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1976年以来,先后在我国辽宁省莱河及河北省迁西县发现了高铁铁橄榄石,它们的化学通式为Fe~(3+)Fe_2~(3+)(SiO_4)_2;产在辽宁省莱河的高铁铁橄榄石曾被命名为莱河矿。作者曾用穆斯鲍尔效应研究过这种矿物。本文的目的是用X射线、红外光谱及穆斯鲍尔谱研究采自河北省的高铁铁橄榄石的热处理产物,探讨它在氧化和还原条件下的变化,这对阐明该矿物的成因和演化将是有益的。 河北省高铁铁橄榄石产在一种特殊的英榴易溶岩中,它与石英、石榴石、易溶石、磁铁矿和石墨共生,在光片和薄片中可以看到它交代易溶石,而被磁铁矿切穿。石榴石又往往包裹上述矿物。本研究所用的高铁铁橄榄石的化学成分为:SiO_231.96,Fe_2O_335.31,Al_2O_3
Since 1976, high-iron feldspar has been found in Laihe, Liaoning Province and Qianxi County, Hebei Province, and their chemical formulas are Fe 3+ Fe 2 + 3 SiO 4. High-speed rail fossil province Laohe had been named Laihe mine. The authors have studied this mineral with the effect of the Muspel Bauer. The purpose of this paper is to study the heat treatment products of fayalite from Hebei province by X-ray, infrared spectroscopy and Muscourt Bauer spectroscopy, and to explore the changes under the conditions of oxidation and reduction. This is of great help in elucidating the genesis and evolution of the mineral Will be helpful. Hebei province high-speed rail fossil olivine is produced in a special kind of English pomegranate lava, which with quartz, garnet, easily soluble stone, magnetite and graphite symbiosis, can be seen in the light sheet and thin film account for the easy-soluble stone , But cut by magnetite. Garnets are often wrapped in the above minerals. The chemical composition of high-iron forsterite used in this study is: SiO 2 31.96, Fe 2 O 3 35.31, Al 2 O 3