The iron bearing formations mainly occur in the Middle and , especially, Upper Devonian strata.
含矿建造主要赋存于中上泥盆统 ，而以上泥盆统为主。
Middle-Upper Devonian coral reef assemblage was studied in Jinshan Dashishan region near the station of Panxi, Huaning of Eastern Yunnan Province.
滇东华宁盘溪火车站以北的金山—大石山地区发育中、晚泥盆世的丘状珊瑚礁。
The lead-zinc deposits occur in the Lower Silurian Meiziya Formation, Middle Silurian Shuanghezhen Formation, Middle Devonian Dafenggou Formation and Upper Devonian Nanyangshan Formation.
铅锌矿赋存于下志留统梅子垭组、中志留统双河镇组及中泥盆统大枫沟组、上泥盆统南羊山组；
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