The University of Southampton
University of Southampton Institutional Repository

Near-field variability of the TAG non-buoyant plume, 26°N, Mid-Atlantic Ridge

Rudnicki, M.D., James, R.H. and Elderfield, H. (1994) Near-field variability of the TAG non-buoyant plume, 26°N, Mid-Atlantic Ridge Earth and Planetary Science Letters, 127, (1-4), pp. 1-10. (doi:10.1016/0012-821X(94)90193-7).

Record type: Article


We report the initial results of a nine hour monitoring of the non-buoyant plume above the TAG hydrothermal vent field at 26°N on the Mid-Atlantic Ridge. A CTD (conductivity, temperature and pressure) and nephelometer (particle sensor) were continuously raised and lowered through the non-buoyant plume for nine hours at a site situated ? 100 m south of the hydrothermal mound. This method permits a detailed record of the variability of the non-buoyant plume close to the vent field to be made. Our results show that the particulate maximum of the non-buoyant plume appears ? 150 m lower in the water column at the start and end of the record, compared with profiles recorded towards the middle of the record. A corresponding structure also appears in the temperature and salinity records, with the result that the plume particle maximum resides on the ?? ? 27.8035 isopycnal throughout. Modelling of the rise height of an axisymmetric plume can only account for ? 95 m of the variability in the final level of neutral buoyancy. Plume bending due to currents is a likely explanation for the recorded temporal variability.

Full text not available from this repository.

More information

Published date: 1994
Organisations: Marine Geoscience


Local EPrints ID: 210305
ISSN: 0012-821X
PURE UUID: 85ae198c-93f4-430b-9dda-1c50435149e0

Catalogue record

Date deposited: 07 Feb 2012 14:07
Last modified: 18 Jul 2017 10:45

Export record



Author: M.D. Rudnicki
Author: R.H. James
Author: H. Elderfield

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.