Close up of the weathering sandstone
This photo was taken near Hawkesbury River. The Sydney Basin rests on ancient layer of sandstone, hence amazing rock formations and sculptures of the nature.
waiting for the high tide:)
Bright Orange colour of the sandstone
West Head Beach
green eyed cute rocky creature
gentle creatures ( they are so many large boulders of different colours there) each of them is eroding differently. Some of them look quite alive) The one on the right looks like a smiling dolphin to me.
Tessellated pavements are formed in sandstone over millions of years. Sandstone, siltstone and claystone are buried deep (under pressure) within the earth's crust. Through weathering and erosion these rock layers are removed and pressure on the rocks is released. This causes sandstone to expand resulting in cracking of the surface. the centre of each block has rusty red circular patterns known as Liesegand rings. These rings are formed by iron carbonate which slowly oxidize to form iron oxide.
Iron oxide (rusty coloured rock) it is much harder than surrounding sandstone
curious grooves occurring naturally on sandstone surface
natural sandstone erosion
Bush is re-growing after the bushfire
Weathered sandstone cliffs on the northern bank of the river.
on a bush walking track leading from Warrah Trig to Hawkesbury River cliffs