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Zircon U-Pb geochronological evidence for the evolution of the Nan-Uttaradit suture in northern Thailand.
- Source :
-
Journal of Earth Science . Jun2016, Vol. 27 Issue 3, p378-390. 13p. - Publication Year :
- 2016
-
Abstract
- The Nan-Uttaradit suture is marked by a narrow N-S trending and discontinuous ophiolite belt in northern Thailand. This suture zone is a mélange composed of gabbro, tholeiitic metabasalt, andesite and radiolarian chert. Samples of gabbro and meta-basalt in the Nan-Uttaradit suture yield zircon U-Pb ages of 311±10 and 316±3 Ma, respectively, interpreted as the crystallization ages of the rocks, suggesting the Nan-Uttaradit Ocean existed in the Late Carboniferous. Our results indicate that the Nan-Uttaradit Ocean co-existed with the Ailaoshan-Jinshajiang Ocean to the north and was probably an along-strike extension of the latter. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1674487X
- Volume :
- 27
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Earth Science
- Publication Type :
- Academic Journal
- Accession number :
- 116170581
- Full Text :
- https://doi.org/10.1007/s12583-016-0670-z