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| 1 | Discovery of mantle and lower crust xenoliths from early Cretaceous volcanic rocks of southwestern Tianshan,Xinjiang显示文摘In Tuoyun area of southwestern Tianshan, mantle and lower crust xenoliths are present In the volcanic rocks with ages of 101-123 Ma. Mantle xenoliths include mineral megacrysts such as kaersutite and pargasite, feldspar, biotite, and rare pyroxene and rock fragments such as perodotite, pyroxenite, amphibolite, and rare glimmerite. Lower crust xenoliths are mainly banded and massive granulite. The volcanic rocks were produced by within-plate magmatism. Occurrence of hydrous and volatile mineral megacrysts, amphibolite, and some pyroxenite containing hydrous and volatile minerals indicates that mantle metasomatism was intense. Undoubtedly, this discovery is very important to understanding of the crust-mantle structure and geodynamic background in depth in southwestern Tianshan and geological correlation with adjacent regions. | Baofu Han Xuechao Wang Guoqi He Tairan Wu Maosong Li Yulin Liu Shiguang Wang | 1999 | Chinese Science Bulletin1999，44，12： | 11 |
| 2 | 华北克拉通西部陆块北缘新生代岩石圈地幔特征的初步研究显示文摘凉城、四子王旗、三义堂和大同的地幔包体的岩石学和矿物的主、微量元素成分显示华北克拉通中、西部北缘总体为过渡型岩石圈地幔,为原始地幔经过不同程度的熔体抽取和后期交代富集作用的残留。凉城岩石圈地幔经历的熔体抽取程度最低,后期交代富集作用比较强烈,这与其橄榄岩中尖晶石的Cr#较低,并且共存的单斜辉石的Mg#较低一致。三义堂岩石圈地幔经历的熔体抽取程度最高,后期交代富集作用最强烈,不同样品甚至同一样品中不同单斜辉石颗粒的La/Yb和LREE配分模式变化范围非常大,且矿物边部比核部更富集微量元素。大同、四子王旗岩石圈地幔经历的熔体抽取程度介于凉城和三义堂之间,但后期的交代富集作用明显不如凉城和三义堂强烈。研究区的岩石圈地幔主要受硅酸盐熔体交代作用的影响,只有三义堂岩石圈地幔还可能也受到了碳酸盐交代作用的影响。 | 王亚妹 William L GRIFFIN 韩宝福 WANG YaMei HAN BaoFu | 2011 | 岩石学报2011，27，10： | 9 |
| 3 | Geochemical characteristics of the metapelites from the Xingxingxia group in the Eastern Segment of the Central Tianshan:Implications for the provenance and paleoweathering显示文摘Metapelites from the Mesoproterozoic Xingxingxia group in the Eastern Segment of the Central Tianshan, Northwestern China, were analyzed for major and trace elements, includ-ing rare earth elements. Compared with post-Archean shales, the metapelites are enriched in Sr, Hf and Zr. The other elements are similar to the compositions of the Phanerozoic North American Shale Composite and the Post-Archean Australian average Shale (PAAS). The characteristics of Al2O3/TiO2, Cr/Zr, Cr/Th, Th/Sc and high Zr concentration suggest that these pelites could be derived from a significant proportion of felsic and a few proportion of participation of mafic mate-rials in nature. These rocks display highly fractionated REE patterns, and average (La/Yb)n = 18.6. Several samples have slightly negative Eu anomalies (Eu/Eu* = 0.7―0.84) in comparison with PAAS (Eu/Eu* = 0.65), indicating contribution from young immature materials. The low K2O/Al2O3 values of these metapelites suggest that their source materials could contain minimal alkali feldspar. In the A-CN-K triangular diagram, the sample data array intersects the feldspar join, indicating that the source had a plagioclase: K-feldspar ratio of approximately 5:1, repre-senting weathered products from components that could approximately correspond to granodio-rites and tonalites. The low Chemical Index of Alteration (CIA) and high Index of Compositional Variability (ICV) values suggest low degrees of weathering of the source and low compositional maturity of the sediments, respectively. The geochemical characteristics of the metapelites from the Xingxingxia group also demonstrate that these sediments were deposited in a back-arc background within a continental-arc system. | LI Qiugen LIU Shuwen HAN Baofu WANG Yueran DANG Qingning | 2005 | Science China Earth Sciences2005，48，10： | 4 |
| 4 | Platinum-group element geochemistry of Cenozoic basalts from the North China Craton: Implications for mantle heterogeneity显示文摘42 新生代(主要中新世) 从北方中国 Craton 的 Jining, Chifeng, Fansi, Xiyang,和 Zuoquan 区域的暗岩样品(NCC 暗岩此后) 为铂组元素(PGE,包括的 O,红外, Ru, Rh,磅,和 Pd ) 被分析。他们中的大多数是碱的暗岩和 tholeiites,所有几乎不他们显示很少外壳的污染。NCC 暗岩的全部的 PGE 内容从 0.1 ~ 0.9 ppb 变化,原始披风的比那些低的大部分 23.5 珍视 ppb。这些暗岩的原始使披风正常化的 PGE 模式定义积极斜坡和 Pd/Ir 比率从 1.2 ~ 25 变化。以 PGE 内容和 Pd/Ir 比率,他们相当类似于海中央山脉暗岩。在 PGE 之间没有明显的否定关联,显示在 magmatic 期间的橄榄石,辉石,或硫化物的部分结晶化处理对在 NCC 暗岩的 MgO, Ni,和 Cu 不能是为观察 PGE 变化的控制因素。NCC 暗岩的观察 Pd/Ir 变化要求异构的披风采购的 non-chondritic 的参与。基于 Sr-Nd-Pb-Hf 同位素的 systematics 和不兼容元素的签名,一混合部分在岩流圈的顶从 asthenospheric 橄榄岩和围住的披风 eclogites 融化为这些 NCC 暗岩的起源被建议。eclogites 的透镜从再循环的大陆人外壳的 upwelling 被导出在期间向西从 600 km 断绝地区的和平的板的 subduction。这些暗岩的 PGE 地球化学提供独立证据支持这个结论和观察 Pd/Ir 变化可以在拍的 peridotitic 的比例反映变化, eclogitic 融化。 | ZHANG WenHui ZHANG HongFu SUN YaLi FAN WeiMing HAN BaoFu TANG YanJie | 2015 | Science China Earth Sciences2015，58，6： | 4 |
| 5 | Depletedmantle source for the Ulungur River A-type granites from North Xinjiang, China: Geochemistry and Nd-Sr isotopic evidence, and implication for Phanerozoie crustal growth显示文摘 | Han baofu Wang shiguang Jahn borming | 1997 | Chemical Geology1997，138，： | 1 |
| 6 | Age, geochemistry, and tectonic implications of a late Paleozoic stitching pluton in the North Tian Shan suture zone, western China显示文摘 | Han Baofu Guo Zhaojie Zhang Zhieheng | 2010 | Geological Society of America Bulletin2010，122，： | 1 |
| 7 | Structural,Kinematic and Geochronological Study of the Main Tianshan Shear Zone in the Borohoro Ranges,NW China显示文摘The western segment of the Main Tianshan shear zone(MTSZ)branches into three major dextral strike-slip shear zones in the Borohoro Ranges,northwestern China.Mylonitic rocks within these zones exhibit vertical foliations,subhorizontal lineations,and dextral kinematics.The microstructures and CPO patterns of calcite and quartz in the tectonites suggest shearing at temperatures of 200℃ to 500℃ or above.The amount of dextral displacement along the zones is less than 100 km.LA-ICP-MS U-Pb dating of zircons from some pre-kinematic granites gave ages of 364-325 Ma and 316 Ma,and zircons from a syn-kinematic leucogranite gave an age of 291 Ma.We propose that dextral shearing along the MTSZ started in the earliest Permian.Our data indicate that collision between the Yili and Junggar plates might have finished before 325 Ma or 316 Ma,with a tectonic transformation from 325 Ma to 300 Ma,resulting in intracontinental transpression from 300 Ma or 291 Ma.We suggest that the formation of the Kazakhstan orocline(KO)took place in two stages,with the early stage of bending driven by convergence related to oblique subduction,and the late stage possibly associated with lateral disarticulation as a result of the dextral strike-slip shear zones. | LIU Tianlun CHEN Siyu ZHANG Bo CAI Keda HAN Baofu QU Junfeng GUO Lei WANG Meng | 2021 | Acta Geologica Sinica(English Edition)2021，95，5： | 1 |
| 8 | Chronological constraints on multi-staged rapid cooling of the Tianshan Mountains inferred from apatite fission track analysis of modern river sands显示文摘The extreme modern elevation of the Tianshan Mountains reflects the Cenozoic deformation.Apatite Fission Track(AFT)chronometry is widely used to study the latest cooling stages caused by tectonic process or by exhumation in the uppermost crust.However,uncertainties remain over timing constraints on thermal history of the Tianshan Mountains since the Cenozoic though a great mount of dating work had been done in this area.To address this issue,modern river sands from the drainage basin on the piedmont of the Tianshan Mountains were sampled to integrate regional information.Single grains were dated with the AFT method,and then different grain-age components were identified to provide thermochronological constraints of their sources.Combined with discussion of previous dataset,our results show the multi-staged rapid cooling cluster at 46–32,25–24,19–13,8–6,and^3 Ma,respectively.We interpreted these cooling events as a result of interplays between the Cenozoic tectonic uplift of the mountains and regional climate change. | WANG LiNing JI JianQing SUN DongXia XU QinQin HAN BaoFu | 2015 | Science China Earth Sciences2015，58，8： | 1 |
| 9 | Depleted-mantle source for the Ulungur River A-type granites from North Xinjiang, China: geochemistry and Nd-Sr isolopic evidence, and implication for Phanerozoic crustal growth显示文摘 | Han Baofu Wang Shiguang Jahn borming | 1997 | Chemical Geology1997，138，： | 1 |
| 10 | Depleted-mande source for the Ulungur River A-type gran ites from North Xinjiang, China:geochemistry and Nd-Sr isotopic evidence, and implication for Phanerozoic crustal growth 显示文摘 | Han baofu Wang shiguang Jahn borming el al | 1997 | Chemical Geology1997，138，： | 1 |
| 11 | Petrogenesis and Tectonic Implications of Middle Ordovician Ocean Island Basalts from the Chagantaolegai Ophiolitic Mélange in Junggar,NW China显示文摘Seamount accretion is one of the most significant accretionary orogenic processes in the Central Asian Orogenic Belt,but there are few paleo-seamounts reported from and debate on the tectonic evolution of the Junggar Ocean still exists.In this study,we present geochronological,mineralogical,geochemical and isotopic data for basalts from the Chagantaolegai ophiolitic mélanges in Junggar.Zircon U-Pb dating on one basalt yielded a weighted mean^(206)Pb/^(238)U age of 469±7 Ma,which suggests that it formed in the Middle Ordovician.All rock samples belong to alkaline basalt and show similar geochemical characteristics,displaying high TiO_(2)(~3 wt%),(La/Yb)N(17.6–19.0),ΣREE(232–289 ppm)and enrichment in Nb and Ta,which implies an ocean island basalt(OIB)affinity.Based upon positiveεN d(t)(+4.16 to+4.23),ΔNb(0.20–0.22)and low initial^(87)Sr/^(86)Sr(0.70425 to 0.70452)and Zr/Nb(3.35–3.57),we suggest that the Chagantaolegai OIB samples were likely derived from a fertile mantle source related to plume.The OIB rock assemblage,chert and marble in the southern part of the Chagantaolegai ophiolitic mélange indicates that a Middle Ordovician seamount was accreted to the Boshchekul-Chingiz arc due to the northward subduction of the Junggar-Balkhash Ocean. | CHEN Jiafu LI Rongyan MA Haitao HAN Baofu LIU Junlai | 2021 | Acta Geologica Sinica(English Edition)2021，95，4： | 0 |
| 12 | Discovery of a Miocene Mafic Dyke from the Western Hills of Beijing and its Geological Implications显示文摘现在的学习是从 Dahuichang 的中新世的 mafic 女同性恋的第一份报告,在北京的西方的山。塘切石块过时 Changxindian 形成始新世 14 15 妈的序列和收益 K-Ar 年龄。塘是有细密纹理的辉绿岩并且有49.84%50.81% SiO 2和 3.56 3.97% Na 2 O+K 2 O ,高 TiO 2(1.65%1.93%)并且 MgO (7.36%9.85%),并且低 K 2 O (<1.22%)内容,与 Na 2 O>K 2 O 和稍微改变的镁数( Mg#=55.54 62.74 )。在踪迹元素地球化学,塘很类似于从 Jining 和 Hanuoba 的中新世的暗岩。轻稀土元素元素的丰富([ La/Yb ] N =5.03 6.12 )并且大离子亲石元素元素( LILE ),没有否定 Eu 异例,相对高的 Cr ( 265 326 ppm )和 Ni ( 155 262 ppm ),并且几乎经常的 V 集中( 194 213 ppm )表明作文从充实披风的来源关门到主要玄武岩的岩浆,与很少外壳的污染和部分结晶化。玄武岩的岩浆可能被导出从起来在东方中国下面的 welling 岩流圈披风在中新世的石版印刷期间球的变瘦。 | ZHANG Zhicheng HAN Baofu WU Tairan | 2009 | Acta Geologica Sinica(English Edition)2009，83，3： | 0 |
| 13 | A rare zigzag mud crack显示文摘MUD crack is a common bedding-plane structure, but the zigzag mud cracks (figs. 1 and 2) are rare phenomena that were found beside G314 highway from Kaxgar to Taxkorgan in Xin-jiang, China. From the photographs we can find that there are footprints of a small animal at every top of zigzag. The zigzag cracks were controlled admittedly by the animal slightly disturbing just when they were breaking. There is a phenomenon worth researching further (fig. 1 ). Distributing equality of zigzags, the horizontal crack (F1) is cracked along the footprints strictly. The vertical one (F2) was not cracked regularly and confined by F1. The crack was | Tairan Wu Guoqi He Baofu Han | 1999 | Chinese Science Bulletin1999，44，4： | 0 |
| 14 | The Middle Devonian Bimodal Association of Volcanic Rocks in the Northern Area of East Junggar, Xinjiang显示文摘The Middle Devonian volcanic rocks in the northern area of East Junggar, located between the Ertix andUlungur rivers of northern Xinjiang, may be divided into basic and acid ones. It is evident that a compositionalgap exists between the two groups so that the volcanic rocks are not in line with a calc-alkaline series becausethe intermediate rocks are absent in the area. The fact shows that the volcanic rocks are a typical bimodal asso-ciation. The formation of the bimodal association of volcanic rocks in the area was closely related to continen-tal rifting or continental extension in the Middle Devonian. In such a tectonic setting, magmas were first pro-duced by partial melting of the mantle. Where crustal thinning was greater, the magmas ascended and eruptedon the surface directly so that the basic volcanic rocks formed, but olivine and/or partial pyroxenefractionation occurred in the magmas during their ascent through the thinning crust. On the other hand, wherecrustal thinning was less, ascending mantle-derived magmas reached the lower crust and accumulated there, re-sulting in partial melting of the lower crust and thus giving rise to the contaminated magma which was consoli-dated as acid volcanic rocks on the surface. | Han Baofu Department of Geology, Peking University, Beijing | 1992 | Acta Geologica Sinica(English Edition)1992，66，2： | 0 |
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