Progressive crushing ⁴⁰Ar/³⁹Ar dating of a gold-bearing quartz vein from the Liaotun Carlin-type gold deposit, Guangxi, southern China.

ABSTRACT: Carlin-type gold deposits are among the largest hydrothermal gold deposits in the world. However, direct dating the metallogenic age of these deposits is difficult, because not all deposits provide material suitable for conventional radiometric methods. Syn-mineralization stage quartz veins from these deposits usually contain abundant fluid inclusions, which allow fluid inclusion ⁴⁰Ar/³⁹Ar dating. In this study, progressive crushing ⁴⁰Ar/³⁹Ar dating has been performed on a gold-bearing quartz vein from the Liaotun Carlin-type gold deposit in northwestern Guangxi, China. Argon isotopes liberated from the later steps yielded an isochron age of 200.7 ± 2.1 Ma. We infer that Ar-bearing gas was extracted from the primary fluid inclusions, and that the

SUBMITTER: Hu R 

PROVIDER: S-EPMC9329373 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature