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广东兰塘群在1/20万地质图中的广州、从化、连平、河源、紫金、惠阳、海丰、惠来、梅县等幅里均有分布。由于分布区缺乏连续的完整剖面,岩层变质程度较深,加之岩浆活动多次侵入的严重破坏,致使该区研究工作程度较低。 为了配合广东省中生代的普查找煤,笔者于1978至1979年参加了粤东兰塘群的岩石地层与生物地层的研究工作。本文对兰塘群提出一些新的认识,以供商讨。
Guangdong Lantang Group in 1/20000000 geological map of Guangzhou, Conghua, Liping, Heyuan, Zijin, Huiyang, Haifeng, Hui Lai, Meixian amplitude distribution. Due to the lack of a continuous complete profile in the distribution area, deeper strata metamorphism and the serious damage caused by repeated intrusion of magmatic activity, the study work in this area is relatively low. In order to cope with the Mesozoic census of Guangdong Province for coal, the author from 1978 to 1979 participated in the Lantang Group in eastern Guangdong rock stratum and bio-stratigraphic research. This article puts forward some new understanding to Lantang group for discussion.