Two ages of porphyry intrusion resolved for the super-giant Chuquicamata copper deposit of northern Chile by ELA-ICP-MS and SHRIMP
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Ballard, Julian
Palin, J M
Williams, Ian
Campbell, Ian
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Geological Society of America Inc
Abstract
Zircon U-Pb ages measured in situ by excimer laser ablation-inductively coupled plasma-mass spectrometry (ELA-ICP-MS) and verified by sensitive high-resolution ion microprobe (SHRIMP) on ore-bearing felsic porphyries from the Chuquicamata porphyry copper-
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Geology