Increased Transport of Antarctic Bottom Water in the Vema Channel During the Last Ice Age

Particle size analyses of surface sediments in the Vema Channel reveal a spatial variation related to the present hydrography. Similar analyses of sediment deposited during the last ice age (18,000 years before the present) indicate a maximum shallowing of the upper limit of Antarctic Bottom Water (...

Full description

Bibliographic Details
Published in:Science
Main Authors: Ledbetter, Michael T., Johnson, David A.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1976
Subjects:
Antarctic
Antarc*
Online Access:http://dx.doi.org/10.1126/science.194.4267.837
https://www.science.org/doi/pdf/10.1126/science.194.4267.837
Description
Summary:Particle size analyses of surface sediments in the Vema Channel reveal a spatial variation related to the present hydrography. Similar analyses of sediment deposited during the last ice age (18,000 years before the present) indicate a maximum shallowing of the upper limit of Antarctic Bottom Water (AABW) of about 100 meters, coupled with an increase in velocity, which resulted in an increase in AABW transport.

Similar Items