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The AAPG/Datapages Combined Publications Database
Showing 2,589 Results. Searched 200,619 documents.
Induced AVO Anomalies from Pore Pressure Effects
A.C. Buginga Ramos, M.A. Santiago Toledo
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
.... The nonhydrocarbon related anomalies are indicated by a solid rectangle in the lower part of the figure. Polarity changes indicate class II AVO responses. A number...
2006
A Simple Guide to Seismic Horizon Interpretation
Gil Machado
GEO ExPro Magazine
..., after the initial quality control check of the data is made, the polarity noted and the existing wells displayed, the general steps are as follows...
2020
Elastic wave reverse-time migration with dynamic focused beams for weak anisotropic media
Ning Qin
International Meeting for Applied Geoscience and Energy (IMAGE)
... r ; t )W2s (x r ) where sgn( ) is the sign function, which is used to correct the polarity inversion issue in converted wave imaging...
2023
Tectonic Evolution of Southeast Asia
Charles S. Hutchison
Geological Society of Malaysia (GSM)
... associated with the Chiang Mai suture, equivalent to the Bentong-Raub suture zone of Peninsular Malaysia, but problems of polarity remain. Sibumasu...
2014
The Cretaceous-Tertiary Transition: Hunting Big Bend’s Most Ancient Mammals
Barbara Standhardt
West Texas Geological Society
...., 1983, Sedimentology and magnetic polarity stratigraphy of the Black Peaks Formation Big Bend National Park, Texas: Louisiana State Univ. unpub. MS thesis...
1986
Towards an Ordovician Time Scale
B. D. Webby
Pacific Section SEPM
... schemes. Also, there is an insufficient number of radiometic determinations available, the magnetic polarity record is of limited use except during two...
1995
OBN up/down-going wavefields separation in dual-tree complex wavelet domain
Zhang Libin, Wang Wei, Zou Zhen, Li Yifan, Chen Zhigang, Wang Kebin
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the geophone and omnidirectional response of the hydrophone, the ghost wavefields recorded by hydrophones and geophones show reverse polarity while up-going...
2024
Hydrocarbon Expression on Low-Impedance AVO: A Phenomenon of Amplitude Reversal
W. Waluyo
Indonesian Petroleum Association
... negative polarity for a simulated gas-bearing sandstone to low negative polarity and close to zero for a saturated water sandstone. Finally, Model 4...
2002
Magnetic Stratigraphy and Tectonic Rotation of the Oligocene Alsea, Yaquina, and Nye Formations, Lincoln County, Oregon
Donald R. Prothero, Clio Z. Bitboul, George W. Moore, Alan R. Niem
Pacific Section SEPM
... overprint that was removed by 300°C, but generally the polarity intepretation was clear on most samples. In addition, the remanence virtually vanished...
2001
Amplitude Versus Offset Gradient Modeling Over a Minnelusa Field
W.E. Johnson
Rocky Mountain Association of Geologists
... Mountain Association of Geologists ROCKY MOUNTAIN ASSOClATlON OF GEOLOGISTS AMPLITUDE VS OFFSET GRADIENT MODELING 67 NORMAL POLARITY TRACES NORMAL...
1988
Importance of Palaeomagnetic data for Devonian Stratigraphy and Palaeogeography in the USSR
A. N. Khramov
CSPG Special Publications
... sections of the USSR are of interregional stratigraphic importance and depend on comparatively short-term epochs of the recent polarity of the geomagnetic...
1967
Introduction to the Neogene
Noël Vandenberghe, Jan Hardenbol
Special Publications of SEPM
... C5 9.74 C4A 8.70 C4 C3B 7.43 6.94 C3A 5.89 C3 4.18 C2A 2.58 C2 1.77 C1 POLARITY CHONOZONES POLARITY Cande and Kent, 1992, 1995...
1998
The Characteristics of Kasiro Shale and Its Implication to Oil Shale Identification at The Batang Asai, Sarolangun, Jambi
Abizar Rachman, Atep Beni, Hana Nur, Hanif Abiyuza, H. W. Utama
Indonesian Petroleum Association
... Polarity Shows) whitegrayish color and on cross polarity shows gray-blackish color with relief-pleochroism, crystal shape and no cleavage, Clay (J8...
2021
Test of Nature and Extent of Continental Drift as Provided by Study of Proterozoic Dike Swarms of Canadian Shield: Evolution of Arctic Ocean Basin
W. F. Fahrig , E. Irving , G. D. Jackson
AAPG Special Volumes
..., the geomagnetic field for the western and central Canadian shield had a characteristic direction defined by pole 5 (Fig. 3); there were no polarity...
1973
"Wheeler Diagrams": A Useful Exploration Tool in the Gulf of Mexico
Ramon H. Trevino, L. Frank Brown Jr., Robert G. Loucks, Ursula Hammes
GCAGS Transactions
.... Cande, S.C., and D.V. Kent, 1995, Revised calibration of the geomagnetic polarity timescale for the Late Cretaceous and Cenozoic: Journal of Geophysical...
2005
Abstract: Processing 3-C Heavy Oil Data for Shallow Shear-wave Splitting Properties; #90174 (2014)
Richard Bale, Tobin Marchand, Keith Wilkinson, Kurt Wikel, and Robert Kendall
Search and Discovery.com
... the time-delay between S1 and S2. Typically the transverse component is used to estimate the orientation, based on the azimuthal position of polarity...
2014
Abstract: Shear Wave Splitting Parameter Estimation Using a Regular Distribution of Azimuths; #90187 (2014)
A. Stanton and M. D. Sacchi
Search and Discovery.com
... the transverse component displays polarity flips corresponding to the isotropy and symmetry planes. Two parameters can be used to describe shear wave splitting...
2014
Abstracts: Seismic Anisotropy of the Marcellus Shale: Feasibility Study for Fracture Characterization; #90173 (2015)
James Gaiser, Alvaro Chaveste, Mary Edrich, Tony Rebec, and Richard Verm
Search and Discovery.com
... at the polarity reversals (Figure 1b). This is where there is only one PS-wave, in the fast or slow direction. Numerous CAG analyses indicate 3% to 5...
2015
Fracture Identification with Seismic Data, XinChang Field, China, by Peter Stewart, John Tinnin, James Hallin, and Jim Granath, #40370 (2008).
Search and Discovery.com
2008
Astrochronology of the Cenozoic Era: A Critical Review, #40443 (2009)
Linda A. Hinnov and James Ogg
Search and Discovery.com
...-resolution Ca/Fe chalk-rich series was tuned to ETP series with precession index reversed (to mimic Northern summer polarity). [15 of 18 ] Pälike...
2009
Study of Hydrocarbon Detection Methods in Offshore Deepwater Sediments, Gulf of Guinea; #40999 (2012)
Guoping Zuo, Lv Fuliang, Guozhang Fan, and Dali Shao
Search and Discovery.com
... offset stack. Type 2 represents reverse polarity, amplitude changes from positive to negative or from negative to positive. Thus, the comparison...
2012
Fundamentals of 3D Seismic Volume Imaging; #120169 (2014)
Gerald D. Kidd
Search and Discovery.com
... visualization objective. The opposite polarity is colored green to white; although not fully discussed in this paper, these amplitudes would be imaged...
2014
Hydrocarbon Type Discrimination Using AVO analysis, Sama Field, WDDM, Nile Delta, Egypt, #20335 (2015).
Mahmoud M. Hemdan, Mostafa El-Sadek, Islam Yehia, Ahmed Hosny, Islam Ali
Search and Discovery.com
... Polarity Intercept Reverse Polarity Actual AVO response is different from theoretical one, so conditioning is required Data Conditioning Burullus...
2015
Seamount Age Estimates from Paleomagnetism and Their Implications for the History of Volcanism on the Pacific Plate
William W. Sager
Circum Pacific Council Publications
... representative magnetic reversal isochrons and their ages from geomagnetic polarity timescale of Harland et al. (1982) 23 SAGER Kana Keoki (Hawaii Institute...
1992
Paleomagnetism in the Western Canada Sedimentary Basin: Dating Fluid Flow and Deformation Events
D.T.A. Symons,,, R.J. Enkin, M.T. Cioppa
CSPG Bulletin
..., Symposium on Structural Geology of Canadian Ore Deposits, p. 231-237. Cande, S.C. and Kent, D.V. 1995. Revised calibration of the geomagnetic polarity...
1999