Bremore Head, North Dublin

Disgrifiad

Bremore Head is located 2.5km north of the town of Balbriggan. The Geological Survey Ireland conducted unmanned aerial vehicle (UAV) and scanning total station (STS) surveys over a 0.3 km² site to investigate the impacts of climate change on the 16th Century harbour of Newhaven and the nearby eroding cliff face.

The site contains several passage tombs (SMR DU002-001001-) forming the Bremore cemetery and is located on the north shore of the peninsula. The site also contains the remains of a medieval coastal settlement (SMR DU002-005—-)associated with the harbour.

The volcanic bedrock of the area formed approximately 460 million years ago during the closure of the Iapetus Ocean. The sediment that sits above this, and forms the eroding cliff-face near the old harbour is a sub-glacial till (commonly called boulder clay), laid down under an ice sheet approximately 20 thousand years ago. The harbour in the SE of the study area is defined by a 62m dry stone constructed pier, which extends from shoreline in a NE direction, running roughly parallel to the headland.

This survey was completed over three flights using the microdrones md4-3000 at mid tide on 19/02/2019

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