Evidence from hafnium isotopes for ancient sub-oceanic mantle beneath the Rio Grande rift

Details Evidence from hafnium isotopes for ancient sub-oceanic mantle beneath the Rio Grande rift Evidence from hafnium isotopes for ancient sub-oceanic mantle beneath the Rio Grande rift

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993natur.362..441j&link_type=abstract

Nature (ISSN 0028-0836), vol. 362, no. 6419, p. 441-444.

Computer Science

18

Chemical Composition, Earth Mantle, Hafnium Isotopes, Ocean Bottom, Basalt, Geochemistry, Rio Grande (North America)

Scientific paper

It is reported that basalts derived from upwelling asthenosphere in the region of the Rio Grande rift have Nd and Hf isotope ratios that lie significantly off the ocean-island Nd-Hf array. The low Hf-176/Hf-177 ratios in these basalts are interpreted here as reflecting derivation from ancient asthenospheric mantle that melted at shallow levels beneath the oceans. Hafnium isotopes is continental basalts may thus provide evidence for large-scale overriding by continents of suboceanic mantle.

Affiliated with

Also associated with

No associations

Rating

Evidence from hafnium isotopes for ancient sub-oceanic mantle beneath the Rio Grande rift 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 Evidence from hafnium isotopes for ancient sub-oceanic mantle beneath the Rio Grande rift, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence from hafnium isotopes for ancient sub-oceanic mantle beneath the Rio Grande rift will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1373724