| 浙东南碰撞造山带的岩石磁组构及其构造意义 |
| |
| 引用本文： | 谈晓冬,江新华.浙东南碰撞造山带的岩石磁组构及其构造意义[J].地球物理学报,1995,38(6):806-814. |
| |
| 作者姓名： | 谈晓冬 江新华 |
| |
| 作者单位： | 浙江大学地球科学系, 杭州 310027 |
| |
| 摘 要： | 对浙江东南碰撞造山带龙泉等地的岩石磁组构测试，显示了普遍具优势取向的最小磁化率主轴方向，由此所揭示的ＮＷ－ＳＥ方向的主压应力与侏罗纪以后该地区的推覆构造所揭示的主压应力方向一致．结合已发表的邻近地区的古地磁、同位素年龄等资料，认为该地区应属中生代碰撞造山带，龙泉群的变质年龄也与此相当．
|
| 关 键 词： | 磁化率各向异性 碰撞造山带 龙泉群 浙江东南 |
ROCK MAGNETIC FABRIC OF COLLISIONAL OROGENICZONE FROM SOUTHEASTERN ZHEJIANGPROVINCE AND ITS TECTONICIMPLICATION |
| |
| TAN XIAO-DONG,JIANG XIN-HUA,GUO YA-BIN,FANG DA-JUN,DONG SHI-YOU.ROCK MAGNETIC FABRIC OF COLLISIONAL OROGENICZONE FROM SOUTHEASTERN ZHEJIANGPROVINCE AND ITS TECTONICIMPLICATION[J].Chinese Journal of Geophysics,1995,38(6):806-814. |
| |
| Authors: | TAN XIAO-DONG JIANG XIN-HUA GUO YA-BIN FANG DA-JUN DONG SHI-YOU |
| |
| Institution: | Department of Earth Sciences, Zhejiang University, Hangzhou 310027 |
| |
| Abstract: | This paper reports the results of rock magnetic fabric Investigation in the collisional orogenic zone of southeastern Zhejiang Province.The consistent directions of minimum axes of anisotropy of magnetic susceptibility from melange,schist my lonite,schistized mudstone and so on show that there have been subject to compressive stresses in the direction of nortnwest-soutneast.And this compression directionis in good agreement with that revealed by post-Jurassic thrust in the same area.The authors challenge a conventional view of point that this orogeny is of Caledonian and make a suggestive point of Mesozoic orogeny and the corresponding metamorphic time of Longquan Group. |
| |
| Keywords: | Magnetic fabric Collisional orogenic belt Longquan Group South eastern Zhejiang Province |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
