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来自维基百科,自由的百科全书
雜砂岩(英語:greywacke)(德語:grauwacke)是一種碎屑沉積物,其特徵通常是硬度高、顏色深、由石英、長石和岩石碎片組成的沉積岩,屬於顆粒挑選度低,圓度差的結構不成熟的沉積岩,通常在古生代地層中發現[1]。雜砂岩是一種濁積流造成的海相沉積岩。通常在大陸架邊緣。[2]
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