当前位置:首页 > 公园博览 > 推荐路线

    生物扰动灰岩

    Bioturbated limestone

    生物扰动遗迹出露于关岭组二段灰色-深灰色中-厚层状瘤状灰岩(图9)。岩层垂面表现为疙瘩状、瘤状或椭圆状小管平缓,垂面上瘤体长轴2mm-12mm,大小分化严重。生物扰动构造的发育反映出中三叠世时期该地区生活环境十分优越,有利于底栖生物生存,生物活动强烈,也反映出该处水体活动较强,是滨浅海相特征。

    The grey or dark grey, medium thick bedded limestone of Member II of the Guangling formation shows strong bioturbation s.  The axial length of single burrow varies from 2 to12mm.The common occurrence of bioturbation indicates the presence of oxygenated environment, which is suitable for colonization of benthic organisms. The palaeoenvironment of this area is interpreted as shallow marine during the Middle Triassic.

    QQ图片20160107163907.jpg

     

     

     

    [ 作者:周长勇 | 来源:成都地质调查中心 | 点击数: | 更新时间:2016-01-07 16:37:21 ]

主办 :罗平县国土资源局 版权所有:罗平县国土资源局

地址: 罗平县罗雄街道万峰路2号 邮编: 655800 电话:0874-8775939
IP备案号: 滇ICP备15004793号-1
访问人数:176047