摘要
通过对河成沙、海成沙、风成沙的颗粒进行筛选、称量、观察、对比,分析得出沙物质的粒径范围,同时也对沙粒的磨圆度做了分析。结果表明:风成沙为3.14%的粉沙,而河成沙为0.3%,海成沙(Ⅰ、Ⅱ)分别为0.07%和0.03%。并且,河成沙含有的粗沙和极粗沙最多,为73.35%;海成沙(Ⅰ、Ⅱ)分别为5.12%和0.15%;风成沙为15.71%。对磨圆度而言,风成沙的磨圆度最好,其中圆为26%,次圆为54%;海成沙(Ⅰ、Ⅱ)次之,其中圆分别为3%和4%;次圆为30%和29%;河成沙的磨圆度最差,圆为4%,次圆为14%。
Through screening,weighing,observing and comparing the particle of fluvial sand,sea sand and aeolian sand,the range of size of sand material was obtained and the degree of roundness of sand particle was analyzed.The results showed that the content of silt sand in aeolian sand,fluvial sand and sea sand（Ⅰ,Ⅱ） was 3.14%,0.3%,0.07% and 0.03% separately.The content of coarse sand and extremely coarse sand was 73.35% in fluvial sand,the one in sea sand（Ⅰ,Ⅱ） was 5.12% and 0.15% separately,the one in aeolian sand was 15.71%.The roundness of aeolian sand was the highest,with 26% for round,54% for secondary round.For sea sand（Ⅰ,Ⅱ）,the content of round and secondary round was 30% and 29% separately.The roundness of fluvial sand was the lowest,with 4% for round and 14% for secondary round.
出处
《内蒙古林业科技》
2011年第2期25-28,共4页
Journal of Inner Mongolia Forestry Science and Technology
关键词
粒径分析
磨圆度
风成沙
河成沙
海成沙
size analysis
degree of roundness
aeolian sand
fluvial sand
sea sand
