| 辽西建昌盆地义县组上部英安岩的40Ar/39Ar年龄及其地质意义 |
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| 引用本文： | 郑月娟,李永飞,郜晓勇,苏飞.辽西建昌盆地义县组上部英安岩的40Ar/39Ar年龄及其地质意义[J].地质与资源,2011,20(3):167-171. |
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| 作者姓名： | 郑月娟 李永飞 郜晓勇 苏飞 |
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| 作者单位： | 沈阳地质矿产研究所, 辽宁 沈阳 110034 |
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| 基金项目： | 中国地质调查局“古亚洲洋构造体制与滨太平洋构造体制叠加转变综合调查与研究”、“松辽盆地及其外围地层-构造格架与油气资源前景调查”(编号1212010813070)资助 |
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| 摘 要： | 建昌盆地义县组可分为两部分:下部以巨厚的沉积层为主,自下而上称为要路沟层、罗家沟层,局部地区沉积层之下有中基性火山岩；上部(罗家沟层之上)为酸性、中酸性火山岩系夹沉积层.罗家沟层与义县一北票地区尖山沟(砖城子)层可进行生物地层学对比.对义县组上部的一件英安岩样品进行40Ar/39Ar年代学研究,获得年龄为120 Ma,...
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| 关 键 词： | 建昌盆地 义县组上部 英安岩 40Ar/39Ar同位素测年 辽西 |
| 收稿时间： | 2010-04-26 |
~(40)Ar/~(39)Ar STEPWISE HEATING AGE AND ITS GEOLOGICAL IMPLICATION OF THE DACITE AT THE UPPER PART OF THE YIXIAN FORMATION IN JIANCHANG BASIN,WESTERN LIAONING |
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| ZHENG Yue-juan,LI Yong-fei,GAO Xiao-yong,SU Fei.~(40)Ar/~(39)Ar STEPWISE HEATING AGE AND ITS GEOLOGICAL IMPLICATION OF THE DACITE AT THE UPPER PART OF THE YIXIAN FORMATION IN JIANCHANG BASIN,WESTERN LIAONING[J].Geology and Resources,2011,20(3):167-171. |
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| Authors: | ZHENG Yue-juan LI Yong-fei GAO Xiao-yong SU Fei |
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| Institution: | Shenyang Institute of Geology and Mineral Resources, Shenyang 110034, China |
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| Abstract: | The Yixian Formation in the Jianchang basin,Liaoning Province consists of a series of volcanic-sedimentary rocks,which can be divided into two members from bottom to top.The first member is composed mostly of sedimentary rocks,including Yaolugou bed(the lower) and Luojiagou bed(the upper),with intermediate-basic volcanic rocks at the bottom of the member.The second member is mainly acid and intermediate volcanic rocks with clastic rocks.Biostratigraphically,the Luojiagou bed may be correlated to the Jiansha... |
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| Keywords: | Jianchang basin the upper part of the Yixian Formation dacite 40Ar/39Ar stepwise heating age Western Liaoning Province |
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