浅谈地震科技档案鉴定的意义

地震科技档案鉴定是档案管理部门的一项重要工作。针对地震科技档案鉴定工作的重要意义进行了分析，定期对地震科技档案鉴定有利于优化馆藏、对重点地震科技档案的保管；并对提高档案工作服务水平和档案人员业务素质进行了探讨。     

涡阳-凤台地区地震活动和地震构造

本文运用深浅部构造对比研究，结合历史地震资料、中强震观测资料分析和地震活动性分析结果，探讨中强震过渡区地震构造环境和地震韵律的研究途径，以涡阳～凤台地区为例，对其进行综合剖析，推演未来中强震发生的空间部位，并预测该地区未来可能发生地震的震源深度、震级、地震长轴衰减方向、发生时间等参数。     

Re-discussion on the Jiaochang Arcuate Structure, Sichuan Province, and the Seismogenic Structure for Diexi Earthquake in 19331

The Jiaocbang arcuate structure is one of the numerous arcuate structural belts in Sichuan. The present paper gives a further argument about the characteristics of that arcuate structure and the new activity of the Songpinggou fault and affirms that the Songpinggou fault is an active fault in the Holocene epoch. The Diexi M7.5 earthquake took place in 1933 on the west wing of that arcuate structure, near the apex of the arc. Many authors have given quite different opinions about the genetic structure of that earthquake. The authors have made on-the-spot investigations time and again over recent years. Besides this, the authors have also further studied the shape of intensity contour lines, the distribution characteristics of ground surface seismic hazards, the left-lateral dislocation of buildings along the Songpinggou fault, the NWtrending ground fissures that developed on the ground surface after earthquake, and so on. On this basis, it is still considered that the seismogenic fault of the 1933 Diexi M7.5 earthquake was the Songpinggou fault on the west wing of the Jiaochang arcuate structure.     

镍铜硫化物矿石中磁黄铁矿固溶体的退火及其选矿意义

磁黄铁矿固治体从硫化物熔体结晶后，在缓慢冷却过程中经历了显著的退火。出治和出治体的租化是固治体退火的两种方式。叶片状的单斜磁黄铁矿和“火焰状”的镍黄铁矿原始出治相在降温过程中均可发生退火和租化。分布于磁黄铁矿等矿物粒间或包于磁黄铁矿粒内的粒状镍黄铁矿，不只是高温出治的直接产物，有一部分可能是由火焰状出治体租化而成的。磁黄铁矿中单斜变体的出治和租化可使矿石的磁性发生改变，镍黄铁矿出治体的租化使含镍矿物的粒度加大。因而，退火作用对矿石的选矿工艺性能有着显著影响。     

浅议地震电子档案的管理与利用

电子计算机的广泛应用，导致信息化社会的到来。当今的知识和信息促进了科学技术和经济的发展，而知识和信息是以电子化、数字化、网络化的形式传递。目前在科学技术活动和经济运行过程中产生了与传统纸质档案不同的档案形式——电子档案，电子档案的出现是人类社会文明进步的结果。档案部门应把电子档案的管理与利用当作新的研究课题。