在华北地台北缘长城系地层中首次发现层位较新、具有工业价值的金矿。该矿产于长城系上部和蓟县系下部层位中，受破碎角砾岩控制。氧化带中金呈微细浸染状，矿体与围岩界线不清。矿物组合简单，伴生低温蚀变。具Ａｕ、Ａｓ、Ｓｂ异常，而Ｃｕ、Ｐｂ、Ｚｎ等元素含量低。这一特征与国内公认的微细浸染型金矿元素组合具有一致性。 For the first time, gold deposits with new levels and industrial value have been found in the Great Wall series of the northern margin of North China Platform. The mineral in the upper Great Wall and Jixian lower strata, controlled by the broken breccia. In the oxidation zone, the gold is finely disseminated and the boundary between the ore body and the surrounding rock is unclear. Mineral combination is simple, accompanied by low temperature alteration. With Au, As, Sb anomalies, and Cu, Pb, Zn and other elements low. This feature is consistent with the nationally recognized elemental combination of finely disseminated gold ore.