Stratigraphy: Jurassic volcanic rocks
with an age of approximately 164.7 ± 0.3 million years before
present.
Distribution: The Shing Mun Formation
crops out mainly in the vicinity of Tai Mo Shan and on the north
side of Tolo Harbour. Smaller outcrops are also present on Tsing
Yi, along the southern side of Lantau Island, and in the New Territories
around Sha Tau Kok and Plover Cove.
Lithology: Lapilli lithic-bearing
coarse ash tuff and tuff breccia with intercalated siltstone.
(Block breccia of the Shek Lung Kung Member (Shing Mun Formation)