TY  - JOUR
PY  - 1979//
TI  - Helium/Carbon dioxide ratios as premonitors of volcanic activity
JO  - Science
A1  - Thomas, D. M.
A1  - Naughton, J. J.
SP  - 1195
EP  - 1196
VL  - 204
IS  - 4398
N2  - The composition of the gaseous emissions of two fumaroles at the summit of Kilauea Volcano was monitored for môre than 2 years. Magma was released from the summit reservoir on three occasions during this period; prior to or during each event the ratios of helium to carbon dioxide in the fumarole gases decreased substantially from that observed during periods of quiescence.<p /> <p>Language: en</p>
LA  - en
SN  - 0036-8075
UR  - http://dx.doi.org/10.1126/science.204.4398.1195
ID  - ref1
ER  -