• 责任者：Zhang Xibing (Eighth Team of Gold Mine of Chinese People’s Armed Police Forces ; Urumqi 830000 ; China) ; Yang Fuquan
• 刊名：Xinjiang Geology
• 出版年：2011
• 卷期：29(2)
• 关键词：闪长岩 ; diorites ; 岩石地球化学 ; lithogeochemistry ; 准噶尔盆地 ; Junggar Basin
• 页码：p.119-124
• 图表：4 illus., 1 table, 27 refs.
• 分类号：0801
• issnNo：ISSN1000-8845
• isbnNo：CN65-1092/P

Tuosibasitao diorite, which is located in Laoshankou iron-copper-gold ore deposit field, the northern margin of Junggar, Xinjiang, intruded in early carboniferous. The diorites show that the content of SiO₂ is from 51.8% to 55.5%, Na₂O+K₂O from 6.68% to 9.57%, and K₂O/Na₂O from 1.12 to 1.31, which belongs to metaluminous shoshinitic series. They display high concentrations of Ba and Sr, low concentrations of Y and Yb, noticeable negative anomaly of Nb, Ta, P and Ti, and positive anomaly of LREE, Th, U and Pb, and little abnormity of δEu (0.87-1.09).These features, together with the regional geology characteristics, indicate that Tuosibasitao diorite is formed under a subducted tectonic setting. Furthermore, the Tuosibasitao diorite is contributed to the Laoshankou iron-copper-gold ore deposit.