繁體中文
《香港地質導賞書》第 3–4 章記載：香港中生代（侏羅紀至白堊紀）有三個沉積岩單位——早侏羅紀嘅赤門海峽組、早侏羅紀晚期至中侏羅紀早期嘅大澳組，以及晚侏羅紀至白堊紀嘅荔枝莊組（書內摘要作晚侏羅紀至白堊紀，早年研究曾歸入早白堊紀）。大澳組嘅年代由植物化石確立：1996 年土木工程拓展署、香港理工大學同中國科學院南京地質古生物研究所嘅地質調查隊喺大澳狗伸地海濱嘅粉砂岩同細砂岩發現大量植物化石，以蘇鐵、銀杏、松柏類同蕨類為主，可同華南「湘西植物群」對比。導賞書另以第 8 至 16 章逐個介紹香港嘅火山岩。同樣係官方一手文獻嘅里程碑，唔屬志錄抽取層；時間標籤照來源只寫紀名。
English
Chapters 3–4 of the Hong Kong Geology Guide Book record three Mesozoic (Jurassic–Cretaceous) sedimentary units in Hong Kong: the Early Jurassic Tolo Channel Formation, the late Early to early Middle Jurassic Tai O Formation, and the Late Jurassic–Cretaceous Lai Chi Chong Formation (the book’s summary gives Late Jurassic–Cretaceous, while earlier work assigned it to the Early Cretaceous). The age of the Tai O Formation rests on plant fossils: in 1996 a survey team from CEDD, the Hong Kong Polytechnic University and the Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, recovered abundant plant fossils from siltstone and fine sandstone on the shore at Kau San Tei, Tai O, dominated by cycads, ginkgo, conifers and ferns, comparable with the “Xiangxi Flora” of South China. The guide book covers Hong Kong’s volcanic rocks separately in chapters 8–16. This is again an official primary-source milestone outside the extracted archive layer; the time label reproduces the source and names the period only.
出處：《香港地質導賞書》第 3–4 章（大澳組、荔枝莊組；正文約印刷頁 21–34）同第 8–16 章（香港火山岩）。Provenance: Hong Kong Geology Guide Book, chapters 3–4 (Tai O Formation, Lai Chi Chong Formation; roughly printed pp. 21–34) and chapters 8–16 (Hong Kong’s volcanic rocks).