新年贺辞     

陶培荣 《地质学刊》2010,34(1):I0001-I0001

在新世纪迈入第一个10年、辞旧迎新的美好时刻,我谨代表学会理事会并以我个人名义,向辛勤工作在国土资源系统、石油、煤炭、有色金属、建材、大专院校以及科研院所的广大干部、职工和学会的全体理事、会员致以崇高的敬意和亲切的问候!向长期以来关心和支持学会工作的各级领导和各界人士,表示衷心的感谢和诚挚的祝福!  相似文献   

序     

陈华文  张阿根 《上海国土资源》2010,31(Z1)

值此华东六省一市地学科技论坛在沪召开之际,我谨代表上海市规划和国土资源管理局,代表冯经明局长,热忱欢迎各位与会代表,并向华东地区广大地学科技工作者致以崇高敬意!华东六省一市地学科技论坛自2002年在上海首次举办以来,在山东、江苏、浙江、  相似文献   

华东地区视应力场的研究   总被引：2，自引：0，他引：2  

黄显良  刘东旺  沈小七  庆梅 《地震地磁观测与研究》2005,26(6):29-32

我们应用华东地区1970年以来记录到的地震资料，运用视应力的定义，对华东地区视应力大小进行了估计，并对华东地区1970年以来发生5级以上12次地震进行了分析，总结震前视应力场的变化情况，为我们地震危险区的判定及地震趋势的预测具有一定的参考价值。  相似文献   

华中华东地区上空水汽平衡状况   总被引：1，自引：0，他引：1  

崔玉琴 《水文》1998,(1):14-21

华中华东地区,为我国纬度较低,涨岸线最长的地区。该区雨水资源,地表水资源量均居全国之首。其维系因子－空中水汽,业经本文计算,其年总蓄留量＋１９７７４．５４亿ｍ＾３,相当水深１３９７ｍｍ,为水资源总量的１．７６倍,全国第一。  相似文献   

Research on the Terrane Tectonics in China     

郭令智  舒良树等 《中国地球化学学报》1996,15(3):193-202

This paper summarizes the latest advances in research on the terrane tectonics of China.The terranes of China distributed around various plates may be divided into four terrane belts of different ages and sizes.i.e.,the East China,Northwest China,Southwest China and Qilling-Dabie terrane belts.Among them,the East China belt may be subdivided into three composite terrane groups;each terrane proup is composed of several terranes that were formed roughly at the same time and have distince geologic histories.The accretion of China‘s terranes involver three types;the collision type,the flake-thrusting type,and the docking type.The results of the lates study in the five widening fields and some advances in the methods of research on the terrane tectonics in China are presented in the present paper.  相似文献   

Geological and Geochemical Characteristics and Petrogenesis of the Anqing—Lujiang Quartz Syenite Rock Belt,East China     

章邦桐  张富生 《中国地球化学学报》1989,8(2):155-170

The Anqing-Lujiang quartz syenite rock belt consists of the Huangmeijian, Chengshan and Dalongshan composite batholiths which intruded into the Mesozoic strata. The country rocks were subjected to thermal contact metamorphism with little sign of folding and regional metamorphism. The rock belt is Late Yenshanian in age with a Rb-Sr isochron age of 135 Ma. Major rock types are quartz syenite and, to a lesser extent, syenite porphyry and alkali feldspar granite. Rock-forming minerals are dominantly potash feldspar (more than 50%) and lesser amounts of plagioclase and quartz. Mafic minerals, mostly Mg-biotite with lesser amounts of amphibole and pyroxene, are rare. Occasionally, alkalic mafic minerals (aegirine, riebeckite) are found. Characteristic accessary minerals of the earlier intrusives are magnetite, sphene and apatite and those of the later intrusives are ilmenite and zircon. Typologic distribution and evolutionary trend of zircon population are very similar to those of granites of mantle origin as suggested by Pupin, J. P. Petrochemically, the rock belt is poor in Ca but rich in alkali and Al with Na₂O+K₂O > 10%. It belongs to the K-Na transitional series, with a high alkalinity ratio (A. R. = 3–7) and a K /Na (atom) ratio close to unity. Rocks in the belt are rich in REE which tends to decrease from the early to the late stage, belonging to LREE type. The initial Sr ratio is 0.7078–0.7064. The rock belt is the Mesozoic anorogenic product of alkalic magmatic activity from a deep-seated source. According to a mantle-crust mixing model for Sr and Pb isotopes, it is estimated that 60.2–53.8% of the materials has been derived from the mantle. Additionally, its rich alkali, poor water content and anorogenic characteristics suggest that the belt is similar to the A-type granites.  相似文献   

华东地区中强地震与太阳黑子数时间变化的呼应   总被引：4，自引：0，他引：4  

刘长海  陈宇卫  刘义高 《地震地磁观测与研究》2003,24(5):57-59

安徽地区、江苏—山东南部地区中等地震优势分布于太阳黑子数时间变化的“峰区”，亦即为5级以上地震易发时段。黄海地区中等地震优势分布于太阳黑子数的“谷区”。  相似文献   

华东地震科技信息工作的区域协作化建设     

梁凯利  姚明慧 《地震学刊》2002,22(1):61-64

通过回顾和总结10年来华东地震科技信息工作区域协作化建设的经验，提出在经济和科技高度发达的形势下，地震科技信息工作走区域作化之路，实现资源共享，共同发展应是上佳选择。  相似文献   

华东地区中等地震活动条带整体性迁移特征的研究     

顾方琦  沈小七  张春芝 《地震地磁观测与研究》2007,28(2):32-35

在较详细分析华东地区1970年以来中等地震活动规律的基础上,对华东地区中等地震活动条带及迁移规律进行了研究,发现该地区的中等地震活动具有由西向东的整体性迁移特征,其迁移速率约25 km/a,可能起源于地幔应力波.对华东地区而言,目前东部的北西向条带北部,是未来最有可能出现"关门"地震的区域.该项研究为地震趋势的判断提供了一种参考.  相似文献   

华东铀成矿规律研究   总被引：3，自引：0，他引：3  

唐相生  王圣祥 《铀矿地质》2000,16(5):265-271

华东区域铀成矿条件优越,铀矿资源丰富,是我国铀矿的主要产区之一。本文在１：２００万华东铀矿编图研究成果的基础上,着重阐述了区内铀矿化的时空分布规律及区内主要铀矿化类型（火山岩型和花岗岩型）的铀成矿规律,提出两条成矿带交接部位和以花岗岩为基底、叠加中生代火山的活动区是大型、超大型铀矿床成矿的有利部位。  相似文献