The objectives of this leg are (i)to complete a study of the structure
and tectonic history of Molokai fracture zone that was started last
year with a Seabeam 2112 survey. This time we will use the new Simrad
EM-120 sonar to augment the multibeam coverage, and collect magnetic
profiles to date the crust each side of the several strands of this
complex fracture zone.
and (ii)to introduce the graduate students
of SIO Class240 (Marine Geology) to marine geophysical surveying by
taking them on this short leg and involving them in the collection,
processing and geological interpretation of the underway data (multi-
beam bathymetry, reflectivity, magnetics, acoustic profiling).
The track is planned to go via the following waypoints (subject to
modification based on results of REVELLE's February 2001 San Diego
to Hilo transit through the same area):
1. Hilo, Hawaii
2. 22deg.00'N, 151deg.00'W
3. 24d.00'N,141d.00'W
4. 24d.00'N,137d.00'W
5. 25d.20'N,136d.20'W
6. 26d.00'N,131d.00'W
7. San Diego
Scientific party will be:(a)Lonsdale, 2 STS techs, and advanced graduate
student Eakins; (b)up to ~10 Scripps SIO240 graduate students