搀合

huǒ shān shā yǔ tiě huī jīng nián lěi yuè de chān hé ér chéng zhè piàn hēi sè hǎi tān

火山砂与铁灰经年累月地搀合而成这片黑色海滩。

Through the years, volcanic sand mixed with iron ash to form this black beach.