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橄榄石是与铬铁矿成因有关的造岩矿物之一,为探讨铬铁矿的成因,有必要对橄榄石中Fe~(2+)的有序、无序分布进行研究。本文用穆斯鲍尔谱学研究了与我国陕西松沟铬铁矿共生的橄榄石中Fe~(2+)在八面体配位位置上的分布,为该矿物形成条件的探讨提供一定的信息。实验是在电磁推动的等加速度穆斯鲍尔谱仪上进行的。实验装置作透射几何安排。从样品透射的γ射线,由一个端窗形的流气式正比计数器接收后,送入多道分析器以多路定标方
Olivine is one of the rock-forming minerals related to the chromite origin. In order to explore the origin of chromite, it is necessary to study the orderly and disorderly distribution of Fe ~ (2+) in olivine. In this paper, the distribution of Fe ~ (2+) in the octahedral coordination sites of olivine symbiotic with the Songougou chromite in Shaanxi Province of China was studied by using Musselbaal spectroscopy to provide certain information for the discussion on the formation conditions of this mineral . Experiments were performed on an electromagnetic-driven, equal-acceleration, Muscaull Bauer spectrometer. Experimental setup for transmission geometry. The gamma rays transmitted from the sample are received by an end-window shaped flow-through proportional counter and fed to a multichannel analyzer for multiplex calibration