地洼学说的理论结构和发展纲领

地洼学说(活化区理论)自1956年诞生以来,经受过35年的实践检验,已发展成为包括五个组成部分和两个衍生学科的理论体系。它的理论结构是以第一个组成部分,即大陆地壳中发生于地台阶段之后,与地槽区不同特征的一种新型活动区—活化区即地洼区概念为内核,保护层为其余的组成部分和衍生学科,即地壳动定转化递进说、递进(地洼)成矿理论、壳体概念和地幔蠕动热能聚散交替假说,以及构造地球化学和成矿构造学。 地洼学说是属于作者建立的“历史—因果论大地构造学”范畴,它的发展纲领应是运用“历史—动力综合分析法”的研究方法,贯彻理论实践并重和切合生产需要的学术路线,采用充实和加固内核以及调整某些保护层的方式,按照自我完善与学百家之长相结合的原则,研究领域包括学说本身的进一步发展和运用它以解决实际问题。 内核的充实和加固包括两个方面;(1)理论方面的研究,例如地洼区的鉴别依据、类型划分、形成时代、分布地区、地壳运动等方面的问题。(2)实用方面的研究,例如运用区域地质、成矿规律及找矿预测、地热、水文地质、地貌、新构造等方面的问题。     

陕西潼关石英脉型金矿床中石英的标型特征及其找矿意义

本文对陕西潼关石英脉型金矿床中石英的比重、比磁化率、晶胞参数、化学成分和包裹体等特征进行了比较详细的研究,重点用红外光谱研究了石英中包裹体的 CO_2和 H_2O 相对光密度与含金性关系。     

复杂矿石中滑石的测定

含滑石复杂矿石试样经650℃焙烧,使其中绿泥石、菱镁矿等变得能迅速溶于1+1 HCl中,而滑石溶解率很低。残渣用HF-HClO_4或KOH处理,用火焰原子吸收法或滴定法测定MgO,计算滑石量。10余种共存矿物在一定范围内不干扰测定。     

垭头铀矿床控矿沉积相及成因

垭头铀矿是湘西沅麻盆地白垩系红层中较为典型的沉积矿床,位于盆地东北缘,靠雪峰隆起,置于Z_b,(?)_(1x),地层之上。本文是在综合野外实践的基础上,研究矿床的沉积特点、控矿沉积相以及矿床成因。     

An interactive system to assist mineral identification in ore microscopy

An interactive computer system has been developed to assist the mineral identification in ore microscopy. The reference file of the system consists of optical, mechanical, and chemical properties of about 130 ore minerals. The properties are name, chemical formula, color, bireflectance, anisotropism, internal reflection, reflectance at wavelengths of 470, 546, 589, and 650 nm, and polishing hardness and micro-indentation hardness. All the properties except reflectance and microindentation hardness are qualitative or semi-qualitative. Most of the properties are given as characters relative to the more common minerals. This implies that most of the identification processes advance on the basis of the comparison between a subject mineral and coexisting minerals. For this reason, the system asks a user at first to input already identified mineral names. This is quite different from the mineral identification procedures used in petrographic microscopy. To reduce the number of possible minerals, the system presents a series of questions to a user, and the user selects any of the prepared answers according to his observation. The user can also choose any desired question independently of the sequence. The user is expected to be able to recognize some common minerals, such as pyrite, chalcopyrite, galena, and hematite, without the assistance of the system.