西班牙拉斯厄米塔斯生物礁的成因研究

拉斯厄米塔斯礁是早寒武世的藻类和古杯生物礁，被认为是属于堤礁类型。本文根据实地观察分析，认为这个礁发育在被剥蚀的侵入岩之上，是一个形成于当时海底隆起上的点礁，虽然其部位恰好在台地与盆地的分界线附近，却与一般含义的堤礁不同。其成因与湖南晚二叠世的华塘礁与梅田礁很相似。图３，参５。

RESEARCHS ON THE ORIGIN OF THE LAS ERMITAS REEF IN SPAIN

Las Ermitas reef is a cambrian reef. It was built by the algae and archaeocyaths. Because it developed near the boundary between the platform and basin, it has been considered as a barrier reef.According to the field observation on the reef outcrops,it has been discovered that the reef grew up on the uplifted area which was caused by the intrusive rocks. Therefore, this reef should be called the patch reef rather than the barrier reef. For the reef or gin, the similar samples are the Permian reefs found in Huatang and Meitian of South Hunan. 3figs., 5refs.