摘要
针对新疆泉水沟火山岩地区海拔高、交通不便带来的调查程度低的问题,该文利用WorldView-2和ASTER数据进行综合解译,共解译出5个火山口,并将其岩性由火山口至外部划分为杏红状碱性玄武岩、碱性玄武岩、粗安岩夹碱性玄武岩、粗安岩、粗安岩夹火山角砾岩等5个岩性单元。结合该地区相关地质资料,并利用ASTER数据进行遥感蚀变异常的提取圈定,认为泉水沟组火山岩早期具爆发相,晚期具溢流相,底部岩浆房的形成与泉水沟-冰水河断裂深部活动有关,具备很好的成矿热源与矿源条件,是寻找热液型金、铜、多金属及硫磺的有利地区。
This paper made a comprehensive interpretation with WorldView 2 and ASTER data in Quanshuigou area. The interpretation locates five volcanic vents and divides the lithological characters into five lithological units including the apricot pink alkali basalt（πχβ）, the alkali basalt （χβ）, the trachyandesite mingled with alkali basalt （τα＋χβ）, the trachyandesite （τα） and the trachyandesite mingled with volcanic breccia （τα＋χβ）. According to related geological data of the area and the remote- sensing alteration anomaly extraction and delineation with ASTER data, it is believed that the volcanic rocks in Quanshuigou group has an eruptive phase in the early stage and an effusive phase in the later period;the formation of bottom magma chamber is related to the deep-seated motions of Quanshuigou-Bingshuihe fracture; the area has good heat sources for mineralization and conditions for mineral resources, which is a favorable area for the exploration of heated-liquid gold, copper, multi-metal and sulfur.
出处
《遥感信息》
CSCD
北大核心
2016年第2期54-59,共6页
Remote Sensing Information
基金
中国地质调查局地质调查项目(1212011120885)
