High precision lead isotope systematics of lavas from the Hawaiian Scientific Drilling Project

Author:

Abouchami, W., Galer, S.J.G., Hoffmann, A.W.

Title:

High precision lead isotope systematics of lavas from the Hawaiian Scientific Drilling Project

Periodical:

Chemical Geology

Year:

2000

Volume:

169

Pages:

187-209

Subject:

Hawaii Scientific Drilling Project Hawaiian plume Isotopes Lava analysis Mauna Kea volcano Mauna Loa volcano

Summary:

The Hawaiian plume that is centered between the volcanoes of Mauna Loa, Kilauea, and Loihi seamount, produces lavas with a variety of isotopic compositions. In principle, these variations are important in understanding the origin and how these components came to be incorporated in the Hawaiian plume source. There are several features of the published radio-genic isotope data that now seem to be confirmed regarding the temporal evolution at a single location, the spatial variation, and the number of specific source components that are involved in the Hawaiian plume. Lead isotopic compositions of Hawaiian lavas may provide the maximum amount of information on the age and origin of source components present in the Hawaiian plume. In this study, high precision Pb isotope data is presented on the lava produced by Mauna Loa and Mauna Kea that came from the Hilo drill hole that was drilled by the preliminary phase of the Hawaiian Scientific Drilling Project.

Label:

Geology

URL:

http://cletus.uhh.hawaii.edu:2074/10.1016/S0009-2541(00)00328-4

Date:

August 2000

Collection:

Periodicals