Abstract
Exhumed, sub-aqueous sulfur mounds occur in the Waiotapu geothermal area, New Zealand. The extinct mounds are <2 m high and composed of small (<0.5 cm) hollow spheres, and occasional teardrop-shaped globules. They are located within a drained valley that until recently was connected to Lake Whangioterangi. They were formed a maximum of 820 ± 80 years BP as a result of the rapid sub-aqueous deposition of sulfur globules, formed when fumarolic gases discharged through molten sulfur pools. Similar globules are now being formed by the discharge of fumarolic gases through a sub-aqueous molten sulfur pool in Lake Whangioterangi.
Original language | English (US) |
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Pages (from-to) | 729-738 |
Number of pages | 10 |
Journal | Geothermics |
Volume | 28 |
Issue number | 6 |
DOIs | |
State | Published - Dec 1999 |
Keywords
- Fumaroles
- Globules
- New Zealand
- Sulfur
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Geotechnical Engineering and Engineering Geology
- Geology