Easter 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 microplate has evolved in two stages. The first is from 5.25 to around 2.5 million years ago, and involved continuous northward propagation of the East Rift, while the West Rift became segmented along new transform faults as it adjusted to keep the overall Nazca-Pacific velocities constant. The transpressive northern boundary migrated with the East Rift tip, while the transtensional southern boundary remained more or less still. At some time after 2.5 million yars ago the East Rift ceased northward propagation and the Southwest Rift began to open up along the transtensional Pacific-Easter transform fault. A convergent northern boundary formed involving southward thrusting of the Nazca plate over the microplate. No further Nazca plate lithosphere was transferred from north of the microplate interior, and the Pito Deep region opened by pervasively rifting apart preexisting Nazca plate lithosphere.

Easter plate treated in Olelog

p.m.

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