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The AAPG/Datapages Combined Publications Database

Showing 651 Results. Searched 190,142 documents.

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Abstract: Fish trace fossils from the Horton Bluff Formation (Lower Carboniferous) of Nova Scotia

Donald Wood, Barry Cameron

Atlantic Geology

... to leave traces: (1) isolated and discontinuous drag marks of fin spines, possibly made by acanthodian fish and (2) sinusoidal trails left by fins...

1998

Recent Carbonates of Isla Mujeres? Quintana Roo: ABSTRACT

Robert L. Folk

AAPG Bulletin

..., consists of oolitic dunerock. The Caribbean coast is subjected to heavy waves, and the sediments are coarse, well sorted, highly polished...

1963

Abstract: Vertebrate and invertebrate trace fossils from the Horton Bluff Formation (Lower Carboniferous) near Avonport, Nova Scotia

Donald Wood

Atlantic Geology

... Valley region. Fish swimming too close to the bottom were responsible for sinusoidal traces left by tail, fin, and spine drags. These trails...

1998

Abstract: Wave Propagation Direction from Poynting Vector and its Application to RTM Angle Gathers; #90319 (2018)

Kwangjin Yoon, Young Seo Kim, Woodon Jeong

Search and Discovery.com

... sinusoidal waves within a wavelength have the same propagation direction. This approach was applied to both source- and receiver-side Poynting vectors...

2018

Using Borehole Images for Target-Zone Evaluation in Horizontal Wells

Neil F. Hurley , David R. Thorn , Janine L. Carlson , Sandra L. W. Eichelberger

AAPG Bulletin

... and clay-rich interbeds appear as dark, high-conductivity traces on the FMS log. These traces can be fit with sinusoidal curves and oriented...

1994

Abstract: Sedimentology of Composite Sand-and-Gravel Beach-Shoreface Complexes; #90171 (2013)

Shannon E. Frey and Shahin E. Dashtgard

Search and Discovery.com

... further offshore. Alongshore, sediments in the intertidal zone show a sinusoidal trend in mean grain size with a wavelength of approximately 400 m...

2013

Abstract: Sedimentology of Composite Sand-and-Gravel Beach-Shoreface Complexes; #90171 (2013)

Shannon E. Frey and Shahin E. Dashtgard

Search and Discovery.com

... further offshore. Alongshore, sediments in the intertidal zone show a sinusoidal trend in mean grain size with a wavelength of approximately 400 m...

2013

Nearshore Bars Along United States Gulf Coast: ABSTRACT

Dag Nummedal

AAPG Bulletin

... and low wave energy. The bars have a sinusoidal cross-profile, constant height, and constant spacing suggesting that they form in response...

1980

Broadband Seismic Technology and Beyond: Part III: The Interaction between Ocean Waves and Recorded Seismic Data

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... and the seismic streamer beneath the ocean surface. How quiet is life below the waves? Sinusoidal Ocean Waves If we assume that the ocean surface is represented...

2013

Geological-petrophysical insights in the deep Cambrian dolostone reservoirs in Tarim Basin, China

Jin Lai , Shichen Liu , Yi Xin , Song Wang , Chengwen Xiao , Qiuqiang Song , Xu Chen , Kefu Yang , Guiwen Wang , and Xiujian Ding

AAPG Bulletin

...) on the image logs. Rapid decrease in resistivity, increasing in sonic transit time values, and the dark sinusoidal waves on the image logs are typical...

2021

Internal-Wave Currents as a Mechanism to Account for Large Sand Waves in Navarinsky Canyon Head, Bering Sea

H. A. Karl, D. A. Cacchione, P. R. Carlson

Journal of Sedimentary Research (SEPM)

... is limited to water depths between 175 and 490 m. Common features of the sand waves include a general sinusoidal shape, weak asymmetry upslope, upslope...

1986

Abstract: Cross-Validation of 3C and 9C Prestack Shear Wave Splitting Analysis at Big Sky; #90224 (2015)

Jeff P. Grossman and Gulia Popov

Search and Discovery.com

... anisotropy. Azimuthal anisotropy for P waves manifests as a sinusoidal variation in traveltime with source-receiver azimuth. This variation is negligible...

2015

Experimental Study on the Effect of Deceleration on the Vertical Sequence of Sedimentary Structures in Silty Sediments

Indranil Banerjee

Journal of Sedimentary Research (SEPM)

... investigations (Rees, 1966; Southard, 1972). Some unique features of silt bedforms such as sinusoidal silt waves will be described in a separate paper...

1977

Antidunes as Trochoidal Waves

Bryce M. Hand

Journal of Sedimentary Research (SEPM)

... that if the surface waves are sinusoidal, the antidunes beneath them should also be sinusoidal but of smaller amplitude. Furthermore, the bedform profile should...

1969

Impact of Non-Linear Transport Properties on Low Permeability Measurements; #70299 (2017)

Yuan-Yun Lin, Michael T. Myers

Search and Discovery.com

... are modeled: steady state, unsteady state, pulse decay, sinusoidal pressure and moving boundary conditions. These differ by the addition of reference...

2017

Genesis and Preservation of Antidune Stratification in Modern and Ancient Washover Deposits: ABSTRACT

J. H. Barwis, M. O. Hayes

AAPG Bulletin

.... (March) End_Page 419------------------------------ Antidunes are nearly symmetrical, sinusoidal bed forms formed by near-critical flows, and comprise...

1983

Broadband Seismic Technology and Beyond: Part XI: Which Technology to Choose?

Lasse Amundsen, Martin Landrø, Jan Erik Lie, Vidar Danielsen, Per Eivind Dhelie

GEO ExPro Magazine

... to Choose? Using the Utsira High as a field laboratory for broadband testing The answer, my friend, is hiding in the waves, the answer is hiding...

2014

Abstract: Bar Morphology Along The Mississippi Sound Margin

Dag Nummedal, Rosemary Manty, Shea Penland

GCAGS Transactions

..., along shoreline segments of convex plan form. The bars have a sinusoidal cross-profile, are generally about one half meter high and have a spacing...

1980

P-S Converted Wave AVO Analysis for Reservoir Characterization

Ehsan Sadeghi, Cepi Adam, Effendy Siawira, Hilfan Khairy

Indonesian Petroleum Association

...-component seismic data has lead to significant improvements in the quality of registered shear waves and the resulting subsurface images from the P...

2017

Solving Shear-Wave Splitting in PS Data Processing of 3D 4C OBN Seismic Survey Offshore Nunukan, Indonesia

Andreas Waluyo, David Tilling, Supriyono, Rio Sebayang, Agus Warmar Rasa

Indonesian Petroleum Association

...). This stress exhibits azimuthal anisotropy in seismic waves, defined as the dependence of seismic wave speeds on propagation azimuth. In homogenous...

2020

Calibration of PS Shear Wave Anisotropy in a Mississippi Lime Play, North-Central Oklahoma

Scott Singleton, Shihong Chi, Lisa Sanford, Paul Constance

Unconventional Resources Technology Conference (URTEC)

... sinusoidal variation), (2) amount of azimuthal travel time correction after C-wave splitting estimation and compensation, (3) amount of radial component...

2016

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