(Written 4th December, 2018. First time published on any of my blogs, but did share this with a couple of people…)
Crust is built in layers. The oldest at the bottom, newest is make of sediment and dust on the top. Originally flat like paper but they crack and fold due to the movements of plates, punctured from within, the magma push its way out to form what we see and live on today.
Normal faults are formed by pulling apart, the reverse is the compressing or pinching and pressing.
Scarps are soft and smooth, crust is crag and cliff. If hard rock and the climate changes slowly, a sharp will form. If soft rock, weather will wear is and smooth it for a subtle and supple gentle rise.
In the middle, in between, stuck between a rock and a hard place. The horde of horst comes up and the grabby grabens go low. A vertical zig zag, like the hot breath and goosebumps. Spencer and St Vincent gulfs in South Australia. Water fills them like canals, and can form them into parallel mountain ranges. Erosion over time cement and crystallise these lines and ravines and wrinkles into even deeper lines.
Transcurrent moves horizontally, bump and grind and slide sideways in either direction. This is a shattering, a fracturing of rock into smaller fragments. Fragments are easier to change and form than the larger pieces which are closer to the whole. Lake Vanessa? The Loch Ness, nearly splits Scotland in two.
Origami is the Japanese art of paper folding, but this is about the geode, we’re crystalline (this is not the timber, nor is it metal. This is the skin we live on and in.)
Collision of continental plates and the extreme pressure from all directions, allows hard rock to become malleable and plasticine; able to buckle and fold, bend without breaking. A shiatsu massage, arches are anticlines, troughs are synclines, and when we fold over one another it becomes the over fold. It folds, it does not flow.
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