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The AAPG/Datapages Combined Publications Database
Showing 1,445 Results. Searched 200,635 documents.
The Origin of the Green River Formation
Junius Henderson
AAPG Bulletin
..., with six species. The herrings now living are mainly marine, though some ascend the rivers to spawn and a few live in fresh-water. The sting-rays...
1924
Beam Migration for Imaging of Complex Structures
Karl Schleicher, John Sherwood, Lynn Comeaux, Mazin Farouki
Indonesian Petroleum Association
.... Since S & R rays corresponding to a wavelet’s properties normally will not intersect to give a model two way traveltime exactly equal to the wavelet...
2009
Experimental Coalification Of Indonesian Peat and Buried Wood
J.C. Shearer, T.A. Moore, W.H. Orem, H.E. Lerch, S.G. Neuzil, C.B. Cecil
The Society for Organic Petrology (TSOP)
... thickness, &stance between rays, and ray cell lumen size. Results - General The general characteristics of the peat altered substantmily after codification...
1994
Simultaneous Gamma Ray — Resistance Logging as Applied to Uranium Exploration
R. A. Broding, Ben F. Rummerfield
Tulsa Geological Society
... emitter, it is important to note that gamma rays cannot detect uranium directly. Fortunately, the uranium series has five daughter-elements...
1955
Comparison of Electrical Logs and Physical Parameters of Marine Sediment Cores
Frank B. Chmelik, Arnold H. Bouma, Richard Rezak
GCAGS Transactions
..., not readily apparent on photographs or X-rays, are easily identified by their effects on the electrical logs. Clearly, the ability to quickly identify zones...
1969
AVO Analysis of a Pennsylvanian Age Channel Sandstone in the Arkoma Basin, Oklahoma
Eric Kubera
Oklahoma City Geological Society
...-------------------------- larger than the angle associated with shot-receiver pair #3 (0s3. In other words, the angle of the incident rays at the boundary increases with source...
1997
Logging and Interpetation Technique in the Arkoma Basin
B. F. Irvin
Tulsa Geological Society
... of subsurface formations penetrated by a borehole. Gamma rays are emitted from a source on the logging tool and, after diffusing through the formation...
1962
Methods of Estimating and Predicting Abnormal Formation Pressures
Vladimir A. Serebryakov
Montana Geological Society
... of a general form, zones of abnormal pressure can be located using resistivity, density, sonic travel time, gamma-rays and neutron-gamma logs...
1996
Recognizing Non-Steady-State Weathering Conditions In Ancient Submarine Fan Systems: Correcting For K-Metasomatism Reveals A Late Cretaceous Non-Steady-State Weathering Regime, Point Loma Formation, Southwestern California, U.S.A.
Marcelo Azevedo, Jason R. Parizek, Heather N. Webb, Kristen N. Dennis, Matthew T. Dorsey, Nicole C. Fenton, Craig M. Hall, Gary H. Girty
Journal of Sedimentary Research (SEPM)
... between rays extending through the most and least weathered mudstones. Hence, detritus in the Point Loma Formation was derived mainly from regolith...
2017
Rakaman seismos dalam lubang gerudi bagi penyiasatan tanah runtuh: Kajian kes tapak Stesen Pemancar Gelombang Mikro Telekom, Jalan Temerloh-Mentakab, Pahang (IN MALAY), Downhole seismic logging for landslide investigations: Case study at the Microwave Transmission Station, Temerloh-Mentakab Road, Pahang
Abdul Ghani Rafek, Rahman B. Yaccup, Abdul Rahim Samsudin, Khairul Anuar Mohd. Nayan, Umar Hamzah
Geological Society of Malaysia (GSM)
...;lttJJh~"': ..... ...... ..... .... ..... ...q~ ..... .... .... ..... ..... ..... Kontor : . : ' Jalan rays -1- Pagar I 10 I o 20 I 30m Rajah...
2000
A case study using FWI to image pre-Messinian target in the East Mediterranean Sea
Jyoti Kumar, Marcus Bell, Tamer Darwish, Mai Ahmed, Mahmoud Ahmed, Moataz Ahmed
International Meeting for Applied Geoscience and Energy (IMAGE)
...-lengths of homogeneities, such as those found within the complex Messinian layer, cannot be represented by rays and Snell’s Law, waveform-based back...
2022
On-site XRF Analysis of Drill Cuttings in the Williston Basin
Nicholas Lentz, Russell Carr, Lance Yarbrough, Kathleen Neset, Brian Lucero, Tim Kirst
Unconventional Resources Technology Conference (URTEC)
... with a beam of high energy X-rays that excite the electrons in the atoms comprising the sample. As the electrons relax back to their ground state energy...
2014
Implications of elastic full-waveform inversion for northern Red Sea
Kate Glaccum, Denes Vigh, Kai Wang, Xiaoling Tan, Jennifer Qin, Vivian Robertson, Trevor Ferguson
International Meeting for Applied Geoscience and Energy (IMAGE)
...’s fast evaporite regime. Note the high concentration of rays in both cases, up to 3-4km depth. Third International Meeting for Applied Geoscience...
2023
High-fidelity full-waveform imaging via impedance inversion
Feng Chen, Yu Zhang, Lian Duan, Weishan Han, Yilong Qin, Qianggong Song
International Meeting for Applied Geoscience and Energy (IMAGE)
..., and G. Lambaré, 2000, Can we quantitatively image complex structures with rays?, Geophysics, 65, 1223–1238, doi: https://doi .org/10.1190/1.1444814...
2023
Paleocene Vertebrates and Nonmarine Mollusca from the Goler Formation, California
Malcolm C. McKenna, J. Howard Hutchison, Joseph H. Hartman
Pacific Section SEPM
... consisting of at least 6 spiny rays followed by at least 9 longer soft rays. Fragments of the caudal fin show that it is symmetrical and consists of 18...
1987
High-resolution imaging using least-squares migration in the image domain (LSMi) for a marine distributed acoustic sensing (DAS) 3D-VSP
Ali Sayed, Francesca Twynam, Ran Bachrach, Maud Cavalca, Leo Leon, Maria Shadrina, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist
International Meeting for Applied Geoscience and Energy (IMAGE)
... point. A total of 17 receivers were modeled for direct and reflected rays. The attenuation attribute was interpolated across the image space...
2023
Test-Pit Exploration in Coastal Plain of Sumatra
Olaf P. Jenkins
AAPG Bulletin
... are the woods when the sun rays come at low angle. GEOLOGIC DATA SECURED BY PIT METHOD The most important data obtained are those of dip and strike...
1930
Sonic Saturation Inversion and AVO Modeling in the Tunu Gas Field
Patrick Fouchard, Scott Leaney, Sugimin Harsono
Indonesian Petroleum Association
... real data examples support this. It is worth noting that the sonic method makes use of waves, not rays, so some averaging of annulus and formation...
1996
Preservation of Porosity in the Deep Woodbine/Tuscaloosa Trend, Louisiana
Alan Thomson
GCAGS Transactions
... by an inplace analysis of x-rays (EDAX) (fig. 9d), supplemented by x-ray diffraction analysis. Of great importance to preservation of porosity...
1979
High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study
Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc
Indonesian Petroleum Association
... information was available. In areas of the model, where turning rays information was not available, reflection tomography was required to assist...
2014
Subsurface Characterizaton Using Microseismic Velocity, Attenuation, and Ansiotrophy Tomography in a Geothermal Field
Ahmad Syahputra, Andri Dian Nugraha, Rachmat Sule, Sri Widiyantoro
Indonesian Petroleum Association
.... Norm and gradient damping were added to constrain blocks without rays and to produce a smooth solution model (Grandis, 2009; Widiyantoro et al., 2000...
2014
A Review of the Cretaceous Floras of East-Central Utah and Western Colorado
William D. Tidwell, Brooks B. Britt, Leith S. Tidwell
Utah Geological Association
.... Paraphyllanthoxylon utahense tangential section. Note the ends of the multicellular rays separated by vessels. J. P. utahense cross section showing relative...
2007
Depth conversion and seismic inversion of the Scarborough gas field
Joseph Kremor, Manish Agarwal, Paul Spaans, Ung Sing Wong
Petroleum Exploration Society of Australia (PESA)
... by projecting the time errors along zero offset rays and minimising the vertical difference between the observed and modelled travel times. As only one ray path...
2019
The Cretaceous-Tertiary Transition: Hunting Big Bend’s Most Ancient Mammals
Barbara Standhardt
West Texas Geological Society
..., fishes (rays, sharks, gars, and bowfins), amphibians (frogs and salamanders), and reptiles (turtles, lizards, snakes, crocodiles, and dinosaurs...
1986
Pelagic Sediments of the North Atlantic Ocean
Carl W. Correns
Special Publications of SEPM
... more rapidly. The mineral constituents vary considerably both in the microscopic fractions and in the finest fractions analyzed by X-rays. Relatively few...
1955