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上石炭统太原组、山西组是华北地层区中北部晚古生代主要含煤岩系。在太原西山层型剖面地区,太原组下界起自晋祠砂岩之底;山西组上界止于骆驼脖子砂岩之底,二组以北岔沟砂岩之底为界,连续沉积。长期以来,特别是1959年全国第一届地层会议之后,地层工作者对于太原西山以外地区太原组、山西组的对比划分,却存在着重大分歧,其焦点在于山西各地上石炭统海相层与太原西山层型剖面诸海相层究竟如何对比。上述分歧已成为山
The Upper Carboniferous Taiyuan Formation and Shanxi Formation are the late Paleozoic major coal-bearing rocks in central and northern North China stratum. In the Taiyuan-Xishan stratigraphic section, the lower boundary of the Taiyuan Formation starts from the bottom of the Jinci sandstone; the upper boundary of the Shanxi Formation terminates in the bottom of a camel neck sandstone, and the second is continuously deposited with the bottom of the Northchaichao sandstone. For a long time, especially after the first strata conference in 1959 in China, the stratum workers have different opinions on the division of Taiyuan and Shanxi groups except for Xishan in Taiyuan. The focus is on the stratigraphic correlation between the upper Carboniferous strata Taiyuan Xishan stratigraphic section Zhuhai phase exactly how the contrast. The above differences have become mountains