Structure refinement of astrophyllite

来源 :中国科学:地球科学英文版 | 被引量 : 0次 | 上传用户:dalianmaowh
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
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 = 0.5359(2) nm, b = 1.1614(4) nm, c = 1.1861(4) nm, a = 113.16(2)°, b = 103.04(2) °, g = 94.
其他文献
The active North China block consists of three second-order blocks: Ordos, North China Plain, and East Shandong-Huanghai Sea blocks. Two active tectonic zones,
Row crops are a kind of typical vegetation canopy between discrete canopy and continuous canopy. Kimes et al. studied the directional thermal radiation of row c
Earthquake and its resultant tsunami, as a kind of disaster events in geological history, may be recorded as event deposits of seismite and tsunamite. Typical c
At the hypothesis of big leaf, an ecosystem photosynthesis-transpiration coupling cycle model was established by the scaled SMPT-SB model from single leaf to ca
Baihua meta-igneous complex consists mainly of pyroxenite-gabbro(diorite)-diorite-quartz diorite. They form a complete comagmatic evolutionary series. The geoch
Helium, neon and argon isotope compositions of fluid inclusionshave been measured in hydrothermal sulfide samples from the TAG hydrothermal field at the Mid-Atl
[1]Rose,W. I., Chesner, C. A., Dispersal of ash in the great Toba eruption, 75 ka, Geology, 1987, 15: 913-917.[2]Acharyya, S. K., Basu, P. K. ,Toba ash on the India
期刊
To link regional land use/cover changes with environmental effects, land cover changes are required to reflect vegetation successions, whereas the land cover cl
Based on the studies on diatom, ostracods and magnetism on a core acquired from lacustrine sediments, as well as correlation analysis between concentration of a
Modeling land use scenario changes and its potential impacts on the structure and function of the ecosystem in the typical regions are helpful to understanding