摘要
海南岛南渡江中游一带(包括白沙、儋县琼中、澄迈、屯昌等县的交界部位)发育着一套浅变质岩系(图1),主要由板岩、千枚岩、变质粉砂岩、变质砾岩组成,偶夹结晶灰岩和大理岩,属低绿片岩相产物。由于这套浅变质岩系和研究铁、磷、钨、锡、铌、鉏、贵金属等矿产的成矿规律以及探讨海南岛的大地构造性质有密切关系,历来为地质界所瞩目;
The weakly metamorphosed rocks in the middle reaches of the Nandujiang River in Hainan Island were named Tuolie Group of Cambrian System. Afterwards, it was assigned-also into Sinian-Cambrian, Ordovician, Devonian and Carboniferous Systems. According to the newest achievement in geological survey, this group has been divided recently into the Zusailing Formation of Upper Silurian Series, Nanhao Formation and Qingtianxia Formation of Lower Carboniferous Series and Shiling Formation of Lower-upper Carboniferous Series. The ages of all of the formations mentioned above have been demonstrated based on the study of paleobiostratlgraphy.
出处
《地层学杂志》
CSCD
北大核心
1993年第2期100-107,共8页
Journal of Stratigraphy
