镶嵌胶结
指胶结物少,颗粒之间呈凸凹、甚至缝合状直接接触的胶结方式。有时碎屑与硅质胶结物区分不开,镶嵌胶结是因成岩期的压固或压溶作用,致使颗粒接触更加紧密。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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