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| 1 | Evidence of crustal ‘channel flow’ in the eastern margin of Tibetan Plateau from MT measurements显示文摘Magnetotelluric (MT) survey has been carried out in the eastern margin of the Tibetan Plateau and its neighboring Shimian-Leshan area, Sichuan Province. Analysis of this MT data reveals that the electric structure of the Tibetan Plateau differ much from that of the Sichuan block. In general, the electric re-sistivity of crust beneath the Sichuan block in the east is larger than that of the eastern margin of the Tibetan Plateau in the west. The crust of the plateau is divided into upper, middle, and lower layers. The middle crust is a low resistivity layer with minimum down to 3―10 Ωm about 10―15 km thick. It pre-sumably contains partial melt and/or salt-bearing fluids with low viscosity, prone to deform and flow, producing a 'channel flow' under the southeastward squeeze of the eastern Tibetan Plateau. This low-resistivity layer makes the upper crust decoupled mechanically from the lower crust. In the brittle upper crust, faults are dominated by left-lateral strike-slip and thrust motions, leading to surface rising and shallow earthquakes. The low-resistivity layer also cut the Xianshuihe-Anninghe fault zone into two sections vertically. In this region, the thicknesses of upper, middle, and lower crust vary laterally, pro-ducing a transitional zone in the eastern margin of the Tibetan Plateau characterized by thicker crust and higher elevation in the west and thinner crust and lower elevation in the east. | ZHAO GuoZe CHEN XiaoBin WANG LiFeng WANG JiJun TANG Ji WAN ZhanSheng ZHANG JiHong ZHAN Yan XIAO QiBin | 2008 | Chinese Science Bulletin2008,53,12: | 57 |
| 2 | Deep structure beneath the southwestern section of the Longmenshan fault zone and seimogenetic context of the 4.20 Lushan M_S7.0 earthquake显示文摘Magnetotelluric measurements were carried out along two profiles across the middle and southwestern sections of the Longmenshan fault zone(LMSf)from 2009 to 2011,after the 2008 Wenchuan MW7.9 earthquake.The former profile crosses the Wenchuan event epicenter and the latter one crosses 2013 Lushan MS7.0 event epicenter.The data were analyzed using advanced processing techniques,including phase tensor and two-dimensional inversion methods,in order to obtain reliable 2-D profiles of the electrical structure in the vicinity of the two earthquakes.A comparison of the two profiles indicates both similarities and differences in the deep crustal structure of the LMSf.West of the southwestern section,a crustal high conductivity layer(HCL)is present at about 10 km depth below the Songpan-Garzêblock;this is about 10 km shallower than that under the middle section of the LMSf.A high resistivity body(HRB)is observed beneath the southwestern section,extending from the near surface to the top of upper mantle.It has a smaller size than the HRB observed below the middle section.In the middle section,there is a local area of decreased resistivity within the HRB but there is absence of this area.The 2013 Lushan earthquake occurred close to the eastern boundary of HRB and the Shuangshi-Dachuan fault,of which the seismogenic context has both common and different features in comparison with the 2008 Wenchuan event.On a large scale,the 2013 Lushan earthquake is associated with the HCL and deformation in the crust including HCL of the eastern Tibetan Plateau.In order to assess seismic risk,it is important to consider both the stress state and the detailed crustal structure in different parts of the LMSf. | ZHAN Yan ZHAO GuoZe UNSWORTH Martyn WANG LiFeng CHEN XiaoBin LI Tao XIAO QiBin WANG JiJun TANG Ji CAI JunTao WANG YanZhao | 2013 | Chinese Science Bulletin2013,58,28: | 39 |
| 3 | Relation between electricity structure of the crust and deformation of crustal blocks on the northeastern margin of Qinghai-Tibet Plateau显示文摘Study on the electricity structure along a magnetotelluric (MT) sounding profile on the northeastern margin of Qinghai-Tibet Plateau indicates that four crustal blocks can be de-termined from southwest to northeast, namely Bayan Har block (BH), Qin-Qi block (QQ), Hai-yuan block (HY) or the North-South seismotectonic belt and Ordos block (OD). The BH, QQ and OD blocks display a similar electricity structure of the crust. The upper crust represents a high- resistivity layer and the upper part of lower crust represents a low-resistivity layer with the resis-tivity increasing gradually with depth from the lower part of lower crust to the upper mantle. The electricity structure of the crust in these three blocks is similar to that in the complete blocks on the southern and eastern margins of the Qinghai-Tibet Plateau and belongs to normal electricity layering of the crust in slightly deformed or complete intracontinental blocks. The crust in HY block as a boundary zone has been significantly deformed, hence its electricity layering was de-stroyed and the structure was complex and the block became a recent tectonically active and great seismo-active region. The contact belts between the blocks on the northeastern margin of Qinghai-Tibet Plateau exhibit both upthrusting outward and strike-slip movement different from those on the southern and eastern margins of the plateau. The genesis of the low-resistivity layer in the crust is analyzed and the thickness of the lithosphere is estimated in the paper. | ZHAO Guoze TANG Ji ZHAN Yan CHEN Xiaobin ZHUO Xianjun WANG Jijun XUAN Fei DENG Qianhui ZHAO Junmeng | 2005 | Science China Earth Sciences2005,48,10: | 20 |
| 4 | Electromagnetic anomaly before earthquakes measured by electromagnetic experiments显示文摘Three experiments are carried out for earthquake monitoring using electromagnetic (EM) methods in recent years. Some earthquakes occurred in chance of the measurement time period for each experiment and the anomalies were recorded before the shocks. The observation at a site 20 km away from the epicenter of Zhangbei MS6.2 earthquake in 1998 shows that the apparent resistivity decreases in the strike direction before and/or during the earthquake and the resistivity increases in the de-cline direction. This anomalous variation in apparent resistivity accounts for about 20%. The apparent resistivities at a site in the epicentral area decrease in the strike and decline directions before and/or during the earthquake and increase after shocks. The experiments using artificial electromagnetic signals with super low frequency carried out in 1999 show that the resolution and stability of electric and magnetic spectra are improved. The spectra of electric and magnetic fields and apparent resistivity at the Baodi station began to anomalously change two days before the Qian'an earthquake with 120 km distant to the station. The anomalous variation of electric and magnetic spectra is about twice as great as normal variation and the apparent resistivity changes by about 20%. The measurements in active seismic area of Yunnan province in the year 2005 indicate that the electric and magnetic spectra anomalously change by one order before the Taoyuan earthquake about 100 km away from the observa-tories. But the measurements at the sites in Beijing area 2 000 km away from the epicenter do not show any anomaly. | Guoze Zhao Yan Zhan Lifeng Wang Jijun Wang Ji Tang Qibin Xiao Xiaobin Chen | 2009 | Earthquake Science2009,22,4: | 16 |
| 5 | Advances in alternating electromagnetic field data processing for earthquake monitoring in China显示文摘The alternating electromagnetic(EM) field is one of the most sensitive physical fields related to earthquakes. There have been a number of publications reporting EM anomalies associated with earthquakes. With increasing applications and research of artificial-source extremely low frequency EM and satellite EM technologies in earthquake studies, the amount of observed data from the alternating EM method increases rapidly and exponentially, so it is imperative to develop suitable and effective methods for processing and analyzing the influx of big data. This paper presents research on the self-adaptive filter and wavelet techniques and their applications to analyzing EM data obtained from ground measurements and satellite observations, respectively. Analysis results show that the self-adaptive filter method can identify both natural- and artificial-source EM signals, and enhance the ratio between signal and noise of EM field spectra, apparent resistivity, and others. The wavelet analysis is capable of detecting possible correlation between EM anomalies and seismic events. These techniques are effective in processing and analyzing massive data obtained from EM observations. | ZHAO GuoZe BI YaXin WANG LiFeng HAN Bing WANG Xiao XIAO QiBin CAI JunTao ZHAN Yan CHEN XiaoBin TANG Ji WANG JiJun | 2015 | Science China Earth Sciences2015,58,2: | 7 |
| 6 | Deep electrical structure of the Sulu orogen and neighboring areas显示文摘Because of the discovery of ultrahigh pressure metamorphic (UHPM) belt beneath the Sulu (Jiangsu Province-Shandong Province) orogen, this area has become a focused subject of current geoscience, as it has a close relationship with the evolution of the orogen and the neighboring North China craton. Probing the deep structure beneath this area would be of great significance for the geological inter- pretation of this issue. In this study, we make an analysis of magnetotelluric (MT) data along a profile across the Sulu orogen to provide evidence of deep structure below this region. The profile begins in west from the North China block, extending in S129oE, across the Tan-Lu fault, Sulu UHPM zone, and Sulu high pressure metamorphic (HPM) zone, and terminates in the Yangtze block in east. We use the nonlinear conjugate gradient method and TE-TM combined mode to perform inversion and interpreta- tion of the MT data, and obtain an electrical structure image above depth of 150 km along the profile. It shows that the structure can be divided into seven sections in lateral direction, between which the electric boundaries coincide well with the major faults, such as the Tan-Lu, Haizhou-Siyang, and Ji- ashan-Xiangshui faults. In vertical direction the electrical structure can be subdivided into six layers of different resistivities. It is noted that there exist high-conductivity areas in crust below the North China block and Yangtze block, while such a feature is not present beneath the Sulu orogen, which is very different from the Dabie orogen. It is also observed that a fairly continuous zone of relatively low-resistivity exists at depths of 50-90 km of the electrical structure image, which is presumably a weak zone in the uppermost mantle. Just below this low-resistivity zone are the relatively high- resis- tivity layer of the North China block, relatively low-resistivity layer of the Sulu orogen, and relatively high-resistivity layer of the Yangtze block, all in the shallow upper mantle, respectively. From the whole 2D electrical structure image, there is no abnormally low-resistivity layer in the shallow upper mantle beneath the Sulu orogen and neighboring areas, indicating that no hot asthenoshperic material asso- ciated with lithospheric thinning exists at present. | XIAO QiBin ZHAO GuoZe WANG JiJun ZHAN Yan CHEN XiaoBin TANG Ji CAI JunTao WAN ZhanSheng WANG LiFeng MA Wei ZHANG JiHong | 2009 | Science China Earth Sciences2009,52,3: | 7 |
| 7 | Earthquake Electromagnetic Precursor Anomalies Detected by a New Ground-based Observation Network显示文摘It is a debated topic if there are any observable precursor anomalies prior to the earthquake(EQ hereafter)and if the stronger EQ can be successfully predicted.During last few decades quite a lot of observable electromagnetic(EM)precursors were published by using techniques equipped in either satellites or on ground-based stations.But there are only a few cases that the shortterm precursor anomalies of EM field before earthquakes were observed by using alternate EM fields on ground.This paper will present a new EM observation network built in recent years and show a new finding of EM field with the variation of a one-year cycle observed using the network.As an example,the short-term precursor anomalies of apparent resistivity before the Yangbi EQ(Ms 5.1)occurred on March 27,2017 in Yunnan Province will be studied.The observed anomalous phenomena indicate that the anomaly before the EQ can be captured only if reasonable effective methods including sophisticated analytical techniques are used,and it is believed that continuously observed data on the fixed observation network for a long time is an effective means for studying anomalies that appeared before earthquakes.This network can also play an important role in studying the EM environment from space. | Bing HAN Guoze ZHAO Lifeng WANG Ji TANG Yaxin BI Yan ZHAN Xiaobin CHEN Qibin XIAO Jihong ZHANG | 2021 | Journal of Geodesy and Geoinformation Science2021,4,1: | 3 |
| 8 | Cytokinin signaling regulates pavement cell morphogenesis in Arabidopsis显示文摘难题有交错的脑叶的塑造片的 Arabidopsis 叶人行道房间(PC ) 并且缩排是一个好模型系统调查在纸巾以内协调房间极性和形状形成的机制。植物生长素被显示了 GTPase 依赖的发信号由激活 ROP 协调 interdigitation 小径。识别另外的部件或机制,我们与反常 PC 形态发生为异种屏蔽了并且发现细胞激动素发信号调整 PC interdigitation 模式。在细胞激动素累积的减小和在细胞激动素发信号的缺点(例如在 ARR7-over-expressing 线, ahk3cre1 细胞激动素受体异种,和 ahp12345 细胞激动素表明异种) 提高的 PC interdigitation,而细胞激动素的生产过剩和细胞激动素在一根 ARR20 在表示上线发信号的在激活上在整个子叶推迟了或废除 PC interdigitation。基因、生物化学的分析建议表明 ROP 在上游的行为压制交错的模式的形成的那细胞激动素。我们的结果提供控制 PC 形状的小径的新奇机械学的理解并且揭开为细胞激动素在房间形态发生发信号的一个新角色。 | Hongjiang Li Tongda Xu Deshu Lin Mingzhang Wen M ingtang Xie Jērōme Duclercq Agnieszka Bielach Jungmook Kim G Venugopala Reddy Jianru Zuo Eva Benková Jiгi Friml Hongwei Guoz Zhenbiao Yang | 2013 | Cell Research2013,23,2: | 2 |
| 9 | Land use induced changes oforganic carbon storage in soils of China 显示文摘 | WU H B GUOZ T PENG C H | 2003 | Global Change Biology2003,9,: | 1 |
| 10 | Studies on the constituents of aerial parts of Scutellaria planipes 显示文摘 | ZHANG Yongyu YUNZHEN GUOZ HIROYUKI AGETA | 1998 | Chin Pharm Sci1998,7,2: | 1 |
| 11 | Responsesofantioxidativesystem tochillingstressintworicecultivarsdifferinginsensitivity显示文摘 | HuangM GuoZ | 2005 | BiologiaPlantarum2005,49,1: | 1 |
| 12 | Fluid-structure interaction within a layered aortic arch model显示文摘 | GaoF GuoZ SakamotoM | 2006 | J Biol Phys2006,32,5: | 1 |
| 13 | Associationofasymptomatico-ralcandidalcarriage,oralcandidiasisandCD4+ lymphocytecountinHIV-positivepatientsinChina显示文摘 | LiuX LiuH GuoZ etal | 2006 | OralDis2006,12,1: | 1 |
| 14 | Differentialresponsesofantioxidativesystemtochillinganddroughtinfourricecultivarsdifferinginsensitivity显示文摘 | GuoZ OuW LuS etal | 2006 | PlantPhysiolBiochem2006,44,1112: | 1 |
| 15 | Oncolyticimmunotherapy:Dyingtherightwayisakeytoelicitingpotentantitumorim-munity显示文摘 | GuoZS LiuZ BartlettD L | 2014 | FrontOncol2014,,4: | 1 |
| 16 | Effect of electrode structure on performance of Sianode in Li-ion batteries:Si particle size and conductive additive显示文摘 | Liu W R GuoZ Z Young W S | 2005 | J Power Sources2005,140,: | 1 |
| 17 | A modified theoretical model on tunnelling giant magnetoresistance of granular fdms 显示文摘 | Wang C Z GuoZ H Rang Y H | 2004 | Physics Letters A2004,329,3: | 1 |
| 18 | Pyrolysis characteristics of bio-oil fractions separated by molecular distillation显示文摘 | GUO X WANG S GUOZ LIU Q LUO Z CEN K | | 0,,09: | 1 |
| 19 | Role of STAT4 and STAT6 signaling in allograft rejection and CTLA4-Ig-mediated tolerance 显示文摘 | ZhouP Szot GL GuoZ | 2000 | J Immunol2000,165,10: | 1 |
| 20 | Analyzing nutrient distribution in different particle-size municipal aged refuse显示文摘 | LI GK HOU F GUOZ YAOGY | 2011 | Waste Management2011,31,: | 1 |