火山活动与沉积盆地的形成和演化

我国大陆地壳进入中生代以来,发生了较其他陆壳更为强烈的构造运动,印支,燕山,喜马拉雅运动都是发生在我国大陆地壳以裂陷作用为主的典型运动,在中生代板块构造的特定时代和以裂陷作用主主的构造运动作用下,岩浆活动沿断穿骨石圈和地壳的深断裂发生,上涌至地壳地面形成火山岩带和地层格架中的火山岩层,上涌至地壳内部形成壳内流体相央浆房而成为高导层,火山活动是由中生代生成的太平洋板块和我国大陆地壳俯冲,使大陆地壳深     

区域矿产资源经济研究的发展趋势及值得注意的若干问题

区域矿产资源经济研究的发展趋势是：区域矿产资源经济研究与人口、环境科学汇流,更加注重应用研究,研究目标的多元化,研究地域的扩大化,研究方法的现代化．值得重视的几个问题有：区域矿产资源可持续发展问题;区域矿产资源合理有效利用的客观标准;区域矿产资源的经济和人口承载能力;计算机技术的应用;人工神经网络等现代科学技术的应用;区域矿产资源资产评估的理论与方法;区域矿产资源经济研究模型系统的开发等．     

云南元江地区铜矿GIS预测时的找矿有利度和空间相关性分析

以云南元江地区铜矿ＧＩＳ预测为例,介绍了线型异常和面型异常的找矿有利度分析方法,并给出断裂、物化探异常和地层找矿有利度分析的结果．给出了计算空间相关性的公式,并研究了不同元素化探异常的空间相关性．研究了相关元素的组合异常,论证了在矿产资源预测中应用组合异常的必要性．     

Prediction of the Earlier Strong Aftershocks in the Earthquake Sequences by the Pseudo-Periodicity Method

We propose the pseudo-periodicity method and its quantitative prediction indexes for the occurrence time of earlier strong aftershock. We conducted tests of regressive prediction, and the R-value of the tests is 0.45, indicating that this method is effective for prediction.     

Characteristics of the Variation of Cross Fault Short-Baseline and Short-Range Leveling in Western Yunnan Earthquake Test Site Before Lijiang M_S7.0 Earthquake

Results of analysis of variation of cross fault short-baseline and short-range leveling in Western Yunnan Earthquake Test Site (WYETS), results show that among five observation stations of cross fault short-baseline and short-range leveling in WYETS before the Lijiang MS7.0 Earthquake occurred in February 1996 only Yongsheng observation station (epicentral distance 82 km) located at Chenghai fault shows great variation about one year before the earthquake. And the nearest observation station, Lijiang (epicentral distance 42 km); presents great coseismic variation, but does not show obvious anomalous variation before the earthquake. There are no significant variations related to the earthquake at the other three observation stations. Two methods are used in analysis of the observed data and some valuable results have been obtained.     

Quaternary Tectonic Deformation in Front Area of the Tianjingshan Fault Zone and Analysis of Its Genesis

Through detailed field mapping, the tectonic deformation in the front area of the Tianjingshan fault zone is discussed in this paper. The result shows that there are two Quaternary thrust (oblique) fault-fold belts, namely: the Miaoshan and Hongjianshan fault-fold belts, in the front area of the south wall's strike-slip movement of the Tianjingshan fault zone. The Hejiakouzi Quaternary anticline, which is a part of the Miaoshan fault-fold belt, is mainly discussed. It is pointed out that the fold began to grow in the middle part near Hejiakouzi in the mid-late stage of middle Pleistocene epoch and then gradually developed towards the ends in late Quaternary. Based on the Cenozoic structural features, the genesis of the Miaoshan and Hongjianshan fault-fold belts and the kinematic relation they bear with the Tianjingshan fault zone are analyzed.     

近场立交成因模式及强震预报

详细地讨论了强震孕育的近场立交成因模式,将其应用于强震的预报,并提出了强震预报的思路.作者还进一步讨论了横向断层对传播断层的止裂条件及深部断层的存在等问题.