【摘要】 本文通过对岩石成熟度、粒度分析和沉积构造、生物组合等方面的研究,得出乌当湄谭早期为一浅海陆棚——前滨回流带的完整海退系列的认识。区内沉积构造丰富,岩相标志明显,是一个较好的岩相古地理教学场所。更多还原

【Abstract】 This is a report on the research result about the lithofacies and pal- aeogeography of Wudan, Guiyang in Meitan age. The method which consi- sted of maturity of rock, particle size analysis, structure of deposit and bioanalynite was used in the process of research. The conclusion is that this area in early Meitan age was a deposit series of regression, it stre- tched from the shallow shelf sea to foreshore.更多还原