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Resource: used or used up in processes

Calcite

Appears in 7 processs and 16 steps. Everything below is linked: open a process to see it in context.

Top processes

Pedogenic carbonate accumulation and calcrete formation

7 steps

Pyrite oxidation and acid sulfate weathering

2 steps

Aluminium toxicity and liming of acid soils

2 steps

Lime dissolves (CaCO3 uses 2 mol H+ per mol), Ca2+ displaces Al3+ and Al precipitates as Al(OH)3
Surface-applied lime moves down slowly because of its low solubility, so subsoil acidity can persist

Micronutrient availability: pH, redox and plant mobilisation of Fe and Zn

2 steps

Mineral weathering and parent material

1 step

Pedogenic carbonate accumulation and calcrete formation

Phosphate sorption on Fe and Al oxides and phosphorus availability

1 step

Liming to pH 6 to 7 reduces positive surface charge on oxides and modestly raises phosphate availability

Show 1 more processes

Cation exchange, pH and soil solution chemistry

1 step

Aluminium toxicity and liming of acid soils

Often found with

Calcite 10 Water 7 Hydrogen ions 6 Calcium 6 Carbon dioxide 4 Plant roots 4 Lime 4 Soil solution 3 Dust 2 Soil water 2 Bicarbonate 2 Phosphate 2

Known by 719 participants and resources across the map.