What is recorded here

Hen Injian is shown as a cliff on the public map of Gwynedd. The saved point is the map point or the centre of its mapped shape.

Hen Injian is a sea cliff located in Gwynedd, composed primarily of Silurian greywacke and slates, formed around 440–420 million years ago through deep marine sedimentation and subsequent tectonic compression. The cliff is notable for its exposure of ancient volcanic and sedimentary rocks that are part of the Caledonide mountain belt, offering insights into Wales’ complex geological history.

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