The eustasy explanation put forward by Rona is also possible.
罗纳提出的海面升降也是可能的。
It turns out that the dey factor for the formation of sponge reef was sea level changes and that the growth of reef was in concord with relative eustasy rise.
研究表明，甲马矿区海绵礁形成的关键因素是海平面变化，其主体的发育与海平面相对上升同步。
It turns out that the dey factor for the formation of sponge reef was sea level changes and that the growth of reef was in concord with relative eustasy rise.
研究表明，甲马矿区海绵礁形成的关键因素是海平面变化，其主体的发育与海平面相对上升同步。
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