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Dr. Zixiao Guo

Geology, Isotope Geochemistry, Biogeochemical Cycle, Biogeology and geochemistry

Honorary Research Associate     

Zixiao Guo

 

Appointment:

Room:

Honorary Research Associate      

Courses Taught:

Non-Teaching Appointment
 

Research Group(s):

 
 

Email Address:

Telephone Number:

zixiao.guo@ucl.ac.uk 

Research Summary

My research focuses on:

  1. the biosignatures and fossil records from early Earth and
  2. the biogeochemical cycles of C, S, Fe and Cu in solid Earth, in order to understand the co-evolution of biosphere and the Earth system.

I am currently working on the origin of graphite in Eoarchean banded iron formations.

Publications (10):

Research Gate

  1. Guo, Z., Tian, H.-C., Liu, Y., Peng, X., Qin, G., & Lv, Y. (2022) Copper isotopic fractionation during seafloor alteration: Insights from altered basalts in the Mariana and Yap trenches. Journal of Geophysical Research: Solid Earth, 127, e2021JB023597.
  2. Tian X., Yang M., Guo Z., Chang C., Li J., Guo Z., Wang R., Li Q., Zou X. (2022) Plastic mulch film induced soil microplastic enrichment and its impact on wind-blown sand and dust. Science of the Total Environment, 813, 152490.
  3. Nan J., King H. E., Delen G., Meirer F., Weckhuysen B. M., Guo Z., Peng X.* Plümper O.* (2021) The nanogeochemistry of abiotic carbonaceous matter in serpentinites from the Yap Trench, western Pacific Ocean. Geology, 49, 330–334.
  4. Peng X., Guo Z.*, Du M., Czaja A.D., Papineau D., Chen S., Xu H., Li J., Ta K., Bai S., Dasgupta S. (2020) Past endolithic life in metamorphic ocean crust. Geochemical Perspectives Letters, 14, 14–19.
  5. Du M., Peng X., Seyfried Jr W. E., Ta K., Guo Z., Chen S., Chou I.M., Li J., Xu H. (2019) Fluid discharge linked to bending of the incoming plate at the Mariana subduction zone. Geochemical Perspectives Letters, 11, 1-5.
  6. Xu H., Peng X., Bai S., Ta K., Yang S., Liu S., Jang H. B., Guo Z. (2019) Precipitation of calcium carbonate mineral induced by viral lysis of cyanobacteria: evidence from laboratory experiments. Biogeosciences, 16, 949–960.
  7. Guo Z., Peng X.*, Czaja A.D., Chen S., Ta K. (2018) Cellular taphonomy of well-preserved Gaoyuzhuang microfossils: A window into the preservation of ancient cyanobacteria. Precambrian Research, 304: 88–98.
  8. Peng X., Chen M., Chen S., Dasgupta S., Xu H., Ta K., Du M., Li J., Guo Z., Bai S. (2018) Microplastics contaminate the deepest part of the world's ocean. Geochemical Perspectives Letters, 9, 1-5.
  9. Peng X., Guo Z.*, Chen S., Sun Z., Xu H., Ta K., Zhang J., Zhang L., Li J., Du M. (2017) Formation of carbonate pipes in the northern Okinawa Trough linked to strong sulfate exhaustion and iron supply. Geochim. Cosmochim. Acta, 15: 1–13.
  10. Peng X., Guo Z.*, House C.H., Chen S., Ta K. (2016) SIMS and NanoSIMS analyses of well-preserved microfossils imply oxygen-producing photosynthesis in the Mesoproterozoic anoxic ocean. Chemical Geology, 441: 24–34.