An Optical Interferometric Method for the Measurement of Microdeformation in Sediments: RESEARCH METHOD PAPER

Nils-Gunnar Ohlson , Dorothy Guy-Ohlson

Journal of Sedimentary Research (SEPM)

... m/s2 k spring constant of test platform, cf. Figure 2 m, M mass of platform and of extra weight n index of refraction of water, 1.33 No positive...

Sensitivity analysis of acoustic waveform inversion to velocity anomalies in the near-surface using the Frchet derivative

Ao Cai, Colin A. Zelt

International Meeting for Applied Geoscience and Energy (IMAGE)

... of WI to obtain accurate velocities in the upper ~100 m depth, typically only the refraction data is inverted. Therefore, the tomography mode is dominant...

Deep Crustal Structure of the Northwestern Gulf of Mexico

Yosio Nakamura ,, Dale S. Sawyer , F. Jeanne Shaub, Kevin MacKenzie , Jurgen Oberst

GCAGS Transactions

... the acquired data using two-dimensional ray tracing to match the theoretical and observed arrival times of refracted and reflected waves, refining both...

Improving the image below complex overburden geology with FWI and Q-tomography: A case study at Etame license area, offshore Gabon

Richard Huang, Chong Chung, Benjamin Cole, Ivan Berranger, Ika Novianti, Paul Ware

International Meeting for Applied Geoscience and Energy (IMAGE)

... study on a multi-azimuth towed streamer survey over the Etame license area in offshore Gabon. The model building and imaging strategy features refraction...

Alteration of Volcanic Ash Near Denver, Colorado

Julius Schlocker, Richard Van Horn

Journal of Sedimentary Research (SEPM)

... of refraction of the fresh shards is 1.496 ±.002; no variations from this range were detected. The fresh shards contain both parallel, elongated...

Border Zone of the Peri-Caspian Depression–Immediate Prospects for Increasing the Oil and Gas Reserves in the Lower Volga Area

S. P. Kozlenko, K. A. Mashkovich, A. I. Khramoy, M. B. Ezdrin

Petroleum Geology: A Digest of Russian Literature

... of the Peri-Caspian depression. Data of great theoretical value were obtained from refraction profiles across the outer border parts of the Orenburg...

Interrelationship of Geology and Geophysics

O. L. Brace

AAPG Bulletin

... the torsion balance, the magnetometer, and the refraction seismograph, followed more recently by the reflection seismograph. OF GEOPHYSICS The Gulf Coast...

Variations in Morphology of Major River Deltas as Functions of Ocean Wave and River Discharge Regimes

L. D. Wright , J. M. Coleman

AAPG Bulletin

.... 133-196. Bretschneider, C. L., and R. O. Reid, 1954, Modification of wave height due to bottom friction, percolation and refraction: U.S. Army Corps...

Acoustic Properties of Sediment on the Southern Tonga Platform as Determined from Seismic Sonobuoy Studies

Jonathan R. Childs

Circum Pacific Council Publications

...) included more than 50 sonobuoy refraction-reflection lines (Table 1). Although these sonobuoy profiles were com­ plicated by the usual problems...

Role of Geophysical Methods in Study of the Geology of Southeastern Turkmenistan

V. V. Gapreyev, B. M. Geyman

Petroleum Geology: A Digest of Russian Literature

.... It is interesting to note that such large tectonic elements as the East Kara Kum swell are in general not reflected in the Taisolines. The status...

New Data on the Structure of the Central Part of the North Caspian Depression

V. N. Mal’tsin, I. A. Kobylkin, B. P. Shalimov, S. S. Skrotskiy

Petroleum Geology: A Digest of Russian Literature

... seismic sounding refraction interfaces ( d o k -granitic layer, d 1 k -basaltic layer, d o M , d o M otp-refracting and reflecting...

Abstract: Sub-basaltic Imaging Using Converted Waves - A Pilot Study from the North Atlantic Margin, by X-Y. Li, P. Hanssen, and C. Macbeth; #90923 (1999)

Search and Discovery.com

The Role of Statics Application in the Imaging of Sub-Surface in Fold Belt Areas, #40746 (2011)

Arun Kumar Arya, Bharat Chandra Joshi, Narinder Pal Singh,

Search and Discovery.com

.... The contrast in the acoustic impedance of the two layers determines the amplitude of the reflected signal. The reflected signal is detected on surface...

Seismic Processing in the Papua New Guinea Fold Belt - Recent Experience

N. J. Fisher, F. R. Nicholson

Papua New Guinea (PNG) Petroleum Convention Proceedings

... recorded data is ironically not in the reflected but in the refracted energy. This is not only useful for the refraction static calculation but also...

Reconnaissance Geology in State of Anzoategui, Venezuela, South America

M. Kamen Kaye

AAPG Bulletin

... Miocene or Mio-Pliocene were poured. This exceptional condition is reflected in the trace of the coast line which appears in Figure 2 as a broad...

Southeast Boundaries of the Tatar Dome

V. A. Klubov

Petroleum Geology: A Digest of Russian Literature

... in the core of the Serafimovka uplift. To the south of the latter, drilling and refraction surveying have revealed new projections of the basement (Troitskiy...

Gravity Evidence for the Thinning of the Crust Around the North Sumatra Area

Wawan Gunawan A. Kadir, Sigit Sukmono, M. T. Zen, Lilik Hendrajaya, Djoko Santoso

Indonesian Petroleum Association

... along the continuation of the Investigator Ridge Transform Fault, has been observed by many studies. The discontinuity is reflected by a sharp change...

AAPG Studies in Geology No. 58, the Geology of Cuba - Ch.4 Geophysical Characteristics

Georges Pardo

AAPG Special Volumes

... the deep crustal structure of Cuba. The method used refraction shooting along long profiles parallel and perpendicular to the regional strike, as well...

SG14: The COCORP Seismic Reflection Traverse Across the Southern Appalachians - Geologic Divisions in the Southern Appalachians and Interpretation of the Seismic Data

Frederick A. Cook, Larry D. Brown, Sidney Kaufman, and Jack E. Oliver

AAPG Special Volumes

... 3 would be related to a lithologic or structural boundary in the lower crust. Perhaps they result from some coherent noise (a reflected refraction...

Integrating Geophysical and Trench Data to Analyze Shallow Faulting in the Wasatch Fault Zone Near Provo, Utah County, Utah

Alvin K. Benson, Nathan Brett Mustoe, James N. Carver

Utah Geological Association

..., such as seismic refraction, gravity, magnetic, and radar, can be integrated with geotechnical engineering methods, such as drilling and trenching, to obtain...

Seismic Refraction and Reflection in Caribbean Sea

N. Terence Edgar , John I. Ewing , John Hennion

AAPG Bulletin

...Seismic Refraction and Reflection in Caribbean Sea N. Terence Edgar , John I. Ewing , John Hennion 1971 833 870 55 6. (June) The results of 30...

Q tomography workflow: Land case study in the Eagle Ford Play

Itai Sharabi, Matan Shustak, Orly Kletenik-Edelman, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

... Reflection-Refraction Tomography (Shustak et al., 2022). Figure 1. Topography map of the Eagle Ford Play in Live Oak County in south central Texas. Third...

Measuring Seismic with Light

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

.... It is usually made up of silica doped with another material to achieve the proper index of refraction. The core is surrounded by the cladding layer which...

Tectonics of the Pre-Devonian Formations of the Birsk Saddle

Yu. B. Fain, Yu. N. Kukharenko

Petroleum Geology: A Digest of Russian Literature

... but would have been reflected in the form of a new block movement. In the higher-occurring sedimentary rocks (more plastic) these block movements...

System of Faults in the Northwest Part of the Dnieper-Donets Depression

V. M. Smelyanskiy

Petroleum Geology: A Digest of Russian Literature

...: seismic (refraction), gravity, magnetic, and electrical. The refraction surveying was the most satisfactory. Unfortunately, only individual parts...