He-3 in Indonesian Seas: Inferences on deep pathways

Publication Type: 
Year of Publication: 
1997
Journal Title: 
Geophysical Research Letters
Journal Date: 
Mar 1
Volume: 
24
Issue: 
5
Pages: 
547-550
ISBN Number: 
0094-8276
Accession Number: 
ISI:A1997WL74200014
Abstract: 

Helium isotope measurements from the Indonesian Seas, and from the Java-Australia Dynamic Experiment cruises define mantle He-3 sources and deep water spreading patterns. He-3 sources in the Sulawesi Sea and in the Makassar Strait are found, but these are prevented from spreading into the Banda Sea and the Indian Ocean by blocking sills. A major mantle source is identified below 2000m in the Flores Sea. The He-3 distribution suggests that the Banda Sea water migrates westward along the floor of the Flores Sea, upwells and then advects the high He-3 Flores signal. A tongue of higher-than-ambient He-3 on the Indian Ocean side of the Flores chain indicates a deep outflow of the Flores and the Banda Sea water into the Indian Ocean near 1300m.

Notes: 

Wl742Times Cited:6Cited References Count:15