Yeliu Joints

Taiwan geologically is locate at the northern edge of the Philippines plate that is colliding with the Asian plate. This causes pressure between the two plates and the results of the pressure come to the surface at Yeliu. The pressure makes the rocks fracture and they fracture at right angles.

And this fracture extends in both directions.

And can produce a checkerboard effect. Because there thin layers of different materials the squares look like they are colored.

There are designs made my the erosion of thin layers.

From the mountain in the park, we can see the joints on a bigger scale along the seacoast.

How this contributes to the Yeliu structures was shown in a informational plaque .

The depression cause by the joint gives the seawater a start at the erosion process.