Peculiarities of the Absk Intrusion Traps and Their Formation Conditions (Siberian Platform)

摘要：

　　Results of petro-geochemical investigations of the Absk intrusion traps in the southern Siberian platform are presented.The presence of dolerite varieties with relatively high alkaline and silica contents is characteristic of the Absk intrusion traps.Occurrence of high alkaline rock varieties is related to different structural position of the magma conducting faults relative to magma chamber and fluid reworking of rocks as well as to local postmagmatic influence of residual deep fluid on initial dolerites.It is suggests that the plume-lithosphere interaction was the mechanism by which the Absk intrusion was formed within the trap province.

关键词： basic rocks magmatism sills traps Siberian platform

作者: M.E.Tonkikh K.N.Egorov A.I.Kiselev

作者单位: National Research Irkutsk State Technical University,Irkutsk,Russia Institute of the Earths crust,Irkutsk,Russia

会议类型: 国际会议

会议名称: 第十八届凯洛林国际地质学术研讨会(The 18th Kerulien International Conference on Geological)

会议地点: 石家庄

会议语种:英文

页码: 411-415

在线出版日期: 2013-09-20（万方平台首次上网日期，不代表论文的发表时间）