La roche.

The spectacular granite outcrops of the Seychelles Islands in the central Indian Ocean were amongst the earliest examples cited by Alfred Wegener as evidence for his continental drift theory.[1] Ridge-plume interactions have been responsible for separating a thinned continental sliver from a large continent (India).[2]

The granites of the Seychelles microcontinent were emplaced 750 Ma, during the late Precambrian.[3][4][5][6] Thermally-induced rifting in the Somali Basin and transform rifting along the Davie fracture zone began in the late Permian 225 million years ago, with Gondwana supercontinent beginning to break up in the mid-Jurassic (about 167 million years ago) when East Gondwana, comprising Antarctica, Madagascar, India, and Australia, began to separate from Africa; East Gondwana then began to separate about 115-120 million years ago when India began to move northward.[5] The Seychelles then underwent two more stages of rifting to isolate it from Madagascar and India. Between 84-95 million years ago rifting separated Seychelles/India from Madagascar.