摘要
松辽盆地叶肢介化石极为丰富,保存完好,在国内独占鳌头,在世界上也是无与伦比的。已在300多口井1000多块样品中见到叶肢介化石,它们在纵向上形成一个完整的生物发育旋回,并且与盆地的发生、发展、萎缩的全过程相吻合。叶肢介化石群演化迅速,分带性强,具明显的地方性色彩。在平面上分布与所在的沉积相带密切相关,滨湖浅水相叶肢介化石最为丰富,其次是三角洲前缘相和三角洲分流平原相,山前平原淤积相和泛滥平原相较少,深—较深湖相偶见,洪积相尚未发现叶肢介化石。
<ABSTRACT> The fossil conchostrace in Song Liao Basin, are abundant, and
characterized by perfect preservation. This is seldom seen both in China and
abroad. The fossil conchostraca have been found in more than 1000 samples
taking from more than 300 wells. They are well-eveloped into an integrated
biological cycle vertically, and coincided with the development stages such as
the emerging, flourishing and shrinking of Basin. The biocommunity of fossil
conchostraca is characterized by fast cvolution, strong zonation and localized
feature. The fossil conchostraca are closely related to sedimentary facies-belt
horizontally, also they are very rich the lakeshore-shallow water facies, and
then the delta front and distributary plain facies. However, They are not rich
in the piedmont plain and flood plain facies, but seldow seen in the deep-
deeper lake facies and have not been found in the diluvial facies.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
1989年第4期15-21,共7页
Petroleum Geology & Oilfield Development in Daqing
关键词
叶肢介目
化石
松辽盆地
地理分布
: cxtinct animals and plants, fossil, Song Liao Basin, sedimentaryfacies
