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The Geology of Hong Kong (Interactive On-line)
Long Harbour Formation - Krl

Long Harbour Formation - Krl

Stratigraphy: Cretaceous volcanic rocks with an age of approximately 142.8 ± 0.2 to 142.7 ± 0.2 million years before present.

Distribution: The Long Harbour Formation crops out in Long Harbour and Sai Kung in the northeastern New Territories.

Lithology: Coarse ash crystal tuff with distinctive pink alkali feldspar crystals.

Lapilli-bearing coarse ash crystal tuff

(Lapilli-bearing coarse ash crystal tuff of the Long Harbour Formation, Long Harbour, eastern New Territories)