地质与资源2019，Vol.28Issue(3)：215-222,245,9.
黑龙江跃进山杂岩中砾岩的碎屑锆石年代学及其大地构造意义
DETRITAL ZIRCON CHRONOLOGY OF CONGLOMERATE IN YUEJINSHAN COMPLEX, HEILONGJIANG PROVINCE: Geotectonic Implications
摘要
Abstract
The Yuejinshan Complex developed in Shichang area of Raohe County,Heilongjiang Province,is a set of marine﹣terrigenous sedimentary strata with rich Late Triassic fossils. The LA﹣ICP﹣MS zircon U﹣Pb dating results of conglomerate samples yield four groups of age,namely,above 800 Ma,500 Ma,251﹣284 Ma and 219﹣222 Ma respectively. The former three are completely in accordance with the ages of thermal events in Jiamusi massif,reflecting the sediment source mainly from Jiamusi massif. The latter,the youngest age group,can be roughly regarded as the latest sedimentary age of conglomerate. It is basically consistent with the early Late Triassic granite (210﹣228 Ma) widely distributed in Zhangguangcailing area of the east margin of Songliao massif,which indicates that the youngest detrital zircons are probably from the eastern Songliao massif. The characteristics of detrital zircon ages and source area reveal that the Yuejinshan accretionary complex has been located on and become a part of the east continental margin of Jiamusi massif before Late Triassic.关键词
跃进山杂岩/砾岩/碎屑锆石/地质年代学/大地构造/黑龙江省Key words
Yuejinshan Complex/conglomerate/detrital zircon/geochronology/geotectonics/Heilongjiang Province分类
天文与地球科学引用本文复制引用
曾振,孙雷,张兴洲,崔维龙,蒋力,李焓..黑龙江跃进山杂岩中砾岩的碎屑锆石年代学及其大地构造意义[J].地质与资源,2019,28(3):215-222,245,9.基金项目
国家自然科学基金重点项目"兴蒙海槽"晚古生代构造演化(编号40739905) （编号40739905）
中国地质调查局项目"黑龙江省东部隐伏盆地页岩气地质条件综合调查"(编号1212011120973) （编号1212011120973）
"松辽外围西部盆地油气基础地质调查"(编号DD20160163). （编号DD20160163）
