Split personality.
Granite boulder split in half near Glen Innes, NSW.
This type of splitting or weathering usually occurs in this area through the ingress of moisture/water into cracks at the top of the boulder. Because it is a very cold area in winter, the water freezes and expands and this cycle repeated over and over during eons eventually opens up the cracks larger and larger, each time to a bit more water and then a bit more expansion as the water freezes. In time, it just goes snap. This type of weathering is not uncommon in granite regions like this.
Split personality.
Granite boulder split in half near Glen Innes, NSW.
This type of splitting or weathering usually occurs in this area through the ingress of moisture/water into cracks at the top of the boulder. Because it is a very cold area in winter, the water freezes and expands and this cycle repeated over and over during eons eventually opens up the cracks larger and larger, each time to a bit more water and then a bit more expansion as the water freezes. In time, it just goes snap. This type of weathering is not uncommon in granite regions like this.