Rocks around Australia!

.


external image sunset-cc-timmy-toucan.jpg
Ayers rock (Northern Territory)
Ayers Rock is sandstone and that means it is a sedimentary rock.
which are formed when there was once water there and dead animals carried there by the wind. to start forming the rocks after years of building up the layers.
it was formed when the sea was covering that part of Australia and slowly eroded away the rest of the land.
Ayers rock is a well know rock in Australia and the world
external image gor011-photo_1151738-205x140.JPG

**The Twelve Apostles (Victoria)**
the Twelve Apostles are limestone which means they are Sedimentary rocks
which are formed when there was once water there and dead animals carried there by the wind. to start forming the rocks after years of building up the layers.
they were formed when the water was washing up on them and eroding it away.
there are only 8 left now.
they are also well know around Australia.


external image Wave_rock.jpg

Wave Rock (Western Australia)
Wave Rock in Western Australia is made granite which is an intrusive igneous rock. Wave Rock was formed by subsurface chemical weathering followed by removal of the soft weathered granite by erosion. Wave Rock is 15 metres in hight and 110 metres in length. Intrusive Igneous means it cools slowly under the surface which means it has big crystals.

external image me-the4.jpg
**Mt Gravatt (Queensland)**
The Rock landform feature of Mt Gravatt is the bands of metamorphic quartzite going through multiple parts of the town. Mt Gravatt is located on the southside of brisbane. Quartzite is a metamorphic rock. Quartzite was oraginally the rock Sandstone.
Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression.