Story: Geology – overview All images & media From page 1 – New Zealand – a geological jigsaw puzzle New Zealand in the Pacific Ocean The New Zealand continent The Alpine Fault Subduction beneath the North Island From page 2 – Rocky foundations Greywacke mountains Rocks offset along the Alpine Fault Geological map of New Zealand Geological time scale From page 3 – New Zealand’s oldest rocks Gondwana Trilobite Rock Greenland Group (1st of 2) Bedding in Greenland Group (2nd of 2) Gneissic rocks Karamea Granite From page 4 – Building a continent Greywacke forming at the edge of Gondwana Torlesse greywacke, Aoraki Mt Cook National Park Murihiku beds (1st of 3) Murihiku sediments (2nd of 3) Fossil tree stump (3rd of 3) Douglas Coombs, geologist From page 5 – Disturbances on the edge of Gondwana New Zealand region 150 million years ago Marlborough schist (1st of 2) Marlborough schist under the microscope (2nd of 2) Schist tors Coastal granite From page 6 – New Zealand breaks away from Gondwana New Zealand adrift Hawks Crag (1st of 2) Hawks Crag Breccia (2nd of 2) Cretaceous–Tertiary boundary Erosion at Poolburn (1st of 2) Weathered rock (2nd of 2) Limestone around Punakaiki (1st of 3) Pancake Rocks (2nd of 3) Sinkholes in limestone (3rd of 3) Limestone under the microscope Pillow lavas From page 7 – New Zealand reborn New Zealand region 10 million years ago Papa cliffs, Hawke's Bay Vertical coal seam (1st of 2) Tilted limestone bluffs at Kohaihai Bluff (2nd of 2) Banks Peninsula – extinct volcanoes Ignimbrite at Cathedral Cove (1st of 2) Ignimbrite at Cathedral Cove (2nd of 2) From page 8 – Quaternary mountains and glaciers Mt Cook and Mt Tasman from the sea Jackson Bay in the ice age Moraine ridges on the Cascade Plateau Shoreline during the last glaciation Glacial erratic at Te Anau Southern lakes From page 9 – Quaternary coasts and rivers Rakaia River flood plain Coastal cliffs near Hāwera Satellite image of the central South Island Loess (1st of 2) John Hardcastle, loess pioneer (2nd of 2) Uplifted terrace, Māhia From page 10 – Quaternary volcanism Ignimbrite cliffs Tongariro volcanoes Mt Eden Volcanic ash band From page 11 – Holocene – the last 10,000 years Sea levels in the last 20,000 years Mt Maunganui Uplift of New Zealand Drowned valleys Moraines at Tasman Glacier
