%0 Journal Article %9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES %A Wang, K. K. %A Graham, I. T. %A Martin, L. %A Voudouris, P. %A Giuliani, Gaston %A Lay, A. %A Harris, S. J. %A Fallick, A. %T Fingerprinting paranesti rubies through oxygen isotopes %D 2019 %L fdi:010075315 %G ENG %J Minerals %@ 2075-163X %K rubies ; corundum ; in-situ oxygen isotopes ; Paranesti Greece ; Nestos ; Shear Zone ; Secondary ion mass spectrometry (SIMS) %K GRECE %M ISI:000460799000025 %N 2 %P art. 91 [14 ] %R 10.3390/min9020091 %U https://www.documentation.ird.fr/hor/fdi:010075315 %> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers19-03/010075315.pdf %V 9 %W Horizon (IRD) %X In this study, the oxygen isotope (O-18) composition of pink to red gem-quality rubies from Paranesti, Greece was investigated using in-situ secondary ionization mass spectrometry (SIMS) and laser-fluorination techniques. Paranesti rubies have a narrow range of O-18 values between similar to 0 and +1 parts per thousand and represent one of only a few cases worldwide where O-18 signatures can be used to distinguish them from other localities. SIMS analyses from this study and previous work by the authors suggests that the rubies formed under metamorphic/metasomatic conditions involving deeply penetrating meteoric waters along major crustal structures associated with the Nestos Shear Zone. SIMS analyses also revealed slight variations in O-18 composition for two outcrops located just similar to 500 m apart: PAR-1 with a mean value of 1.0 parts per thousand +/- 0.42 parts per thousand and PAR-5 with a mean value of 0.14 parts per thousand +/- 0.24 parts per thousand. This work adds to the growing use of in-situ methods to determine the origin of gem-quality corundum and re-confirms its usefulness in geographic "fingerprinting". %$ 064