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The AAPG/Datapages Combined Publications Database
Showing 714 Results. Searched 200,691 documents.
Miocene Carbonates of the Luconia Province, Offshore Sarawak: Implications for Regional Geology and Reservoir Properties from Strontium-Isotope Stratigraphy
Volker C. Vahrenkamp
Geological Society of Malaysia (GSM)
... during several consecutive third order sequences it may also just be an artifact derived from the sinusoidal shape ofthe Sr-isotope age curve. However...
1998
Origin of Remanent Magnetization in Dolomite from the Monterey Formation
J. Scott Hornafius
Pacific Section SEPM
..., unconsolidated sediment, which was subsequently impregnated with carbonate cement. Slumping produced sinusoidal folds (amplitude = 10 cm) with planed-off...
1984
Efficient Completions in Anisotropic Shale Gas Formations
Saied Mighani, Carl Sondergeld, Chandra Rai
Unconventional Resources Technology Conference (URTEC)
... there is a weak sinusoidal velocity variation 5 URTeC 1934272 around the sample. This indicates a probable weak orthorhombic anisotropy resulting from the clay...
2014
Laramide Basement Deformation in the Bighorn Basin — The Controlling Factor for Structures in the Layered Rocks
D. W. Stearns
Wyoming Geological Association
... attenuation, and (3) sinusoidal vertical and shearing forces acting on the bottom of a block. The latter equations provide solutions for differential vertical...
1975
The Marble Falls Fractured Resource Play: Unconventional Technology Turns an Old Trend Into the Next Big Play
Ulysses Hargrove, Craig Adams, Beau D. Berend, Mike Grace, Mike Mullen
Unconventional Resources Technology Conference (URTEC)
... to apertures. Megascopic fractures that are observed to cross multiple mechanical or lithological boundaries are nearly vertical and exhibit sinusoidal...
2015
Mapping Stratigraphic Traps with Electrical Transients
Jamil Azad
CSPG Bulletin
... used in the method of electrical transients is illustrated in Figure 1. A Fourier analysis shows that it is decomposable into a family of sinusoidal...
1977
Characteristics of Two, Pennsylvanian-Age, Semidiurnal Tidal Deposits in the Illinois Basin, U.S.A.
Erik P. Kvale, Allen W. Archer
CSPG Special Publications
... thickening and thinning (Fig. 8). When sequential laminae are numbered and their thicknesses plotted on a histogram, a series of sinusoidal curves...
1991
In Situ Stress Prediction Using Differential Strain Analysis and Ultrasonic Shear-Wave Splitting
B. Widarsono, J. R. Marsden, M. S. King
Indonesian Petroleum Association
... in signal quality, and oscilloscope resolution. In general, the velocities plotted against rotational angle result in sinusoidal patterns, indicating...
1996
Tidal-influenced shoreline interpretation of Miocene Tanjong Formation in Imbak Canyon, Sabah, Malaysia
Khor Wei Chung, Junaidi Asis, Sanudin Tahir, Baba Musta, Kawi Bidin, Rezal Rahmat, Hadianshah Saleh
Geological Society of Malaysia (GSM)
...owed mudstones. The Flaser Facies (FF) is defined with sandstone-dominated beds with sinusoidal wavy bedding. Sandstone beds in Hummocky Cross-Stratified Fa...
2024
Exploration and Production Scale Lateral Variability in Phylloid Algal Mound and Associated Reservoir Facies, Paradox Basin, SE Utah
G. Michael Grammar, Gregor P. Eberli
West Texas Geological Society
... by the near sinusoidal distribution of algal mounds in outcrop (Figure 4). Summary and Implications to Hydrocarbon Exploration In this study, we...
1998
Sedimentology of Middle Precambrian Animikean Quartzites, Florence County, Wisconsin
Tor H. Nilsen
Journal of Sedimentary Research (SEPM)
..., numerous straight, convex, and sinusoidal forms are found also. The maximum amplitude measured was 4 feet, with the thickness of individual cross-strata...
1965
Supratidal Dolomitization and Dedolomitization in Jurassic Rocks of Hamakhtesh Haqatan, Israel
Moshe Goldberg
Journal of Sedimentary Research (SEPM)
... of sinusoidal outline (fig. 2) (see also Gill, 1966). The petrographic evidence indicates that dolomitization was diagenetic and that in the transition zone...
1967
Pitfalls in Marine Heat Flow Probe Data Acquisition and Interpretations: Examples from the Gulf of Mexico
Seiichi Nagihara
GCAGS Transactions
... and Schubert, 1982). For simplicity, fluctuation of seafloor temperature is assumed to be purely sinusoidal with 0.12 K difference between summer and winter...
2006
Statistical Analysis of Estimated Ultimate Recovery: Comparing Machine Learning and Traditional DCA Methods in the Eagle Ford and Bakken
Palash Panja, Carlos Vega-Ortiz, Milind Deo, Brian McPherson, Rasoul Sorkhabi
Unconventional Resources Technology Conference (URTEC)
..., such as those exhibiting oscillatory or sinusoidal patterns. Despite the innovations these newer models bring to the field of reservoir engineering, they too...
2024
Development of Soil on the Lunar Surface
John F. Lindsay
Journal of Sedimentary Research (SEPM)
... distinct types of glass particles and superimposes a more complex sinusoidal pattern upon the distribution as the soil matures such that the mean sphericity...
1972
Geocentric Sectoring of LWD Azimuthal Log Data for Improved RDIP and RSTRIKE Analysis: Enhanced Reservoir Navigation and Petrophysical Characterization
James J. Willis, Lauren A. Martz
GCAGS Transactions
... from the position of the inflection points on the (co)sinusoidal curve (Fig. 1). Importantly, azimuthal log measurements in the RSTRIKE direction...
2017
Mass Balance and Thrusting in Detachment Folds
John Suppe
AAPG Special Volumes
... a sinusoidal fold shape. The essential behavior of such models for our purpose is insensitive to the details of the fold shape. Wiltschko and Chapple pointed...
2011
Medano Creek, Colorado, a Model for Upper-Flow-Regime Fluvial Deposition
Richard Langford, Bryan Bracken
Journal of Sedimentary Research (SEPM)
... that "sinusoidal" (trochoidal), two-dimensional antidune forms always migrate upstream during growth. This type of antidune is the most commonly recognized...
1987
Storm-dominated Sedimentation on the Inner Shelf of the Canadian Beaufort Sea
Philip R. Hill , Odette C. Nadeau
Journal of Sedimentary Research (SEPM)
... are significantly attenuated without breaking, but in the same area, where waves traveled across "consolidated clay," the waves "are more sinusoidal and break...
1989
On the Labeling, Length, and Objective Basis of Fischer Plots
P. M. Sadler, D. A. Osleger, I. P. Montanez
Journal of Sedimentary Research (SEPM)
.... The sum of several sinusoidal components with different periods and amplitudes is one such model; properly tuned, it might mimic global eustatic...
1993
Changes in Rate of Transgression Across the Permian White Rim Sandstone, Southern Utah
Diane L. Kamola , Jacqueline E. Huntoon
Journal of Sedimentary Research (SEPM)
... change with time. While an essentially sinusoidal variation in sea level is assumed for sequence-stratigraphic models (Posamentier et al. 1988; Jervey...
1994
Formalizing Geological Knowledge--With an Example of Modeling Stratigraphy Using Fuzzy Logic
Ulf Nordlund
Journal of Sedimentary Research (SEPM)
... data for the simulation were as follows: (1) A sinusoidal sea-level curve with an amplitude of 30 m and a cycle length of 20,000 yr. (2) A tectonic...
1996
Principles of Regression and Transgression: The Nature of the Interplay Between Accommodation and Sediment Supply: PERSPECTIVES
Tetsuji Muto , Ron J. Steel
Journal of Sedimentary Research (SEPM)
... of an assumed, sinusoidal eustatic curve (Posamentier et al. 1988; see also Helland-Hansen and Gjelberg 1994; Hunt and Tucker 1995). In terms...
1997
Shoreline Autoretreat Substantiated in Flume Experiments
Tetsuji Muto
Journal of Sedimentary Research (SEPM)
... model has highlighted the correlation of individual systems tracts to specific segments of a sinusoidal eustatic sea-level curve. The regime model...
2001
Carbonate Facies and Sedimentation of Patch Reefs off Bermuda
Clifton F. Jordan, Jr.
AAPG Bulletin
...) sinusoidal relation between size and sorting. Generally, Bermudan reef sediments with best and poorest sorting values are 2-3 phi units coarser in mean size...
1973