And the reefs can be divided into three types : reefs developed in the margin of platform , mud mound in the low slope and patch reefs within the platform 黄泥塘一带属红椿湾边缘下斜坡的泥丘礁或生物灰泥丘。建7井区、石宝寨、老龙洞等生物礁则属于台内点礁。
2.
The reefs with linear appearances stretching from south to north in jiantianba - linchang are margin reefs , reefs located in the low slope of hongchun gulf are mud mound , and reefs in jiang 7 well , shibaozai and laolongdong etc . are patch reefs 连结生物则为蓝绿藻、 tubiphytes以及包覆状tabulozoa 。附礁生物种类繁多、有苔藓虫、腕足类、有孔虫、蜓、棘皮类等。
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