05: Unveiling Blackhall’s Permian Reef: Boulder Conglomerate and Crinkly Beds
Blackhall’s Permian reef: Boulder conglomerate (high wave energy) and crinkly beds (calm lagoon) reveal ancient environmental changes.
04: Exploring Blackhall’s Permian Limestone Formations and Stratigraphic Complexity
Explore Blackhall’s Permian limestone formations: Ford, Roker, Seaham. Faulting complicates stratigraphy. Unique features in cliffs.
03: Permian Limestones to Quaternary Ice Ages
Blackhall shows rocks from Permian (290-250 mya) and Quaternary (30,000-19,500 years ago) periods, including ice age sediments.
02: Stromatolite
Blackhall Beach: Discover stromatolites, ancient reef structures, formed by microbial activity in warm, shallow waters during the Permian period.
01: Blackhall Rocks to Castle Eden Dene Introduction
Explore Blackhall Rocks: Permian Magnesian Limestone reveals Durham’s ancient past (255-250 million years ago). Quaternary age Denes shaped by ice ages.