摘要
作者通过对109块海相火山辟屑岩概率累积曲线的研究发现,海相火山碎屑岩与相同沉积环境和沉积作用的陆源斗屑岩相比,其概率累积曲线通常具较大的斜率,二者在特征和成因上难于对比.主要原因是:火山碎屑曾遭受过火山喷发分选,风的分选和波浪、潮汐分选等地质作用的叠加分选结果。
Based on the study of 109 thin sections of the Devonian marine volcanoclastic rocks probability accumulation curves in east Zhungeer,the author discovered that the slopes of these curves are commonly larger that the slopes of the terrigenous clastic rocks probability accumulation curves of the same sedimentary environments and process. It is difficult to correlate them in characteristics and genetic significances. Because the marine volcanoclastic rocks are repeated sorted by volcanic eruption ,wind,wave and tide.
出处
《矿物岩石》
CAS
CSCD
1993年第2期46-48,共3页
Mineralogy and Petrology
关键词
海相
火山碎屑岩
概率累积曲线
marine volcanoclastic rocks
probability accumulation curves
Zhungeer
Devonian
