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国家地震局工矿爆破观测协作组于1982年5月中旬至7月上旬,在我国西北地区完成一项定名为“7782工程”的科学试验。该项试验系利用国家物资总局进行的永登64吨和153吨大型爆破,并补充一些2吨左右的小炮,形成一条测线长达935.7公里的深地震测深(DSS)剖面。该测线途经甘肃、陕西、宁夏和青海等省(自治区),跨越著名的南北地震带北段。该试验的完成,为研究该地区的地壳和上地幔
National Bureau of Seismological Bureau blasting observation collaboration group in mid-May 1982 to early July early in the northwest of China to complete a named “7782 Project” scientific experiment. The test uses the 64-tonne and 153-ton large-scale blasting conducted by the State Administration of Supplys and supplements some 2 tons of small gun to form a deep seismic sounding (DSS) profile measuring 935.7 km. The survey line passes through Gansu, Shaanxi, Ningxia and Qinghai provinces (autonomous regions), across the northern section of the famous North-South seismic belt. The completion of the experiment, for the study of the region’s crust and upper mantle