Tag: plate tectonics

A Talk with Sean Solomon, Lamont-Doherty’s New Director

by | 9.21.2012 at 11:30am | 1 Comment
Sean Solomon

“The Observatory has remained a powerhouse in Earth science research and a very special place. The scientists here are true explorers—creative and fiercely independent.”

Rolling into Open Water in the Central Pacific

by | 12.5.2011 at 8:48pm
The Langseth at dock in Honolulu.  Bridge cabins/labs are to the right; waist-deck where OBS operations occur is in the center; and the large aft streamer platform is on the left.  Top center is the PSO observation tower, over 85 ft above the waterline.

We nicknamed our project NoMelt because we seek to characterize a mature, pristine oceanic plate far from its volcanic origin at a Mid-Ocean Ridge, and away from areas of pronounced volcanism and melting that subsequently alter the structure of the plate.  Our site in the central Pacific fits these scientific needs. However, one downside is [...]

Probing an Oceanic Plate

by | 11.30.2011 at 8:36am | 4 Comments
Google Earth map of the experiment (dubbed NoMelt) in the central Pacific Ocean basin.

Everything that we understand about the rhythms of the Earth’s surface – the slow growth of mountain chains, the creeping expansion of the ocean basins, the abrupt upheaval of a major earthquake, the explosive eruption of a volcano – is viewed through the context of plate tectonics.  This simple yet highly successful model for describing [...]