Hydrothermal scavenging of rare-earth elements in the ocean

Details Hydrothermal scavenging of rare-earth elements in the ocean Hydrothermal scavenging of rare-earth elements in the ocean

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990natur.345..516g&link_type=abstract

Nature, Volume 345, Issue 6275, pp. 516-518 (1990).

Other

26

Scientific paper

SUSPENDED participate samples collected from the TAG hydrothermal vent field, at 26° N on the Mid-Atlantic Ridge, contain ~10% of the total rare-earth element content (by volume) of ambient sea water. Shale-normalized distribution patterns show both positive europium anomalies and negative cerium anomalies, indicating that the rare-earth elements in these hydrothermal precipitates come from both hydrothermal vent fluid and seawater sources. Rare-earth/Fe concentration ratios in the suspended p articulate material increase at increasing distances from their hydro-thermal source, indicating that rare-earth elements must be continuously extracted from sea water as hydrothermal precipitates are dispersed through the water column. Therefore, although high-temperature vent fluids escaping from the sea floor are typically enriched 10-10,000 times in rare-earth elements relative to sea water1-4, hydrothermal systems must nevertheless act as a net sink in the global ocean budget of the rare-earth elements. But as the maximum rare-earth/Fe ratios observed for suspended particles are ~10 times lower than previously reported values for hydrothermal sediments5-8, it seems that most of the uptake of rare-earth elements from sea water must occur only after hydrothermal precipitates have settled to the underlying sediments.

Affiliated with

Also associated with

No associations

Rating

Hydrothermal scavenging of rare-earth elements in the ocean does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hydrothermal scavenging of rare-earth elements in the ocean, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrothermal scavenging of rare-earth elements in the ocean will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-988274