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| Momoh, Ekeabino; Cannat, Mathilde; Leroy, Sylvie. |
| Extensive outcrops of serpentinized peridotite in melt‐starved spreading corridors of the ultraslow easternmost Southwest Indian Ridge are hypothesized to be due to slip on successive long‐offset normal faults that alternate polarity (flip‐flop detachment faults). We investigate the nature of the oceanic crust which forms under these conditions, using seismic reflection data acquired during the SISMOSMOOTH 2014 cruise. Using 3‐D binning, the seismic profiles were binned elastically, while three of the profiles shot closely were merged into one to take advantage of the larger air gun source volume. Using a poststack imaging sequence, we observe several types of reflectors at crustal and infracrustal depths, in the axial valley and off‐axis. Correlating our... |
| Tipo: Text |
Palavras-chave: Detachment faulting; Ultra-slow spreading; Serpentinization. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00599/71124/69429.pdf |
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