BGS-15. Unravelling an allochthonous, subaqueously deposited volcanic–epiclastic to subaerial andesitic lava assemblage in Hong Kong: age, stratigraphy and provenance studies of the Middle Jurassic Tuen Mun Formation R. J. Sewell K. W. F. So D. L. K. Tang A. Carter 10.6084/m9.figshare.4829236.v1 https://geolsoc.figshare.com/articles/journal_contribution/BGS-15_Unravelling_an_allochthonous_subaqueously_deposited_volcanic_epiclastic_to_subaerial_andesitic_lava_assemblage_in_Hong_Kong_age_stratigraphy_and_provenance_studies_of_the_Middle_Jurassic_Tuen_Mun_Formation/4829236 BGS-15 drillhole record 2017-04-07 13:28:08 Jurassic stratigraphy provenance studies subaqueously Mun drillhole Formation Hong Kong allochthonou Tuen BGS -15. Unravelling subaerial andesitic lava assemblage Geology