Exploration indicators of the Jiama porphyry–skarn deposit, southern Tibet, China

نویسندگان

چکیده

Whole-rock geochemical data and compositional balance analysis (CoBA), combined with a magnetic susceptibility model obtained from high-precision survey, are useful exploration tools in the Jiama porphyry–skarn deposit, southern Tibet, China. In this paper, three innovative aspects of described that have assisted deposit: an improved geological understanding thrust–nappe structure, hydrothermal fluid pathways, magma mixing; data- knowledge-driven whole-rock geochemistry; survey deposit. The local strata provided materials natural trap for skarn formation, site circulation porphyry ore precipitation. An interlayer detachment zone, gliding nappe cylindrical fissure system channels migration, Niumatang Anticline accommodation space system. Miocene mixing crustal contamination led to development complex mineralization area. signatures CoBA, spatial distribution strata, structures, igneous rocks, alteration, mineralization, degree erosion enable integration data. “demagnetization skylight” identified by anomalies UBCmag3D software revealed location concealed A 0.014–0.016 was found identify skarn. Our indicators deposit can be used guide throughout region.

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ژورنال

عنوان ژورنال: Journal of Geochemical Exploration

سال: 2022

ISSN: ['1879-1689', '0375-6742']

DOI: https://doi.org/10.1016/j.gexplo.2022.106982