摘要
云南建水县普雄地区三叠系划分为洗马塘组(T_1x)、嘉陵江组(Tj)、个旧组(T_2g)和法郎组(Tf)。其中洗马塘组(T_1x)主要为红色陆源碎屑沉积,形成于滨海陆屑滩环境;嘉陵江组(Tj)主要为灰色泥质碳酸盐沉积,形成于开阔台地-台地边缘环境;个旧组分为三个段,下段(T_2g~1)为灰色夹钙质的镁质碳酸盐沉积,形成于局限台地(主)、开阔台地;个旧组中段(T_2g~2)为灰色镁质碳酸盐沉积,形成于局限台地;上段(T_2g~3)为灰色钙质碳酸盐沉积,形成于台地边缘相区;法郎组(Tf)黄绿色含碳酸盐的陆源细碎屑沉积,形成于浅海陆棚环境。
Triassic in Puxiong area of Jianshui,Yunnan can be divided into Ximatang Formation( T_1x),Jialingjiang Formation( Tj),Gejiu Formation( T_2g) and Falang Formation( Tf). Ximatang Formation( T_1x) is mainly the red terrigenous clastic deposit,formed in the littoral terrestrial clastic beach; Jialingjiang Formation is mainly the grey argillaceous carbonate sediment,formed on the wide platform-platform margin; Gejiu Formation can be divided into 3 Members: Lower Member( T_2g~1) grey Mg carbonate sediment with Ca intercalation,formed on limited platform( mainly),wide platform; Middle Member( T_2g~2) grey Mg carbonate sediment,formed on limited platform; Upper Member( T_2g~3) grey Ca carbonate sediment,formed on platform margin facies area;Falang Formation( Tf) yellow-green carbonate-bearing terrestrial fine clastic sediment,formed in the neritic shelf environment.
引文
[1]西南冶金勘探公司308队.云南省建水县普雄铌多金属矿区普查报告[R].1972.
[2]云南省地质局第二区域地质调查队.1∶20万建水幅区域地质调查报告[R].1973.
[3]戴福盛、孙家聪、杨合荣.个旧锡矿西区地质[M].昆明:云南科技出版社,1994.
[4]云南省地质矿产局.云南省岩石地层[M].武汉:中国地质大学出版社,1996.
[5]云南省地质矿产局.云南省区域地质志[M].北京:地质出版社,1990.
[6]云南省地质局第二区域地质调查队.1∶20万个旧幅区域地质调查报告[R].1973.