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| 1 | 大陆造山运动:从大洋俯冲到大陆俯冲、碰撞、折返的时限--以北祁连山、柴北缘为例显示文摘北祁连山和柴北缘是典型的早古生代大陆造山带,分别发育有北祁连山大洋型俯冲缝合带和柴北缘大陆型俯冲碰撞带。作为早古生代大洋冷俯冲的典型代表,北祁连山经历了从新元古代-寒武纪大洋扩张、奥陶纪俯冲和闭合及早泥盆世隆升造山的过程。高压变质岩变质年龄为490~440Ma,证明古祁连洋经历了至少50m.y.的俯冲过程。柴北缘超高压变质带是大陆深俯冲的结果,岩石学、地球化学和同位素年代学表明,柴北缘超高压变质带中榴辉岩的原岩分别来自洋壳和陆壳两种环境。高压/超高压变质的蛇绿岩原岩的年龄为517±11Ma,与祁连山蛇绿岩年龄一致。榴辉岩早期的变质年龄为443~473Ma,与祁连山高压变质年龄一致,代表大洋地壳俯冲的时代,而柯石英片麻岩和石榴橄榄岩所限定的超高压变质时代为420~426Ma,代表大陆俯冲的年龄。从大洋俯冲结束到大陆俯冲最大深度的转换时间最少需要20m.y.。自420Ma起,俯冲的大洋岩石圈与跟随俯冲的大陆岩石圈断离,大陆地壳开始折返,发生隆升和造山。北祁连山和柴北缘两个不同类型的高压-超高压变质带反映了早古生代从大洋俯冲到大陆俯冲、隆升折返的造山过程。 | 宋述光 牛耀龄 张立飞 张贵宾 | 2009 | 岩石学报2009，25，9： | 99 |
| 2 | Mianlüe tectonic zone and Mianlüe suture zone on southern margin of Qinling-Dabie orogenic belt显示文摘The Mianle tectonic zone (Mianle zone), an ancient suture zone in addition to the Shangdan suture in the Qinling-Dabie orogenic belt, marks an important tectonic division geo-logically separating north from south and connecting east with west in China continent. To de-termine present structural geometry and kinematics in the Mianle tectonic zone and to recon-struct the formation and evolution history involving plate subduction and collision in the Qinling-Dabie orogenic belt, through a multidisciplinary study, are significant for exploring the mountain-building orogenesis of the central orogenic system and the entire process of the major Chinese continental amalgamation during the Indosinian. | ZHANG Guowei1, DONG Yunpeng1, LAI Shaocong1, GUO Anlin1, MENG Qingren2, LIU Shaofeng3, CHENG Shunyou1, YAO Anping1, ZHANG Zongqing4, PEI Xianzhi5 & LI Sanzhong6 1. Department of Geology, Northwest University, Xian 710069, China 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China 3. Earth Science and Resource Faculty, China University of Geosciences, Beijing 100083, China 4. Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China 5. Changan University, Xian 710054, China 6. Qingdao University of Oceanography, Qingdao 266003, China | 2004 | Science China Earth Sciences2004，47，4： | 57 |
| 3 | 锡林浩特杂岩和蓝片岩的锆石U-Pb年代学及其对索仑缝合带演化的意义显示文摘报道了内蒙索仑缝合带附近的锡林浩特杂岩和苏左旗混杂带中蓝片岩块的锆石U-Pb年代学数据。锡林浩特杂岩中碎屑锆石来源复杂,从晚太古至晚古生代均有。最年轻的碎屑锆石U-Pb年龄为280~340Ma,与该区最年轻的弧岩浆岩年龄一致,表明该杂岩的原岩最终形成于晚古生代,而不是前寒武陆块残留。锡林浩特杂岩原岩的沉积源区主要是古生代的弧岩浆岩和部分裸露的前寒武陆壳,可能是弧前沉积建造。蓝片岩的锆石U-Pb年龄为318±5Ma(范围338~280Ma),这些锆石显示典型岩浆振荡环带结构,因此该年龄可能代表其原岩形成年龄,而其变质应该在280Ma之后。所以,锡林浩特杂岩和混杂带中蓝片岩块的变质变形作用可能发生在晚二叠,与索仑缝合带强烈的孤陆碰撞有关,暗示索仑缝合带的碰撞缝合时间在晚二叠,而不是许多人坚持的泥盆纪。 | 陈斌 马星华 刘安坤 木合塔尔·扎日 | 2009 | 岩石学报2009，25，12： | 47 |
| 4 | Emplacement age of the post-orogenic A-type granites in Northwestern Lesser Xing'an Ranges, and its relationship to the eastward extension of Suo-lushan-Hegenshan-Zhalaite collisional suture zone显示文摘A great amount of alkali-feldspar and alkaline granites have been found around Nenjiang, Northwest Lesser Xing’an Ranges, but their forming ages have been a controversial subject due to the lack of reliable geological and isotopic geochronological evidence. The zircon U-Pb isotopic dating results conducted in this note indicate that these granites emplaced at 260-290 Ma, coeval with the late stage of Late Paleozoic. Studies of mineralogy, petrology andgeochemistry show that they are post-orogenic A-type granites, and consist of the northeastern extension of huge belt of Late Paleozoic A-type granite along North Xinjiang-Southeast Mongolia-Central Inner Mongolia. Therefore, we can determine that the Suolunshan-Hegenshan-Zhalaite collisional suture zone extends northeastward to Heihe with the collision age of Carboniferous. | Deyou Sun Fuyuan Wu Huimin Li Qiang Lin | 2001 | Chinese Science Bulletin2001，46，5： | 36 |
| 5 | Possible early Neoproterozoic magmatism associated with slab window in the Pingshui segment of the Jiangshan-Shaoxing suture zone: Evidence from zircon LA-ICP-MS U-Pb geochronology and geochemistry显示文摘We report here geochemical data, U-Pb zircon ages, and Hf isotopes for the high-Mg diorites (HMDs), Nb-enriched basaltic porphyrys (NEBPs) and plagiogranites (PLAGs) in the Pingshui segment of the Jiangshan-Shaoxing suture zone. The HMDs are characterized by high Mg# (>60), high Na and LREE contents, depletion of HREE and HFSE, and pronounced positive εNd(t) values of 7.0 to 7.7, similar to some adakitic high-Mg andesites. The NEBPs are relatively Na-rich (Na2O/K2O>6) and display high abundances of P2O5 (~1.00%), TiO2 (~3.08%) and HFSE (e.g., Nb=9.53-10.27 ppm). Their Nd isotopic compositions (εNd(t)=6.8-8.0) are comparable to those of the HMDs. The PLAGs are metaluminous (A/CNK=0.84-0.89) and sodic (Na2O/K2O>10). Their depletion in HFSE (e.g., Nb, Ta) is consistent with 'SSZ-type' plagiogranite. Zircon LA-ICP-MS U-Pb dating yields an age of 932±7 Ma for the HMD, 916±6 Ma for the NEBP, and 902±5 Ma for the PLAG, respectively, indicating that they were products of early Neoproterozoic magmatism. The PLAGs exhibit relatively high zircon Hf isotopes and positive εHf(t) values of 11.0 to 16.2, consistent with their Nd isotopic data (εNd(t)=7.5-8.4). Such features are similar to those of oceanic plagiogranites in ophiolites and distinct from those of crust-derived granites. The PLAGs were most likely derived from partial melting of subducted oceanic crust in an active continental margin. Considering these results in the context of the regional geology, we suggest that a slab window in the subducting oceanic crust between the Yangtze Block and Cathaysia Block was possibly the principal cause for the unique arc magmatism in the area. The upwelling asthenosphere below the slab window may have provided significant thermodynamic conditions. | CHEN ZhiHong GUO KunYi DONG YongGuan CHEN Rong LI LongMing LIANG YiHong LI ChunHai YU XiMing ZHAO Ling XING GuangFu | 2009 | Science China Earth Sciences2009，52，7： | 26 |
| 6 | An ophiolitic tectonic melange first discovered in Huashan area, south margin of Qinling Orogenic Belt, and its tectonic implications显示文摘On the basis of the synthetic studies of geology and geochemistry, an ophiolitic tectonic melange was discovered in Sanligang-Sanyang area, the western part of Xiangfan-Guangji fault, the south margin of the Qinling Orogenic Belt. It is composed of different tectonic blocks with different lithological features and ages, mainly including the Huashan ophiolite blocks, Xiaofu Island-arc volcanic blocks, pelagic sediments, fore-arc volcanic-sedimentary system, and the massif of the basement and the covering strata of the Yangtze Block. These massifs were emplaced in the western part of Xiangfan-Guangji fault, the boundary between the Qinling Orogenic Belt and Yangtze Block, contacting each other by a shear zone or chaotic matrix. The characteristics of geochemistry indicate that the basalts of the Huashan ophiolite are similar to mid-oceanic ridge basalts (MORB) formed in an initial oceanic basin, and the Xiaofu volcanic rocks are formed in a tectonic setting of island arc. The ophiolitic tectonic melange | 董云鹏 张国伟 赖绍聪 周鼎武 朱炳泉 | 1999 | Science China Earth Sciences1999，42，3： | 24 |
| 7 | 关节镜下Suture Bridge双排法和SCOI单排法缝合修复中型肩袖撕裂的疗效比较显示文摘[目的]比较肩关节镜下Suture Bridge双排缝合法和SCOI单排缝合法修复中型大小肩袖撕裂的临床疗效。[方法] 2014年1月~2017年6月,进行了189例肩关节镜下肩袖损伤修复手术。根据纳入和排除标准,纳入了80例患者作为研究对象。根据缝合修复方法不同将患者分为Suture Bride双排法修复组(双排法组) 41例和SCOI修复组(单排法组) 39例。采用美国加州大学洛杉矶分校评分系统(UCLA)评分和美国肩肘外科协会评分系统(ASES)评分评价临床效果。[结果]双排法组和SCOI单排法组平均随访时间分别为(48.82±6.34)、(49.64±7.23)个月。双排法组UCLA评分为(33.92±4.64)分,单排法组UCLA评分为(33.19±5.22)分。两组间差异无统计学意义(P>0.05)。双排法组ASES评分为(88.94±5.46)分,单排法组ASES评分为(83.37±6.24)分。两组间差异无统计学意义(P>0.05)。[结论]对于中型肩袖撕裂,Suture Bridge双排法修复和SCOI单排法修复缝合UCLA评分和ASES评分无明显差别。 | 高绪仁 朱梁 陈永吉 潘永佩 刘守纪 李鸿运 郭开今 | 2018 | 中国矫形外科杂志2018，26，22： | 23 |
| 8 | Petrological, geochemical and chronological constraints for the tectonic setting of the Dongco ophiolite in Tibet显示文摘The Dongco ophiolite occurred in the middle-western segment of the Bangong-Nujiang suture zone. The thickness of the ophiolite suite is more than 5 km, which is composed, from bottom to top, of the mantle peridotite, mafic-ultramafic cumulates, basic sills (dykes) and basic lava and tectoni- cally emplaced in Jurassic strata (Mugagongru Group). The Dongco cumulates consist of dunite- troctolite-olivine-gabbro, being a part of DTG series of mafic-ultramafic cumulates. The basic lavas are characterized by being rich in alkali (Na2O+ K2O), TiO2, P2O5 and a LREE-rich type pattern dip- ping right with [La/Yb]=6.94―16.6 as well as a trace elements spider-diagram with normal anomaly of Th, Nb, Ta, Hf. Therefore, the Dongco basic lavas belong to ocean-island basalt (OIB) and dis- tinctly differ from mid-ocean ridge basalt (MORB) and island-arc basalt (IAB) formed in the plate convergence margin. The basic lavas have higher 87Sr/86Sr (0.704363―0.705007), lower 143Nd/144Nd (0.512708―0.512887) and εNd(t ) from +2.7―+5.8, indicating that they derive from a two-components mixing mantle source of depleted mantle (DM) and enriched mantle (EMI). From above it is ready to see that the Dongco ophiolite forms in oceanic island (OIB) where the mantle source is replaced by a large amount of enriched material, therefore it distinctly differs from these ophiolites formed in island-arc and mid-oecan ridge. Newly obtained SHRIMP U-Pb dating for zircon of the cumulate troctolite is 132 ± 3 Ma and whole-rock dating of ^(39)Ar/^(40)Ar for the basalt is 173.4 ± 2.7 Ma and 140.9 ± 2.8 Ma, indicating that the Dongco ophiolite formed at Early Cretaceous and the middle-western segment of the Bangong-Nujiang oceanic basin was still in the developing and evolving period at Early Cretaceous. | BAO PeiSheng XIAO XuChang SU Li WANG Jun | 2007 | Science China Earth Sciences2007，50，5： | 16 |
| 9 | Mesozoic radiolarian chert from the middle sector of the Yarlung Zangbo suture zone,Tibet and its tectonic implications显示文摘Three radiolarian fauna, aged as the Middle-Late Triassic, Late Jurassic-Early Creta- ceous and Cretaceous radiolarian fauna, have been recognised in the radiolarian cherts from the middle sector of the Yarlung Zangbo suture zone, southern Tibet, China. The average contents of SiO2 in the radiolarian cherts of the Middle-Late Triassic and Late Jurassic-Early Cretaceous are 90.24% and 92.58% respectively, with average ratios of Al/(Al+Fe+Mn) as 0.75 and 0.74 respectively, the average ratios of MnO/TiO2 as 0.36 and 1.24, the average ratios of Ce/Ce* as 1.15 and 1.03, and the average ratios of LaN/CeN as 0.85 and 0.93. These geochemical features indicate that both of them are biogenic, deposited in a continental margin basin. The SiO2 content of the Early Cretaceous radiolarian chert is 94.12%, with the ratio of Al/(Al+Fe+Mn) as 0.59, ratio of MnO/TiO2 as 4.30, ratio of Ce/Ce* as 0.60, ratio of LaN/CeN as 1.59, which imply that the chert is biogenic and was deposited in a pelagic basin. The Middle-Late Triassic association of the radiolarian chert and turbidites as well as their geochemical characteristics indicates the existence of a strong rifting marginal basin in the belt of the Yarlung Zangbo River then. The association of radiolarian chert and bedded basalt indicate an initial Tethyan ocean basin in southern Tibet during the Late Jurassic-Early Cretaceous. The early Cretaceous radiolarian chert coexisting with pillow basalt in top of the ophiolite suite represents sediments from the oceanic Tethyan basin. | ZHU Jie1,2, DU Yuansheng1, LIU Zaoxue2, FENG Qinglai1, TIAN Wangxue2, LI Jinping2 & WANG Changping2 1. Faculty of Earth Sciences,China University of Geology, Wuhan 430074, China 2. Hubei Institute of Regional Geology Survey, Wuhan 430034, China | 2006 | Science China Earth Sciences2006，49，4： | 15 |
| 10 | Suture Button装置修复下胫腓联合损伤的初步报告显示文摘[目的]探讨Suture Button装置治疗下胫腓联合损伤后的手术方法及临床效果。[方法]对截止于2007年9月利用Suture Button装置固定的下胫腓联合急、慢性损伤的13例病人进行连续随访观察,通过术后X线片数字化测量和标准的踝足功能评分,评估其疗效并探讨临床应用前景。[结果]除1例病人因术后短期再次创伤意外,行2次手术更换为传统螺钉内固定外,其余病人均在术后6周开始部分负重功能锻炼,术后第3个月功能平均评分达到满意,术后第6、12个月功能平均评分达到优良,X线片未发现内固定失效。[结论]Suture Button装置治疗下胫腓联合损伤具有技术简单、手术时间短、内固定器物理特性符合人体正常解剖生理、固定强度足够、无需2次手术取出等多项优势,可能成为下胫腓联合损伤新的治疗标准。 | 秦煜 Henry DeGroot Ⅲ | 2008 | 中国矫形外科杂志2008，16，22： | 14 |
| 11 | Geochemistry of the ophiolite and oceanic island basalt in the Kangxian-Pipasi-Nanping tectonic mélange zone, South Qinling and their tectonic significance显示文摘Detailed studies indicate that Kangxian-Pipasi-Nanping tectonic zone is a complicated mélange zone which includes many tectonic slabs of different origins. Ophiolite (MORB-type basalt), oceanic island tholeiite and alkaline basalt have been identified. Moreover, this tectonic mélange zone is eastward connected with the Mianlüe suture zone. The deformation characteristics, consisting components and volcanic rock geochemical features for the Kangxian-Pipasi-Nanping tectonic mélange zone are much similar to those of the Mianlüe suture zone and Deerni ophiolite. Therefore, the Kangxian-Pipasi-Nanping tectonic mélange zone should be the westward extension part of the Mianlüe suture zone. It indicates that the Mianlüe suture zone had extended to the Nanping area. | LAI Shaocong ZHANG Guowei PEI Xianzhi YANG Haifeng | 2004 | Science China Earth Sciences2004，47，2： | 13 |
| 12 | Location of Triassic Tectonic Suture Between Collided Sino-Korean and Yangtze Cratons in Dabie-Sulu Region, China显示文摘The regional extent and spatial distribution of ultrahigh pressure metamorphic(UHPM) and high pressure metamorphic (HPM) rocks, and the geometrical relationships of various petrotectonic units in the Dabie-Sulu region indicate that the Triassic collisional suture line between the Sino-Korean and Yangtze cratons is situated at the northern margin of the Dabie massif, that is,along the Balifan-Mozitan-Xiaotian fault in the Dabie region, and possibly is linked to the Wulian-Yantai fault in the Sulu region to tbe east. The suture line has been strongly modified duriug and subsequent to UHPM aud HPM events. | Suo Shutian Zhong Zengqiu You Zhendong(Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074) | 1999 | Journal of Earth Science1999，18，4： | 11 |
| 13 | Massive presacral bleeding during rectal surgery: From anatomy to clinical practice显示文摘AIM: To investigate control of two different types of massive presacral bleeding according to the anatomy of the presacral venous system. METHODS: A retrospective review was performed in 1628 patients with middle or low rectal carcinoma who were treated surgically in the Department of Colorectal Surgery, Changhai Hospital, Shanghai, China from January 2008 to December 2012. In four of these patients, the presacral venous plexus (n = 2) or basivertebral veins (n = 2) were injured with massive presacral bleeding during mobilization of the rectum. The first two patients with low rectal carcinoma were operated upon by a junior associate professor and the source of bleeding was the presacral venous plexus. The other two patients with recurrent rectal carcinoma were both women and the source of bleeding was the basivertebral veins.RESULTS: Two different techniques were used to con-trol the bleeding. In the first two patients with massive bleeding from the presacral venous plexus, we used suture ligation around the venous plexus in the area with intact presacral fascia that communicated with the site of bleeding (surrounding suture ligation). In the second two patients with massive bleeding from the basivertebral veins, the pelvis was packed with gauze, which resulted in recurrent bleeding as soon as it was removed. Following this, we used electrocautery applied through one epiploic appendix pressed with a long Kelly clamp over the bleeding sacral neural foramen where was felt like a pit Electrocautery adjusted to the highest setting was then applied to the clamp to 'weld' closed the bleeding point. Postoperatively, the blood loss was minimal and the drain tube was removed on days 4-7. CONCLUSION: Surrounding suture ligation and epiploic appendices welding are effective techniques for controlling massive presacral bleeding from presacral venous plexus and sacral neural foramen, respectively. | Zheng Lou Wei Zhang Rong-Gui Meng Chuan-Gang Fu | 2013 | World Journal of Gastroenterology2013，19，25： | 11 |
| 14 | 双Endobutton悬吊固定青少年患者前交叉韧带胫骨止点撕脱性骨折的早期疗效显示文摘目的:探讨关节镜下单胫骨隧道,双Endobutton微型钢板结合双股高强度Ultrabraid Suture装置悬吊固定青少年(骨骺未闭合)患者前交叉韧带胫骨止点撕脱性骨折的早期疗效。方法:回顾性分析2012年5月~2015年6月对21例青少年患者急性前交叉韧带胫骨止点撕脱性骨折,采用关节镜下双Endo-button微型钢板结合双股高强度Ultrabraid Suture装置悬吊固定,对所有患者进行关节镜下骨床新鲜化、骨折块复位,双Endobutton微型钢板悬吊固定。所有患者术后1周、1个月、3个月、每隔半年复查X线片。采用前抽屉试验和Lachman试验来评估膝关节术后稳定性,记录Lysholm评分,评估患者术后恢复情况。结果:术中出血量43~68 ml,平均53.95±7.10 ml;手术时间27~55 min,平均38.76±7.71 min。所有21例患者均获随访18~25个月,平均21.86±2.78个月。术后3个月X线片提示骨折块完全愈合,没有出现骨折畸形愈合或不愈合。所有患者均未出现软组织感染、髁间撞击症造成的膝关节伸直受限等并发症。末次随访Lysholm评分(97.14±1.35)相比术前(40.24±5.81)显著提高。结论:关节镜下单胫骨隧道,双Endobutton钢板结合双股高强度Ultrabraid Suture悬吊固定治疗急性期青少年患者前交叉韧带胫骨止点撕脱性骨折,早期临床效果令人满意。 | 王盼盼 张大海 蒋喆成 徐鹏 方盛 李欢 | 2017 | 中国运动医学杂志2017，36，11： | 11 |
| 15 | Geochemistry and Sr-Nd isotope characteristics of tonalites in Zêtang,Tibet:New evidence for intra-Tethyan subduction显示文摘Tonalites from the island arc rock assemblage in the Zêtang segment of the Yarlung Zangbo suture zone were analyzed for major,trace elements (including REE) and Sr-Nd isotope. The experimental data demonstrate that the tonalites have the adakite-like characteristics,including high SiO2 (58%―63%),Al2O3 (18.4%―22.4%),Sr (810×10 6―940×10 6),Sr/Y (77―106),low HREE (Y=9×10 6―11×10 6,Yb= 1×10 6―1.3×10 6),with LREE enrichment and faint Eu positive anomaly. ISr (0.70421―0.70487) is rela-tively low whereas 143Nd/144Nd (0.512896―0.512929) and εNd(t) values (+6.7―+7.3) are high. These fea-tures suggest that Zêtang tonalites were formed by the partial melting of subducted oceanic crust,with involvement of a small amount of oceanic sediments. The identification of Zêtang adakites,derived from slab melting,presents new evidence for the intra-Tethyan subduction and the previous sugges-tion about the existence of intra-oceanic island arc within Tethys. | WEI DongLiang XIA Bin ZHOU GuoQing YAN Jun WANG Ran ZHONG LiFeng | 2007 | Science China Earth Sciences2007，50，6： | 9 |
| 16 | Basic-ultrabasic and volcanic rocks in Chagbu-Shuanghu area of northern Xizang (Tibet),China显示文摘The widespread Early Permian and Triassic sequences outcropping in the Chagbu-Shuanghu area of northern Xizang, China, are mainly characterized by volcanic rocks belonging to tholeiite with subordinate veins of diallagite. wehrlite and limburgites schlierens. These ultrabasic rocks do not carry plastic deformational fabrics from upper mantle and may result from the crystallization of fused mass derived from mantle under condition of deeper crust or earlier segregation of tholeiitic magma. These volcanic rocks, as interlayers or lens, are generally involved in slates, limestones and pebbly slates or breccia and geochemically different from MORB. It is reasonable to conclude from research results that the volcanic activities during the Early Permian and Late Triassic would be able to occur in an intraplale environment suffering initial extension of continental crust or an aulacogen. Therefore, these basic-ultrabasic and volcanic rocks did not constitute an ophiolitic association with an occurrence 6f | 邓万明 尹集祥 呙中平 | 1996 | Science China Earth Sciences1996，39，4： | 9 |
| 17 | Geochemistry of the E-MORB type ophiolite and related volcanic rocks from the Wushan area, West Qinling显示文摘The mafic-ultramafic assemblages, which thrustthrust into the Wushan-Tangzang boundary fault as some blocks and outcropped in the Yuanyangzhen, Lijiahe, Lubangou and Gaojiahe area, consist mainly of meta-peridotites, gabbros and basalts. The meta-peridotites are characterized by high SiO2 and MgO contents, low ΣREE, as well as their chondrite-normalized rare earth element patterns show some similarities to that of middle oceanic meta-peridotite. The basalts from the Yuanyangzhen, Lijiahe and Lubangou area are characterized by relatively high TiO2 content, low Al2O3 content and Na2O>>K2O. Above all, it is the slight enrichment or flat REE distribution patterns and the unfractionated in HFS elements in the primitive-normalized trace elements distribution patterns that indicate these basalts are similar to that of the typical E-MORB. In comparison, the basalts from the Gaojiahe section are featured by depletion in Nb and Ta contents and enrichment in Th content which show that these were derived from an island-arc setting. From studies of the regional geology, petrology, geochemistry, geo- chronology and all above evidence, it can be suggested that the mafic-ultramafic rocks from the Wushan area are mainly dismembered E-MORB type ophiolite, which represent the fragments of the lithosphere of the Early-Paleozoic Qinling ocean. It is preferred that these rocks were formed in an initial mid-ocean ridge setting during the beginning stage of the oceanic basin spreading. This ophiolite together with the Gaojiahe island-arc basalts shows that there exists an ophiolitic mélange along the Wushan-Tangzang boundary fault, and marks the suture zone after the closure of the Qinling ocean in early Paleozoic. | DONG YunPeng ZHANG GuoWei YANG Zhao ZHAO Xia MA HaiYong YAO AnPing | 2007 | Science China Earth Sciences2007，50，z2： | 9 |
| 18 | Endovascular technique using a snare and suture for retrieving a migrated peripherally inserted central catheter in the left pulmonary artery显示文摘We report a successful endovascular technique using a snare with a suture for retrieving a migrated broken peripherally inserted central catheter(PICC)in a chemotherapy patient.A 62-year-old male received monthly chemotherapy through a central venous port implanted into his right subclavian area.The patient completed chemotherapy without complications 1 mo ago;however,he experienced pain in the right subclavian area during his last chemotherapy session.Computed tomography on that day showed migration of a broken PICC in his left pulmonary artery,for which the patient was admitted to our hospital.We attempted to retrieve the ectopic PICC through the right jugular vein using a gooseneck snare,but were unsuccessful because the catheter was lodged in the pulmonary artery wall.Therefore,a second attempt was made through the right femoral vein using a snare with triple loops,but we could not grasp the migrated PICC.Finally,a string was tied to thetop of the snare,allowing us to curve the snare toward the pulmonary artery by pulling the string.Finally,the catheter body was grasped and retrieved.The endovascular suture technique is occasionally extremely useful and should be considered by interventional cardiologists for retrieving migrated catheters. | Hiroki Teragawa Takashi Sueda Yuichi Fujii Hiroaki Takemoto Yasushi Toyota Shuichi Nomura Keigo Nakagawa | 2013 | World Journal of Cardiology2013，5，9： | 9 |
| 19 | Petrology, geochemistry and geochronology of the Zhongcang ophiolite, northern Tibet: implications for the evolution of the Bangong-Nujiang Ocean显示文摘Ophiolites are widespread along the Bangong-Nujiang suture zone, northern Tibet. However, it is still debated on the formation ages and tectonic evolution process of these ophiolites. The Zhongcang ophiolite is a typical ophiolite in the western part of the Bangong-Nujiang suture zone. It is composed of serpentinized peridotite, cumulate and isotropic gabbros, massive and pillow basalts, basaltic volcanic breccia, and minor red chert. Zircon SHRIMP Ue Pb dating for the isotropic gabbro yielded weighted mean age of 163.4 ± 1.8 Ma. Positive zircon ε Hf(t) values(+15.0 to +20.2) and mantle-like σ^(18)O values(5.29 ±0.21)% indicate that the isotropic gabbros were derived from a long-term depleted mantle source. The isotropic gabbros have normal mid-ocean ridge basalt(N-MORB) like immobile element patterns with high Mg O, low TiO_2 and moderate rare earth element(REE) abundances, and negative Nb,Ti, Zr and Hf anomalies. Basalts show typical oceanic island basalt(OIB) geochemical features, and they are similar to those of OIB-type rocks of the Early Cretaceous Zhongcang oceanic plateau within the Bangong-Nujiang Ocean. Together with these data, we suggest that the Zhongcang ophiolite was probably formed by the subduction of the Bangong-Nujiang Ocean during the Middle Jurassic. The subduction of the Bangong-Nujiang Tethyan Ocean could begin in the Earlye Middle Jurassic and continue to the Early Cretaceous, and finally continental collision between the Lhasa and Qiangtang terranes at the west Bangong-Nujiang suture zone probably has taken place later than the Early Cretaceous(ca. 110 Ma). | Yue Tang Qingguo Zhai Peiyuan Hu Xuchang Xiao Haitao Wang | 2018 | Geoscience Frontiers2018，9，5： | 9 |
| 20 | PRELIMINARY STUDIES ON THE PALEOSUTURE BETWEEN SIBERIAN PLATE AND SINO-KOREAN PLATE IN EASTERN NEI MONGOL显示文摘Linxi area between Siberian plate and Sino-Korean plate, located in the eastern part of Nei Mongol, is one of the most important regions for studying the paleo-suture between the plates. Up to now, there are two basically different viewpoints on the paleo-suture situation. Some geologists consider that the suture is situated oa the Xar Moron fault belt (almost in accord with the Xar Moron river valley); the others claim that the suture might be locat- | 李锦轶 | 1987 | Chinese Science Bulletin1987，32，23： | 8 |
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