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A seismic reflection map of the Hikurangi trench taken from JOIDES Resolution

Seismic reflection map of Hikurangi trench taken on JOIDES Resol

This seismic reflection map is similar to an ultrasound and shows scientists the inside of the Earth as a cross-section. The black line at U1518 is the first drill site for expedition #375 on board JOIDES Resolution. The line shows how deep the drill went – it crosses the red fault that stretches up to the seafloor. By drilling here, scientists can pull up sediment directly from the fault zone to study.

Rights: The International Ocean Discovery Program, Aliki Weststrate
Published: 28 March 2018Size: 767.56 KB