Upper mantle electrical conductivity in the Himalayan region

Arora, B.R.; Campbell, W.H.; Schiffmacher, E.R.

dc.contributor.author	Arora, B.R.
dc.contributor.author	Campbell, W.H.
dc.contributor.author	Schiffmacher, E.R.
dc.date.accessioned	2015-04-25T07:27:30Z
dc.date.accessioned	2021-02-12T10:41:13Z
dc.date.available	2015-04-25T07:27:30Z
dc.date.available	2021-02-12T10:41:13Z
dc.date.issued	1995
dc.identifier.citation	J. Geomag. Geoelectr., v.47, p.653-665,1995
dc.identifier.uri	http://localhost:8080/xmlui/handle/123456789/27
dc.description.abstract	The electrical conductivity profile of the Earth at depths of about 50 to 500 km was determined using the quiet ionospheric current variations observed at a line of stations near 75° East longitude. We found conductivity values of about 0.06 S/m from 50 to approximately 350 km depth with slight relative maxima near 125 and 275 kin, interpersed by relative minima near 210 and 330 km. Thereafter, the conductivity increased sharply toward a value of about 0.18 S/m at 500 km with no indication of leveling off. A comparison with regional seismic wave-velocity models shows good correspondence between high conductivity and low-velocity zones. The conduction by hydrogen-saturated pyroxene is envisaged as a possible mechanism for the high conductivity and its variation in the upper mantle.	en_US
dc.language.iso	en	en_US
dc.publisher	J. Geomag. Geoelectr., v.47, p.653-665,1995.	en_US
dc.subject	Electrical conductivity	en_US
dc.title	Upper mantle electrical conductivity in the Himalayan region	en_US
dc.type	Article	en_US
dc.identifier.accession	090511