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
表3 磨西台地不同层位沉积与山地东坡冰碛、冰消后沉积粒级组成和参数对比
Table 3 The grain size composition and parameters from paraglacial deposits and the deposits in different layers of the Moxi Platform
剖面位置样品编号层位/剖面砾/%砂/%粉砂+黏土/%平均粒径(Mz)分选系数(Sd)偏度(SK1峰度(Kg)
A剖面MX-01底部69.1627.932.912.252.020.480.94
MX-02底部61.3835.682.932.162.010.490.93
MX-03中上部61.1236.532.351.971.820.471.19
MX-04中上部53.9242.673.412.071.920.481.04
MX-05上部48.5849.581.841.121.270.361.55
B剖面MX-06底部40.5948.6710.752.592.120.391.01
MX-07底部37.7849.3212.903.122.340.320.87
A剖面MX-11中上部33.8560.355.800.821.110.321.87
MX-12中部57.9738.973.061.851.780.51.22
MX-13中部43.3251.934.752.251.930.490.94
MX-08河床3.8984.7311.383.531.480.041.28
MX-09河床2.8796.430.701.331.140.331.49
MX-10河床1.6297.720.661.051.130.341.80
贡嘎山东坡冰碛与冰消后沉积新冰期冰碛52.1039.058.852.361.981.091.09
MIS3冰碛62.5531.555.892.061.760.461.13
冰川泥石流40.3456.253.411.201.410.431.60