Juan Fernandez Plate
My Blogs (olelog) are mainly based on my daily reading of earth science news. Here on whatonearth.olehnielsen.dk I try to weave some of the pieces together to a greater whole with added background info.

The Juan Fernandez Microcontinent (or plate).

Prior to the microplate, the East Pacific Rise at the Pacific-Antarctic-Nazca triple junction was offset by a long transform fault zone. The microplate originated from an intra-transform setting between 5.95 and 5.24 million years ago. Its early development resembled a large propagating rift system, and microplate core structures suggest the entire offset zone may have experienced deformation. Fast propagation of the East Ridge dominated microplate growth until ~2.6-1.9 million years ago, when seafloor spreading became the dominant
growth process.

Jaun Fernandez plate treated in Olelog

p.m.

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