• 责任者：Li Bile (College of Earth Sciences ; Jilin University ; Changchun 130061 ; China) ; Sun Fengyue
• 刊名：Acta Petrologica Sinica
• 出版年：2012
• 卷期：28(4)
• 关键词：闪长岩 ; diorites ; 铀—铅计时 ; U-Pb dating ; 岩石地球化学 ; lithogeochemistry ; 昆仑山 ; Kunlun Mountains
• 页码：p.1163-1172
• 图表：illus., 2 tables, 40 refs.
• 分类号：0801
• issnNo：ISSN1000-0569
• isbnNo：CN11-1922/P

LINE-HEIGHT: 18pt; MARGIN: 0cm 0cm 0pt; mso-line-height-rule: exactly" class=MsoNormal>Studies of petrology and geochemistry indicate the high-K calc-alkaline diorite groups are located in the eastern section from eastern Kunlun middle uplifted basement and granitic belt. This suite of dioritic rocks are enriched in LILE, LREE and more mobile incompatible elements, relatively depleting in HFSE, similar to the characteristics of Andean-type active continental margin magma. It is suggested that a mixture, between basaltic magma derived from partial melting of metasomatized mantle and acidic magma derived from crustal material, produces the dioritic magma. LA-ICP-MS zircon U-Pb dating shows that the diorite in the Asiha intrusions was formed at ～244 Ma, which in Early Indosinian period.