Hydrothermal synthesis and phase relations of the multi-component sulfide system.

本文用三年的时间，用水热合成的方法研究了以下三种硫化物体系的相平衡关系。包括闪锌矿、磁黄铁矿、铝榴石等常见矿物的Fe-Mn-Zn-S体系，含多种银亚硫酸盐矿物的Pb-Ag-Bi-S体系，含大部分镍矿矿物的Fe-Ni-S体系。Fe-Mn-Zn-S体系；在350℃的水热条件下，确定了体系的相平衡关系，闪锌矿中含有大量的铁和锰，而闪锌矿中含有铁而不含锌。纤锌矿被称为闪锌矿（1020 C）的高温晶型，由于含有Mn，在350 C的低温下稳定存在，在该体系的相图中具有大面积的固溶体。Pb-Ag-Bi-S体系；根据该体系在400℃下的水热实验结果，合成了以下9种矿物。方铅矿-闪辉石，方铅矿-闪辉石，闪辉石，闪辉石，闪辉石，闪辉石，闪辉石，便雅明石，铋辉石，银辉石。多数矿物以Ag^+ + Bi^<3+> = Pb^<2+>为固溶体。方铅矿-闪辉石在两种矿物之间仍具有完整的固溶体，并首次合成了榴辉石同源系列（Macovicky & Karup-Mphiller, 1970）。在水热条件下，得到了体系在400℃时的相图。Fe-Ni-S体系；该体系在500℃以上已基本确定，在400℃下进行了水热合成，明确了体系的相关系。MSS作为FeS和NiS之间的完美固溶体仍然是稳定的。

The phase equilibrium relations on the following three sulfide systems have been studied by means of hydrothermal synthesis in the profect for three years. The Fe-Mn-Zn-S system, including common ore minarals of sphalerite, pyrrhotite, and alabandite, the Pb-Ag-Bi-S system of many kinds of Ag-sulfosalts minerals, and the Fe-Ni-S system containing most of Ni-ore minerals.The Fe-Mn-Zn-S system ; The phase equilibrium relations of the system have been determined at 350ﾟC under hydrothermal conditions, Sphalerite could contain considerable amount of both Fe and Mn, while alabandite contains Fe but no Zn. Wurtzite, which has been known as a high temperature polymorph of sphalerite (1020ﾟC) exist stably at low temperature as 350ﾟC, because of containing Mn, and has a wide area of solid solution in the phase diagram of this system.The Pb-Ag-Bi-S system ; Asa results of hydrothermal experiments of the system at 400ﾟC, the following nine menerals were synthesized. Galena-matildite ss., galenobismutite, lillianite, cannizzarite, heyrovskite, pavonite, benjaminite, bismuthinite, and argentite. Most of minerals have a solid solution by substitution of Ag^+ + Bi^<3+> = Pb^<2+>. Galena-matildite ss. has still complete solid solution between two minerals and lillianite homologous series (Macovicky & Karup-Mphiller, 1970) was synthesized first in this experiments. The phase diagram of the system at 400ﾟC was obtained under hydrothermal conditions.The Fe-Ni-S system ; The system which has been almost completely determined above 500ﾟC, was studied by hydrothermal synthesis at 400ﾟC, and the phase relations of the system were made clear. MSS is still stable as a perfect solid solution between FeS and NiS.