Gallery 43 - Isle of Portland to Lulworth Cove
Bats Head - 2
Looking down on the inaccessible beach at Bats Head
After descending from White Nothe a strenuous roller coaster route awaits.
Chalk a White Coccolithic Limestone is the youngest of the Jurassic Coasts Rocks.
Formed at the end of the Cretaceous period in a tropical sea by a Green Algae - Coccolithophores - discarding their tiny protective shields of calcium carbonate.
Vast numbers of the shields (coccoliths) collected on the sea , compacted over time to form the White Chalk.
Ref: 8577
Date: 19/11/2020
Location: SY 7784 8083