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The AAPG/Datapages Combined Publications Database
Showing 2,589 Results. Searched 200,626 documents.
Biochronology
W. A. Berggren , J. A. Van Couvering
AAPG Special Volumes
..., 1974, Paleomagnetic polarity sequence and radiolarian zones, Brunhes to polarity epoch 20: Earth and Planetary Sci. Letters, v. 22, p. 307-319...
1978
Lower Miocene-Early Pliocene Deposystems in the Gulf of Mexico: Regional Sequence Relationships
Richard H. Fillon, Paul N. Lawless
GCAGS Transactions
... magnetic polarity timescale for the Cretaceous and Cenozoic: Geology, v. 5, p. 330-335. Lawless, P.N., R.H. Fillon, and R.G. Litton, III, 1997, Gulf...
2000
Continuous Sea-Floor Spreading in Red Sea: An Alternative Interpretation of Magnetic Anomaly Pattern
J. L. Labrecque , N. Zitellini
AAPG Bulletin
..., p. 227-235. Blakely, R. J., and A. Cox, 1972, Evidence for short geomagnetic polarity intervals in the early Cenozoic: Journal of Geophysical...
1985
Seismic Model of a Progradational Carbonate Platform, Picco di Vallandro, the Dolomites, Northern Italy (1)
KEVIN T. BIDDLE , WOLFGANG SCHLAGER , KURT W. RUDOLPH , and TERRY L. BUSH
AAPG Bulletin
... section of Figure 5. For the sake of comparison, the same model is plotted on the lithologic cross section in the opposite polarity (Figure 11...
1992
The Newporte Structure: a Petroliferous, Subsurface Impact Crater, Renville County, North Dakota
Timothy R. Gerlach, Neil L. Anderson, Nels F. Forsman
Williston Basin Symposium
... log can properly transform horizon depths into two-way time (vertical seismic scale). An interpreted, normal-polarity...
1995
3D Rift Fault Systems of the Western Otway Basin, SE Australia
S. Chantraprasert, K. R. McClay, C. Elders
Petroleum Exploration Society of Australia (PESA)
... faults (Figure 1). Although the dominant trend of the faults is NW-SE, in areas where the fault dip polarity changes more E-W fault trends are found (cf...
2001
THE FREEMONT FIELD: AN EXPLORATION MODEL FOR THE LLOYDMINSTER AREA
N.E. Dunning , H.J. Henley, and A.G. Lange
Saskatchewan Geological Society
... at approximately 525 ms. on the seismic profile. Fig. 10 - Seismic profile line #1 - Reverse Polarity - 1200% (approximate time locations of the Mannville...
1980
The Geophysicist Communicating with Seismic Processing
R. E. Sheriff
Southeast Asia Petroleum Exploration Society (SEAPEX)
..., (2) instantaneous phase, (3) instantaneous frequency or a smoothed weighted version of instantaneous frequency, (4) apparent polarity and (5...
1980
Ochoa as a Lithostratigraphic Unit, Not a Chronostratigraphic Unit of the Permian
Spencer G. Lucas, Orin J. Anderson
West Texas Geological Society
... dates and geomagnetic-polarity data with which to correlate. Given that much of the Ochoan section is anhydrite/gypsum or halite, lack of these data...
1997
VSP Guided Reprocessing and Inversion of Surface Seismic Data
R. Gir, Dominique Pajot, Serge Des Ligneris
Southeast Asia Petroleum Exploration Society (SEAPEX)
... that even though the automatic tracking of GTS ignores faults, a change of amplitude/polarity of a seismic event serves as a useful diagnostic for gross...
1988
Advances in Geophysical Techniques for the Detection of Drilling Hazards and Their Application to Seismic Exploration
D. C. N. Pratt, Tong Pow Mun
Southeast Asia Petroleum Exploration Society (SEAPEX)
... stack display is that, as pointed out by Rutherford and Williams, 1989, some gas sands may display change in amplitude polarity with offset. Therefore...
1990
Time-lapse crosswell seismic monitoring of CO2 injection at the Nagaoka CCS site using elastic full-waveform inversion
Rie Nakata, Nori Nakata, Aaron Girard, Masaru Ichikawa, Ayato Kato, David Lumley, Zique Xue
International Meeting for Applied Geoscience and Energy (IMAGE)
... arrivals (Figure 2). We observe that the polarity of the P-waves changes with respect to the angle between the sources and the receivers, which indicates...
2022
Illuminating Resolution
Paul Wood
GEO ExPro Magazine
... is reversed in polarity and cancels out at frequencies dependent on the streamer depth - creating ‘notches’ in the recorded seismic spectrum. Towing...
2011
Seismic Hydrocarbon Indicators in the South China Sea: Geological and Geophysical Aspects
Stephen P. J. Cossey, William T. Valenta, Francois Payot, Tom T. Ho, P. J. Wegenhofer
Indonesian Petroleum Association
... within thicker sands and polarity changes of seismic events at gas/water contacts. Reserves can be estimated prior to drilling by modeling the seismic...
1982
Use of Horizontal Seismic Sections to Identify Subtle Traps
Alistair R. Brown, Robert J. Graebner, C. G. Dahm
AAPG Special Volumes
... but uses gradational color, like the Seiscrop sections, rather than standard dual polarity. The uppermost arrow on Figure 12 indicates a trough which...
1982
Gas Hydrates: Part IV: Where are Gas Hydrates Found?
Lasse Amundsen, Martin Landrø, Thomas Reichel
GEO ExPro Magazine
... Simulating Reflector (BSR), from Indonesia. The water depth is 1,800–2,000m. Observe that the BSR has opposite polarity to that of the seabed. The average...
2012
Application of Offset Seismic Profiles in the Jatibarang Volcanic Reservoir
W. L. Nutt, Jujur Sirait
Indonesian Petroleum Association
... seismogram (SEG Normal, PERTAMINA Reverse Polarity). The trough is very well defined on the synthetic seismogram, Fig. 16. Figure 16. Identification...
1985
The Triassic System of Thailand: Implication on Geotectonic Evolution of Southeast Asia
Chongpan Chonglakmani
Geological Society of Malaysia (GSM)
... of the Triassic sequences and its tectonic setting that the polarity ofthe subduction is to the east underneath the Sukhothai Indosinia terrane...
1999
Updated Diatom Biostratigraphy for the Monterey Formation of California
John A. Barron
Pacific Section SEPM
... previous time scales such as that of Mankinen and Dalrymple (1979) by equating magnetic Anomaly 5 with magnetic polarity Chron 11 rather than...
1986
What Does It Mean When Bottom Simulators Are Black Swans?
Karyna Rodriguez, Neil Hodgson, Julia Davies, Searcher Seismic, Discover Geoscience
GEO ExPro Magazine
... in acoustic impedance observed on seismic data at the BSR generates a high amplitude event that has opposite polarity to the seabed and may cross-cut...
2021
Barents Sea: New TopSeis Images Illuminate Near-field Opportunities
Gustav Aagenes Ersdal, Idar Kjørlaug, CGG
GEO ExPro Magazine
... benefits from the (Figure 5). The top reflector shows a polarity change from the densely sampled high-resolution TopSeis data, allowing better lower part...
2021
Acoustic approximation VTI reverse-time migration using pseudo-depth mapping method
Xinwen Zhang, Jianping Huang, Zhenchun Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... to correct polarity reversal phenomenon in elastic wave RTM. Since the pseudo-depth domain method was proposed, lots of corresponding research in migration...
2023
Systematic Application of Seismic Amplitude Analysis for Exploration in the Upper Cibulakan Formation, Example from Gas Discovery LES-1 Offshore Northwest Java
Gunawan, V. L. Ball, Z. Imran, M. J. Gresko
Indonesian Petroleum Association
... phase before the analysis. In ARCO Indonesia's polarity convention, peak over trough is associated with low impedance. Of the 65 bright events studied, 30...
1995
3-D Seismic Operations in an Offshore Operating Oil Field
B. Indroyono, J. A. Musser, A. Isfan, P. C. Johnson
Indonesian Petroleum Association
... are interleaved. Primary reflection energy has the same polarity on these traces, while reverberations and ghost arrivals have opposite polarity...
1995
Integration of Multicomponet Surface Seismic, Multicomponent VSP and Microseismic in Reservoir characterization
Paul Constance, Jim Simmons, Shihong Chi, Lisa Sanford
Unconventional Resources Technology Conference (URTEC)
... themselves as sinusoids and polarity flips. The velocity separation between the fast and slow shear wave components is much larger than seen...
2015