Computer Science
Scientific paper
Mar 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980e%26psl..47...65r&link_type=abstract
Earth and Planetary Science Letters, Volume 47, Issue 1, p. 65-74.
Computer Science
10
Scientific paper
Neodymium isotopic analyses have been measured on nine ophiolites and four orogenic lherzolites. ɛNd varies from +12 to +3 in the ophiolites and from +18 to +2 in the orogenic lherzolites. The majority of the analyses plot on a ɛNd-ɛSr correlation line as defined by Nd and Sr isotopic analyses of oceanic basalts. However, certain ophiolitic and lherzolitic samples exhibit high 87Sr/86Sr ratios and as such lie to the right of the correlation line towards seawater compositions.
From these data one can postulate several origins for ophiolites including that of mid-ocean ridges and ocean islands. If the orogenic lherzolites are interpreted as representative of the mantle occurring below active ridges a more complex model is required involving mantle heterogeneity and multi-episodic chemical fractionation starting prior to 2 Ga ago.
Allègre Claude J.
Richard Pierre
No associations
LandOfFree
Neodymium and strontium isotope study of ophiolite and orogenic lherzolite petrogenesis 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 Neodymium and strontium isotope study of ophiolite and orogenic lherzolite petrogenesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neodymium and strontium isotope study of ophiolite and orogenic lherzolite petrogenesis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1571633