what features are formed by chemical weathering
How does chemical weathering form a cave? Weak acids seep into the ground until they reach a zone soaked with water. As the ground water become more acidic, it dissolves calcite and other minerals in the rock.
Why does chemical weathering form gaps in limestone? By dissolving the walls of the existing tension-joints in the limestone. The characteristic grid formation of sculpted limestone blocks separated by deep, narrow gullies is c â¦ alled Limestone Pavement; the blocks are the Clints, the gaps that mark out the joints are the Grykes.