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Outcrops and well logs as a practicum for calibrating the accuracy of traveltime tomograms

Sherif M. Hanafy, Ann Mattson, Ronald L. Bruhn, Shengdong Liu and Gerard T. Schuster
Outcrops and well logs as a practicum for calibrating the accuracy of traveltime tomograms (in Geophysical imaging and interpretation of outcrops, Anonymous)
Interpretation (Tulsa) (August 2015) 3 (3): SY27-SY40

Abstract

We have developed two case studies demonstrating the use of high-resolution seismic tomography and reflection imaging in the field of paleoseismology. The first study, of the Washington fault in southern Utah, USA, evaluated the subsurface deposits in the hanging wall of the normal fault. The second study, of the Mercur fault in the eastern Great Basin of Utah, USA, helped to establish borehole locations for sampling subsurface colluvial deposits buried deeper than those previously trenched along the fault zone. We evaluated the seismic data interpretations by comparison with data obtained by trenching and logging deposits across the Washington fault, and by drill-core sampling and video logging of boreholes penetrating imaged deposits along the Mercur fault. The seismic tomograms provided critical information on colluvial wedges and faults but lacked sufficient detail to resolve individual paleoearthquakes.


ISSN: 2324-8858
EISSN: 2324-8866
Serial Title: Interpretation (Tulsa)
Serial Volume: 3
Serial Issue: 3
Title: Outcrops and well logs as a practicum for calibrating the accuracy of traveltime tomograms
Title: Geophysical imaging and interpretation of outcrops
Affiliation: King Abdullah University of Science and Technology, Center for Subsurface Imaging and Fluid Modeling, Thuwal, Saudi Arabia
Pages: SY27-SY40
Published: 201508
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 20
Accession Number: 2015-073871
Categories: Applied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. block diag., sects., 1 table, sketch maps
N35°00'00" - N43°00'00", W120°00'00" - W111°00'00"
N37°00'00" - N42°00'00", W114°04'60" - W109°04'60"
Secondary Affiliation: University of Utah, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 201532
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