Radiogenic 4He, 21Ne and 40Ar in fumarolic gases on Vulcano: implication for the presence of continental crust beneath the island

Details Radiogenic 4He, 21Ne and 40Ar in fumarolic gases on Vulcano: implication for the presence of continental crust beneath the island Radiogenic 4He, 21Ne and 40Ar in fumarolic gases on Vulcano: implication for the presence of continental crust beneath the island

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996e%26psl.144..517t&link_type=abstract

Earth and Planetary Science Letters, Volume 144, Issue 3-4, p. 517-528.

Computer Science

7

Scientific paper

From December 1991 to January 1993, 15 gas samples were collected from different fumaroles on the island of Vulcano (Aeolian archipelago), one of the most active volcanoes in Italy, actually in a quiescent phase, and then analysed for noble gas composition. Data on the F5 fumarole showed a large fluctuation, with a peak around November 1992. The oscillation is explained with continuous degassing of different sources: deep and more superficial. Enhanced contribution of radiogenic21 Ne to the crater and beach fumarolic gases were accompanied by an increase in both radiogenic 4He and40 Ar. Remarkably, constant 21Ne/4He and 4He/40Ar ratios appeared to have been unchanged for more than a year. These observations, especially concerning the radiogenic 21Ne, suggest a deep-seated old continental crust beneath the volcano as a source of these radiogenic noble gases. Two possibilities are taken into consideration: thermo-metamorphic sedimentary formations located at the base of the volcano and/or the subducted African continental plate beneath the European plate causing the so-called subduction-type volcanism in the Aeolian islands (southern Italy).

Affiliated with

Also associated with

No associations

Rating

Radiogenic 4He, 21Ne and 40Ar in fumarolic gases on Vulcano: implication for the presence of continental crust beneath the island 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 Radiogenic 4He, 21Ne and 40Ar in fumarolic gases on Vulcano: implication for the presence of continental crust beneath the island, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiogenic 4He, 21Ne and 40Ar in fumarolic gases on Vulcano: implication for the presence of continental crust beneath the island will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1147368