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The AAPG/Datapages Combined Publications Database

Showing 678 Results. Searched 195,452 documents.

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ABSTRACT: A New Dinosaur Ichnofauna from the Late Cretaceous of Wrangell-St. Elias National Park and Preserve, Alaska; #90125 (2011)

Fiorillo, Anthony, Adams, Thomas, Kobahyashi, Yoshitsugu

Search and Discovery.com

... to the theropoda was based on the sinusoidal shape of the impression of the middle digit. Ornithopod impressions, identified by clearly blunt and rounded digit...

2011

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: Xenoliths and Xenocrysts from the Renard Kimberlites, Quebec: A Comprehensive Study of Mantle Samples to Determine the Evolution of the Superior Craton; #90172 (2014)

Lucy Hunt, Thomas Stachel, John Armstrong

Search and Discovery.com

... of the peridotitic garnets is observed. Three main patterns have been identified: (1) sinusoidal; (2) humped; and (3) sloped. Sinusoidal patterns have...

2014

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

Abstracts: Measuring Minor Structures in Borehole Image Logs; #90173 (2015)

Kris Vickerman and Deborah Spratt

Search and Discovery.com

... sinusoidal traces to the predominantly planar features that are common in these logs, such as fractures or bedding. The interpretation software takes...

2015

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

3-D Analog Modeling of Inversion Thrust Structures

Yasuhiro Yamada, Ken McClay

AAPG Special Volumes

... rollover anticlines and crestal-collapse graben systems that parallel the along-strike, sinusoidal or cuspate plan geometries of the detachment...

2004

Fourier Analysis of the Laminated Facies of the Middle Bakken Member, Sanish-Parshall Field, Mountrail County, North Dakota, #50996 (2014).

Virginia A. Gent, Stephen A. Sonnenberg

Search and Discovery.com

... events. Non-sinusoidal lamination pattern resulted from a low sediment influx and probably was the result of eolian transport. Low sediment influx...

2014

Abstract: Application of Target-oriented VVAZ on Relatively thin Fracture Reservoir; #90174 (2014)

Stephen K. Chiu, Jack Howell, Jason A Stein, Samik Sil, and Jeff Malloy

Search and Discovery.com

... to test the limitation of this algorithm. A typical offset gather with NMO correction of three models exhibits the sinusoidal “wobble” across azimuths...

2014

A New Direction for Asian Stratigraphy

Peter Lunt

Southeast Asia Petroleum Exploration Society (SEAPEX)

... the models are still made to fit. These assumptions include curvilinear to almost sinusoidal sea level change with a fractal-like scaling of magnitude...

2019

Annual Sedimentation Cycles in Rhythmites of Carboniferous Tidal Channels

Stephen F. Greb, Allen W. Archer

Special Publications of SEPM

... and other CHANNEL RHYTHMITES sinusoidal thickness dis cycle Greb and Archer 1995 However even where cyclic rhythmites are documented noncyclic rhythmites...

1998

Abstract: Minor folds and their relationship to regional fold evolution, central Meguma Terrane, Nova Scotia

Michael Young, Richard Horne, Nicholas Culshaw

Atlantic Geology

... for the origin of buckled bedding-parallel veins in the Meguma Group. Minor folds in coticule layers display ptygmatic, sinusoidal, box, and chevron fold...

2000

Abstract: Multiphase Deformations within the Late Permian Strata of the Raub Gold Mine, Pahang

Mustaffa Kamal Shuib

Geological Society of Malaysia (GSM)

... (F1) are tight to isoclinal, upright to slightly inclined, sinusoidal forms with gentle plunge. These folds have the following characteristics:1...

1994

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

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

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