1503_651674.pdf — page 8

Chen et al.: Metallogenic setting and material source of Caihong copper-lead-zinc polymetallic deposit 
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APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH 15(3): 651-674. 
http://www.aloki.hu ● ISSN 1589 1623 (Print) ● ISSN 1785 0037 (Online) 
DOI: http://dx.doi.org/10.15666/aeer/1503_651674 
 2017, ALÖKI Kft., Budapest, Hungary 
Sample descriptions and analytical methods 
Major and trace elements analyses 
Samples selected from the ore-bearing host rock in Aerbishimaibulake Formation 
(D1ab) and the lamellar and the veined ore sulfide were analyzed with sample 
description shown in Tables 1 and 2. Major elements were analyzed with a PAN 
analytical Axios X-ray fluorescence spectrometer (XRF) at ALS Chemex(Guangzhou) 
Co Ltd. A calcined or ignited sample (0.9 g) is added to 9.0 g of Lithium Borate Flux 
(50%‒50% Li2B4O7–LiBO2), mixed well and fused in an auto fluxer between 1050‒
1100°C. A flat molten glass disc is prepared from the resulting melt. This disc is then 
analyzed by X-ray fluorescence spectrometry. The precision of the XRF analyses at 
ALS Chemex is better than 5%.Trace element concentrations were determined with an 
Elan 9000 at the same lab. A prepared sample (0.2g) is added to lithium metaborate flux 
(0.9g), mixed well and fused in a furnace at 1000 °C. The resulting melt is then cooled 
and dissolved in 100 ml of 4% HNO3/2% HCl3 solution. This solution is then analyzed 
by inductively coupled plasma-mass spectrometry (ICP-MS). The precision of the ICP-
MS analyses at ALS Chemex is better than 10%for all elements.  
 
Zircon U-Pb chronology  
Zircon were selected from the ore-bearing sericite quartz schist of Aerbishimaibulake 
Formation (D1ab)(CH1-4,CH1-6). U-Pb Dating was finished in State Key Laboratory of 
Geological Processes and Mineral Resource, China University of Geosciences (Wuhan). 
The content analyses of U-Pb isotope and trace elements were conducted by using 
GeoLas2005 Excimer Laser ablation system and Agilent 7500a ICP-MS, with laser 
ablation beam spot diameter of 32 μm; for zircon ages, zircon 91500 was selected as the 
external standard sample and GJ-1 was selected as the internal standard sample. For 
elements contents, SRM610 was selected as the external standard sample and 29Si was 
selected as the internal standard element. The detailed operation process and data can be 
seen from Liu et al. (2008, 2010).  
 
Stable isotopes analyses 
Sulfur isotope 
The sulfur isotope analysis was conducted for pyrite, chalcopyrite, galena and 
sphalerite. Sample descriptions and position are shown in Table 4. The test was 
completed in State Key Laboratory of Geological Processes and Mineral Resource, 
China University of Geosciences (Wuhan). All sulfide monominerals and cuprous oxide 
were heated under vacuum environment and to be oxidized into sulfur dioxide. The 
sulfur isotope composition of the collected SO2 was analyzed by using MAT-251 
isotope mass spectrometer that made in Germany. The accuracy could be indirectly 
given by the analysis results of certified reference material and the error was ±0.2‰. 
 
Hydrogen and oxygen isotope 
Sample descriptions of mineralization-period quartz are shown in Table 5. The test 
was finished in isotope laboratory of Institute of Mineral Resources, Chinese Academy 
of Geological Sciences. The samples were reacted with pure BrF5 under the constant 
temperature of 550~700℃ and then O2 was obtained. The purified O2 was reacted with