Rock Coring Koolau Volcano
Mantle plumes produce basalts which provide fundamental information on the composition and history of the mantle. The Hawai'ian plume is the classic example of a mantle plume and its basalts are unquestionably the best studied suite from any plume.
The subaerially exposed lavas of Koolau Volcano belong to the Enriched Mantle1 endmember of ocean island basalts and they define a geochemical endmember among Hawai'ian shield lavas in major and trace elements and in isotopes. Koolau lavas are important to an understanding of the origin and evolution of the Hawai'ian plume and the mantle. In particular, Koolau lavas appear to provide the strongest evidence for deep mantle recycling of crust (sediments and basalt), although this interpretation remain controversial and is based on sampling only the uppermost veneer of the volcano. It is important to establish the longevity of the distinctive Koolau geochemical signature by sampling deeper and older lavas from the volcano. If there were basaltic and sedimentary components in the Hawai'ian plume, were they restricted to the final stages of Koolau volcano´s growth? Scientific drilling will allow us to answer this question by obtaining lavas from subsurface of this enigmatic volcano.
Pacific, U.S.A., United States of America, Hawai'i, Oahu, Honolulu, Koolau
21° 20' 39.36'' N, 157° 52' 22.36'' W (Please scroll down to end of page for more information.)
Project Start and End
- Begin of drilling April 19, 2000
- End of drilling May 25, 2000
Programs and Funding
- International Continental Scientific Drilling Program
- U.S. National Science Foundation
- U.S. Universities
- Michael O. Garcia, University of Hawai'i at Honolulu, Department of Geology and Geophysics
Cooperating Principal Investigators
No Co-PIs found for this project
Partners and Contractors
- California Institute of Technology
- Carnegie Institution for Science of Washington
- DOSECC, Inc.
- German Research Centre for Geosciences, Section 6.4, Centre for Scientific Drilling, (Operational Support Group OSG/ICDP)
- Massachusetts Institute of Technology
- Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences
- Max-Planck-Institute Mainz for Chemistry
- Tokyo Institute of Technology
- University of California at Berkeley
- University of Hawai'i at Honolulu, Department of Geology and Geophysics
- Woods Hole Oceanographic Institution
Coring, Drilling, Hf Isotopes, High Resolution, HSDP, ICDP-1999/13, Icp-ms, KOOLAU, Mantle Plume, Periodicity, Recycling, Source Character, Thermal Regimes, Trace Elements, U.S.A., Volcanic Systems, Volcanics
|Daily News from Sites|
depth 5912.59m,well logging
Image of the day.
For contact information about the ICDP members please select the first letter of the name from the list below.
To see the full information or update your personal data you must login first.