Zircon LA-ICP-MS U-Pb age, Ce4+ /Ce3+ ratios and the geochemical features of the Machangqing complex associated with copper deposit

Liang, Huaying; Yu, Hongwei; Chen, Mo; Zhang, Yuquan; Xie, Yanwu

doi:10.1007/bf02840415

Cited by 7 publications

(1 citation statement)

References 16 publications

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“…However, the total REE amount is higher, and above all, the fractionation of LREE and HREE is more intense, which may be considered as an important reason for Cu mineralization in this region, since the contents of LREE are usually high in highly fractionated magma compared with those of HREE. Liang Huaying et al (2006) came to the same conclusion in terms of the ratios of Ce 4+ /Ce 3+ and the geochemical features of the Machangqing complex associated with copper deposit. (1990); All the data are the results of normal wet chemical analysis; -denotes "not detected".…”

Section: Rare-earth and Trace Elementssupporting

confidence: 50%

Formation of the adakite-like granitoid complex and porphyry copper-gold deposit in Shaxi from southern Tancheng-Lujiang fault belt: A clue to the West Pacific plate subduction

Xiang-hua

Yang

et al. 2009

Chin. J. Geochem.

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On the basis of the geological and geochemical studies, including chemical analysis of bulk rocks, rare-earth and trace element studies, fluid inclusion, and S and O isotopic analyses, the authors described the geological background of the deposit in detail and presented significant proofs for the conditions of formation of the Shaxi porphyry copper-gold deposit. Compared with other large and supper-large porphyry copper deposits in China and the adjacent Cu-Au mineralized areas, the ore-forming processes and conditions were analyzed; and the possibility of forming large porphyry copper deposits in the Shaxi area was discussed. The present study indicated that the ore-forming fluid and material were mainly of magmatic origin, while meteoric water played a certain role in the ore-forming processes. Interactions between subducting and overriding plates provided a major driving force for the formation of igneous rocks and the deposition of metal elements in East China since Jurassic. Based on the geochemical data of the Shaxi intrusive, it is found that the copper (gold) mineralization is closely related to the genesis of adakite-like intrusive in the Shaxi area. This adakite-like intrusive was formed in the subduction environment as a result of the subduction of the West Pacific plate toward the East China continent, where there is a great potentiality to form a large porphyry copper deposit.

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Section: Rare-earth and Trace Elementssupporting

confidence: 50%