SCIROCCO: Seismic Imaging at the Central Indian Ridge: Structure and Formation of Oceanic Core Complexes
ACRONYM
SCIROCCO
Title
SCIROCCO: Seismic Imaging at the Central Indian Ridge: Structure and Formation of Oceanic Core Complexes
General information
Objectives of SCIROCCO project
The main target of cruise SO301 is a seismic image of the Central Indian Ridge in order to better understand structures and processes of magmatism and crustal extension.
At slow spreading ridges, phases of magmatic accretion alternate with phases of tectonic stretching and consequently faulting on different scales. The long-living large detachement faults lead to the formation of Oceanic Core Complexes (OCC), which represent exhumed lower crustal or upper mantle material being raised to the seafloor. Results will allow to validate competing conceptual OCC models by seismic imaging 鈥� the missing tool in order to resolve the crustal structure and fault system at depth. Faults are potential path颅ways for fluids which might develop to hydro颅thermal systems and mineral deposits in combination with magmatic heat sources. Here, we study the link between OCCs, fault systems and hydrothermal vents by seismic imaging.
The survey area at 25 掳S, 70 掳E is located at the Central Indian Ridge (CIR) directly north of the Rodriguez Triple Junction (RTJ), where three mid-ocean ridges meet (Central, Southwest, and Southeast Indian Ridge: CIR, SWIR, SEIR). The working area hosts a prominent OCC, which extends approximately 10 km by 20 km and rises 1500 m high, as well as active hydrothermal fields, including the well-known Kairei field.
Start
July, 2023
End
December, 2025
Funding (total)
-
Funding (黑料视频)
338000
Funding body / Programme
-
BMBF
/
Coordination
Bundesanstalt f眉r Geowissenschaften und Rohstoffe (BGR), Germany
Contact
Partners
Federal Institute for Geosciences and Natural Resources (BGR), Germany
