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▲1987年9月中旬,宁夏地矿局区调队对一分队承测的1:5万土井子、前古城子、马夫匣子三个联测图幅,二分队承测的1:5万阿拉巴拉岱、石炭井二个联测图幅进行了野外验收,以上图幅通过三年多的野外地质矿产调查工作,获得了较明显的地质与找矿效果。其中一分队在科学山北段采到先祖肿牙形石,为北祁连走廊过渡带存在上寒武统地层提供了证据;在下奥陶统首次采得较丰富的牙形石及头足类化石;还圈定了各类异常九处,新发现了双疙瘩、大战场等金、银矿点。二分队在五条山首次发现孙氏盾壳虫化石,并在原划归上寒武统下部分出了中寒武统地层;呼鲁斯太南侧的山西组中发现海相灰岩,对其沉积环境提供了新资料;在太古界变质岩区亦找到一些金矿化线索。验收组认为上述图幅原始资料搜集较丰富,各项工作程度已达到设计要求,同意转入室内资料整理及编写最终报告。
▲ mid-September 1987, Ningxia Geological and Mineral Administration District transferred a squadron to test the first team of 1: 5 000 Doi-son, the former city, the Mavi-box three joint mapping map, the second unit of the test of 1: Bala Dai, two carbon rock Shek Pai co-seismic test carried out the field acceptance, the above map by more than three years of field geology and mineral investigation, access to a more obvious geological and prospecting results. One unit of the team collected the ancestral conodont in the northern part of the scientific mountainous area and provided evidence for the existence of the Upper Cambrian strata in the transitional zone of the northern Qilian Corridor. For the first time, more abundant conodont and cephalopods Fossils; also delineated all kinds of unusual nine, newly discovered lumps, the battlefield and other gold, silver mine point. For the first time, the Second Detachment discovered the Sun shield shield beetle fossils, and the Lower Cambrian strata were originally located in the lower part of the Upper Cambrian. Marine limestones were found in the Shanxi Formation to the south of the Hurus, Sedimentary environment provides new information; in Archean metamorphic rock area also found some gold mineralization clues. The inspection team considered that the original data of the above maps were collected more abundantly and all the work levels had reached the design requirements. They agreed to transfer the housekeeping materials and prepare the final report.