greywacke是什么意思？

greywacke

英['greɪwæk] 美['greɪˌwæk]

• n. 杂砂岩，硬砂岩；

例句

• This product has the quality of natural greywacke and lasting long property. 它具有天然石材质硬、久、重量感的特征,而且富质朴之美,其强烈的表面质感,带有微妙明暗变化的朴素自然色彩,韵味独特.
• The sedimentary members are largely turbidites of greywacke facies. 沉积岩的组成大部分为杂砂岩相的浊积岩.
• The sediments are detrital and largely of greywacke facies. 沉积岩为碎屑质,大部分属于杂质砂岩相.