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| 1 | 南秦岭沙河湾、曹坪和柞水岩体锆石U-Pb年龄、Hf同位素特征及其地质意义显示文摘沙河湾、曹坪和柞水花岗岩体位于商丹与勉略缝合带之间的南秦岭中部地区,三个岩体Al_2O_3含量在14.08%~15.85%之间,相对富硅、富镁、富碱,K_2O与Na_2O含量相近,属于钾玄-高钾钙碱性系列准铝质Ⅰ型花岗岩。它们均富集Rb、Sr、Ba等大离子亲石元素和轻稀土,亏损Nb、Ta等高场强元素和重稀土以及Y,铕负异常不明显(δEu=0.62~0.91),显示同源岩浆演化特征。沙河湾、曹坪、柞水岩体的锆石LA-MC-ICPMS铀铅年龄分别为212±0.93 Ma、224.1±1.1 Ma和224.8±1.1 Ma;锆石ε_(Hf)(t)值的变化范围分别是-1.7~+5.0(212Ma)、-6.0~+3.3(224Ma)和-5.8~+4.4(224Ma),前者高于后两者;三者的Hf同位素二阶段模式年龄(t_(DM2))在791~1366Ma之间,平均值为1075Ma。这些特征表明这些花岗岩是源于亏损地幔的岩浆与源于中.新元古代或更老下地壳的岩浆发生混合作用的产物。沙河湾、曹坪和柞水岩体形成在华北与华南板块碰撞后,是秦岭造山带从挤压向伸展转变的地球动力学背景下岩石圈拆沉的结果,而秦岭造山带印支晚期岩石圈构造体制应以挤压向伸展转变为主,岩石圈构造属性从挤压向伸展转变事件可能发生在224~210Ma之间。 | 弓虎军 朱赖民 孙博亚 李犇 郭波 | 2009 | 岩石学报2009，25，2： | 90 |
| 2 | North Qinling Paleozoic granite associations and their variation in space and time: Implications for orogenic processes in the orogens of central China显示文摘Integrated zircon U-Pb dating and whole rock geochemical analyses have been carried out for two typical S-and I-type granitoids in the north Qinling. Zircon dating by SIMS of the Piaochi S-type grani- toids yields an emplacement age of 495±6 Ma. The granitoids show whole-rock εNd(t)=-8.2--8.8, zircon εHf(t)=-6―-39. The Huichizi I-type granitoids have emplacement ages of 421±27 Ma and 434±7 Ma es- tablished by LA-ICP-MS and SIMS methods, respectively. Their whole-rock εNd(t)=-0.9-0.9 and zircon εHf(t)=-11-8.4. Combined with statistical analyses of 28 zircon ages of granitoid plutons collected from the literature, Paleozoic magmatism in the north Qinling can be divided into three stages. The first-stage magmatism (~505-470 Ma) mainly occurred in the east part of the north Qinling and has features of an I-type arc, associated with which are S-type granitoids such as Piaochi pluton. The early granitoids (~505-490 Ma) have close spatio-temporal relations to ultra-high-pressure (UHP) rocks, and thus are interpreted as an oceanic subduction system along a continental margin. The second-stage magmatism (~450-422 Ma) occured through the whole north Qinling, and is characterized by I-type granitoids represented by the Huichizi pluton. The magma is interpreted as partial melting of lower crust mixed by mantle-derived magma in a collisional setting with the uplift of terranes. The third-stage magmatism (~415-400 Ma) is dominated by I-type granitoids and only took place in the middle part of the north Qinling, and is regarded as a late-stage collision. The spatial and temporal variations of the Qinling Paleozoic magmatism reveal protracted subduction/collision. The subduction was initiated from the east part of the north Qinling, earlier than that in the Qilian-northern Qaidam, Kunlun, and northern Dabie regions. This demonstrates variations in time of subduction, accretion and collision of separate blocks or terranes in the orogenic systems in central China. | WANG Tao WANG XiaoXia TIAN Wei ZHANG ChengLi LI WuPing LI Shan | 2009 | Science China Earth Sciences2009，52，9： | 79 |
| 3 | LA-(MC)-ICPMS U-Pb zircon geochronology and Lu-Hf isotope compositions of the Taihua complex on the southern margin of the North China Craton显示文摘Widely distributed on the southern margin of the North China Craton,the Taihua complex extends roughly in an east-west direction and the relatively complete successions are found in Lushan County,Henan Province.Like many other Archean terranes,the Taihua Complex can be divided into two major lithological units along the Dangze River,namely gneisses series and supracrustal rocks.The former is located on the north side of the river and chiefly composed of TTG gneisses and amphibolites;the latter on the south side of the river is mainly supracrustal rock.Coupled with the previous studies,the results obtained by this study show that the Taihua complex was formed in a large time span from Neoarchean to Palaeoproterozoic.The TTG gneisses and amphibolites are dated at Neoarchean (2794–2752 Ma).The 2.9 Ga and 3.1 Ga zircons in amphibolites could be xenocrysts.In the North China Craton,the 2.8–2.7 Ga old rocks crop out in several areas e.g.western Shandong Province,Jiaodong Peninsula and Lushan area of Henan Province.In addition,2.8–2.7 Ga detrital zircons or xenocryst zircons have been recognized in Huai’an,Fuping,Wutai areas of North China Craton and also reported in the Early Paleozoic diamondiferous kimberlites in Mengyin and Fuxian.All these age results indicate that the 2.8–2.7 Ga rocks may have been developed much broader region than today’s outcrops.Zircon Hf and whole rock Nd isotopes show that the 2.8–2.7 Ga tectono-thermal event represents an important period of crustal growth with minor ancient crust reworked in the North China Craton.However the formation of supracrustal rocks is limited to 2.2–2.0 Ga in the Palaeoproterozoic time,not the Archaean,as previously believed.Combined with the chronological data of aluminium-rich metamorphic rocks (Khondalite series) on the southern margin of the North China Craton and adjacent areas,it is suggested that the above areas have widely developed Paleoproterozoic passive continental margin environment. | DIWU ChunRong SUN Yong LIN CiLuan WANG HongLiang | 2010 | Chinese Science Bulletin2010，55，23： | 72 |
| 4 | The oldest basement rock in the Yangtze Craton revealed by zircon U-Pb age and Hf isotope composition显示文摘Here we report an integrated study of zircon U-Pb age and Hf isotope composition for a gneiss sample from the Kongling terrain in the Yangtze Craton. CL imaging reveals that most zircons are magmatic, and a few of them have thin metamorphic rims. The magmatic zircons gave a weighted mean U-Pb age of 3218±13 Ma, indicating the gneiss is the oldest basement rock in the Yangtze Craton found to date. They have εHf(t) value of -2.33±0.51,and two-stage Hf model age of 3679±49 Ma,indicating that the gneiss was derived from partial melting of >3.6 Ga crustal rock. The metamorphic rims yielded an age of 2732±16 Ma, implying that the metamorphic event occurred in the Neoarchean era, which may be also a major tectono-thermal event in the Yangtze Craton. | JIAO WenFang WU YuanBao YANG SaiHong PENG Min WANG Jing | 2009 | Science China Earth Sciences2009，52，9： | 57 |
| 5 | 心力衰竭患者血浆脑钠素浓度与心功能的关系显示文摘目的 :研究心力衰竭 ( HF)患者血浆心房肽 ( ANP)、脑钠素 ( BNP)浓度与心脏原发疾病、HF严重程度及左室功能的关系。方法 :用放射免疫法测定 75例 HF患者 ( HF组 )及 60例健康体检者 (对照组 )血浆 ANP、BNP浓度 ;用 Swan- Ganz漂浮导管测定心脏指数 ( CI)和肺毛细血管楔入压 ( PCWP) ;用放射性核素 99m锝心血池扫描测定左室射血分数 ( L VEF)。结果 :HF组血浆 ANP、BNP浓度显著高于对照组 ( P <0 .0 1)。且均随着Forrester分级程度的加重而显著增加。血浆 ANP浓度与 PCWP之间具有良好的正相关 ( r =0 .64,P <0 .0 1)。血浆 BNP浓度与 CI、L VEF之间具有良好的负相关 (分别 r =- 0 .76,r=- 0 .78,均 P <0 .0 1)。HF组中心肌梗死者的血浆 BNP浓度显著高于心脏瓣膜病和扩张型心肌病者 ( P<0 .0 1)。结论 :HF患者血浆 ANP、BNP浓度随着 HF严重程度的增加而升高 ;心肌梗死后 HF患者血浆 BNP浓度的升高更加明显 ;HF患者的血浆 | 林杰 郑德琳 李庭富 | 2001 | 临床心血管病杂志2001，17，10： | 42 |
| 6 | Zircon U-Pb geochronology,Hf isotopic composition and geological implications of the rhyodacite and rhyodacitic porphyry in the Xiangshan uranium ore field,Jiangxi Province,China显示文摘The Xiangshan uranium ore field is the largest volcanic rock hosted uranium deposit in China.The host rock is a volcanic intrusive complex,including rhyodacite,porphyroclastic lava and late stage sub-volcanic rocks.In this study,zircons from an early stage rhyodacite and a late stage rhyodacite porphyry were dated by SHRIMP and LA-ICP-MS U-Pb methods,and their Hf isotopic compositions were measured by LA-MC-ICP-MS.206Pb/238U ages of 135.1±1.7 and 134.8±1.1 Ma were obtained for the rhyodacite and rhyodacitic porphyry,respectively.These accurate ages indicate that the Xiangshan volcanic-intrusive complex formed in the Early Cretaceous rather than in the Late Jurassic,as concluded in some previous studies.By the Early Cretaceous,the tectonic setting of the area has evolved into a back-arc extensional setting,possibly related to subduction of the paleo-Pacific plate.The close ages of the(early) eruptive rhyodacite and the(late) hypabyssal rhyodacitic porphyry shows that the Xiangshan volcanism was intensive and concentrated in a short time.Zircons from the rhyodacite show negative εHf(t) values of-5.7 to-8.5,with Hf depleted mantle model ages between 1550 and 1720 Ma,whereas zircons from the rhyodacitic porphyry yield εHf(t) values of-6.9 to-10.1 and Hf model ages between 1621 and 1823 Ma.These zircon Hf model ages are similar to the whole rock Nd model ages(1486 to 1911 Ma).Combined with other geochemical characteristics,the Xiangshan rhyodacite and rhyodacitic porphyry may have been derived from partial melting of the Paleo-Mesoproterozoic metamorphic rocks from the Xiangshan basement,without any significant addition of mantle-derived magma.Contribution of basement of this age is also supported by finding a Paleoproterozoic xenocrystic zircon core in the rhyodacite sample. | YANG ShuiYuan JIANG ShaoYong JIANG YaoHui ZHAO KuiDong FAN HongHai | 2010 | Science China Earth Sciences2010，53，10： | 40 |
| 7 | Early Paleozoic ridge subduction in the Chinese Altai: Insight from the abrupt change in zircon Hf isotopic compositions显示文摘Zircons were separated from granitoids, gneisses, and sedimentary rocks of the Chinese Altai. Those with igneous characteristics yielded U-Pb ages of 280-2800 Ma, recording a long history of magmatic activity in the region. Zircon Hf isotopic compositions show an abrupt change at ~420 Ma, indicating that prior to that time the magmas came from both ancient and juvenile sources, whereas younger magmas were derived mainly from juvenile material. This may imply that the lithosphere was signifi- cantly modified in composition by a rapid addition of melt from the mantle. We suggest that this dramatic change was due to the onset of ridge subduction, which can account not only for the formation of voluminous granitoids, mafic rocks with complex compositions, and the association of adakite + high-Mg andesite + boninite + Nb-enriched basalt, but also for the coeval high-T, low-P metamorphism. | SUN Min LONG XiaoPing CAI KeDa JIANG YingDe WANG BuYun YUAN Chao ZHAO GuoChun XIAO WenJiao WU FuYuan | 2009 | Science China Earth Sciences2009，52，9： | 33 |
| 8 | SHRIMP U-Pb dating and Hf isotopic analyses of Middle Ordovician meta-cumulate gabbro in central Qiangtang, northern Tibetan Plateau显示文摘Metabasites consisting of metamorphic ultra-mafic rocks, cumulate gabbro, gabbro (diabase), basalt, and plagiogranite are exposed at the Taoxinghu area in central Qiangtang, northern Tibetan Plateau. Zircon SHRIMP U-Pb dating for the cumulate gabbro yields a weighted mean age of 467±4 Ma, which is the oldest and most reliable magmatic age in this area. Zircon 176Hf/177Hf ratios range from 0.282615 to 0.282657, with εHf(t) values of 5.02±0.28, indicating that the cumulate gabbro was mainly derived from the depleted mantle. In addition, geochemical data of metabasites suggest that they have similar characteristics to those in the mid-ocean ridge basalts (MORB). The Taoxinghu metabasites may represent the fragment of Early Paleozoic ophiolite in the 'Central Uplift' of the Qiangtang, northern Tibetan Plateau. | ZHAI QingGuo1 WANG Jun1, LI Cai2 & SU Li3 1 Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China 2 College of Earth Sciences, Jilin University, Changchun 130061, China 3 The Geological Laboratory Center and State Key Laboratory of Geological Processes and Mineral Resources, China University of Geo- sciences, Beijing 100083, China | 2010 | Science China Earth Sciences2010，53，5： | 31 |
| 9 | NT-proBNP和BNP检测在急性脑梗死合并心力衰竭患者的诊断性能比较研究显示文摘目的比较分析氨基末端B型利钠肽原(NT-proBNP)与B型利钠肽(BNP)检测对合并脑梗死心力衰竭(HF)患者的诊断性能。方法采用临床与实验室标准化协会(CLSI)颁布的EPl5-A2文件验证NT-proBNP与BNP常用检测仪器“电化学发光免疫检测系统RocheCobasE601”和“化学发光免疫检测系统SIEMENSADVIACentaur”对NT—proBNP与BNP检测的精密度和准确度,保证仪器条件符合实验要求。收集不同程度慢性HF患者、脑出血患者、急性脑梗死患者、脑梗死伴HF患者及正常人群外周血共363例,分别采用罗氏Cobase601和BayerCentaur对样本NT—proBNP和BNP进行检测,观察NT—proBNP与BNP检测结果的变化趋势,并采用ROC曲线比较NT.proBNP与BNP对慢性HF及合并有脑梗死HF的诊断性能。结果CobasE601与ADVIACentaur对NT—proBNP与BNP检测均具有良好的重复性,总不精密度小于3.5%,与定值校准品的偏差小于3.91%,符合临床检测要求。比较发现,NT—proBNP与BNP不会在正常人和脑出血患者样本中表达升高。而在慢性HF患者、急性脑梗死患者及脑梗死伴HF患者样本中均明显升高(P〈0.01),升高程度与HF的严重程度有关。脑梗死伴Ⅰ度至Ⅲ度HF患者NT—proBNP升高幅度较同级慢性HF患者更为明显(P〈0.05),而BNP水平在两组中Ⅰ度和Ⅱ度HF患者中无明显变化,而在脑梗死伴Ⅲ度HF时,明显升高于慢性Ⅲ度HF患者。NT—proBNP与BNP对慢性HF患者均具有很好的诊断性能,ROC曲线下面积大于93%;而在脑梗死合并HF患者中,受脑梗死疾病影响,NT—proBNP与BNP诊断性能均有所下降,但BNP诊断曲线面积明显大于NT—proBNP(P〈0.05)。结论在脑梗死合并HF患者的诊断中,BNP较NT—proBNP能更好地反映HF的严重程度。 | 王伟佳 张秀明 王前 温冬梅 | 2012 | 中华检验医学杂志2012，35，10： | 31 |
| 10 | 德兴矿集区花岗闪长斑岩锆石U-Pb年龄、Hf同位素特征及其意义显示文摘德兴矿集区位于赣东北地区,是中国东部中生代钦杭成矿带中的大型铜金铅锌矿集区之一,集中了铜厂、富家坞和朱砂红斑岩铜钼(金)矿、银山银铜铅锌多金属矿和金山金矿等大型、超大型矿床。本文在系统的野外地质调查与样品采集的基础上,对铜厂、富家坞、朱砂红及银山花岗闪长斑岩进行了LA-MC-ICP-MS锆石U-Pb定年和原位Hf同位素分析。德兴矿集区花岗闪长斑岩的LA-MC-ICP-MS锆石U-Pb的4组年龄分别为:(171±1.2)Ma(铜厂)、(172±0.68)Ma(富家坞)、(173±1.3)Ma(朱砂红)、(176±1.5)Ma(银山),表明这些岩体均为中侏罗世的产物。样品Hf两阶段模式年龄平均值分别为861 Ma、876 Ma、904 Ma和941 Ma,正的εHf(t)平均值在4.34-5.54,Zr/Hf比值接近于上地幔的Zr/Hf比值。锆石Hf同位素组成显示,岩浆源区主要来源于亏损地幔组分,但在岩浆演化中遭受了古老地壳物质的混染,幔源物质在德兴矿集区花岗闪长斑岩的形成过程中发挥了重要作用。德兴矿集区4个矿床成岩成矿的最重要时期在170-175 Ma,该矿集区岩浆热液系统持续活动可能是该大型矿集区形成的重要原因。 | 水新芳 赵元艺 郭硕 吴德新 朱小云 王增科 | 2012 | 中国地质2012，39，6： | 33 |
| 11 | 东昆仑造山带祁漫塔格地区白干湖含钨锡矿花岗岩:岩石学、年代学、地球化学及岩石成因显示文摘白干湖钨锡矿床发育大量与成矿关系密切的花岗岩。LA-ICPMS 锆石U-Pb 年代学研究表明含矿更长花岗岩形成于(429.5±3.2) Ma, 二长花岗岩形成于(430.5±1.2) Ma。锆石Hf 同位素组成表明, 二长花岗岩的εHf(t)为–2.31-5.57, T2DM 主体为1188-1390 Ma; 含矿更长花岗岩εHf(t) 为–2.17-1.19, T2DM 主体为1338-1552 Ma, 两者具有相同的岩浆来源。在地球化学特征上, 二长花岗岩稀土总量高, 重稀土相对轻稀土明显亏损, 具中等—强烈Eu 负异常, 富集Y、Zr、Hf、Th、U, 亏损Rb、Nb、Ta, 属于弱准铝质或弱过铝质A 型花岗岩; 更长花岗岩受结晶分异以及后期岩浆热液影响, 地球化学特征表现出一定的差异。两者均为早志留世造山后局部拉张环境下地幔底侵重熔古老长英质地壳所形成。综合研究认为, 矿区钨锡成矿作用主要有两个阶段: 第一阶段, 早志留世, 地幔底侵重熔古老长英质地壳形成的含钨花岗质岩浆侵入过程中, 形成了岩体顶边部以及接触带中夕卡岩型、云英岩型钨矿体; 第二阶段, 岩浆期后热液淋滤围岩钨锡等金属, 沿裂隙充填形成了石英脉型钨矿体。 | 高永宝 李文渊 | 2011 | 地球化学2011，40，4： | 30 |
| 12 | 桂西北玉凤、巴马晚二叠世辉绿岩年代学、地球化学特征及成因研究显示文摘为了深入探讨扬子地块西南缘的玉凤和巴马辉绿岩是否受到峨眉山地幔柱活动的影响,对其进行了主量元素、微量元素及锆石 U-Pb 年龄测定。结果表明,它们属于钙碱性系列和高钾钙碱性系列,具高铝低镁特征,轻稀土富集,Ti/Y>500、Nb/La=0.75~0.85、Th/Ta=1.75~2.38、Ta/H〉0.1;锆石 LA-ICP-MS U-Pb 年龄分别为255.3±3.9 Ma 和257.6±2.9 Ma。初步认为,它们可能源自亏损地幔并受到少量地壳物质的混染作用,且均显示出大陆板内玄武岩的特征,应为峨眉山玄武质岩浆活动的产物。 | 张晓静 肖加飞 | 2014 | 矿物岩石地球化学通报2014，33，2： | 30 |
| 13 | 根据SF_6气体分解产物诊断电气设备故障显示文摘介绍了SF6气体分解的机理,以福建电网几例SF6电气设备故障的分析和检出,说明检测SF6分解产物是诊断SF6电气设备故障的一种有效手段。 | 连鸿松 | 2005 | 福建电力与电工2005，25，3： | 25 |
| 14 | 柴北缘西端盐场北山二长花岗岩年代学、地球化学及其Hf同位素特征显示文摘盐场北山二长花岗岩位于柴北缘西端青海冷湖地区.岩体高硅(74.98%~76.92%),富钾(4.44%~5.93%),贫镁(0.04%~0.07%)和钙(0.43%~0.69%).里特曼指数介于2.43~2.79属于高钾钙碱性岩石系列,铝饱和指数平均为1.01,属弱过铝质花岗岩.岩体富集大离子亲石元素(K、Rb、Ba、Pb),亏损高场强元素(Nb、Ta),具岛弧花岗岩地球化学特征.LA-ICP-MS锆石 U-Pb 测年结果表明:岩体形成于252±3 Ma;锆石 Hf 同位素初始比值176 Hf/177 Hf 分布于0.282958~0.283032之间,并具有极高的正εHf (t )值(8.75~14.50),其平均两阶段模式年龄 T DM2(Hf)为385 Ma,反映岩体源区可能为玄武质下地壳.另外,εHf (t )基本位于亏损地幔演化线附近,指示该玄武质下地壳来源于亏损地幔.结合区域地质背景和岩石地球化学特征,认为盐场北山二长花岗岩与泥盆纪镁铁-超镁铁岩有关,由于宗务隆裂谷小洋盆的向南俯冲,引发其上覆玄武质新生地壳发生熔融形成,进而揭示晚二叠世末柴北缘处于火山弧或活动陆缘的构造环境. | 董增产 辜平阳 陈锐明 查显锋 张海迪 | 2015 | 地球科学(中国地质大学学报)2015，40，1： | 25 |
| 15 | HF和H_2S作为气体绝缘组合电器绝缘缺陷诊断特征气体的有效性显示文摘局部放电特征气体监测是实现气体绝缘组合电器(GIS)缺陷预警的重要依据和手段。为探索潜在特征气体HF和H_2S与放电类型和程度的关联,在模拟试验平台上设置金属尖端放电、自由金属颗粒放电、气隙放电和沿面放电等四种典型放电模型。首次重点关注不同放电缺陷下HF和H_2S的变化规律,并在此基础上研究5A、F-03、KDHF-03等三种典型分子筛吸附剂对两种分解产物变化规律的影响。试验结果表明,HF和H_2S是GIS内两种重要的放电特征气体,其中HF可有效反映强局部放电,H_2S可用于表征较严重的涉及盆式绝缘子等环氧树脂固体介质放电;HF和H_2S活泼的化学性质和吸附剂对二者较强的吸附作用,决定了HF和H_2S特征气体难以在GIS气室内长期稳定存在。因此,开展HF和H_2S在线检测技术研究及应用对利用化学诊断法准确评估GIS的绝缘状态具有重要意义。 | 唐念 乔胜亚 李丽 樊小鹏 周文俊 | 2017 | 电工技术学报2017，32，19： | 26 |
| 16 | UHF RFID技术在图书馆中应用的试验与探讨显示文摘阐述了RFID(Radio Frequency Identification)技术在图书馆中的应用现状,分析了UHF(Ultra High Frequency)和HF(High Frequency)这两种工作频率对RFID应用在读写速度、读写距离、系统价格、环境适应性等方面所产生的影响。叙述了汕头大学图书馆进行'UHF RFID图书馆应用试验'的内容及过程,并在此实验的基础上分析研究了UHF RFID技术应用于图书馆的优势及特点。 | 李志清 | 2008 | 图书馆论坛2008，28，2： | 24 |
| 17 | U-Pb zircon geochronology and Hf isotope study of metamorphosed basic-ultrabasic rocks from metamorphic basement in southwestern Zhejiang:The response of the Cathaysia Block to Indosinian orogenic event显示文摘A combined study using LA-ICP-MS U-Pb dating, Hf isotopes, trace elements and the Ti-in-zircon geo-thermometer was carried out on zircons from the metamorphosed basic-ultrabasic rocks in the meta-morphic basement of the Cathaysia Block, southwestern Zhejiang Province. The formation and meta-morphic ages of the rocks from the metamorphic basement of the Cathaysia Block were determined based on zircon U-Pb geochronology. The age for the magmatic crystalline zircons from the protolith is about 1.85 Ga. The εHf(t) values of the older zircons were from ?7 to ?3, with two-stage model Hf ages (TDM2LC) of about 2.9 to 3.4 Ga, indicating that the source material was derived from anatexis and recy-cling of the Archean crust. The newly formed metamorphic zircons yielded U-Pb ages of 260―230 Ma. The metamorphic temperature calculated using the Ti-in-zircon geothermometer ranged from 610 to 720℃, consistent with the results from petrographic observations, indicating that the Cathaysia Block experienced an amphibolite facies metamorphism during the Indosinian. Results from this study pro-vided an important timeframe for the tectonic evolution in South China and the Southeast Asia during the Late Permian and Early Triassic times. | XIANG Hua ZHANG Li ZHOU HanWen ZHONG ZengQiu ZENG Wen LIU Rui JIN Song | 2008 | Science China Earth Sciences2008，51，6： | 24 |
| 18 | Hf含量对DD6单晶高温合金组织和持久性能的影响(英文)显示文摘研究了Hf含量对DD6单晶高温合金热处理组织和持久性能的影响。结果表明,在本实验研究范围内,随着Hf含量的增加,热处理后合金残余共晶量增加,枝晶干的γ′相尺度无明显变化,枝晶间的γ′相尺度有所减小。在1100℃,140MPa条件下,随着Hf含量的增加,合金的持久寿命先升高后降低,持久延伸率先快速增加,然后慢速增加。讨论了不同Hf含量合金的显微组织与持久性能的关系。 | 史振学 李嘉荣 刘世忠 骆宇时 赵金乾 | 2010 | 稀有金属材料与工程2010，39，8： | 22 |
| 19 | U-Pb zircon age and Hf isotope compositions of Mesoproterozoic sedimentary strata on the western margin of the Yangtze massif显示文摘Yangtze 山岳的西方的边缘上的 Mesoproterozoic 沉积阶层是一个碎屑状碳酸盐的岩石协会与凝灰岩和暗岩的小数量设置了并且在相对稳定的环境扔了。他们在不同区域分别地作为 Kunyang 组, Huili 组,和 Dongchuan 组被称为。我们执行了从这些组凝灰岩标明日期的锆石 U-Pb。结果,从 Kunyang 组和 Dongchuan 组结合了碎屑状的岩石的由岩屑形成的锆石 U-Pb 年龄,显示沉积从 1050~1000 妈 Kunyang 组和 Huili 组范围变老并且 Kunyang 组和 Huili 组与同时期的 heterotopic 外形属于一个沉积协会。由岩屑形成的锆石年龄和 Hf 同位素作文表明在 Kunyang 组和 Huili 组的碎屑状的材料首先从 Cathaysia 山岳被导出。在 ca.1.5 Ga 和所有锆石的年龄在 Dongchuan 组 clastics 变老的 Dongchuan 组收益的凝灰岩的锆石比 1.5 Ga 旧,显示 Dongchuan 组的沉积发生在迟了的 Mesoproterozoic Changcheng 时期期间。由岩屑形成的锆石的年龄系列显示 Dongchuan 组的碎屑状的材料首先从 Yangtze 山岳的古老的地下室被导出。以上述三个 stratigraphic 单位的锆石的各种各样的类型的一颗系统的 Hf 同位素决心证明在在 1.5 和 1.0 Ga 的锆石的起始的 Hf 价值有快速的举起。Kunyang 组和 Huili 组的沉积特征上的以前的研究证明两个在低岬盆被扔。把我们的数据与以前的研究相结合,我们建议 Kunyang 组和 Huili 组是沉积继任在 Grenvillian 期间在在 Yangtze 山岳和 Cathaysia 山岳之间的合并以后沿着 Yangtze 山岳的南部的方面形成了的低岬盆。Yangtze 山岳和 Cathaysia 山岳的集会从西方逐渐地发展了到东方并且最后在 0.9 Ga 在 Yangtze 山岳的东方片断被完成,代表 Rodinia supercontinent 集会的最后阶段。在锆石的 Hf 同位素作文显示 supercontinent 周期与外壳的生长有一种亲密关系。 | LI HuaiKun ZHANG ChuanLin YAO ChunYan XIANG ZhenQun | 2013 | Science China Earth Sciences2013，56，4： | 23 |
| 20 | Hf isotope composition of zircons and implication for the petrogenesis of Yajiangqiao granite,Hunan Province,China显示文摘In the peralumineous granite of Yajiangqiao zircon population can be divided into two groups (i.e. Zircon Ⅰ and Zircon Ⅱ), which were formed in magmatic chamber and in emplacement place, respectively. The Hf isotope compositions of two stages of zircon show that the host magma was essentially derived from crustal material by melting. However, some higher 176Hf/177Hf ratios indicate that the granitic zircons should contain fine crystal of zircon formed in mantle-derived magma. In fact, the backscattered electron imaging and the electron microprobe analysis reveal that there is another type of zircon included within Zircon Ⅰ, which is quite different from Zircon Ⅰ and Zircon Ⅱ in morphology and chemistry. They are considered to be the product of the mantle-derived magma intruded into the granitic magma chamber at the beginning of anatexis. Thus, it is suggested that the formation of Yajiangqiao granite is related to the underplating of mantle magma. | WANGXiang W.L.Griffin WANGZhicheng ZHOUXinmin | 2003 | Chinese Science Bulletin2003，48，10： | 22 |
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