甘肃省肃北县马宗山乡平头山北坡，出露一套变质碎屑岩。1968年，甘肃省区调二队将它划归蓟县系平头山群上岩组；

There outcrops a sequence of metaclastic rocks on the north slope of Mount Pingtou at Mazongshan Town-ship, Subei county, Gansu province.

youdao

甘肃省肃北县马宗山乡平头山北坡，出露一套变质碎屑岩。1968年，甘肃省区调二队将它划归蓟县系平头山群上岩组；

There outcrops a sequence of metaclastic rocks on the north slope of Mount Pingtou at Mazongshan Town-ship, Subei county, Gansu province.

youdao