Other
Scientific paper
May 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977e%26psl..35...71c&link_type=abstract
Earth and Planetary Science Letters, Volume 35, Issue 1, p. 71-78.
Other
5
Scientific paper
The hypothesis that seawater was the source of the hydrothermal fluid which formed the Upper Cretaceous ophiolitic cupriferous pyrite ore desposits of the Troodos Massif (Cyprus) has been tested by analysing the strontium isotopic composition of thirteen mineralized samples from four mines. Initial 87Sr/86Sr ratios range from 0.7052 +/- 0.0001 to 0.7075 +/- 0.0002, the latter value being indistinguishable from that of Upper Cretaceous seawater at 0.7076 +/- 0.0006 (2σ). Hence, the mineralized metabasalt samples have been contaminated with 87Sr, relative to initial magmatic strontium isotope ratios of the Troodos ophiolitic complex (0.70338 +/- 0.00010 to 0.70365 +/- 0.00005). Since seawater was the only source of strontium available during formation of the Troodos Complex which was isotopically relatively enriched in 87Sr, the data confirm that seawater was the source of the hydrothermal oreforming fluid.
Chapman Hazel J.
Spooner Edward T. C.
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