摘要
以北京周口店为例的浅变质岩区地层因受构造作用的改造而与以沉积岩区为代表的地层特征截然不同。传统的描述以沉积岩区地层剖面为代表的各参数含义已不能反映浅变质岩区客观存在的地层特征。笔者认为浅变质岩区的地层单位应使用新术语超堆、堆、亚堆,而且描述地层剖面各参数的含义也应改变。深变质岩区的地层单位术语则启用“杂岩”。
The stratigraphic characteristics of low-grade metamorphic rock terrains, such as Beijing Zhoukoudian region, reformed by the tectonism, are rather different from that represented by the sedimentary terrains. The traditional terminology, describing respective references, at the stratigraphic profile of the sedimentary rock terrains, can not show the stratigraphic characteristics existing in the low-grade metamorphic rock terrains. So we suggest that new stratigraphic terminology such as superpile, pile, subpile, should be used and the meaning of respective referen-ces describing stratigraphic profile should be changed in the low-grade metamorphic rock terrains. And the stratigraphic terminology in the high-grade metamorphic rock terrains should use the term 'complex' .
出处
《地球科学(中国地质大学学报)》
EI
CAS
CSCD
北大核心
1990年第2期137-144,T001,共9页
Earth Science-Journal of China University of Geosciences
关键词
变质岩
地层
单位
杂岩
区域
变质
regional metamorphism, low - grade metamorphism, complex, stratigraphic unit, Beijing Zhoukoudian.