Abstract
High helium‐3/helium‐4 ratios, up to 6.6Ratm (6.6 times the atmospheric ratio of 1.40 × 10−6) were observed in nine samples of gases and hot waters from seven sites located around the volcano Nevado del Ruiz, Colombia. The values of the ratio decrease with distance from the crater. Such a tendency coincides well with the pattern first reported from the volcano Ontake, central Japan, and suggests a general signature of helium isotope ratios around individual volcanoes. The corrected helium‐3/helium‐4 ratios at one gas vent sampled twice over six months increased. This is interpreted to mean that the mantle contribution of helium may have increased with time.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1035-1038 |
| Number of pages | 4 |
| Journal | Geophysical Research Letters |
| Volume | 14 |
| Issue number | 10 |
| DOIs | |
| State | Published - 1987 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Geophysics
- Earth and Planetary Sciences(all)
Cite this
Helium‐3 emission from Nevado Del Ruiz Volcano, Colombia. / Williams, Stanley; Sano, Yuji; Wakita, Hiroshi.
In: Geophysical Research Letters, Vol. 14, No. 10, 1987, p. 1035-1038.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Helium‐3 emission from Nevado Del Ruiz Volcano, Colombia
AU - Williams, Stanley
AU - Sano, Yuji
AU - Wakita, Hiroshi
PY - 1987
Y1 - 1987
N2 - High helium‐3/helium‐4 ratios, up to 6.6Ratm (6.6 times the atmospheric ratio of 1.40 × 10−6) were observed in nine samples of gases and hot waters from seven sites located around the volcano Nevado del Ruiz, Colombia. The values of the ratio decrease with distance from the crater. Such a tendency coincides well with the pattern first reported from the volcano Ontake, central Japan, and suggests a general signature of helium isotope ratios around individual volcanoes. The corrected helium‐3/helium‐4 ratios at one gas vent sampled twice over six months increased. This is interpreted to mean that the mantle contribution of helium may have increased with time.
AB - High helium‐3/helium‐4 ratios, up to 6.6Ratm (6.6 times the atmospheric ratio of 1.40 × 10−6) were observed in nine samples of gases and hot waters from seven sites located around the volcano Nevado del Ruiz, Colombia. The values of the ratio decrease with distance from the crater. Such a tendency coincides well with the pattern first reported from the volcano Ontake, central Japan, and suggests a general signature of helium isotope ratios around individual volcanoes. The corrected helium‐3/helium‐4 ratios at one gas vent sampled twice over six months increased. This is interpreted to mean that the mantle contribution of helium may have increased with time.
UR - http://www.scopus.com/inward/record.url?scp=84989592211&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84989592211&partnerID=8YFLogxK
U2 - 10.1029/GL014i010p01035
DO - 10.1029/GL014i010p01035
M3 - Article
AN - SCOPUS:84989592211
VL - 14
SP - 1035
EP - 1038
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 10
ER -