| Autor: |
FAN Fei-peng, XIAO Hui-liang, CHEN Le-zhu, LI Hai-li, LIU Jian-xiong, DENG Zhong-lin, LI Shao-bin, LIN Geng-wei, ZHOU Xia |
| Jazyk: |
English<br />Chinese |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Yankuang ceshi, Vol 36, Iss 4, Pp 420-429 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
0254-5357 |
| DOI: |
10.15898/j.cnki.11-2131/td.201609010133 |
| Popis: |
The Xinliaodong copper-polymetallic deposit of Eastern Guangdong Province is one of newly discovered deposits. The ore district belongs to tin, tungsten, and copper ore cluster in the southeast coast, which have a very good ore-forming geological conditions. Chalcopyrite has δ65Cu value ranging from-0.34‰ to +1.37‰, which is consistent with δ65Cu value of porphyry deposits, indicating that ore-forming material Cu was derived from deep magma and ore-forming fluids were medium-high-temperature (250-420℃) magmatic-hydrothermal fluids. There is a close relationship between the fractionation of Cu isotope and magmatic hydrothermal activity. The formation of ore body is related to the dissolution of ore-forming fluids. With the increase of depth, there is atrend of increasing δ65Cu value, indicating a potential of a largee orebody. Copper isotope can directly indicate the location of the heat source. The δ65Cu values are below 0 for copper ore bodies close to the hydrothermal quartz veins.But the copper isotope values are higher in the hydrothermal contact zone, special ore-bearing surrounding rock and tectonic zone where indicates the edge or the front of the main ore body, most obvious ore prospecting mark. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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