10:15 AM - 10:30 AM
[SIT09-06] Lord Howe Rise Drilling: Deep stratigraphic record for the Cretaceous eastern Gondwana margin
Keywords:IODP, Lord Howe Rise, Chikyu, Cretaceous, Gondwana, Zealandia
Geoscience Australia and JAMSTEC are leading an international effort to promote an IODP project (871-CPP) to drill a deep stratigraphic hole through a LHR rift basin using D/V CHIKYU that will recover Cretaceous and older sediments and basement rocks. The objectives of this proposal are to: 1) define the role and importance of continental crustal ribbons, like the LHR, in plate tectonic cycles and continental evolution; 2) recover new high-latitude data in the southwest Pacific to better constrain Cretaceous paleoclimate and linked changes in ocean biogeochemistry; and 3) test fundamental evolutionary concepts for sub-seafloor microbial life over a 100-million-year timeframe.