Two samples of ultramafic lava flows from the Archean, showing spinifex texture.
QUEEN MARY FALLS IS IN MAIN RANGE NATIONAL PARK 100K SOUTH WEST OF BRISBANE QUEENSLAND AU.
THE DAGGS FALLS IS A PLUNGE WATERFALL ON SPRING CREEK, 100K SOUTH WEST OF BRISBANE QUEENSLAND AU.
A view from the top of Grábrók to the east.
South Africa's Archean ultramafic lavas.
Climbing with life cable and iron steps, vertically and horizontally around the wall.
Some of the oldest chert in the world.
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