The present configuration of the Bouvet triple junction

New Hawaii-MRI sonar data show that the southernmost Mid-Atlantic Ridge joins the South American-Antarctic Ridge by an obliquely opening rift and overlaps Spiess Ridge, the westernmost segment of the Southwest Indian Ridge, with no evidence for a transform fault. The junction is therefore neither ri...

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Bibliographic Details
Main Authors: Mitchell, N. C., Livermore, R. A.
Format: Article in Journal/Newspaper
Language:English
Published: 1998
Subjects:
Antarctic
Indian
Mid-Atlantic Ridge
Bouvet
Antarc*
Online Access:https://research.manchester.ac.uk/en/publications/0cbedbd1-d065-4bf6-aa40-e9b5b20ae219
https://doi.org/10.1130/0091-7613(1998)026<0267:TPCOTB>2.3.CO;2
http://://000072436000019
Description
Summary:New Hawaii-MRI sonar data show that the southernmost Mid-Atlantic Ridge joins the South American-Antarctic Ridge by an obliquely opening rift and overlaps Spiess Ridge, the westernmost segment of the Southwest Indian Ridge, with no evidence for a transform fault. The junction is therefore neither ridge-fault-fault nor ridge-ridge-ridge. We speculate that growth of Spiess Ridge adjacent to the triple junction has caused this complexity and discuss more generally the origins of distributed deformation of oceanic triple junctions.

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