HRS 2545 Holyhead, South Stack cliffs and intrusion
A micro-gabbro dyke sits in front of the cliffs. BGS: "South Stack Formation - Psammite And Pelite. Metamorphic Bedrock formed approximately 542 to 635 million years ago in the Ediacaran Period. [Pre-Cambrian] Originally sedimentary rocks formed in deep seas. Later altered by low-grade metamorphism" South Stack lighthouse is clearly visible ion the background.
No EXIF information is available
Categories & Keywords
Category:Scenic
Subcategory:Coastlines
Subcategory Detail:
Keywords:anglesey, cliffs, cymru, dykes, geology, intrusions, lighthouses, pre-cambrian, pyroclastics, rocks, south stack, tehra, tuffs, volcanic, wales
