Skip to Main Content

Seismic reflectivity of mylonite zones in the crust

David M. Fountain, Charles A. Hurich and Scott B. Smithson
Seismic reflectivity of mylonite zones in the crust
Geology (Boulder) (April 1984) 12 (4): 195-198


Deep fault zones are characterized by mylonitic rocks with strong preferred orientation of constituent minerals and retrograde mineral assemblages. Sonic velocities are consequently lower (for propagation directions normal to mylonite foliation) than in surrounding unmylonitized rocks. Synthetic seismograms computed for low-velocity, near-horizontal, thick mylonite zones of complex, laminated geometry show multicyclic reflections with amplitudes up to twice those generated by a single interface. Seismic characteristics of mylonite zones are sufficient to produce reflections in crystalline rocks.--Modified journal abstract.

ISSN: 0091-7613
EISSN: 1943-2682
Serial Title: Geology (Boulder)
Serial Volume: 12
Serial Issue: 4
Title: Seismic reflectivity of mylonite zones in the crust
Affiliation: Univ. Wyo., Dep. Geol. and Geophys., Laramie, WY, United States
Pages: 195-198
Published: 198404
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 34
Accession Number: 1984-027685
Categories: Seismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 1984
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal