Aided Geologic Study of Yoakum Field, Dewitt and Lavaca Counties, Texas
Stewart Chuber
South Texas Geological Society Special Publications
... Channel cuts across the north end of the northeast-trending structure to form a fold with 175 feet of compaction and truncation closure. To date...
1986
Structure of Miocene Rocks in the Sierra Madre, Northeastern Santa Barbara County, California
A. Eugene Fritsche
Pacific Section of AAPG
... and the Ozena fault are parallel, longitudinal, strike faults. In some places, these faults are located by truncation of strata or by truncation of structure...
1972
Paleontologic Studies of the Middle Tertiary Skooner Gulch and Gallaway Formations at Point Arena, California
F. Jay Phillips, Bruce Welton, Joann Welton
Pacific Section SEPM
... an apparent inconsistency between the microfossil correlation of the Gallaway Formation and the mega-invertebrate and vertebrate correlations...
1976
Developing and Extending Oil and Gas Fields Without Use of Computers, Remote Sensing, Seismic, and Non-Conventional Methods
Charles E. Mear
Houston Geological Society Bulletin
... completed from the Hunton "C" were perforated in the uppermost part of the zone above the apparent water level. The zone was acidized or lightly fractured...
1993
Stratigraphic Framework for the Eocene, South-West of Lake Maracaibo, Venezuela
Timothy J. Catlin, Enrique González Guzmán, Mariela Stredel
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... of the correlation is the apparent angular unconformity identified at the base of the Middle Eocene II sequence, 44.0my. The truncation below this event...
1994
GEOLOGY AND OIL PRODUCTION ON THE NORTHERN PORTION OF THE CEDAR CREEK ANTICLINE, DAWSON COUNTY, MONTANA
W. E. DAVIS, R. E. HUNT
Williston Basin Symposium
... and subsequent deep truncation affected the eastern block prior to the deposition of the Mississippian. Truncation on some prominent local...
1956
Paleogeologic and Quantitative Lithofacies Analysis, Simpson Group, Oklahoma
Martin W. Schramm, Jr.
AAPG Bulletin
... interest might be determined, and geologic history reconstructed), it became apparent that academic problems pertaining End_Page 1164...
1964
South Arkansas Stratigraphy with Emphasis on the Older Coastal Plain Beds
Warren B. Weeks
AAPG Bulletin
..., is completely absent within 85 miles northeast, due to pre-Gulf truncation. Also truncated at this time, were the underlying 2,250 feet of Cotton Valley...
1938
Estimating the Amount of Lateral Movement on Re-Activated Strike-Slip Faults at the Tangguh Gas Fields Implications for Reservoir Mapping and Structural Compartmentalization.
Christopher Birt, Stephen Dee, Stevy Wospakrik, Muhammad Fitriannur
Indonesian Petroleum Association
... strike-slip faults in the Eocene-Oligocene – culminating with folding, uplift and truncation at the Base Oligocene Unconformity. This Oligocene...
2017
McAllen Ranch Field: Successes in the 3-D-Based Redevelopment Program, Hidalgo County, Texas
Marilyn Taggi Cisar and R. Michael Stovall
GCAGS Transactions
... to truncation onto the glide plane. Thinning to the north, south, and east is depositionally controlled. SEISMIC ACQUISITION AND INTERPRETATION The McAllen...
1998
Mobeetie Field, Wheeler County, Texas
H. L. Sahl
Oklahoma City Geological Society
... amount of detrital carbonate, probably derived from truncation of the older Paleozoics. These rocks do not offer much in the way of reservoirs because...
1970
Madison Complex in Southeastern Saskatchewan-Southwestern Manitoba: Carboniferous
J. W. Porter
AAPG Special Volumes
... within the Madison group of southeastern Saskatchewan and southwestern Manitoba becomes apparent. HISTORY OF DEPOSITION The abrupt conformable contact...
1958
Visual Comparators for Estimating the Degree of Sorting from Plane and Thin Section: RESEARCH METHOD PAPER
Samuel Longiaru
Journal of Sedimentary Research (SEPM)
... section is problematic since a two-dimensional slice through a three-dimensional grain population alters the apparent grain-size distribution. Several...
1987
Foredeep: Middle-Late Permian Depositional Sequences, Permian Basin, West Texas and New Mexico
J. F. Sarg
AAPG Special Volumes
... conformity is defined as a surface representing a significant time gap with erosional truncation (subaerial or subaqueous) and/or subaerial exposure...
1987
Sedimentation and Structural Development of Big Horn Basin
Leonard E. Thomas
AAPG Bulletin
... in truncation of the Ordovician, Devonian, and Mississippian sediments from north to south. There is a complete absence of Silurian sediments. During...
1965
Pennsylvanian and Permian Influence on Tensleep Oil Accumulation, Big Horn Basin, Wyoming
Don E. Lawson , Jordan R. Smith
AAPG Bulletin
... surface that were later filled with basal Phosphoria impervious sediments, providing a truncation subcrop trap; and (3) a combination of (1) and (2...
1966
North Fork and Cellers Ranch Fields: "Differential Sedimentation" or Thrust-Folding?
Donald S. Stone
Wyoming Geological Association
... was delineated, but no structural reversal was apparent in the data. The discovery well at Cellers Ranch was drilled by Texaco in 1960 and completed...
1986
BASIN ANALYSIS AND EXPLORATION METHODOLOGIES FOR THE SOUTH-CENTRAL MID-CONTINENT REGION
L. E. SAFLEY, T. K. REEVES, M. SPAKIEWICZ, G. GUO, L. VOLK, S. BANERJEE, J.. JORDAN, W. JOHNSON, J. FITE, S. GEORGE
Williston Basin Symposium
... for the south-central mid-continent region: truncation and onlap traps...
1998
Elk Point Group1 Notes on a Subsurface Cross Section Extending From East Central Alberta Through Saskatchewan to Western Manitoba
H. Van Hees
CSPG Bulletin
... truncation of Silurian northwards. The Debden well has 93 feet of Interlake underlain by 212 feet of Ordovician. In the Big River No. 6 well, only 14...
1956
The need of elastic RTM for elastic FWI models
Hui Huang, Zedong Wu, Xue Xiao, Zhigang Zhang, Ping Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... imaging projects are moving from AFWI to EFWI, it is becoming apparent that we also need to upgrade acoustic RTM (ARTM) to elastic RTM (ERTM), which...
2023