ORIGIN AND ORDER OF CYCLIC GROWTH-PATTERNS IN MAT-MINISTROMATOLITE BIOHERMS FROM THE PROTEROZOIC WUMISHAN FORMATION, NORTH CHINA

被引：20

作者：

CAO, RJ

机构：

[1] Laboratory of Paleobioloty and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Academia Sinica, Nanjing City

来源：

PRECAMBRIAN RESEARCH | 1991年 / 52卷 / 1-2期

关键词：

D O I：

10.1016/0301-9268(91)90018-6

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The mat-ministromatolite bioherms from the Proterozoic Wumishan Formation exhibit three orders of cyclic growth patterns. The growth cycle can be interpreted in terms of daily, monthly and seasonal periodicities. Mat-ministromatolite bioherms used as palaeontological clocks are limited to a short (daily and monthly) growth cycle. Based on the study of these stromatolites, it is estimated that there may have been about 40 to 49 palaeo-days per palaeo-month of 1200 Ma age.

引用

页码：167 / 178

页数：12