李曙光 院士

李曙光,地球化学教授。1965年毕业于中国科学技术大学地球化学专业并留校任教,2012年调入中国地质大学(北京)任教。1983-1986年,作为访问学者在美国麻省理工学院地球与行星科学系进修。2003年被选为中国科学院院士。2003-2018年期间被列入爱思唯尔公布的高被引用地球与行星科学科学家。2005年获得何梁何利科技进步奖;2010年获得国家自然科学2等奖。曾任国家自然科学基金委员会第3-4届监督委员会常委,副主任。最近,他被选为美国和欧洲地球化学学会会士(2019)。

早年参加铁矿科研会战,应用趋势面分析成功预测弓长岭磁铁富矿床东南区深部富矿体,应用C同位素证明弓长岭磁铁富矿石中的石墨为无机成因,据此提出该富矿是沉积含菱铁矿富矿变质分解而成。该项目获1982年中国科学院科技进步2等奖。

1983-2010年致力于超高压变质岩同位素年代学和碰撞造山带地球化学研究。最早发现超高压榴辉岩的多硅白云母含大量过剩氩并指出Ar-Ar法不适合榴辉岩的多硅白云母定年;最早通过测定大别山榴辉岩年龄获得华北与华南陆块在三叠纪碰撞的结论;首次测定出大别山超高压岩石的二次快速冷却曲线,并通过Pb同位素示踪揭示了超高压变质岩多岩板、多阶段的快速折返机制。

2012年以来率先开展了利用Mg同位素示踪深部碳循环研究,发现中国东部上地幔存在大尺度Mg同位素异常,该异常区与地震层析成像揭示的在地幔过渡带滞留的俯冲板片分布区吻合。这一发现证明板块俯冲引入的再循环碳酸盐可进入深部对流上地幔。基于这一研究成果,他的最近一项研究论证了碳酸盐化地幔部分熔融产生的富CO2熔体作用于岩石圈地幔可导致岩石圈进一步减薄,而富CO2贫硅超碱性熔体转化为较富SiO2的弱碱性碱性玄武岩熔体。

谷歌学术主页: https://scholar.google.com/citations?user=Lnr5SLMAAAAJ&hl=zh-CN&oi=ao

Researcher Gate: https://www.researchgate.net/profile/Shuguang_Li9

发表文章 (代表性成果):

1.  Li Shuguang, S. R. Hart et al., 1989, timing of collision between the North and South China Blocks: the Sm-Nd isotopc age evidence. Science in China (series B), Vol. 32: 1391-1400.

2.  Li Shuguang, S. R. Hart and Wu Tieshan, 1990, Rb-Sr and Sm-Nd isotope dating of an early Precambrian splite-keratophyre sequence for Nd-isotopic homogenization in the mafic and felsic lavas during low-grade metamorphism. Precambrian Research, Vol. 47: 191-203.

3.  Li Shuguang et al., 1993, collision of the North China and Yangtz Blocks and formation of coesite-bearing eclogites: Timing and processes. Chemical Geology, Vol. 109: 89-111.

4.  Li Shuguang et al., 1994, Excess argon in phengite from eclogite:  Evidence from dating of eclogite minerals by Sm-Nd, Rb-Sr and 40Ar/39Ar methods. Chemical Geology, Vol. 112, 343-350.

5.  Li Shuguang, et al., 2000. Sm-Nd and Rb-Sr isotopic chronology and cooling history of ultrahigh pressure metamorphic rocks and their country rocks at Shuanghe in the Dabie Mountains, central China. Geochim. Cosmochim. Acta, 64(6): 1077-1093.

6.  Li S.-G., Wang C.-X., Dong F., Li Q.-L., Liu Y.-C., Huang F., Chen F.-K., 2009. Common Pb of UHP metamorphic rocks from the CCSD project (100-2000 m): suggesting decoupling within subducting continental crust and thin slab exhumation, Tectonophysics, 475, 308-317.

7.  Liu S-A*, Li S.-G*. He Y-S, Huang F., 2010. Geochemical contrasts between early Cretaceous ore-bearing and ore-barren high-Mg adakites in central-eastern China: Implications for petrogenesis and Cu–Au mineralization. Geochim. Cosmchim. Acta, 74: 7160-7178.

8.  He YS, Li SG*, Hoefs J, Huang F, Liu SA, Hou ZH (2011) Post-collisional granitoids from the Dabie orogen: New evidence for partial melting of a thickened continental crust. Geochimica et Cosmochimica Acta 75: 3815–3838.

9.  Yang W., F.-Z. Teng, H.-F. Zhang, S.-G. Li, 2012. Magnesium isotopic systematics of   continental basalts from the North China craton: Implications for tracing subducted carbonate in the mantle. Chemical Geology, 328: 185-194.

10.  Li Shu-Guang, He YongSheng, Wang ShuiJiong, 2013. Process and mechanism of mountain-root removal of the Dabie Orogen—Constraints from geochronology and geochemistry of post-collisional igneous rocks. Chinese Science Bulletin 58, 4411- 4417.

11.  He Yongsheng*, Li Shuguang*, Jochen Hoefs, Ilka C. Kleinhanns, 2013. Sr-Nd-Pb isotopic compositions of Early Cretaceous granitoids from the Dabie orogen: Constraints on the recycled lower continental crust. Lithos, 156-159: 204-217.

12.  Wang S.-J,* Li S.-G.* Chen L.-J., He Y.-S., An S.-C., Shen J., (2013) Geochronology and geochemistry of leucosomes in the North Dabie Terrane, East China: implication for pos-UHPM crustal melting during exhumation. Contribution of Mineral and Petrology 165,1009-1029, doi: 10.1007/s00410-012-0845-2\

13.  Wang S.-J*, Li S.-G.*Liu S.-A., 2013. The origin and evolution of low-δ18O magma Recorded by multi-growth zircons in granite. Earth and Planetary Science Letters 373: 233–241

14.  Li S.-G., Wang W.-J., Guo S.-S., Xiao Y.-L., Liu L.-Y., Liu S.-A., He Y.-S., Liu J-L., 2014. Geochronology and geochemistry of leucogranites from the southeast margin of the North China Block: Origin and migration. Gondwana Research 26 (2014) 1111–1128.

15.  Wang, S.-J., Teng, F.-Z., Li, S.-G., Hong, J.-A.(2014a) Magnesium isotopic systematics of mafic rocks during continental subduction. Geochimica et Cosmochimica Acta 143, 34-48. .

16.  Wang, S.-J., Teng, F.-Z., Li, S.-G. (2014b) Carbonate-silicate interaction during subduction tracing by Mg and O isotopes. Nature Communications, DOI: 10.1038/ncomms6328.1-6.

17.  Huang J., Li S.-G.*, Xiao Y.-L., Li W.-Y., Tian Y., 2015. Origin of low d26Mg Cenozoic basalts from South China Block and their geodynamic implications. Geochimica et Cosmochimica Acta 164, 298-317.

18.  Ke S., Teng F.-Z.*, Li S.-G.*, Gao T., Liu S.-A., He Y.-S., Mo X.-X., 2016. Mg, Sr, and O isotope geochemistry of syenites from northwest Xinjiang, China: Tracing carbonate recycling during Tethyan oceanic subduction. Chemical Geology 437, 109-119.

19.  Tian H.-C., Yang W.*, Li S.-G.*, Ke S., Chu Z.-Y., 2016. Origin of low d26Mg basalts with EM-I component: Evidence for interaction between enriched lithosphere and carbonated asthenosphere. Geochimica et Cosmochimica Acta 188, 93-105.

20.  Wang Z.-Z., Liu S.-A.*, Ke S., Liu Y.-C., Li S.-G.*, 2016. Magnesium isotopic heterogeneity across the cratonic lithosphere in eastern China and its origins. Earth and Planetary Science Letters 451, 77-88.

21.  Li, S.G*., Yang, W.,  Ke, S.  et al. 2017, Deep carbon cycles constrained by A large-scale Mg isotope anomaly in eastern China. National Science Review 4:111-120. doi: 10.1093/nsr/nww070.

22.  Li S.-G*. and Wang Y.2018. Formation time of the big mantle wedge beneath eastern China and a new lithospheric thinning mechanism of the North China craton—Geodynamic effects of deep recycled carbon. SCIENCE CHINA Earth Sciences; doi:10.1007/s11430-017-9217-7

23.  Tian H-C, Yang W*, Li S-G*, Ke S, Duan X-Z, 2018. Low d26Mg volcanic rocks of Tengchong in Southwestern China: A deep carbon cycle induced by supercritical liquids. Geochimica et Cosmochimica Acta 240 (2018) 191–219. doi.org/10.1016/j.gca.2018.08.032

24.  Shen J*, Li S-G*, Wang S-J, Teng F-Z, Li Q-L, Liu Y-S, 2018. Subducted Mg-rich carbonates into the deep mantle wedge. Earth and Planetary Science Letters 503 (2018) 118–1.

25.  An S-C, Li S-G*, Liu Z, 2018. Modification of the Sm–Nd isotopic system in garnet induced by retrogressive fluids. J Metamorph Geol. 2018;36:1039–1048.