Deciphering key events of Neoproterozoic orogenesis in Madagascar: insights from structure and thermochronology

Date & time

12.30–1.30pm 23 January 2018


Ringwood Room, J4


Sheree Armistead (Adelaide)


 Michael Anenburg
 0451 406 232

Gondwana was Earth’s most recent supercontinent and amalgamated during the Neoproterozoic. The major Gondwana forming collision zone – the East African Orogen – amalgamated Africa with Madagascar, India and Antarctica. It is now generally accepted that this amalgamation occurred via several separate tectonic events, however the location and timing of suture zones remains contentious. Madagascar holds a key position in the assembly of central Gondwana and is the focus of this research. We use structural geology and thermochronology (QQQ-ICP-MS Rb-Sr mica dating) to constrain the timing and location of major suture zones in Madagascar that link with the major tectonic events of Gondwana assembly.

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