Gwna Melange
Gwna Melange

The West side of Trwyn Maen Melyn shows huge Quartzite Clasts.
The Melange formed in large debris-flows at a plate margin
being subducted under North Wales
-------------------------------
The Gwna Group are a chaotic collection of sedimentary and igneous rocks some 610 million years old.
Since deposition the group as a whole has been subject to low grade metamorphism
producing rocks of many colours.

Ref: NW 236

Date: 10/10/2021

Location: SH 1363 2549

Gwna Melange

The West side of Trwyn Maen Melyn shows huge Quartzite Clasts.
The Melange formed in large debris-flows at a plate margin
being subducted under North Wales
-------------------------------
The Gwna Group are a chaotic collection of sedimentary and igneous rocks some 610 million years old.
Since deposition the group as a whole has been subject to low grade metamorphism
producing rocks of many colours.

Ref: NW 236

Date: 10/10/2021

Location: SH 1363 2549