Figure 3

Figure 3.

Phanerozoic estimates of rock volumes and decarbonation fluxes. All errors are 1 standard deviation (error bars in B and shaded volumes in C and D). (A) Cumulative volume estimates for all rock types. Rates of deposition (in units of volume/time) can be gleaned by the negative slope of the lines. (B) Volume fractions of intrusions and aureoles. (C) Metamorphic decarbonation fluxes, including the Sierra Nevada batholith (SNB)-specific flux. (D) Atmospheric pCO₂ estimates from the GEOCARB model from 570 to 420 Ma (Royer et al., 2004) and from measurements 420 Ma–present (Foster et al., 2017).