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Front. Earth Sci. | doi: 10.3389/feart.2019.00051

Elemental uptake by calcite slowly grown from seawater solution: an in-situ study via depth profiling.

  • 1Mississippi State University, United States
  • 2University of Western Australia, Australia
  • 3Lomonosov Moscow State University, Russia
  • 4University of Rochester, United States
  • 5University of Alabama, United States

Crystal growth rate has not been sufficiently explored to understand element partitioning between calcite and seawater solutions. We investigated the uptake of Li, B, Mg, Sr, and Ba by Mg-bearing calcite slowly grown on a calcite cleavage fragment. Experiments were conducted by elevating the alkalinity of an artificial seawater solution. Growth rates were evaluated by addition of lanthanum spike. At the end of each experiment, cleavage fragments were extracted and examined with micro-Raman spectroscopy, scanning electron microscopy (SEM), electron backscattered diffraction (EBSD), and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) using depth profiling technique. Distribution of Li, B, Mg, Sr, and Ba in calcite overgrowth as well as partition coefficients of those elements were evaluated.

Keywords: calcite, Seawater, LA-ICP-MS, partitioning, magnesium,, Trace Elements

Received: 12 Sep 2018; Accepted: 04 Mar 2019.

Edited by:

Alexandra V. Turchyn, University of Cambridge, United Kingdom

Reviewed by:

Shuo Zhang, Saudi Aramco (Saudi Arabia), Saudi Arabia
Zvi Steiner, University of Cambridge, United Kingdom  

Copyright: © 2019 Gabitov, Sadekov, Yapaskurt, Borrelli, Bychkov, Sabourin and Perez-Huerta. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dr. Rinat Gabitov, Mississippi State University, Starkville, United States,