devonian-age
2.It contains the deeply dissected Bungle Bungle Range composed of Devonian-age quartz sandstone eroded over a period of 20?
7.SOME REMARKS UPON "ON THE AGE OF SILURIAN AND DEVONIAN FISH-BEARING STRATA FROM EASTERN CHINA
8.Three Devonian formations, namely Middle Devonian Gudaoling (D_2g), Upper Devonian Nanyangshan (D_3n) and Xinghongpu (D_3x), acted as the major hosting sequences of gold deposits in the study area, and some gold deposits were also hosted by the Yuanjiagou Formation (C_1y) of Lower Carboniferous age.

