【摘要】 生物礁的研究对油气勘探具有重要意义。二叠纪生物礁的世界对比研究是二叠纪生物礁今后的研究方向之一，本文提出了重现申这一适用于不同礁之间生物群对比的参数，并据之对广西隆林祥播礁与突尼斯礁的房室海绵作了对比研究。根据计算，祥播礁的房室海绵在突尼斯礁中的重现率为７０％。更多还原

【Abstract】 Research on biological reef is of important significance for prospecting petrolium andgas。The correlation of Permian biological reef in the world is a future program. In thepaper，the author puts forward reappearance ratio，a parameter suitable for the correlationbetween biotas of different reefs. Using this parameter，the chamber sponge of Xiangboreef in Longlin County in Guangxi is compared with that of Tunisian reef，the reappearanceratio of the former to the latter is 70 per cent.更多还原