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oxygen and hydrogen isotope study of serpentinized peridotite rocks, thrust zone, north east iraq | ||
| Iraqi National Journal of Earth Science (INJES) | ||
| Article 3, Volume 7, Issue 1, 2007, Pages 13-20 PDF (0 K) | ||
| DOI: 10.33899/earth.2007.40512 | ||
| Authors | ||
| Elias M. Elias; Yousif O. Mohammed; Ahmed M. Aqrawi | ||
| Abstract | ||
| This study concentrates on two serpentinite bodies (Mawat and Penjwin) within Zagros Thrust Zone, North East Iraq. The Mawat Serpentinite which represents lherzolite protolith show δ18O of 6.77 – 8.33 %o and δD values of (-65) - (-61) %o. The Penjwin serpentinite (harzburgite protolith) show δ18O values of 10.90 – 13.29 %o and δD values of (-74) – (-69) %o. Mawat serpentinization occurred by hydration of mantle wedge rocks along intraoceanic supra-subduction zone at temperature of 150 – 200 oC. On the other hand Penjwin serpentinization occurred during and after emplacement of Penjwin ophiolite suite at temperature of 50 – 100 oC. Emplacement of Mawat serpentinite as an isolated body into Walash volcano-sedimentary sequence took place by diapiric process. Penjwin serpentinite was emplaced due to tectono-metamorphic event. | ||
| Keywords | ||
| oxygen; hydrogen isotope; peridotite rocks | ||
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