一、发现经过 在桂林南郊唐家湾公路以北约300米处(图1),有一个碳酸盐岩体,其两侧岩层产状相反,上面被一水平岩层复盖(图2,图版Ⅰ—1)。过去都认为其下部为一个小型背斜构造,其上部的水平岩层是逆掩断层造成的。 1980年底,作者在该岩体中发现了大量的造礁生物。经过仔细观察和研究,认为该地碳酸盐岩的特殊形态并不是地质构造现象,而是一个生物礁灰岩的岩隆。因为在野外工作 First, it was found that there was a carbonate rock body about 300 meters north of the Tangjiawan Highway in the southern outskirts of Guilin (Figure 1). The rock formations on opposite sides of the rock were opposite in shape and were covered by a horizontal rock formation (Figure 2, Plate I -1). In the past, the lower part of the structure was considered to be a small anticline structure, and the upper horizontal rock formation was caused by overthrusting the fault. At the end of 1980, the author found a large number of reef creatures in the rock mass. After careful observation and research, it is believed that the special form of carbonate rocks in this area is not a geological structure phenomenon, but a rock reef of a reef limestone. Because working in the wild