【作者】 陈伟明； 罗辉； 金远新； 赵宏刚； 王锡勇； 李云峰； 王驹；

【Author】 CHEN Wei-ming;LUO Hui;JIN Yuan-xin;ZHAO Hong-gang;WANG Xi-yong;LI Yun-feng;WANG Ju;CNNC Key Laboratory on Assessment Technology of Disposal of High-level Radioactive Waste,Beijing Research Institute of Uranium Geology;

【机构】 核工业北京地质研究院中核高放废物地质处置评价技术重点实验室；

【摘要】 新场岩体是高放废物处置库北山预选区中有利花岗岩体之一。通过7口钻孔的勘察,获得了该岩体东段深部的岩性、断裂和规模等地质信息。新场岩体东段的主体岩性是条带状混合花岗岩,其次是侵入的块状花岗闪长岩和二长花岗岩;断裂深部的产状基本与地表一致,其渗透性很低;岩体底板深度大于600 m。本次深部地质特征的研究成果为新场岩体东段的高放废物处置库选址工作提供了直接地质证据。更多还原

【Abstract】 Xinchang is one of the potential granites in Beishan pre-selected area for the disposal of high-level radioactive waste in China.Deep geological information on lithology,fault and size of east part in this granite has been gained by drilling seven boreholes.The main lithology of east part in this granite is banded migmatitic granite,and the next is block granodiorite and biotite adamellite.The deep attitude of fault is almost the same as that in surface and the deep permeability of fault is very low.The depth of granite of east part is more than 600 m.Above deep geological information provides direct evidences for the repository site selection in the east part in Xinchang granite.更多还原