All Digital Items

Depiction of how the Gulf Stream has been changing over years.

Mid-Atlantic Ridge emerges as the South American and African plates pull apart.

Procedure for installing the borehole seismic system in an existing borehole.

Autonomous seafloor data recording package for the borehole seismometer.

Ocean Drilling Program Site 843B (red dot), also called OSN-1, near Hawaii.

Comparisons of ambient noise spectra.

20 regions for locating possible seafloor seismic observatories.

Ambient noise spectrum showing magnitude of earth's vibration.

Borehole seismometer loaded onto R/V Thomas G. Thompson.

Three seismic traces showing the vertical vibration of the earth.

Five-meter bathymetric map of Atlantis Bank.

Hypothetical model for the unroofing and uplift of Atlantis Bank.

Location of Atlantis Bank, Indian Ocean.

Henry Dick standing next to the Canadian ROV ROPOS.

Fossil ripple marks indicate where Atlantis Bank beach sands have hardened.

An outcrop of layered gabbros is exposed on a wave cut bench.

Seafloor photograph of Atlantis Bank shows a wave-cut outcrop of gabbro.

A pothole on a wave cut ledge of Atlantis Bank contains a pebble.