Ferrobasalts from the Central Indian Ocean Basin
Document Type
Article
Publication Date
12-1998
Department
Department of Materials Science and Engineering
Abstract
We report the occurrence of ferrobasalts recovered from the Central Indian Ocean Basin crust generated at the Southeast Indian Ridge during a phase of moderate to fast spreading accretion (~110-190 mm/yr, full rate). The rocks are rich in plagioclase, FeO(*) (13-19%), and TiO2 (2.27-2.76%), poor in olivine and MgO (3.44-6.20%), and associated with topographic highs and increased amplitude magnetic anomalies corresponding to chrons A25 and A24. We suggest that secondary eruptions from ancient N-MORB magma, which may have been trapped at a shallow depth in a horizon of neutral buoyancy, could have produced the ferrobasalts.
Publication Title
Geo-Marine Letters
Recommended Citation
Iyer, S.,
Mukhopadhyay, R.,
&
Popko, D.
(1998).
Ferrobasalts from the Central Indian Ocean Basin.
Geo-Marine Letters,
18(4), 297-304.
http://doi.org/10.1007/s003670050083
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/4708
