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笔者于1977～1978年,在温都尔庙铁矿南带460平方公里范围进行了1/5万地质填图.在此基础上对褶皱构造作了进一步的研究.通过露头观察、大比例尺草测及构造要素的统计分析(5864个面理和线理要素),按历史分析的观点,我们认为本区温都尔庙群属于加里东褶皱带并构成华力西褶皱带的基底,而本身的褶皱既不是复式背斜也不是复式向斜,而是多期叠加褶皱,组合形态繁多.我们通过叠加褶皱的恢复及层位对比重新确定了层序、测算了厚度,将本区温都尔庙群分为三个组,五个岩性段,总厚1290米(见表);并确认:只有一个含铁层位,其原始厚度仅数米,且以小于2米者为主.目前所见之厚大工业矿床,主要归功于褶皱重叠和加厚作用.本文重点阐述本区温都尔庙群的褶皱特征及其对铁矿床的控制作用.
In 1977 ~ 1978, the author carried out 1/50000 geologic mapping on the area of 460 km 2 in the south of the Wenduermiao iron deposit, and further studied on the fold structure based on this. Through outcrop observation, According to the historical analysis, we believe that the Wondoumiao Group in this area belongs to the Caledonian fold belt and forms the base of the Hurrical fold belt Of the fold is neither a double anticline nor a double syncline, but multiple fold superimposition, the combination of many forms.We have re-determined the sequence by superimposed fold recovery and stratigraphic contrast, measured the thickness, The temple group is divided into three groups and five lithologic sections with a total thickness of 1,290 meters (see table). It is also confirmed that there is only one iron-bearing layer with an original thickness of only a few meters and mainly less than 2 meters The thick industrial deposits that we see are mainly attributed to fold overlap and thickening.This paper focuses on the fold characteristics of the Wutuer Miao Group in this area and its control on the iron ore deposits.