摘要
广西下—中泥盆统富含珊瑚、腕足类、层孔虫和牙形石化石。珊瑚、层孔虫、腕足类是典型的热带、亚热带生物。通过全球分析,知牙形石分布在赤道附近。因此,表明中国南方大陆在早—中泥盆世之交处于赤道附近。古地磁研究证明广西地区的古纬度为0°36′,证实了这一推论。
In recent years the authors have Studied the Lower-Middle Devonian boundary beds in the Guangxi Zhuang Autonomous Region and seven sections have been studied in detail. They yield abundant corals, brachiopods, stromatoporoids and conodonts, and coral and stromatoporoid reefs are common. In general, reefs and conodonts were distributed at or near the equator. Their appearance represent the tropical or subtropical environment. These reveal that the South China plate was located near the equator during the Lower-Middle Devonian. Study on paleomagnetism reveal that the palaeolatitude of Guangxi during the Lower-Middle Devonian is 0.6 degree. This result shows that the studied region was at the equator which coincides with the result of the study of the fauna.
出处
《地质学报》
EI
CAS
CSCD
北大核心
1990年第3期199-205,共7页
Acta Geologica Sinica
基金
国家自然科学基金
国家教委基金
