A Study of the Morphology and Dioptrics of Some Ostracode Eyespots

Mervin Kontrovitz , John H. Myers

GCAGS Transactions

... a small radius of curvature compared to the convex outer surface. Light is converged most strongly by the central area and focused in the underlying eye...

Hydrocarbon Potential and Gold Mineralization in the New Ireland Basin, Papua New Guinea: Chapter 8: Southwest Pacific and Eastern Indian Ocean Margins

Michael S. Marlow, Neville F. Exon, Shawn V. Dadisman

AAPG Special Volumes

... Basin is 150 km wide and trends northwest for 600 km between Feni and Mussau islands in northern Papua New Guinea. Multichannel seismic reflection data...

Rift-Initiated Permian to Early Cretaceous Subsidence of the Sverdrup Basin

R. A. Stephenson, A. F. Embry, S. M. Nakiboglu, M. A. Hastaoglu

CSPG Special Publications

...) and (3) and assuming that the curvature of the phase boundary is small gives Here ∂(s-so)/∂t is the relative velocity of the phase boundary...

Preservation of Autogenic Processes and Allogenic Forcings in Set-Scale Aeolian Architecture II: The Scour-and-Fill Dominated Jurassic Page Sandstone, Arizona, U.S.A.

Benjamin T. Cardenas, Gary Kocurek, David Mohrig, Travis Swanson, Cory M. Hughes,, Sarah C. Brothers

Journal of Sedimentary Research (SEPM)

... by the relatively large coefficients of variation (cv) in middle Page set thicknesses (cv = 0.90), which are consistent with set production...

Stratigraphic Relations of Park City Group (Permian) in Eastern Nevada and Western Utah

Bruce R. Wardlaw , James W. Collinson

AAPG Bulletin

... join or small white chalcedony rosettes coalesce to form chert beds. Browning (1973, p. 38) noted that the latter closely resembles "chicken-wire...

Leakage Risks Associated with Coal Sequestration in Some Areas of the Central Appalachians: Subsurface, Seismic and Geomechanical Evaluations, by Tom Wilson, Hema Siriwardane, Xiaochao Tang, Brian Connolly, and Jamie Tallman, #80007 (2007).

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Kinta Gas Field, Haskell County, Oklahoma

John Woncik

Tulsa Geological Society

.... It is a white to pink-tan, finely crystalline limestone. A small amount of gas was reported from the Hunton in the Superior #1 Allred. Ordovician...

Geological Aspects of the Quail Creek Dike Failure

Chad Gourley

Utah Geological Association

... of increased seepage, discolored seepage, and developing small sinkholes over the previous three years. Downstream evacuation prevented fatalities, but flooding...

Geometric Models of Listric Normal Faults and Rollover Folds (1)

WILLIAM F. DULA, JR.

AAPG Bulletin

... Geology, v. 9, p. 1047-1049. White, N. J., 1987, Constraints on the measurement of extension in the brittle upper crust: Norsk Geologisk Tidsskrift, v...

SHALLOW BEREA SANDSTONE GAS FIELDS ON THE SUFFIELD FAULT ZONE, PORTAGE COUNTY, OHIO

Alan H. Coogan, Department of Geology, Kent State University, Kent, Ohio

Ohio Geological Society

... structural position which reasonably reflects small-scale faulting, as was confirmed by shallow seismic reflection surveys of the St...

History of the Imogene Oil Field Atascosa County, Texas

John W. Bolinger

GCAGS Transactions

... reconnaissance reflection seismograph survey followed in 1940, preceding the drilling of the discovery well by about two years. A further detailed reflection...

Relation of Geophysics to Salt-Dome Structures

J. Brian Eby , Robert P. Clark

AAPG Bulletin

... seismograph map of Moss Bluff is given, and reflection-seismograph maps are given for Sheppards Mott, Tomball, and English Bayou-Gillis. A magnetic map...

Clay Mineral X-Ray Diffraction Analysis: Ag Filter-Pipette Methods: METHOD PAPER

James P. M. Syvitski, Peter Bayliss

Journal of Sedimentary Research (SEPM)

... is useful for the identification of clay minerals with small particle size in low concentration, especially mixed-layer clays. For routine clay mineral...

ABSTRACT: Shallow Seismic Reflection Confirmation of Berea Gas Pool Structure and Faulting, Portage County, Ohio, by Alexandros Sergoulopoulos, Alan H. Coogan, and Donald F. Palmer; #91041 (2010)

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Abstract: Geologic Patterns of Internal Architecture in Reef-shoal Complexes along Kaijiang-Liangping Trough in Sichuan Basin during Late Permian Changxingian, by Xu, Anna; Wang, Zecheng; Zhai, Xiufen; Yin, Jifeng; Gu, Zhidong; Li, Qiufen; Bao, Dongmei; #90163 (2013)

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Elastic full-waveform inversion using random space shift

Yuhui Yao, Jizhong Yang, Yuzhu Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... limited studies on other methods, such as elastic wave envelope inversion (Huang et al., 2015), nonlinear elastic reflection wave inversion (Guo...

Developing a New Technique Through Partnering with Contractors: Reservoir Prediction Utilizing AVO Walkaway VSP Data to Calibrate Surface Seismic Gathers, a Case Study in Indonesia

Patricia L. C. Henderson, Dan Hampson, Scott Leaney, Nigel Smith, John Rice, Dave Boreham

Indonesian Petroleum Association

... for Amplitude vs. Offset. AVO is the process of investigating reflection coefficients and their variations along offset. Using reflection coefficient...

Seismic Sedimentological Analysis and Lithofacies Framework of the Mulga Downs Group in the Blantyre Sub-Basin, Darling Basin, Western New South Wales

Mohamed Khalifa

Petroleum Exploration Society of Australia (PESA)

... South Wales Present address: 185B Richardson Road, Mt Albert-Auckland 1004, New Zealand Abstract High-resolution seismic reflection profiles and well...

Albion and Albion North Fields, Reno County, Kansas

Margaret O. Oros

Kansas Geological Society

.... A survey of the area made with a reflection seismograph preceded the drilling. Discovery Wells (Fields and Producing Zones) Albion Field Hertha...

Textural Preservation in Siliceous Hot Spring Deposits During Early Diagenesis: Examples from Yellowstone National Park and Nevada, U.S.A.

Nancy W. Hinman, Malcolm R. Walter

Journal of Sedimentary Research (SEPM)

..., C.G., and Hutchinson, R.A., 1991, Conditions leading to a recent small hydrothermal explosion at Yellowstone National Park: Geological Society...

Saskatchewan Exploratory Progress and Problems

R. A. Bishop

CSPG Bulletin

... in relatively small detail were carried on over the province with the most serious progress implemented by Imperial Oil from 1940-1946. "In 1932 surface...

High Resolution Seismic and the Search for the Subtle Trap

James A. Wells

West Texas Geological Society

...High Resolution Seismic and the Search for the Subtle Trap James A. Wells 1989 89 115 Traditionally recorded and processed seismic reflection data...

Premigration attenuation analysis and mapping to image domain by weighted migrations

Yonghe Sun, Chunling Wu, Mark Fan, Zhemin Tan

International Meeting for Applied Geoscience and Energy (IMAGE)

... path and a small change Δ𝑡 ∗ ≈ Δ𝑡/𝑄(𝑡). (b) For a two-ray reflection ray path with source 𝒔 and receiver 𝒓, a small change Δ𝑡 in reflection...

Clay Mineralogy of the Old Red Sandstone (Devonian) of Scotland

M. J. Wilson

Journal of Sedimentary Research (SEPM)

... trioctahedral reflection may also occur, probably due to a small amount of separate chlorite. Further differences are apparent after glycerol and heat treatment...

Small-Scale Structures as Signatures for the Tectonic History of the Fundy Rift Basin, Maritime Canada, by J. A. Elder Brady; #90902 (2001)

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