Marlstone is a limestone based clay that acts similar to Marl.

泥灰岩泥灰作用相似的一种以灰为基础的粘土。

Spires of limestone tufa rise from the shores of California's Mono Lake.

图为灰泉华柱耸立在加利福尼亚的莫诺湖之滨。

Calcifuge Describing plants that grow on soils containing very little calcium carbonate, such as sandy or peaty soils and cannot grow on basic substrates such as most chalk and limestone soils.

在酸钙含量低的土壤中存的植物，例如在沙地或泥地中。这种植物在灰之类的碱性基质中不。