The Distribution and Origin of Carbonate Cements in Deep-Buried Sandstones in the Central Junggar Basin, Northwest China

Figure 6

Regional abundance of carbonate cements versus depth in the Jurassic Formation. Text data from 125 core samples show that carbonate is abundant from below 5800 m and increases with depth down to about 6100 m burial depth. The contents of calcite have little changes with the depth. However, ankerite has a sharp interface of 5850 m burial depth and the content increases with the depth.