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中强地震发震构造标志浅析——以2023年积石山M_(S)6.2地震为例
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作者 张军龙 徐岳仁 +1 位作者 李文巧 陈峰 《地震》 CSCD 北大核心 2024年第1期226-234,共9页
地震地表破裂是地震发生的重要特征,是研究地震动力学、构造变形的重要手段。一般认为,M6 3/4以上的地震才会形成地表破裂。但近年来,也有M6.0左右的地震发生了地表破裂。本文旨在探讨中强地震地表破裂的识别方法。中强地震发震构造的... 地震地表破裂是地震发生的重要特征,是研究地震动力学、构造变形的重要手段。一般认为,M6 3/4以上的地震才会形成地表破裂。但近年来,也有M6.0左右的地震发生了地表破裂。本文旨在探讨中强地震地表破裂的识别方法。中强地震发震构造的识别具有一定的挑战性,主要表现在以下几个方面:(1)中强地震地表破裂的规模(位错量、宽度、长度和深度)较小,容易被黄土层厚覆盖,掩盖地表破裂的痕迹,不易识别;(2)非构造成因裂缝干扰,使得难以区分构造成因地表破裂。本文以2023年积石山M_(S)6.2地震为例,对中强地震构造成因破裂的识别标志进行了初步分析,提出了以下识别标志:(1)地表破裂几何展布和剖面形态,地震伴生的次生灾害(滑坡、崩塌、砂土液化等)的线性分布为识别发震构造提供参考和线索;(2)地表破裂沿破裂走向呈现稳定地穿越不同地貌单元,至少穿越一条沟谷等低凹地貌;(3)地表破裂在地质剖面上表现出稳定的产状;(4)地表破裂伴生构造形态,地表沿破裂发育雁列式褶皱(挤压鼓包)与张裂缝交替出现的现象。本文提出的识别标志为中强地震发震构造的识别提供了新的思路。 展开更多
关键词 青藏高原 拉脊山断裂带 2023年积石山M_(s)6.2地震 发震构造 地震地表破裂
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Gyila:Tibet's First Senior Weather Man
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作者 WANGYUANHONG 《China's Tibet》 2002年第5期36-37,共2页
There is no-one in the field of weather broadcasting in Tibet who does notknow about Gyila: Top 10 Youth of China, China’s Outstanding Scientist, winner of the 5th China Youth Scientific Progress, and winner of first... There is no-one in the field of weather broadcasting in Tibet who does notknow about Gyila: Top 10 Youth of China, China’s Outstanding Scientist, winner of the 5th China Youth Scientific Progress, and winner of first May 4th Medal for Tibetan Youths.What people tell of him are legendary stories. Actually, he is an ordinary man who has cut a brilliant figure in work. 展开更多
关键词 gyila:tibet’s First senior Weather Man In ICI
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HOLOCENE SALINE SEDIMENTARY RECORD IN TIBETAN DONG CO(LAKE) AND ITS SIGNIFICANCE ON PALAEOCLIMATE 被引量:5
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作者 Wei Lejun 1,2 ,Zheng Mianping 2,3 2.Open Laboratory of Saline Lake Resources & Environment ,Chinese Academy of Geological Sciences,Beijing 100037,China 3.Institute of Min 《地学前缘》 EI CAS CSCD 2000年第S1期378-378,共1页
Based on the sedimentary characteristics study of Holocene borax\|bearing mirabilite beds of Dong Co(lake) two sections, DZ01 and DZ02, in the center of North\|Tibetan Plateau,combined with dating of 14 C, applied the... Based on the sedimentary characteristics study of Holocene borax\|bearing mirabilite beds of Dong Co(lake) two sections, DZ01 and DZ02, in the center of North\|Tibetan Plateau,combined with dating of 14 C, applied theory and method of comparative salinology, it is determined that the palaeoclimate framework of Dong Co during early\|middle Holocene, and reckoned the range of the temperature variation. Furthermore, after completing regional analogue, discovered that the palaeoclimate environment is fully comparative and consistent with the synchronous lake\|water retreating trace of Zhaduixiong spits in Zabuye Lake basin, with palaeoclimate changes recorded by pollen in adjacent Zabuye Lake, with Holocene plaeoclimate environment indicated by drilling\|hole in Bangong Co,with palaeoclimate significance traced by δ 18 O value in Qinghai Lake and Siling Co and with the palaeoclimate framework during the 5th Level Arid (Salinization) Extension Period of Quaternary arid center of Western China. 展开更多
关键词 Dong CO tibet HOLOCENE sEDIMENTARY record PALAEOCLIMATE change s
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西藏那茶淌铅锌矿床S-Pb同位素组成及其示踪成矿物质来源 被引量:1
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作者 冷秋锋 李文昌 +2 位作者 戴成龙 唐攀 陈明 《沉积与特提斯地质》 CAS CSCD 北大核心 2023年第1期168-179,共12页
那茶淌矿床位于西藏冈底斯-念青唐古拉成矿带东段,为近年发现的具中—大型远景规模的矽卡岩型铅锌矿床,其成矿物质来源及其成矿背景还缺乏详细调查,制约了矿床成因的深入研究。本文在矿床地质特征研究基础上,对矽卡岩型矿石中主要金属... 那茶淌矿床位于西藏冈底斯-念青唐古拉成矿带东段,为近年发现的具中—大型远景规模的矽卡岩型铅锌矿床,其成矿物质来源及其成矿背景还缺乏详细调查,制约了矿床成因的深入研究。本文在矿床地质特征研究基础上,对矽卡岩型矿石中主要金属矿物闪锌矿、方铅矿、磁黄铁矿的S、Pb同位素组成进行分析,探讨矿床成矿物质来源,并与区域上典型铅锌矿床进行对比,总结区域成矿规律。结果显示,那茶淌矿床金属硫化物的δ^(34)S(‰)值变化于-1.6‰~4.2‰之间,平均值为1.4‰,其频率直方图呈正太分布形式,具幔源硫特征。金属硫化物的^(206)Pb/^(204)Pb值为18.548~18.792,平均值为18.691;^(207)Pb/^(204)Pb值为15.683~15.856,平均值为15.755;^(208)Pb/^(204)Pb值为39.049~39.685,平均值为39.331;铅同位素特征值μ的变化范围为9.61~9.93,平均值为9.74,所有样品μ值均高于9.58,显示铅源具有上地壳源区物质的特征。通过区域成矿作用对比研究,那茶淌矿床S、Pb同位素组成与念青唐古拉带东段典型矽卡岩型铅锌矿床具有相似的特征,成矿物质主要来源于念青唐古拉群结晶基底物质的重熔。 展开更多
关键词 s-Pb同位素 矽卡岩型矿床 那茶淌铅锌矿床 冈底斯–念青唐古拉成矿带 西藏
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China’s Tibetan Population and Population in Tibet 被引量:1
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作者 Guo Daping(China Population information and Research Centre) 《China Population Today》 1996年第2期7-8,共2页
China’sTibetanPopulationandPopulationinTibetGuoDaping(ChinaPopulationinformationandResearchCentre)TheTibet(X... China’sTibetanPopulationandPopulationinTibetGuoDaping(ChinaPopulationinformationandResearchCentre)TheTibet(Xizang)AutonomousR... 展开更多
关键词 China s tibetan Population and Population in tibet
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Present Situation and Projection of Tibet's Population
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《China Population Today》 1997年第Z1期28-28,共1页
The following is up-to-date inform at ion about Tibet's Population.In 1995,there was a population about 2.43 million in the region,according to my estima-tion based on data from the 1990 census and annual sam-plin... The following is up-to-date inform at ion about Tibet's Population.In 1995,there was a population about 2.43 million in the region,according to my estima-tion based on data from the 1990 census and annual sam-pling surveys.The birth rate was 28 per thousand,the death rate ten per thousand and the natural increase rate 18 per thousand. 展开更多
关键词 tibet’s and PROJECTION sITUATION POPULATION PREsENT
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Tibet's Foreign Trade Eyes Bright Prospects
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作者 Wen Duoduo 《China's Foreign Trade》 2005年第20期44-,共1页
关键词 very Us tibet’s Foreign Trade Eyes Bright Prospects
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A Brief Analysis of Development of Tibetan Farmers' and Herdsmen's Economic Cooperatives--A Case Study of Nagqu Area
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作者 Yan HE La YU 《Asian Agricultural Research》 2018年第3期1-4,共4页
Through on-the-spot survey and research on the actual situation of agricultural cooperatives and the conditions of production and living of farmers and herdsmen in Nagqu,Tibet,going through a lot of literature,this pa... Through on-the-spot survey and research on the actual situation of agricultural cooperatives and the conditions of production and living of farmers and herdsmen in Nagqu,Tibet,going through a lot of literature,this paper studies and analyzes the development of local cooperative organizations of farmers and herdsmen,understands the actual benefits of cooperative organizations to farmers and herdsmen,aims to increase the income of farmers and herdsmen,and thus puts forward the main problems and measures on agricultural cooperatives in Nagqu area,in order to offer some suggestions for farmers and herdsmen to get rid of poverty through the conclusion of the study. 展开更多
关键词 tibet Farmers and herdsmen’s economic cooperatives Measures and suggestions
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Tibet's Population Grows
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《China Population Today》 2002年第4期20-20,共1页
关键词 tibet’s Population Grows
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Tibet's Cross-century economy and trade
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作者 Wang Jiayu, director of the department of foreign trade and economic cooperation under the people’s government of the Tibet Autonomous Region 《中国经贸画报》 1998年第10期93-94,共2页
The foreign trade sector in Tibet, developed from scratch, has now formed a complete system composed mainly of ordinary trade enterprises and industrial enterprises enjoying power to handle their own imports and expor... The foreign trade sector in Tibet, developed from scratch, has now formed a complete system composed mainly of ordinary trade enterprises and industrial enterprises enjoying power to handle their own imports and exports, and supplemented by foreign-funded enterprises and businesses conducting limited amount of border trade. 展开更多
关键词 Us tibet’s Cross-century economy and trade
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Tibet: Nearer and Nearer——An Interview With Radi,chairman of the Standing Committee of the People's Congress of Tibet Autonomous Region
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《China Today》 2001年第5期8-10,共3页
关键词 In An Interview With Radi chairman of the standing Committee of the People’s Congress of tibet Autonomous Region Nearer and Nearer tibet
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A Survey of Tibet's Natural Resources
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作者 State-owned Land Office Planning Commission Tibet Autonomous Region 《China's Foreign Trade》 1997年第12期16-17,共2页
Ⅰ. Agricultural resources Agriculture, the foundation of Tibet’s economic development, demonstrates its chief superiority in the following aspects: 1. Concentrated arable land, large and varied grassland and rich wa... Ⅰ. Agricultural resources Agriculture, the foundation of Tibet’s economic development, demonstrates its chief superiority in the following aspects: 1. Concentrated arable land, large and varied grassland and rich waste land. The 3.36 million mu of arable land in Tibet are centered onthe valleys of "one jiang and two rivers" with abundant water and excellent temperature. According to 1990 statistics, the total areas of arable land in the 18 counties and cities situated on the middle section of the "one jiang and 展开更多
关键词 A survey of tibet’s Natural Resources
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Mysterious Look──Preface to Princess Wencheng's Entry to Tibet
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《China & The World Cultural Exchange》 2001年第2期46-47,共2页
关键词 Preface to Princess Wencheng’s Entry to tibet Mysterious Look
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From Darkness to the Light──The 50th Anniversary of Tibet's Peaceful Liberation
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《China Today》 2001年第5期6-7,共2页
关键词 From Darkness to the Light The 50th Anniversary of tibet’s Peaceful Liberation
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Hello,Nineteen Ninety-Eight!——Greetings From China's Tibet
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《China's Tibet》 1998年第1期1-1,共1页
Helo,NineteenNinetyEight!—GreetingsFromChina’sTibetoneistheyear1997.Herearives1998.Goodluckinthenewyear!Hap... Helo,NineteenNinetyEight!—GreetingsFromChina’sTibetoneistheyear1997.Herearives1998.Goodluckinthenewyear!HappyTibetanYearofth... 展开更多
关键词 tibet From GREETINGs Hello Nineteen Ninety-Eight China’s
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Tibet: 1951: PLA's Marching Into Tibet
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《China's Tibet》 1999年第6期45-45,共1页
关键词 PLA’s Marching Into tibet tibet
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History Belies Dalai Lama's 'Greater Tibet'
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《China's Tibet》 1999年第2期15-17,共3页
关键词 In Greater tibet History Belies Dalai Lama’s
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A Witness's Account of Changes in Tibet's Human Rights Conditions
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作者 LIN TIAN 《The Journal of Human Rights》 2009年第4期30-33,共4页
After riots that occurred on March 14, 2008 in Lhasa, Tibet, the China Central Television Station broadcast a documentary film titled Tibet's Past shot years ago by the Central Newsreel & Documentary Film Studio abo... After riots that occurred on March 14, 2008 in Lhasa, Tibet, the China Central Television Station broadcast a documentary film titled Tibet's Past shot years ago by the Central Newsreel & Documentary Film Studio about the miserable life of serfs under Tibet's feudal serf system before a democratic reform was carried out in the region. The documentary stunned many people. It helps people see through the reactionary and corrupt nature of the Dalai clique. 展开更多
关键词 than more A Witness’s Account of Changes in tibet’s Human Rights Conditions WITNEss
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Three Development Stages for the Tibetan Family and Tibet's Modernization——A Survey of Social Changes in Tibet in Last 50 Years
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作者 GELEK 《The Journal of Human Rights》 2010年第2期32-37,共6页
I Since 1990, as a person in charge of key research projects of the China Tibetology Research Center, I have had opportunities almost every year to conduct field surveys on anthropology in Tibet together with my colle... I Since 1990, as a person in charge of key research projects of the China Tibetology Research Center, I have had opportunities almost every year to conduct field surveys on anthropology in Tibet together with my colleagues. Our investigations focus on the family. The purpose of our surveys is to see social changes in Tibet during the 50 years after the Democratic Reform through the study of the family as a social cell. 展开更多
关键词 Three Development stages for the tibetan Family and tibet’s Modernization than more time over A survey of social Changes in tibet in Last 50 Years
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TIBET’S LAST CARAVAN WITH TRANSPORTING SALT(III)——SALT LANGUAGE AND THE CARAVAN
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作者 GYAYANG XIRAB 《China's Tibet》 2006年第3期28-31,共4页
Saltmen believed aboriginal gods were everywhere. If anyone in a caravan did something bad, offending the local gods, then these would punish the caravan and even bring down disaster upon it. If everyone respected and... Saltmen believed aboriginal gods were everywhere. If anyone in a caravan did something bad, offending the local gods, then these would punish the caravan and even bring down disaster upon it. If everyone respected and offered sacrifices to the gods, and followed all the caravan rules, then they the gods would protect them. 展开更多
关键词 s LAsT CARAVAN WITH TRANsPORTING sALT sALT LANGUAGE AND THE CARAVAN tibet III
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