CHENG Lilu

My main research interests are in the processes of mantle-derived magmas storage, crystallization, mixing and eruption in the crust, and the genesis of intermediate and silicic magmas. I was working in magma processes of Emeishan Large igneous province (SW China) for several years. I have used some different techniques (e.g. geochemistry, crystal size distribution; petrology; numerical modeling) to further constrain nature of magma storage and eruption in Emeishan LIP. Now i try to combine new statistical tools based on pattern recognition with simple thermodynamic models to understand the crystal zoning patterns and crystal population and thus unravel the processes that drive eruptions at open vent volcanoes.

Publications:

Cheng, L., Costa F., & Bergantz G. (2020). Linking fluid dynamics and olivine crystal scale zoning during simulated magma intrusion. Contributions to Mineralogy and Petrology . 176(6),
Wang, Y., Peate I. U., Luo Z., Wang S., Cheng L., Hao J., et al. (2019). Rifting in SW China: structural and sedimentary investigation of the initial crustal response to emplacement of the Permian Emeishan LIP. Geological Magazine. 156(4), 745-758.
Zeng, L., Cheng L., Costa F., & Herrin J. S. (2018). CEmin: A MATLAB-Based Software for Computational Phenocryst Extraction and Statistical Petrology. Geochemistry Geophysics Geosystems. 19(4), 1378-1392.
Yu, W., Peate I., Luo Z., Wang S., Cheng L., Hao J., et al. (2018). Rifting in SW China: structural and sedimentary investigation of the initial crustal response to emplacement of the Permian Emeishan LIP. Geological Magazine. 156(4), 745-758.
Cheng, L., Costa F., & Carniel R. (2017). Unraveling the presence of multiple plagioclase populations and identification of representative two-dimensional sections using a statistical and numerical approach. American Mineralogist. 102(9), 1894-1905.
Cheng, L., Zeng L., Ren Z., Wang Y., & Luo Z. (2014). Timescale of emplacement of the Panzhihua gabbroic layered intrusion recorded in giant plagioclase at Sichuan Province, SW China. Lithos. 204, 203-219.
Cheng, L., Yang Z-F., Zeng L., Wang Y., & Luo Z. (2014). Giant plagioclase growth during storage of basaltic magma in Emeishan Large Igneous Province, SW China. Contributions to Mineralogy and Petrology. 167(2), 1-20.
Zeng, L., Cheng L., Cheng Q., & Zhang S. (2014). A refinement of Lange's plagioclase–liquid hygrometer/thermometer based on quadratic log-contrast models for experiments with mixtures. Journal of Geochemical Exploration. 141, 89-99.
Cheng, L., Zeng L., Zhang F., Liu M., & Luo Z. (2013). Mantle-derived magmas underplating and its effect on the crust in the Emeishan large igneous province: evidence from geochronological study and numerical simulation of Dalaobao Granites. Acta Petrologica Sinica. 029(10), 3533-3539.
Cheng, L., Liang T., Zeng L., & Luo Z. (2012). Mantle melting column software named Calmantle1.0 and the preliminary discussion on the thickness variation of the Tengchong Cenzoic lithosphere. Earth Science Frontiers. 19(4 (EI)),
Luo, Z., Liu J., Zhao C P., Guo Z., Cheng L., Li X., et al. (2011). Deep fluids and magmatism: The deep processes beneath the Tengchong volcano group. Acta Petrologica Sinica. 27(10),
Yang, Z-F., Cheng L., Luo Z., & Liang T. (2008). Petrogenesis of the Tianheyong basalts in Inner Mongolia: Petrographical and Mineralogical analysis. Acta Petrologica Sinica. 16(2), 90-106.

Earth Observatory of Singapore

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CHENG Lilu

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