Deep carbon through time: Earth's diamond record and its implications for carbon cycling and fluid speciation in the mantle

D. Howell^*, T. Stachel, R. A. Stern, D. G. Pearson, F. Nestola, M. F. Hardman, J. W. Harris, A. L. Jaques, S. B. Shirey, P. Cartigny, K. V. Smit, S. Aulbach, F. E. Brenker, D. E. Jacob, E. Thomassot, M. J. Walter, O. Navon

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