Calcium isotope compositions as a means to trace carbonate recycling

Shichun Huang; Stein B Jacobsen

doi:10.1093/nsr/nwab173

Calcium isotope compositions as a means to trace carbonate recycling

Natl Sci Rev. 2021 Sep 11;9(6):nwab173. doi: 10.1093/nsr/nwab173. eCollection 2022 Jun.

Authors

Shichun Huang¹, Stein B Jacobsen²

Affiliations

¹ Department of Geoscience, University of Nevada, Las Vegas, USA.
² Department of Earth and Planetary Sciences, Harvard University, USA.

Abstract

Marine carbonate, an important CO2 reservoir, is continuously sent to the Earth's deep interior at subduction zones, forming an essential part of the global carbon cycle. The pros and cons of using calcium isotope compositions to trace marine carbonates recycled into the mantle are discussed in this Perspective.