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静宁一秦安间葫芦河河谷分布的基岩露头,是甘肃东部变质地层出露最好的地段之一。解放前,沿河地质几乎没有做过调查。解放后,在党和毛主席的英明领导下,地质工作蓬勃开展,不少地质单位的地质工作者克服了交通和自然条件的困难,沿河开展工作,屡有发现。其中较为重要的是原甘肃省地质局陇东地质队在庄浪王家高原发现志留纪珊瑚化石,在静宁受家峡东面的杨家湾发现含Sowerbyella sp.的奥陶纪地层,证实了它是北祁连褶皱带的东延部分。此后,1∶20万区域地质测量静宁幅、秦安幅对葫芦河地区地层重新作过划
Qujing Ningqian Hulahe River valley bedrock outcrop distribution, is the eastern part of Gansu metamorphic strata exposed one of the best. Before the liberation, there was almost no survey conducted along the river geology. After the liberation, under the wise leadership of the party and Chairman Mao, geological work has flourished. Many geological workers in geological units have overcome difficulties in traffic and natural conditions and have carried out work along the river for many times. The more important one is that the Gudong Geological Bureau Longdong Geological Team discovered the Silurian coral fossils in the Wanglang Plateau of Zhuanglang and discovered the Ordovician strata containing Sowerbyella sp. In Yangjiawan, east of Jingjiagou, confirming It is the eastern extension of the North Qilian fold belt. Since then, 1: 200,000 regional geological survey Jing Ning amplitude, Qin amplitude on the gourd area re-made