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The Geology of Hong Kong (Interactive On-line)
Shan Tei Tong Rhyodacite - Kct

Shan Tei Tong Rhyodacite - Kct

Stratigraphy: Cretaceous dykes intruding the Chi Ma Wan and South Lamma plutons.

Distribution: The Shan Tei Tong Rhyodacite dykes occur mostly in a zone extending from the Chi Ma Wan Peninsula, across Lamma Island to southern parts of Hong Kong.

Lithology: Feldsparphyric rhyodacite to porphyritic granite dykes.

Feldsparphyric rhyodacite dyke

(Feldsparphyric rhyodacite dyke (Shan Tei Tong Rhyodacite), Mount Stenhouse, Lamma Island)