泥灰岩(英语:marlmarlstone)是一种富含碳酸钙石灰的泥土或泥岩,其中包含不同数量的粘土矿物淤泥。泥灰岩中大部分含碳矿物质通常为方解石,但也存在霰石白云石菱铁矿等含碳矿物质。

泥灰岩(法国诺曼底)
西西里岛南侧土耳其阶梯海岸的泥灰岩岩层

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