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如今的甘肃宝积山盆地沟壑交错,陆相地层分布较为完整。2亿年前这里是怎样的景观?一马平川,还是早已山峦起伏、植被繁茂?让我们跟随作者的脚步,叩问地层,探索大自然的奥秘。宝积山盆地位于甘肃省白银市境内,为腾格里沙漠和祁连山余脉向黄土高原的过渡地带。这里拥有丰富的煤炭资源,自古以来就是我国西北的能源重镇,可谓宝物富积如山,宝积山因此得名。盆地内的陆相地层分布较为完整,从寒武系到第四系的地层都有出露,其中以出露较为完好的中生代地层为主。经过
Now Gansu Bajishan basin gully staggered, terrestrial stratigraphic distribution is more complete. 200 million years ago, what kind of landscape is here? A Hirakawa, or has long been undulating mountains, vegetation, lush? Let us follow the footsteps of the author, asked the strata, to explore the mysteries of nature. The Baoshan Mountain Basin is located in the territory of Baiyin City, Gansu Province, and is the transition zone between the Tengger Desert and the Qilian Mountains to the Loess Plateau. Here has a wealth of coal resources, since ancient times is China’s energy northwest of the town, can be described as treasures rich, hence the name of Baoshan. The distribution of terrestrial strata in the basin is relatively complete. All the formations from the Cambrian to the Quaternary have been exposed. Among them, the Mesozoic strata that are exposed are relatively intact. after