奥援暗沙
来自维基百科，自由的百科全书
奥援暗沙是南海南沙群岛岛礁之一，位于南薇滩东北方，位于南威岛南约23海里。北纬8度09分，东经111度58分。属沉没环礁，为一群散列暗礁。
一群散列的暗礁，底质为珊瑚的浅滩。宽3.7km，浅处水深6.4m[3]。
北纬8度9分，东经111度58分海域内
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