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Protracted lifespan of the late Mesozoic multistage Qianlishan granite complex, Nanling Range, SE China: implications for its genetic relationship with mineralization in the Dongpo ore field

Citation

Liao, Y and Zhang, D and Danyushevsky, LV and Li, T and Liu, Y, Protracted lifespan of the late Mesozoic multistage Qianlishan granite complex, Nanling Range, SE China: implications for its genetic relationship with mineralization in the Dongpo ore field, Ore Geology Reviews, 139, (Part A) Article 104445. ISSN 0169-1368 (2021) [Refereed Article]

Copyright Statement

Copyright 2021 Elsevier

DOI: doi:10.1016/j.oregeorev.2021.104445

Abstract

The Dongpo ore field, containing a series of W-Sn-Mo-Bi-Pb-Zn granite-related deposits, is a typical reduced intrusion-related system centered with the causative zoned Qianlishan granite complex (QGC). The QGC comprises porphyritic granite, equigranular granite and granite porphyry. According to zircon U-Pb age data, the emplacement timing of the QGC was constrained to 155151.7 Ma. Here, we conducted a set of geochronological analyses with different closure temperatures (including monazite, apatite U-Pb, biotite and muscovite Ar-Ar and zircon fission track dating) on the QGC, revealing that the QGC experienced a protracted magmatic-hydrothermal timespan of 38.853.8 my. The protracted lifespan is probably due to radiogenic heat supplied by highly enriched high-heat-producing elements. The mineralizing blossom time (149154.2 Ma) in the Dongpo ore field is in accordance with the prolonged lifespan (5.7 my: from 149.3 Ma to 155 Ma) of the magmatic-hydrothermal process caused by the QGC over the temperature range of 300800 C. This result implies that successive inputs of magma with high heat-producing elements (U, Th, K) play a fundamental role in the metal enrichment process of intrusion-related deposits and the formation of large economic ore fields.

Item Details

Item Type:Refereed Article
Keywords:Qianlishan granite complex, intrusion-related Dongpo ore field, protracted magmatic-hydrothermal lifespan, time lag
Research Division:Earth Sciences
Research Group:Geology
Research Field:Geochronology
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the earth sciences
UTAS Author:Danyushevsky, LV (Professor Leonid Danyushevsky)
ID Code:148693
Year Published:2021
Web of Science® Times Cited:1
Deposited By:CODES ARC
Deposited On:2022-02-02
Last Modified:2022-04-20
Downloads:0

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