山地冰川冰消后(paraglacial)沉积的粒度与石英颗粒表面特征——以贡嘎山东坡为例 |
王杰, 雷满红, 郑利敏 |
Grain size and quartz grain SEM microtextures of glacial tills and paraglacial deposits: a case study on the eastern slope of Mt. Gongga |
Jie WANG, Manhong LEI, Limin ZHENG |
图2 贡嘎山东坡不同成因沉积的石英砂SEM(扫描电子显微镜)外形特征:石英颗粒外形(a);尖棱角(b);次棱角(c);贝壳状断口(d), (e);擦痕(f);压碎深坑(g);溶蚀坑(h);蜂窝状溶蚀表面(i);硅质鳞片(j);平行解理面(k);蚀缝(l) |
Fig. 2 SED morphology and surface textures of quartz grain from various sedimentary environments on the eastern slope of Mt. Gongga: morphology of quartz grain (a); sharp corner (b); sub-angular (c); conchoidal fracture (d), (e); striation (f); crushed deep pits (g); solution pit (h); honeycomb solution surface (i); silica precipitation (plates & sheets) (j); cleavage (k); solution lines and striae (l) |
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