摘要
坪洲岛位于香港地区东北隅,大鹏湾内靠近深圳市下沙和大鹏一侧,其地理座标为北纬22°32′-33′,东经114°25′-27′。岛上出露一套以灰黑色板状泥岩为主的含化石碎屑岩层。据Williams(1943)的资料,在岛的西北部低潮时出露有约10m厚的砂质页岩和0.6m燧石砂岩,其上为广泛出露的厚达170m的黑色含钙质的粉砂岩和泥岩。由于此岛孤立地位于大鹏湾内,其岩层和邻近地区出露的沉积层之间的对比和相互关系均不可能确切知道。已知大鹏湾水下主要为红色砂、砾岩层,但它们与岛上岩层之间确切的关系也不清楚。到目前为止,确定这个岛上沉积岩层的时代的唯一手段是化石证据。自本世纪二十年代起Brock和Williams等先后采集了一些植物化石,经Seward鉴定,结果如下(Williams,
Summary The geological age of the fossil-bearing beds of Pingzhou (Ping Chau or Peng Chau) Island located at 22°32′—33′N and 114°25′—27′E in Da Peng Bay (Mirs Bay), Hong Kong has been a matter of dispute for about half a century (Williams, 1943; Davis, 1952). The present article deals with a recent collection of fossil plants from Pingzhou. The material, though poor both in species and in specimens, merits description as it throws a new light on the geological age of the fossil-bearing beds. This so far is the first time to describe and ilhtstrate fossil plants from Hong Kong area.
出处
《古生物学报》
CAS
CSCD
北大核心
1990年第4期415-426,513-516,共12页
Acta Palaeontologica Sinica
