Professor jonathan aitchison , an expert on global tectonics , will conclude the lecture by speaking on " are we at risk in south china ? " 最后的一部份是由地球板塊活動(dòng)專家艾赤心教授主講的處身華南地區(qū)的我們會(huì)否受到海嘯侵襲?
Professor jonathan aitchison , an expert on global tectonics , will conclude the lecture by speaking on " are we at risk in south china ? " 最后的一部份是由地球板塊活動(dòng)專家艾赤心教授主講的處身華南地區(qū)的我們會(huì)否受到海嘯侵襲?
Professor jonathan aitchison , an expert on global tectonics , will conclude the lecture by speaking on " are we at risk in south china ? " 最后的一部份是由地球板塊活動(dòng)專家艾赤心教授主講的處身華南地區(qū)的我們會(huì)否受到海嘯侵襲? 。
Based on the analysis of the data on global metallogeny in the framework of geodynamics and study of the processes of continental evolution and metalloeny of of sanjiang , qinling and xingan - mongolia orogenic belts , we have reconsidered the geodynamic evlution and metallogeny during indosinian to early - yanshan movement in china , and established large - scale metallogenic model on intracontinental evolution we in orogenic belts . the main results are summarized as follow . ( 1 ) systematically gathering the data about large - scale and superlarge - scale deposits in the world and drawing up the map of global tectonics and metallogeny ; finding out the segmentation of circle - pacific ocean metallogenic belt and informing that the giant deposit clusters are the prominent feature of global metallogeny 本文在總結(jié)全球大規(guī)模成礦的地球動(dòng)力學(xué)背景資料基礎(chǔ)上,通過深入解剖和系統(tǒng)對(duì)比我國(guó)三江造山帶南段、東秦嶺造山帶和興蒙造山帶中南部等典型造山帶關(guān)鍵地區(qū)以陸內(nèi)演化過程為核心的地球動(dòng)力學(xué)演化歷史及其成礦特征,重新認(rèn)識(shí)了我國(guó)大陸印支?早燕山期的動(dòng)力學(xué)演化過程及其成礦效應(yīng),建立了關(guān)于造山帶陸內(nèi)演化階段主要過程中的大規(guī)模成礦模式。
Viewing from the global tectonics , the authors dynamically described the dialectical relationships between extensions and compressions in time special 4 - d , and pointed out the different tectonic deformation systems corresponding to different tectonic dynamical environments . considering the geological evolution of sichuan basin , from nine aspects , the authors proved that the tectonic dynamical environments of sichuan basin , after its formation , has experienced the early extension , middle transition and late compression environments . correspondingly , as the paper suggests , a considerable attention need to be paid to the comprehensive studies of the early extensional structures , middle inversion structures and the late compression structures of sichuan basin when analyzing its tectonics 從全球構(gòu)造著眼,動(dòng)態(tài)地從時(shí)間-空間四維闡述了拉張-擠壓構(gòu)造動(dòng)力學(xué)環(huán)境的辯證關(guān)系,指出了不同構(gòu)造動(dòng)力學(xué)環(huán)境對(duì)應(yīng)于不同的構(gòu)造變形系統(tǒng)。結(jié)合四川盆地地質(zhì)演化歷程,從9個(gè)方面論證了四川盆地自其形成以來,構(gòu)造動(dòng)力學(xué)環(huán)境曾經(jīng)歷了早期拉張中期過渡晚期擠壓的過程,相應(yīng)地在對(duì)四川盆地進(jìn)行構(gòu)造分析時(shí),要注意早期伸展構(gòu)造中期反轉(zhuǎn)構(gòu)造晚期擠壓構(gòu)造的識(shí)別和綜合研究。