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graywacke 英/ ?ɡre?w?k / 美/ ?ɡre??w?k / - 1
地球科学 杂砂岩 The clastic sedimentary rocks in this area are classified as graywacke and arkose, and their material source should be a mixture of mafic or its partial melting product, metamorphosed basement and/or its anatexis magma, as well as granites. 该区碎屑沉积岩均属杂砂岩与长石砂岩,其物质来源上主要是镁铁质及其变质深熔产物、古老基底物质及其深熔产物及花岗岩类。 变质杂砂岩 硬砂岩
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