Drillsled adaptation to Tiburon
Lead Scientist: Debra Stakes
Lead Engineer: Mark Chaffey
Project Manager: Karen Salamy
Oceanic crust is created at mid-ocean ridges by a complex series of
melting and crystallization events that each leave their geochemical
signature in the major, trace or isotopic composition of the minerals that
comprise the crustal rocks. There has been little progress in actually
mapping exposures of lower oceanic crust due in part to the limitations of
existing submersibles and the inability to systematically collect samples
from outcrops to determine their lithology.
The MBARI Rock Coring system is the only proven technique by which
plutonic rocks can be systematically sampled to provide high-resolution
lithostratigraphic coverage and has been successfully deployed from ALVIN,
Ventana and ROPOS.
This project is to adapt the MBARI drillsled to Tiburon which
takes advantage of Tiburonís superior station-keeping qualities,
greater depth capabilities and wider geographical coverage compared to Ventana.
As a standard Tiburon toolsled it will become another sampling
arrow in the quiver of tools available to researchers during a cruise with
the "quick connect" interface design allowing it to be quickly
installed for individual dives.
In the process of modifying the drillsled system for Tiburon
every effort will be made to design the system to be compatible with other
similar ROV systems such as VICTOR, operated by the French research
institute for exploitation of the sea (IFREMER).