研究兴趣
1.边缘海海盆成因演化的地球化学研究；
2.火成岩岩石学：南海地区新生代玄武岩成因研究；
3.地幔地球化学：幔源岩浆和包体的元素和同位素地球化学研究；
4.非传统稳定同位素。
科研项目
1.南海洋陆转换模式的洋壳岩石原位地球化学研究（22120210525），2021.11-2023.10，10万，bat365在线平台自主原创基础研究项目，负责人；
2.南海扩张初期洋壳增生的岩石地球化学研究（IODP-U1500站）（41906051），2020.01-2022.12，27万，国家自然科学基金青年课题，负责人；
3.国际大洋钻探计划合作研究（20590780200），2020.10-2023.09，270万，上海市科技创新行动计划国际科技合作项目，参与；
4.南海南部巽他陆架沉积古环境演变（2018YFE0202402），2019.08-2022.07，210万，国家重点研发计划战略性国际科技创新合作重点专项课题，参与；
5.南海中新世洋中脊玄武岩的镁和铁同位素组成（MG20190301），2019.01-12，15万，海洋地质国家重点实验室自主课题，负责人；
6.南海洋中脊玄武岩成因研究（17YF1420300），2017-2020，20万，上海市青年科技英才扬帆计划，负责人；
7.南海西南次海盆中新世洋中脊玄武岩成因研究与构造意义（2017M621525），2017-2018，5万，中国博士后科学基金面上资助，负责人；
8.南海中新世火山碎屑岩的成因与源区特征（MG20160408），2016-2017，10万，海洋地质国家重点实验室自主课题，负责人；
9.东北新生代高镁安山岩的成因（41672049），2017-2020，80万，国家自然科学基金面上课题，参与；
10.南太平洋Louisville海山玄武岩的成因与源区特征（41372064），2014-2017，99万，国家自然科学基金面上课题，参与；
11.中国东部新生代玄武岩的成因-以苏皖地区玄武岩典型剖析（41202039），2013-2015，25万，国家自然科学基金青年课题，参与；
12.山东蓬莱新生代玄武岩的源区组成（41172060），2012-2015，74万，国家自然科学基金面上课题，参与。
研究成果
学术论文:
1.Wu, J., Liu, Z., Yu, X., 2021. Plagioclase-regulated hydrothermal alteration of basaltic rocks with implications for the South China Sea rifting, Chemical Geology, 585, 120569.
2.Zeng, G., Chen, L.-H., Hofmann, A.W., Wang, X.-J., Liu, J.-Q., Yu, X., Xie, L.-W., 2021, Nephelinites in eastern China originating from the mantle transition zone, Chemical Geology, 576, 120276.
3.Liu, J.-Q., Erdmann, S., Chen, L.-H., Zhang, H.-L., Wu, B., Zeng, G., Wang, X.-J., Lei, Z.-L., Yu, X., 2021. Petrological evidence for magma recharge and mixing beneath the Ma’anshan monogenetic volcano of Xiaogulihe in Northeast China, Lithos, 382-383, 105928.
4.Wu, L., Wilson, D.J., Wang, R., Passchier, S., Krijgsman, W., Yu, X., Wen, T., Xiao, W., Liu, Z., 2020, Late Quaternary dynamics of the Lambert Glacier-Amery Ice Shelf system, East Antarctica, Quaternary Science Reviews, 10.1016/j.quascirev. 2020.106738.
5.俞恂, 陈立辉, 2020, 弧后盆地玄武岩的成分变化及其成因, 岩石学报, 36, 1953-1972.
6.Yu, X., Liu, Z., 2020, Non-mantle-plume process caused the initial spreading of the South China Sea, Scientific Reports, 10:8500, 10.1038/s41598-020-65174-y.
7.Li, Y., Yue, W., Yu, X., Huang, X., Yao, Z., Song, J., Shan, X., Yu, X., Yang, S., 2020, Tectonic evolution of the West Bogeda: Evidences from zircon U-Pb geochronology and geochemistry proxies, NW China, minerals, 10, 341, 10.3390/min10040341.
8.He, D., Lee, C.-T., Yu, X., Farner, M., 2019, Ge/Si partitioning in igneous systems: Constraints from laser ablation ICP-MS measurements on natural samples, Geochemistry, Geophysics, Geosystems, 20. 10.1029/2019GC008514.
9.Yu, X., Zeng, G., Chen, L.-H., Wang, X.-J., Liu, J.-Q., Xie, L.-W., Yang, T., 2019, Evidence for rutile-bearing eclogite in the mantle sources of the Cenozoic Zhejiang basalts, eastern China, Lithos, 324-325, 152-164.
10.Yu, X., Zeng, G., Chen, L.-H., Hu, S.-L., Yu, Z.-Q., 2018, Magma-magma interaction in the mantle recorded by megacrysts from Cenozoic basalts in eastern China, International Geology Review, doi:10.1080/00206814.2018.1446190.
11.Zeng, G., Chen, L.-H., Yu, X., Liu, J.-Q., Xu, X.-S., Erdmann, S., 2017, Magma-magma interaction in the mantle beneath eastern China, Journal of Geophysical Research: Solid Earth, doi: 10.1002/2017JB014023.
12.Yu, X., Chen, L.-H., Zeng, G., 2017, Magmatic recharge buffers the isotopic compositions against crustal contamination in formation of continental flood basalts, Lithos, 284-285, 1-10.
13.Liu, J.-Q., Chen, L.-H., Wang, X.-J., Zhong, Y., Yu, X., Zeng, G., Erdmann, S., 2017, The role of melt-rock interaction in the formation of Quaternary high-MgO potassic basalt from the Greater Khingan Range, northeast China, Journal of Geophysical Research: Solid Earth, doi: 10.1002/2016JB013605.
14.Yu, X., Lee, C.-T., 2016, Critical porosity of melt segregation during crustal melting: constraints from zonation of peritectic garnets in a dacite volcano, Earth and Planetary Science Letters, doi: 10.1016/j.epsl.2016.05.025.
15.Liu, J.-Q., Chen, L.-H., Zeng, G., Wang, X.-J., Zhong, Y., Yu, X., 2016, Lithospheric thickness controlled compositional variations in potassic basalts of Northeast China by melt-rock interactions potassic basalts of Northeast China, Geophysical Research Letters, doi: 10.1002/2016GL068332.
16.Yu, X., Chen, L.-H., Zeng, G., 2015, Growing magma chambers control the distribution of small-scale flood basalts, Scientific Reports 5, 16824. doi: 10.1038/srep 16824.
17.Yu, X., Lee, C.-T., Chen, L.-H., Zeng, G., 2015, Magmatic recharge in continental flood basalts: insights from the Chifeng igneous province in Inner Monogolia, Geochemistry, Geophysics, Geosystems, doi: 10.1002/2015GC00585.
18.An, Y.-J., Wu, F., Xiang, Y.-X., Nan, X.-Y., Yu, X., Yang, J.-H., Yu, H.-M., Xie, L.-W., Huang, F., 2014, High-precision Mg isotope analyses of low-Mg rocks by MC-ICP-MS. Chemical Geology, 390:9-21.
19.陈立辉, 曾罡, 胡森林, 俞恂, 陈霞玉, 2012, 地壳再循环与大陆碱性玄武岩的成因: 以山东新生代碱性玄武岩为例, 高校地质学报, 18: 16-27.
代表性会议摘要:
俞恂, 刘志飞, 陈立辉, 曾罡, 唐铭, 陈开运, 黄小龙, 2021, 南海洋壳玄武岩地球化学组成记录了陆弧基底背景下的洋陆转换过程, 地球系统科学大会, 会议摘要和口头报告.
Yu, X., Liu, Z., Chen, L.-H., Zeng, G., 2017, Geochemistry of South China Sea MORB and implications for deep geodynamics, AGU Fall Meeting, abstract and oral presentation.
俞恂, 曾罡, 陈立辉, 刘志飞, 王小均, 2017, 浙江新生代玄武岩的镁同位素组成：示踪地幔碳酸盐化的来源, 中国地球科学联合会, 会议摘要与主题报告.
Yu, X., Chen, L.-H., Zeng, G., 2016, Magmatic recharge buffers the isotopic compositions of continental flood basalts against crustal contamination, Goldschmidt conference, abstract and oral presentation.
Yu, X., Chen, L.-H., Lee, C.-T., Zeng, G., 2014, Recharge and growth of a deep crustal magma chamber over the lifespan of a flood basalt, Goldschmidt conference, abstract and poster presentation.
专著：
俞恂（2018）, 洋底高原—大火成岩省. 中国大洋发现计划办公室编著, 大洋钻探五十年, pp. 175-199, bat365在线平台出版社, 上海.
教学情况
参与教学课程：
《岩石学》、《蓝色海洋中的地球奥秘》(本科生)
《Marine Geology》(硕士研究生)
《同位素地球化学》(博士研究生)