Abstract
Hydrothermal venting along the global mid-ocean ridge system plays a major role in cycling elements and energy between the Earth's interior and surface. We use the distribution of helium isotopes along an oceanic transect at 67S to identify previously unobserved hydrothermal activity in the Pacific sector of the Southern Ocean. Combining the geochemical information provided by the helium isotope anomaly with independent hydrographic information from the Southern Ocean, we trace the source of the hydrothermal input to the Pacific Antarctic Ridge south of 55°S, one of the major global mid-ocean ridge systems, which has until now been a blank spot on the global map of hydrothermal venting. We identify three complete ridge segments, a portion of a fourth segment and two isolated locations on the Pacific Antarctic Ridge between 145W and 175W (representing ∼540 km of ridge in total) as the potential source of the newly observed plume.
| Original language | English (US) |
|---|---|
| Article number | L05601 |
| Journal | Geophysical Research Letters |
| Volume | 37 |
| Issue number | 5 |
| DOIs | |
| State | Published - Mar 1 2010 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Geophysics
- Earth and Planetary Sciences(all)
Cite this
Mantle helium reveals Southern Ocean hydrothermal venting. / Winckler, Gisela; Newton, Robert; Schlosser, Peter; Crone, Timothy J.
In: Geophysical Research Letters, Vol. 37, No. 5, L05601, 01.03.2010.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Mantle helium reveals Southern Ocean hydrothermal venting
AU - Winckler, Gisela
AU - Newton, Robert
AU - Schlosser, Peter
AU - Crone, Timothy J.
PY - 2010/3/1
Y1 - 2010/3/1
N2 - Hydrothermal venting along the global mid-ocean ridge system plays a major role in cycling elements and energy between the Earth's interior and surface. We use the distribution of helium isotopes along an oceanic transect at 67S to identify previously unobserved hydrothermal activity in the Pacific sector of the Southern Ocean. Combining the geochemical information provided by the helium isotope anomaly with independent hydrographic information from the Southern Ocean, we trace the source of the hydrothermal input to the Pacific Antarctic Ridge south of 55°S, one of the major global mid-ocean ridge systems, which has until now been a blank spot on the global map of hydrothermal venting. We identify three complete ridge segments, a portion of a fourth segment and two isolated locations on the Pacific Antarctic Ridge between 145W and 175W (representing ∼540 km of ridge in total) as the potential source of the newly observed plume.
AB - Hydrothermal venting along the global mid-ocean ridge system plays a major role in cycling elements and energy between the Earth's interior and surface. We use the distribution of helium isotopes along an oceanic transect at 67S to identify previously unobserved hydrothermal activity in the Pacific sector of the Southern Ocean. Combining the geochemical information provided by the helium isotope anomaly with independent hydrographic information from the Southern Ocean, we trace the source of the hydrothermal input to the Pacific Antarctic Ridge south of 55°S, one of the major global mid-ocean ridge systems, which has until now been a blank spot on the global map of hydrothermal venting. We identify three complete ridge segments, a portion of a fourth segment and two isolated locations on the Pacific Antarctic Ridge between 145W and 175W (representing ∼540 km of ridge in total) as the potential source of the newly observed plume.
UR - http://www.scopus.com/inward/record.url?scp=77949308512&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77949308512&partnerID=8YFLogxK
U2 - 10.1029/2009GL042093
DO - 10.1029/2009GL042093
M3 - Article
AN - SCOPUS:77949308512
VL - 37
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 5
M1 - L05601
ER -