This is the Halswell Quarry, we went there on Thursday 14th of March. It was created 15 million years ago and was created from magma (lava). Halswell Quarry was mined 150 years ago.
The miners hung off a rope and hacked at the basalt with a pickaxe. They got more technology and cars as the years passed. As they got deeper they found older rocks. The oldest rock they found was igneous which was 12 million years old, the latest layer, loess, was formed not too long ago and is made from dust particles.
That was not all I learnt at the Halswell Quarry. There were four stages that formed the Banks Peninsula - the main stage was the magma that rose out of the sea that formed Lyttelton and Akaroa Harbour. Then all the small vents from the side of the land formed all the other small things like Mt Herbert. Everything dried up and formed the Banks peninsula. The last stage was when the the rocks from rivers filled the gap between the South Island and Banks Peninsula.
We also learnt from the park ranger Robbie, how the Council decided what to do with all the land of Halswell Quarry.