当前位置:首页 > 公园博览 > 推荐路线

    上石坎半坡叠层石

    Stromatolites at halfway up Shangshikan Mountain

    叠层石产于关岭组二段中层状白云岩中,整体形态表现为丘状,还有分枝状,团块状,内部发育纹层构造,由明暗相间条纹相互叠置构成,叠层石由若干基本层构成的,基本层上下相互叠合或套合形成柱体,主体的不断增长及分叉构成叠层石体。叠层石是碳酸盐岩沉积中最常见的一种“准化石”,是原核生物所建造的有机沉积结构。现代叠层石主要生长于潮间带,生活于水下,可露出水面。

    3.jpg

    11 上石坎半坡叠层石

    Fig. 11 Stromatolites at halfway up Shangshikan Mountain

    Stromatolites produced in the Guanling formation of layered dolomite in, the overall shape performance is dome shaped and branched, lumpy, internal development of laminated structure, composed of light and dark stripes are composed of stacking, stromatolite is composed of several basic layer, base layer overlapping or nested form column body, subject of growing and bifurcation form stromatolites. Stromatolite is a "quasi fossil" most common carbonate, organic sedimentary structure built in prokaryotes. Modern stromatolites are mainly grown in the intertidal zone, living in the water, can be out of the water.

    [ 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 16:43:08 ]

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:176049