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The AAPG/Datapages Combined Publications Database
Showing 432 Results. Searched 200,626 documents.
Heartburn in Predicting Natural Fractures: The Effects of Differential Fracture Susceptibility in Heterogeneous Lithologies
John C. Lorenz
Rocky Mountain Association of Geologists
... there is a plus-or-minus 15 degree variability in average fracture strike from bed to bed. O n top of this, the strike of an individual fracture also...
1997
A Potential-Field Interpretation of the Structural Edge of the Cretaceous Hornbrook Basin in Northern California
M. C. Erskine Jr., J. A. Wolleben, D. L. Lawler
Pacific Section SEPM
.... The individual data points are probably plus or minus 2 milligal overall accuracy. The aeromagnetic data were acquired during the summer of 1980 (Couch...
1984
Seismic Stratigraphy — Lodgepole Play Examples
John A. Andrew
Montana Geological Society
... frequencies shown plus or minus 1/4 octave. The resulting bandwidth and thin-bed resolution are as indicated. Traces were calculated...
1996
Fluvial Paleochannels
S. A. Schumm
Special Publications of SEPM
... of change of each variable is indicated by a plus or minus exponent channel mor phology will be affected as follows l 70 s 3 d of age width...
1972
Upper Cretaceous Conglomerates from the Salinian Terrane, West-Central California
Karen Grove
Pacific Section SEPM
... plus or minus several 100 km of Neogene motion on faults outboard of the San Andreas or Paleogene motion on a "proto-San Andreas fault" to restore...
1989
Regional Geology of the Grand Banks
Amoco Canada Petroleum Company Ltd., Imperial Oil Limited
CSPG Bulletin
... Shoals. The only basement rock that has been age-dated offshore is the Flemish Cap granodiorite, which is 592 million years, plus or minus 20 million...
1973
Stratigraphic Analysis of the Main Member of the Upper Cibulakan Formation at E Field, Offshore Northwest Java, Indonesia
Henry W. Posamentier, Wayne Suyenaga, Diah Rufaida, Robert Meyrick, S. George Pemberton
Indonesian Petroleum Association
... be subdivided into "classes" or "families". For this analysis a seismic volume was defined plus and minus 30 msec and restricted in areal distribution...
1998
CENOZOIC TECTONIC HISTORY OF THE GREAT PLAINS CONTRASTED WITH THAT OF THE SOUTHERN ROCKY MOUNTAINS: A SYNTHESIS
Donald E. Trimble
Rocky Mountain Association of Geologists
... the Dawson Arkose (Scott and Wobus, 1973). The 120-150 m (400 to 500 ft) of Laramie required 2,600 m (8,500 ft) plus or minus of uplift of the Front Range...
1980
Sediments of Buzzards Bay, Massachusetts
J. L. Hough
Journal of Sedimentary Research (SEPM)
... logs of skewness not exceeding plus or minus FIG. 3. Graph of median diameter plotted against sorting factor. FIG. 4. Graph of median diameter...
1940
Sea-Level Controls on the Facies Architecture of the Trinity/Sabine Incised-Valley System, Texas Continental Shelf
Mark A. Thomas, John B. Anderson
Special Publications of SEPM
... and thermal printers recorded the data. Navigation was accomplished with Loran C and SatNav instruments; accuracy of shot-point locations is plus or minus...
1994
Shannon Sandstone, Salt Creek Area, Wyoming
Roderick W. Tillman
Wyoming Geological Association
... facies. By using a hand-held comparator and a hand lens grain sizes may be estimated, after some practice, with an accuracy of plus or minus 25...
1997
Third Day Road Log - Craig to Juniper Mountain, Colorado - and Exit Log
N.W. Bass, Richard Upton, John W. Rold, et.al.
Rocky Mountain Association of Geologists
... in hlancos sh. (Cret.). 28.9 The brown ss. ledge 250 feet plus or minus above the road on north side is one of two such sss. in upper part of Mancos...
1958
Pennsylvanian Section at Juniper Mountain, Moffat County, Colorado
R.A. Upton
Rocky Mountain Association of Geologists
... of carbonates that haye a cumulative thickness of 630 plus or minus feet. A limestone that is described as very or extremely fossiliferous actually contains less...
1958
Textural Characteristics of Shale Deformations, and Associated Distribution Models: Implications for Shale Reservoir Fluid Flow
Jim Buckman, Gary Couples, Helen Lewis
Unconventional Resources Technology Conference (URTEC)
... of local shear strain, plus or minus volumetric dilations or compactions. Numerical simulations of the experiments, which involve an enforced shear...
2019
Origin of the Oil and Gas Reservoirs of the Eastern Interior Coal Basin in Relation to the Accumulation of Oil and Gas: Part IV. Relations of Petroleum Accumulation to Structure
Alfred H. Bell
AAPG Special Volumes
... correct to within plus or minus 5 per cent. The productive acreage in Crawford, Lawrence and Wabash counties was estimated by planimeter measurements...
1934
Pennsylvanian and Permian Influence on Tensleep Oil Accumulation, Big Horn Basin, Wyoming
Don E. Lawson , Jordan R. Smith
AAPG Bulletin
... of the Big Horn basin. This is strikingly emphasized when one considers that only 30 (plus or minus) wells have penetrated the Tensleep at depths...
1966
Regional Geology of Grand Banks
Amoco Canada Petroleum Company Ltd., Imperial Oil Limited, Offshore Exploration Staffs
AAPG Bulletin
..., plus or minus 20 m.y., or late Proterozoic to Cambrian in age (Pelletier, 1971). This location is approximately 230 mi (370 km) east of the Murre...
1974
Space, Things, Time, and Events--An Essay on Stratigraphy
Horacio J. Harrington
AAPG Bulletin
... of phys cal time, even if by means of radiometric methods we can determine the "absolute age" (with a rather large "plus or minus" error) of a few widely...
1965
MIDDLE TO UPPER DEVONIAN SKELETAL CONCENTRATIONS FROM CARBONATE-DOMINATED SETTINGS OF NORTH AMERICA: INVESTIGATING THE EFFECTS OF BIOCLAST INPUT AND BURIAL RATES ACROSS MULTIPLE TEMPORAL AND SPATIAL SCALES
MARA BRADY
PALAIOS
... destruction) and burial (sedimentation accumulation plus or minus vertical reworking by bioturbation and storms) that creates a bioclast-rich accumulation...
2016
Depositional Structures and Processes in the Non-barred High-energy Nearshore
H. Edward Clifton, Ralph E. Hunter, R. Lawrence Phillips
Journal of Sedimentary Research (SEPM)
... measurement, the actual errors as found by repeated measurements to a fixed station about 800 feet offshore from the shore station were less than plus or minus...
1971
Pasca-Pandora Reef Exploration in the Gulf of Papua
E. F. Durkee
Papua New Guinea (PNG) Petroleum Convention Proceedings
... um of three, plus or minus, trillion cubic feet of dry gas at Pandora ‘A’ reef. The Pandora 1-X well flowed at a rate of 57 M M SCFG/d, the m aximum...
1990
Modification of Pore Geometry and Petrophysical Characteristics of the Upper Jurassic Smackover Formation Thrombolite Reservoirs after Dolomitization
Sandra Nélis Tonietto, Michael C. Pope
GCAGS Journal
... in each thin section varied from 1000 to 20,000. Vertical bars are means, wide horizontal bars are plus/minus one standard deviation, and narrow...
2016
Glacial-Eustatic Sea-Level Fluctuation Curve for Carboniferous-Permian Boundary Strata based on Outcrops in the North American Midcontinent and North-Central Texas*
Darwin R. Boardman II and Merlynd K. Nestell
Fort Worth Geological Society
... maximum for the shelfal black shales. Crowley and Baum (1991) proposed that 60 m plus or minus 15 m was the amount of sea-level change under the most...
1993
Characterization and Origin of Brines from the Bakken-Three Forks Petroleum System in the Williston Basin, USA
Zell Peterman, Kiyoto Futa, Joanna Thamke, Thomas Oliver
Rocky Mountain Association of Geologists
... using ion chromatography and inductively coupled plasma mass spectrometry. Concentration measurements are typically precise and accurate to plus...
2017
Unitisation of the SE Gobe Field: The First Unitisation in PNG and the Lessons Learned
R. G. Marcellus
Papua New Guinea (PNG) Petroleum Convention Proceedings
... participation (plus/minus five percent) would be adequate for then-present purposes, ie. allocating initial project development capital. During...
1996