Submarine basalts from the Red Sea - New Pb, Sr, and Nd isotopic data

Details Submarine basalts from the Red Sea - New Pb, Sr, and Nd isotopic data Submarine basalts from the Red Sea - New Pb, Sr, and Nd isotopic data

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20..927v&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 10, p. 927-930.

Physics

10

Basalt, Lead Isotopes, Neodymium Isotopes, Ocean Bottom, Sea Floor Spreading, Strontium Isotopes, Marine Chemistry, Red Sea

Scientific paper

High-precision Pb isotope analyses were performed on Holocene basalts from the axial trough of the Red Sea with a view to resolving the discrepancy between Pb isotope data in two recently published studies. To obtain a complete isotopic profile along this nascent oceanic basin, Sr and Nd isotopes were analyzed using the same sample solution. Basalts with chemical and isotopic signatures typical for N-type MORBs occur in the central region of the Red Sea at about 21.4 deg N. To the north and south of the central region, Pb and Sr isotope ratios show a systematic increase accompanied by a decrease in Nd isotope ratios.

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