ISSN:
1420-9136
Keywords:
Key words: Narmada-Son Lineament, lower crust, layering.
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract —Comparison of deep seismic sounding (DSS) results of different profiles across the Narmada-Son Lineament (NSL), India indicates the anomalous nature of the crust along the Ujjain-Ma han profile. Forward travel time and synthetic seismogram modeling, using normalized record sections of refraction and wide angle reflection data acquired along the Ujjain-Mahan deep seismic sounding profile across NSL, brings into focus the presence of high velocity (7.0–7.3 km/s) subhorizontal layers from a depth of 8–12 km down to Moho. The tectonic implication of such reflections (layering in the crust) is discussed. The two fault zones, reported by earlier workers, flanking the rift might have acted as feeders for the mantle material to intrude into the middle and lower crustal columns.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s000240050039
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