德昌地区水系沉积物稀土氧化物总量地球化学特征及找矿方向

朱友欢, 聂飞, 邹佳作, 李宏伟, 周学铖, 冉光辉, 雷栋

Total rare-earth oxides in stream sediments in the Dechang area: Geochemical characteristics and prospecting targets

ZHU You-Huan, NIE Fei, ZOU Jia-Zuo, LI Hong-Wei, ZHOU Xue-Cheng, RAN Guang-Hui, LEI Dong

图2 德昌地区地质简图(据文献[14]修改) 1—第四系;2—昔格达组;3—小坝组;4—飞天山组;5—官沟组一段;6—官沟组二段;7—官沟组三段;8—牛滚凼组一段;9—牛滚凼组二段;10—新村组;11—益门组;12—宝顶组三段;13—白果湾组二段;14—嘶风崖组;15—灯影组;16—观音崖组;17—列古六组;18—开建桥组一段;19—开建桥组二段;20—苏雄组;21—天宝山组一段;22—天宝山组二段;23—五马菁组;24—咱里岩组;25—冷竹关岩组;26—晚三叠世黑云钾长花岗岩;27—晚三叠世黑云二长花岗岩;28—晚二叠世黑云钾长花岗岩;29—中二叠世角闪辉长岩;30—中二叠世辉绿辉长岩;31—中二叠世辉长、辉长辉绿岩;32—中二叠世角闪闪长岩;33—中二叠世角闪辉石岩;34—中二叠世辉石橄榄岩;35—中元古代黑云钾长花岗岩;36—中元古代二云二长花岗岩;37—古元古代黑云二长花岗岩;38—古元古代黑云花岗闪长岩;39—古元古代黑云斜长花岗岩;40—古元古代黑云角闪英云闪长岩;41—古元古代黑云角闪石英闪长岩;42—地质界线;43—平行不整合岩层界线;44—角度不整合岩层界线;45—正断层;46—逆断层;47—平移断层;48—物探推测断层及倾向;49—断层编号;50—背斜;51—向斜;52—褶皱编号

Fig.2 Geological sketch of Dechang area(revised according to reference [14]) 1—Quaternary; 2—Xigeda Formation; 3—Xiaoba Formation; 4—Feitianshan Formation; 5—section 1 of Guangou Formation; 6—section 2 of Guangou Formation; 7—section 3 of Guangou Formation; 8—section 1 of Niugundang Formation; 9—section 2 of Niugundang Formation; 10—Xincun Formation; 11—Yimen Formation; 12—section 3 of Baoding Formation; 13—section 2 of the Baiguowan Formation; 14—sifengya Formation; 15—Dengying Formation; 16—Guanyinya Formation; 17—Lieguliu Formation; 18—section 1 of Kaijianqiao Formation; 19—section 2 of Kaijianqiao Formation; 20—Suxiong Formation; 21—section 1 of Tianbaoshan Formation; 22—section 2 of Tianbaoshan Formation; 23—Wumajing Formation; 24—Zaliyan Formation; 25—Lengzhuguan Formation; 26—late Triassic biotite potassium feldspar granite; 27—late Triassic biotite monzogranite; 28—late Permian biotite potassium feldspar granite; 29—middle Permian hornblende gabbro; 30—middle Permian diabase gabbro; 31—middle Permian gabbro and gabbro diabase; 32—middle Permian hornblende diorite; 33—middle Permian hornblende pyroxenite; 34—middle Permian pyroxene peridotite; 35—middle Proterozoic biotite potassium feldspar granite; 36—middle Proterozoic biotite-muscovite granite; 37—Paleoproterozoic biotite monzogranite; 38—Paleoproterozoic biotite granodiorite; 39—Paleoproterozoic biotite plagioclase granite; 40—Paleoproterozoic biotite hornblende quartz diorite; 41—Paleoproterozoic biotite hornblende quartz diorite; 42—geological boundaries; 43—parallel unconformity rock boundaries; 44—angular unconformity rock boundaries; 45—normal faults; 46—reverse faults; 47—translation faults; 48—geophysical speculation of faults and dip; 49—fault number; 50—anticline; 51—syncline; 52—fold number