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Helium‐3 emission in and around Teide Volcano, Tenerife, Canary Islands, Spain
Author(s) -
Pérez Nemesio M.,
Nakai Shun'ichi,
Wakita Hiroshi,
Hernández Pedro A.,
Salazar José M.
Publication year - 1996
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/96gl03470
Subject(s) - stratovolcano , volcano , geology , subduction , impact crater , mantle (geology) , seismology , helium , tectonics , geophysics , lava , physics , atomic physics , astronomy
Air corrected ³He/ 4 He ratios of fluid samples collected in and around Teide volcano, Tenerife, Canary Islands, ranged from 5.97 to 8.06 Ra. Helium‐3 emission spatial distribution has a quite different pattern from other stratovolcanoes which show commonly a decreased trend for the ³He/ 4 He ratio with respect to distance from the summit crater. This finding might be related to the volcano‐tectonic setting differences between subduction‐type and oceanic island‐type statrovolcanoes. Radiogenic helium production is a significant process for the dilution of uprising derived‐mantle fluids in and around subduction‐type stratovolcanoes while it can be almost negligible for polygenetic volcanoes at oceanic islands.

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