Basalts from Mururoa, Fangataufa and Gambier islands (French Polynesia): Geochemical dependence on the age of the lithosphere

Computer Science

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

15

Scientific paper

Basaltic volcanics from Mururoa, Fangataufa and Gambier islands, which belong to the Pitcairn island chain, have been studied for trace elements and Sr, Nd and Pb isotopic composition. While the trace element ratios remain constant, the 87Sr/86Sr ratios range from 0.70292 to 0.70367, 143Nd/144Nd ranges from 0.51303 to 0.51288 and the 206Pb/204Pb isotopic composition ranges from 18.99 to 19.62. These values, which are clearly distinct from those of Pitcairn basalts, vary according to distance from the present hot spot and are correlated with the age of the underlying lithosphere. It is suggested that the basalts studied were produced by variable degrees of partial melting from an oceanic lithospheric plate metasomatized by prior passage over the Easter hot spot.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Basalts from Mururoa, Fangataufa and Gambier islands (French Polynesia): Geochemical dependence on the age of the lithosphere does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Basalts from Mururoa, Fangataufa and Gambier islands (French Polynesia): Geochemical dependence on the age of the lithosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Basalts from Mururoa, Fangataufa and Gambier islands (French Polynesia): Geochemical dependence on the age of the lithosphere will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1853202

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.