Absolute migration and the evolution of the Rodriguez Triple Junction since 75 Ma
The Rodriguez Triple Junction (RTJ) is a junction connecting three mid-ocean ridges in the Indian Ocean: the Southwest Indian Ridge (SWIR), the Central Indian Ridge (CIR) and the Southeast Indian Ridge (SEIR). The evolution of the RTJ has been studied extensively for the past 10 Ma and the triple ju...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.590.8949 2023-05-15T13:32:03+02:00 Absolute migration and the evolution of the Rodriguez Triple Junction since 75 Ma D. C. P. Masalu The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.8949 http://www.oceandocs.org/bitstream/1834/740/1/masalu_p87_94.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.8949 http://www.oceandocs.org/bitstream/1834/740/1/masalu_p87_94.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.oceandocs.org/bitstream/1834/740/1/masalu_p87_94.pdf text ftciteseerx 2016-01-08T13:31:13Z The Rodriguez Triple Junction (RTJ) is a junction connecting three mid-ocean ridges in the Indian Ocean: the Southwest Indian Ridge (SWIR), the Central Indian Ridge (CIR) and the Southeast Indian Ridge (SEIR). The evolution of the RTJ has been studied extensively for the past 10 Ma and the triple junction is believed to be largely a ridge-ridge-ridge (RRR) triple junction. However, due to the scarcity of data its configuration prior to that period is poorly understood. The migration of the RTJ in the hotspot reference frame, for the past 75 million years has been mapped, by reconstructing its traces on the three plates (African, Antarctic and Indian) to their former positions. The results show that the RTJ has migrated northeasterly at velocities varying from 10cm/yr at 70 Ma to 2.6cm/yr at 43 Ma and thereafter 3.6–3.8cm/yr, in a fairly straight-line trajectory, suggesting a stable configuration of the RTJ since its formation. Because the RRR triple junction is the most stable configuration that is possible, it is suggested that the configuration of the RTJ has been largely RRR triple junction since its formation. Text Antarc* Antarctic Unknown Antarctic Indian Rodriguez ENVELOPE(-56.720,-56.720,-63.529,-63.529) Southeast Indian Ridge ENVELOPE(110.000,110.000,-50.000,-50.000) |
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Unknown |
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ftciteseerx |
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English |
description |
The Rodriguez Triple Junction (RTJ) is a junction connecting three mid-ocean ridges in the Indian Ocean: the Southwest Indian Ridge (SWIR), the Central Indian Ridge (CIR) and the Southeast Indian Ridge (SEIR). The evolution of the RTJ has been studied extensively for the past 10 Ma and the triple junction is believed to be largely a ridge-ridge-ridge (RRR) triple junction. However, due to the scarcity of data its configuration prior to that period is poorly understood. The migration of the RTJ in the hotspot reference frame, for the past 75 million years has been mapped, by reconstructing its traces on the three plates (African, Antarctic and Indian) to their former positions. The results show that the RTJ has migrated northeasterly at velocities varying from 10cm/yr at 70 Ma to 2.6cm/yr at 43 Ma and thereafter 3.6–3.8cm/yr, in a fairly straight-line trajectory, suggesting a stable configuration of the RTJ since its formation. Because the RRR triple junction is the most stable configuration that is possible, it is suggested that the configuration of the RTJ has been largely RRR triple junction since its formation. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
D. C. P. Masalu |
spellingShingle |
D. C. P. Masalu Absolute migration and the evolution of the Rodriguez Triple Junction since 75 Ma |
author_facet |
D. C. P. Masalu |
author_sort |
D. C. P. Masalu |
title |
Absolute migration and the evolution of the Rodriguez Triple Junction since 75 Ma |
title_short |
Absolute migration and the evolution of the Rodriguez Triple Junction since 75 Ma |
title_full |
Absolute migration and the evolution of the Rodriguez Triple Junction since 75 Ma |
title_fullStr |
Absolute migration and the evolution of the Rodriguez Triple Junction since 75 Ma |
title_full_unstemmed |
Absolute migration and the evolution of the Rodriguez Triple Junction since 75 Ma |
title_sort |
absolute migration and the evolution of the rodriguez triple junction since 75 ma |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.8949 http://www.oceandocs.org/bitstream/1834/740/1/masalu_p87_94.pdf |
long_lat |
ENVELOPE(-56.720,-56.720,-63.529,-63.529) ENVELOPE(110.000,110.000,-50.000,-50.000) |
geographic |
Antarctic Indian Rodriguez Southeast Indian Ridge |
geographic_facet |
Antarctic Indian Rodriguez Southeast Indian Ridge |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
http://www.oceandocs.org/bitstream/1834/740/1/masalu_p87_94.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.8949 http://www.oceandocs.org/bitstream/1834/740/1/masalu_p87_94.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766023844382900224 |