Faulting in Deccan Traps in the vicinity of Koyna-Warna Seismic Zone

Faulting in Deccan Traps in the vicinity of Koyna-Warna Seismic Zone

Studies of sustained activity in the Koyna — Warna Seismic Zone have yielded several models of faults in the basement of the Deccan Traps inferred from geophysical and seismic signatures. There is however, a dearth of unambiguous surface manifestations of such faults, apart from the surface ruptures...

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Veröffentlicht in:Journal of the Geological Society of India 2017-12, Vol.90 (6), p.748-751
Hauptverfasser: Bhave, Neha, Imran Siddique, M., Desai, Jayesh, Pillai, Shilpa Patil, Dole, Gauri, Kulkarni, Himanshu, Kale, Vivek S.
Format: Artikel
Sprache:eng
Schlagworte:
Basalt
Earth and Environmental Science
Earth Sciences
Earthquakes
Fault lines
Faults
Geological faults
Geology
Geophysics
Hydrogeology
Seismic activity
Seismic analysis
Seismic zones
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Beschreibung
Zusammenfassung:Studies of sustained activity in the Koyna — Warna Seismic Zone have yielded several models of faults in the basement of the Deccan Traps inferred from geophysical and seismic signatures. There is however, a dearth of unambiguous surface manifestations of such faults, apart from the surface ruptures from the epicentral zone of the December, 1967 earthquake. We report for the first time, an exposed NW-SE trending reverse fault in the Deccan Trap basalts from this region.
ISSN:0016-7622
0974-6889
DOI:10.1007/s12594-017-0786-5