Alexandra Yang Yang----Guangzhou Institute of Geochemistry, Chinese Academy of Sciences

Faculty and Staff

Visiting Scholars

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Name: Alexandra Yang Yang(杨阳)

Title: Associate Professor

Phone: +86(20)85292874

Email: yangyang@gig.ac.cn

Website: https://www.researchgate.net/profile/Alexandra_Yang

Resume:

Education

2008–2013 Ph.D.; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences

2003–2007 B.S.; Lanzhou University

Employment

2017-present Research Associate Professor, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences

2019.10 Visiting scientist, Harvard University, USA

2014-2015 Postdoctoral Research Associate, Cardiff University, UK

2014-2016 Research Assistant Professor, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences

2010-2011 Research Assistant, the University of Hong Kong

Seagoing experience

2014 International Ocean Discovery Program (IODP) 350, Izu-Bonin Mariana Rear Arc

(Inorganic Geochemist)

2021 International Ocean Discovery Program (IODP) 395, Reykjanes Mantle Convection

and Climate (Inorganic Geochemist)

Research Interests：

　　In order to better understand the composition and evolution of the Earth’s mantle, and the trans-crustal transportation of mantle-derived magmas, my research group studies the major, trace, volatile element abundances as well as radiogenic and stable isotopic compositions of volcanic rocks erupted at mid-ocean ridges, arcs and back-arc basins. The questions that we’d like to answer from such studies include:

　　1. What is the composition of convecting upper mantle?

　　2. What is the role of subduction in deep Earth volatile cycles?

　　3. What are the transport rates of mantle-derived magma at different settings and their primary controls?

　　Currently, our main research areas include but are not limited to:

　　1. Gakkel Ridge in the Arctic Ocean

　　2. Southwest Indian Ridge in the Indian Ocean

　　3. Iceland and Mid-Atlantic Ridge

　　4. Izu-Bonin-Mariana arc and Mariana Trough

　　5. Tonga arc and Lau Basin

　　6. South Sandwich arc and Scotia Basin

　　

　　If you are interested in further developing research projects with me as Master students, PhD and postdocs, feel free to email me.

Recent Publications：

1. Yang, A. Y.*, Langmuir, C. H., Michael, P. J., 2024. The significance of recycled oceanic mantle lithosphere beneath the Arctic Gakkel Ridge. Earth and Planetary Science Letters, 626, 118553, doi:https://doi.org/10.1016/j.epsl.2023.118553

2. Ma, J. F., Wang, X. L., Yang, A. Y., Zhao, T. P., 2023. Tracking Crystal‐Melt Segregation and Accumulation in the Intermediate Magma Reservoir. Geophysical Research Letters. 50, e2022GL102540.

3. Zhao, S.Y., Yang, A.Y.*, Langmuir, C., Zhao, T.P., 2022. Oxidized primary arc magmas: constraints from Cu/Zr systematics in global arc volcanics. Science Advances 8(12): eabk0718.

4. Wang, J., Wang, Q., Zeng, J.-P., Ou, Q., Dan, W., Yang, A.Y., Chen, Y.-W., Wei, G., 2022. Generation of continental alkalic mafic melts by tholeiitic melt–mush reactions: A new perspective from contrasting mafic cumulates and dikes in central Tibet. Journal of Petrology 63(5): egac039.

5. Yang, A. Y., Langmuir, C. H., Cai, Y., Michael, P., Goldstein, S. L., Chen, Z., 2021. A subduction influence on ocean ridge basalts outside the Pacific subduction shield. Nature Communications, 12(1): 1-10,

6. Cai, Y., Yang, A.Y., Goldstein, S.L., Langmuir, C.H., Michael, P.J., Cochran, J.R., Zhang, W., Wang, D., Bolge, L., 2021. Multi-stage melting of enriched mantle components along the eastern Gakkel Ridge. Chemical Geology 586, 120594.

7. Yang, A. Y., Wang, C., Liang, Y., & Lissenberg,C. J. 2019. Reaction between mid-ocean ridge basalt and lower oceanic crust: An experimental study. Geochemistry, Geophysics, Geosystems. 20(9): 4390-4407

8. Lan, C. Y., Yang, A. Y., Wang, C. L., Zhao, T. P., 2019. Geochemistry, U-Pb zircon geochronology and Sm-Nd isotopes of the Xincai banded iron formation in the southern margin of the North China Craton: Implications on Neoarchean seawater compositions and solute sources, Precambrian Research, 326: 240-257.

9. Yang, A. Y., Zhao T.-P., Zhou M.-F., and Deng X.-G., 2017. Isotopically enriched N-MORB - a new geochemical signature of off-axis plume-ridge interaction: A case study at 50°28’E, Southwest Indian Ridge, Journal of Geophysical Research -- Solid Earth, 122(1): 191-213,

10. Busby, C. J., Y. Tamura, P. Blum, G. Guerin, G. D. M. Andrews, A. K. Barker, J. L. R. Berger, E. M. Bongiolo, M. Bordiga, S. M. DeBari, J. B. Gill, C. Hamelin, J. Jia, E. H. John, A.-S. Jonas, M. Jutzeler, M. A. C. Kars, Z. A. Kita, K. Konrad, S. H. Mahony, M. Martini, T. Miyazaki, R. J. Musgrave, D. B. Nascimento, A. R. L. Nichols, J. M. Ribeiro, T. Sato, J. C. Schindlbeck, A. K. Schmitt, S. M. Straub, M. J. Mleneck-Vautravers and A. Y. Yang, 2017. "The missing half of the subduction factory: shipboard results from the Izu rear arc, IODP Expedition 350." International Geology Review 59(13): 1677-1708.

11. Li, J., Zhao, P.-P., Liu, J., Wang, X.-C., Yang, A.Y., Wang, G.-Q., Xu, J.-F., 2015. Reassessment of hydrofluoric acid desilicification in the Carius tube digestion technique for Re-Os isotopic determination in geological samples. Geostandards and Geoanalytical Research 39, 17-30.

12. Yang, A.Y., Zhou, M.-F., Zhao, T.-P., Deng, X.-G.,Qi. L., Xu, J.-F., 2014. Chalcophile elemental compositions of MORBs from the ultraslow-spreading Southwest Indian Ridge and controls of lithospheric structure on S-saturated differentiation. Chemical Geology 382, 1-13.

13. Gao, X.Y., Zhao, T.-P., Bao, Z.W., Yang, A.Y., 2014. Petrogenesis of the early Cretaceous intermediate and felsic intrusions at the southern margin of the North China Craton: Implications for crust–mantle interaction. Lithos 206, 65-78.

14. Yang, A.Y., Zhao, T.-P., Zhou, M.-F., Deng, X.-G., Wang, G.-Q., Li, J., 2013. Os isotopic compositions of MORBs from the ultra-slow spreading Southwest Indian Ridge: Constraints on the assimilation and fractional crystallization (AFC) processes. Lithos 179, 28-35.

15. Yang, A.Y., Zhao, T.-P., Qi, L., Yang, S.-H., Zhou, M.-F., 2011. Chalcophile elemental constraints on sulfide-saturated fractionation of Cenozoic basalts and andesites in SE China. Lithos 127, 323-335.

Funded Projects：

1. Interaction between the Earth’s spheres: constraints from ocean rocks, NSFC, 2024-2026, PI

2. Water and sulfur cycles in typical subduction zones, National Key R&D Program of China, 2023-2028, PI

3. Origin of water-rich mantle with Dupal anomaly beneath Arctic, NSFC, 2022-2025, PI

4. Geochemical behavior of sulfur in magmas from the Izu-Bonin-Mariana arc: constraints on the origin of high oxygen fugacity of arc magmas, NSFC, 2018-2021, PI

5. Abyssal peridotites from Southwest Indian Ridge: petrogenetic and geological implications, NSFC, 2015-2017, PI

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