A sea-floor monitoring experiment observed oceanic crust being created between two tectonic plates — the first in situ measurement of this phenomenon.

A sea-floor monitoring experiment observed oceanic crust being created between two tectonic plates — the first in situ measurement of this phenomenon.

By combining hydroacoustic, direct-path ranging and bottom-pressure measurements, in situ observations of a rifting event at a segment of the Southeast Indian Ridge are reported,…