[PDF] Origin of Carbonate Sedimentary Rocks by Noel P. James
: Over millions of years, physical and chemical changes like compaction and cementation turn soft sediment into solid rock. ScienceDirect.com Step 1: The "Carbonate Factory" Phase
Carbonate accumulation occurs within localized "carbonate factories"—marine zones where chemical conditions and biological productivity optimize carbonate precipitation. These factories are highly sensitive to environmental parameters, requiring warm, clear, shallow, and well-lit waters free from significant siliciclastic influx.