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The AAPG/Datapages Combined Publications Database

Showing 340 Results. Searched 195,354 documents.

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Incorporating refraction time-shifts into geophysical monitoring systems for monitoring shallow CO2 accumulations

Martyn Steel, Sjoerd A.L. De Ridder, Mike Branston, James Butt, Gabrielle Busanello

International Meeting for Applied Geoscience and Energy (IMAGE)

... that for a two-layer homogenous isotropic medium with increasing velocity with depth (Figure 1), that there is an observable refraction time-shift which can...

2023

Abstract: High Resolution Seismic Refraction Survey in Urban Area (Paper B24)

Wan Suriani A Raman, Zuhar Tuan Harith

Geological Society of Malaysia (GSM)

... 30 stacks. The collected data then processed using the IXRefrax software. All lines show a two layer case where the first layer is around 7 m - 16 m...

2010

Depth of Penetration of Geophysical Exploration Methods as Applied in Shallow Engineering Geological Investigations

Abdul Ghani Rafek

Geological Society of Malaysia (GSM)

... layer thickness. A number o f estim ates for the depth of penetration are known when using the refraction seismic method. Bullock (1978) estim ates...

1989

ABSTRACT: Evolution of a Near-Surface Model in an Area of Complex Topography; #90051 (2006)

Michael L. Pittman, Ralph Bridle, Robert E. Ley, II, Ameera A. Mustafa

Search and Discovery.com

... anomalies was inappropriate for recently acquired 3D seismic data. Local anomalies were still evident after building a two-layer model that defined...

Unknown

Abstract: Interferometric Approach to Complete Refraction Statics Solution; #90187 (2014)

Valentina Khatchatrian and Mike Galbraith

Search and Discovery.com

... statics corrections. A two layer near surface model has been built to compute refraction statics. Figure 8 shows the brute stack (CMP) before...

2014

Upper Crustal Structure Derived from Seismic Refraction Experiments: Grand Banks of Eastern Canada

I. Reid, C.E. Keen

CSPG Bulletin

... these structural variations, which are exhibited in the seismic refraction data presented here. Because of the discrepancy between the two data sets, the seismic...

1988

Sand Dune Development within the Simpson Desert and its Effect on Statics Calculation

P. G. Senycia

Petroleum Exploration Society of Australia (PESA)

... . A two-layer weathering model was used on this occasion with the following parameters: (a) A weathering velocity of 800 m/s. (b) A sub-weathering...

1989

Mineral Deposits and Plate Tectonics

George P. Woollard

AAPG Special Volumes

... by Woollard (1975) and the two-layer model for the velocity Fig. 2. Comparison of the velocities determined for the ophiolite sequence exposed...

1981

ABSTRACT: Near-Surface Models for Transition Zone Data in the Arabian Gulf; #90051 (2006)

Joseph R. McNeely, Robert E. Ley, II, Nikolai Barsoukov, Ralph Bridle, Mohammad A. Homaili, Bryan R. Maddison

Search and Discovery.com

... points producing a two layer model. In addition, the land surface had sand dunes over which the revised model was enhanced with refraction statics...

Unknown

Thermal-Mechanical Modeling of Early Paleozoic Miogeoclinal Sequences in Southern Canadian Rockies: ABSTRACT

Gerard C. Bond, Michelle A. Kominz

AAPG Bulletin

... of the Cordilleran miogeocline. We have analyzed stratigraphic relations within the inner carbonate belt east of the Kicking Horse Rim using one- and two-layer...

1983

The Use of Seismic Refraction Method in Slope Failure Investigation

Khairul Anuar Mohd. Nayan, Rahman Yaccup, Abd. Rahim Samsudin, Umar Hamzah, Abd. Ghani Rafek

Geological Society of Malaysia (GSM)

... of borehole BH4. Seismic refraction survey The distance-time plot and the subsurface profile (Fig. 8) from the spread line SP5 has shown a two layer case...

1997

Seismic Refraction and Reflection in Caribbean Sea

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

AAPG Bulletin

... thick (Morgan, 1968; Isacks et al., 1968), then the problem is resolved, but the two-layer Caribbean crust should not be considered a combination...

1971

Finite Difference Modelling: Part IV

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

... at any given time, the wavefront is spherical in 3D (circular in 2D) with its centre at the source. In the two-layer medium, the wave that propagates...

2019

Orientation of Oil and Gas Exploration in the Black Sea Region

B. L. Gurevich, L. F. Klitochenko, M. V. Chirvinskaya

Petroleum Geology: A Digest of Russian Literature

... isoanomaly lines, by reflection and refraction seismic survey data, and particularly by electrical data (continuous two-layer axial sounding and continuous...

1961

Gravity Anomalies and Passive Continental Margins, Canada and Norway

L. W. Sobczak

CSPG Special Publications

.... This wedge is shown as an additional layer of water in Figures 8A and 8B and was determined from the residual anomaly (Figure 1C). Two crust-mantle...

1975

Depth of bedrock in the Seal Cove river valley, Newfoundland: a geophysical case study

E. Scott Schillereff, Hugh Miller, John E. Gale

Atlantic Geology

... electromagnetic and refraction hammer seismic methods. These geophysical interpretations, based on an assumed two-layer geometry, were compared with direct...

1987

Wave Evolution in Cohesive Sedimentary Environments: Open Problems

A. Sheremet, J. M. Kaihatu, G. W. Stone, X. Zhang

GCAGS Transactions

... Estuarine Stud., v. 42, p. 126-148. Dalrymple, R. A., and P. L.-F Liu, 1978. Waves over soft muds: a two-layer fluid model: J. Phys. Ocean. v. 8, p...

2003

-- no title --

user

Search and Discovery.com

...user Spherical-Wave Computational AVO Modelling in Elastic and Anelastic Isotropic Two-Layer Media Arnim B. Haase and Charles P. Ursenbach University...

Unknown

-- no title --

user

Search and Discovery.com

...user Spherical-Wave Computational AVO Modelling in Elastic and Anelastic Isotropic Two-Layer Media Arnim B. Haase and Charles P. Ursenbach University...

Unknown

Deep Subsurface of the Barents Sea Shelf along Profile DSS-82

M. L. Verba, A. D. Pavlenkin, Yu. V. Tulina

Petroleum Geology: A Digest of Russian Literature

.... There is an accompanying decrease in thickness of the basaltic layer and rise of the M-discontinuity. The two-layer crust of the South Barents depression differs markedly...

1990

Deep Structure and Evolution of the Carolina Trough: Rifted Margins: Field Investigations of Margin Structure and Stratigraphy

D. R. Hutchinson, J. A. Grow, K. D. Klitgord, B. A. Swift

AAPG Special Volumes

.... The two-layer crustal configuration agrees with the average oceanic crustal structure derived from a review of refraction data along the U.S. margin...

1982

The Tectonic Stress Field in Eastern Australia

S. Zhao, R. D. Müller

Petroleum Exploration Society of Australia (PESA)

.... Model assumptions We used a two-layer elastic model to simulate the response of the Australian continent to various tectonic forces. The use...

2001

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