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[期刊论文] 作者:苏文博,何龙清,王永标,龚淑云,周湖云, 来源:中国科学D辑 年份:2004
More than 20 K-bentonite beds were discovered from the Wufeng Formation and the lowest Longmaxi Formation in two sections, both adjacent to the Ordovician-Silur...
[期刊论文] 作者:苏文博,何龙清,王永标,龚淑云,周湖云, 来源:黑龙江科技学院学报 年份:2003
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者:苏文博,何龙清,王永标,龚淑云,周湖云, 来源:Science in China(Series D:Earth Sciences) 年份:2003
More than 20 K-bentonite beds were discovered from the Wufeng Formation and the lowest Longmaxi Formation in two sections, both adjacent to the Ordovician-Silur...
[期刊论文] 作者:马喆生,李国武,施倪承,周湖云,叶大年,D.YU.PUSHC, 来源:中国科学:地球科学英文版 年份:2001
The crystal structure of astrophyllite K2Na(Fe, Mn, Mg, □)7[Ti2(Si 4O12)2|O3](OH, F)4 has been refined. The dimensions of the triclinic unit cell are: a = 0.53...
[期刊论文] 作者:马喆生,李国武,施倪承,周湖云,叶大年,D. Yu. Pushcharovsky, 来源:中国科学(D辑:地球科学) 年份:2000
对星叶石K_2Na(Fe,Mn,Mg,□),[Ti_2(St_4O_(12))_2| O_3](OH,F)_4进行了晶体结构的精测, 求得晶胞参数:a=0.535 9(2)um,b=1.1614(4)um,c=1.1861(4)um,α=113.16(2)°,β =103.04(2)°,γ=94.56(2)°.晶胞体积V=0.6495(5)nm~3.单位晶胞中的分子数Z=1,空 间群为P1.结构测定的精度,其偏离因子为R=0.057.根据其晶体结构的特征,与曾测 定的单......
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