Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004geoji.156..255t&link_type=abstract
Geophysical Journal International, Volume 156, Issue 2, pp. 255-266.
Astronomy and Astrophysics
Astronomy
30
Central Zagros, Microearthquakes, Tectonics
Scientific paper
Microearthquakes in Central Zagros, recorded for 7 weeks in 1997, lie in a ~6-8 km zone that is likely located beneath 11 km of sediments. They are not located on an active décollement between the sediments and the crystalline crust, but rather define a pattern of NNW-SSE trending lineaments parallel to the fold axes observed at the surface. The spacing between the seismic lineaments is ~15-20 km and therefore different from that between the folds (~10-15 km), which suggests that there is not a simple relationship between the two. Fomechanisms and precise relative locations are consistent with NW-SE striking reverse faulting connected by NNW-SSE striking right lateral strike-slip faults. The dip of the reverse faults is not certain but is likely NE for the northernmost faults. The strain pattern deduced from the P-axes is remarkably similar to the shortening deduced from GPS-based geodesy suggesting that microearthquakes are the response of the prefractured brittle crust to strain rather than localized on single active faults.
Ghafory-Ashtiany Mohsen
Hatzfeld Denis
Tatar Mohammad
No associations
LandOfFree
Tectonics of the Central Zagros (Iran) deduced from microearthquake seismicity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Tectonics of the Central Zagros (Iran) deduced from microearthquake seismicity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tectonics of the Central Zagros (Iran) deduced from microearthquake seismicity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1019207