Fig. 3: Dissolved phosphate and phosphate and carbonate mineral deposition at range of water-rock ratios and temperatures.
From: Phosphate availability and implications for life on ocean worlds

a–c Total dissolved phosphate concentration (mol/kg) for averaged CI carbonaceous chondrite composition for different redox states of carbon. Ca and P bearing minerals for water/rock ratio of 100 d–f and 1 g–i.