RHYTHMIC BEDDING PRODUCED IN CRETACEOUS PELAGIC CARBONATE ENVIRONMENTS: SENSITIVE RECORDERS OF CLIMATIC CYCLES

被引:50
作者
Bottjer, David J. [1 ]
Arthur, Michael A. [5 ]
Dean, Walter E. [2 ]
Hattin, Donald E. [3 ]
Savrda, Charles E. [4 ]
机构
[1] Univ So Calif, Dept Geol Sci, Los Angeles, CA 90089 USA
[2] US Geol Survey, Denver, CO 80225 USA
[3] Indiana Univ, Dept Geol, Bloomington, IN 47405 USA
[4] Auburn Univ, Dept Geol, Auburn, AL 36849 USA
[5] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA
来源
PALEOCEANOGRAPHY | 1986年 / 1卷 / 04期
基金
美国国家科学基金会;
关键词
D O I
10.1029/PA001i004p00467
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Various types of rhythmic bedding are prominent features of Cretaceous pelagic carbonates. These bedding rhythms are the primary depositional result of variations in carbonate productivity, terrigenous dilution, redox conditions and/or the energy of bottom currents. Each bedding cycle type is different in its expression in the stratigraphic record but ultimately was caused by rhythmic climatic variations related to variations in receipt of solar insolation as the result of the earth's orbital characteristics, the so-called Milankovitch cycles. Stratigraphic sequences may contain a single bedding cycle type or a composite of several types. Although sediment type and sedimentary structures were influenced by variations in local climatic, oceanographic, tectonic, and diagenetic parameters, pelagic carbonate environments during the Cretaceous were particularly sensitive recorders of orbitally induced changes in worldwide climate.
引用
收藏
页码:467 / 481
页数:15
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