| 碲在官田黄铁矿矿床中的聚集及地球化学 |
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| 关键词:Te-geochemical behaviour Te-bearing hydrothermal solution Te concentration |
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| Concentration and Geochemical Behaviour of Tellurium in Guantian Pyrite Deposit |
| Tellurium represent ,an important associated element,intensively concentrating in pyrite mineral as tsumoite、hedleyite and tellurobismuthite.This geochemical process can take place under such prerequisites as:pressure<10 MPa;temperatures=140～220 ℃;salinity of Te-bearing hydrothermal solution<12ω(NaCl) eq %;ionic type as SO 2- 4-K +-Ca 2+ ;pH=4.4～5.8; E h=-0.5V; f O 2 <10 -25 ×10 5 Pa; f CO 2 <10 1.8 ×10 5 Pa; f S 2 =(10 -11.93 ～10 -8.72 )×10 5 Pa Te_carrying hydrothermal solutions came from many sources,but predominantly from meteoric water during Te concentration.Tellurium migrated possibly in a form of 2- or -.Finally,the study correlated the Guantian Te_accompanying mineralization with the independant Dashuigou Te deposit. |
| HUANG Fu-rong.1998.Concentration and Geochemical Behaviour of Tellurium in Guantian Pyrite Deposit[J].Acta Geoscientica Sinica,19(1):50-58. |
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