人类学学报 ›› 1986, Vol. 5 ›› Issue (01): 89-100.

• 人类学学报 • 上一篇    下一篇

禄丰古猿化石产地沉积环境与埋藏学的初步研究

陈万勇   

  • 出版日期:1986-03-15 发布日期:1986-03-15

Preliminary studies of sedimental environment and taphonomy in the hominoid fossil site of Lufeng

Chen Wanyong   

  • Online:1986-03-15 Published:1986-03-15

摘要: 本文根据沉积物成因、古气候和古生物特征,把禄丰古猿化石产地新第三纪地层划分为晚中新世石灰坝组和早上新世庙山坡组。据岩性和岩相特征,可划分出五个不同的沉积阶段,每个阶段代表不同的沉积环境。古猿和其他脊椎动物化石主要埋在石灰坝组(四段)湖泊沼泽化沉积环境,次之为庙山坡组(五段)河流相沉积环境。

关键词: 沉积环境;埋藏学

Abstract: ?Lufeng site is not only famous for its Hominoid fossils but also a very ideal place for the studies of taphonomy. In this paper, attention is paid to the measurements of the fossil distribution and the observation of their burial condition. The sedimental environment, together with the burial law, paleomorphology, paleoclimate, water chemieal properties of the laeustrine sediments and palcoccology, is diseussed. Thereby a lithostratigraphical section of the excavated site, a schematic paleoecology map, a generalized stratigraphic column, a geological section and a rosette diagram showing the distribution of the long bones, direction are drawn. The problem whether the fossils were autoehthonous or allochthonous is diseussed. And the reasons why the fossils were much concentrated and why they could be preserved so well are considered. Shihuiba and Miaoshanpo Formations, upper Miocene and lower pliocene, in Lufeng can be divided into five sedimental environments from bottom to top as below: 1. Intermontane fluvial environment; 2. Diluvial fan and debris flow environment; 3. Shallow lacustrine environment; 4. Shallow lacustrine bay and lacustrine shore-swamp environment ; 5. Fluvial environment (Miaoshanpo Formation) .

Key words: Sedimental environment; Taphonomy