【摘要】 <正> 本文研究的红帘石产于海南岛石碌铁矿。研究表明,红帘石的产出特征从一个侧面很好地反映了铁矿的原始沉积环境和矿床的形成过程;而决定红帘石形成的条件是高氧逸度和Mn³⁺进入红帘石结构可以获得很大的晶体场稳定能。更多还原

【Abstract】 Piemontite discovered in the Hainan Island has three different geneses: reg-ional metamorphism, contact metamorphism and hydrothermal process. Our studyhas shown that the main factor controlling the stability field of piemontite is thehigh oxygen fugacity and the acquisition of crystal field stabilization energy byMn³⁺ in piemontite structure. The ordering of cations (e.g., Al, Fe³⁺, Mn³⁺) inpiemontite structure indicates that the occurrence of piemontite under lowertemperatures is more advantageous than under high temperatures.更多还原