Dissolved and particulate trace metals in hydrothermal plumes at the Mid‐Atlantic Ridge


James, R.H. and Elderfield, H. (1996) Dissolved and particulate trace metals in hydrothermal plumes at the Mid‐Atlantic Ridge. Geophysical Research Letters, 23, (23), 3499-3502. (doi:10.1029/96GL01588).

Download

Full text not available from this repository.

Description/Abstract

Seawater samples from the non‐buoyant plume have been collected at the TAG (26°N) and Snakepit (23°N) hydrothermal sites on the Mid‐Atlantic Ridge (MAR), and analysed for dissolved (<0.4 µm) and particulate (>0.4 µm) trace metals. Up to 50% of vent fluid Fe is present in the <0.4 µm fraction in the non‐buoyant plume. Increases in particulate concentrations of Cd are accompanied by a reduction in dissolved Cd to levels below ambient seawater. We show that dissolved Cd is scavenged from seawater in the buoyant section of the plume while Cd re‐dissolves from the particles in the non‐buoyant plume. Up to 43% of hydrothermally injected Cu is found in the <0.4 µm fraction in the non‐buoyant plume.

Item Type: Article
ISSNs: 0094-8276 (print)
Subjects: G Geography. Anthropology. Recreation > GC Oceanography
Q Science > QD Chemistry
Q Science > QE Geology
Divisions: National Oceanography Centre (NERC) > Marine Geoscience
ePrint ID: 210255
Date Deposited: 07 Feb 2012 12:05
Last Modified: 27 Mar 2014 19:50
URI: http://eprints.soton.ac.uk/id/eprint/210255

Actions (login required)

View Item View Item