RECOGNITION OF HIGH-RESOLUTION PALYNOLOGICAL CYCLES IN THE DOGGER FROM BURGUNDY

被引：0
|
作者：
HUAULT, V [1 ]
RAUSCHER, R [1 ]
LAURIN, B [1 ]
机构：
[1] UNIV STRASBOURG 1,INST GEOL,F-67084 STRASBOURG,FRANCE
来源：
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II | 1994年 / 319卷 / 07期
关键词：
PALYNOLOGY; CYCLES; DOGGER; BURGUNDY; FRANCE;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
More than 400 Jurassic samples (Aalenian to Oxfordian), from 34 outcrops and drill holes in Burgundy, have been palynologically analysed. This study indicates the occurrence of cycles characterized by alternations between sapropelic and humic palynofacies directly related on the one hand to alternations between dinocysts or spores and pollen and on the other to acritarchs. Such alternations have probably been observed at different scales from second or third order sequences to the thinnest parasequences (4th to 6th order). Two outcrops and one drill hole have been chosen to illustrate the usefulness of such alternations. Alternations in second and third order sequences are useful for correlation from a distance whereas alternations in parasequences indicate a palynological cyclicity of very high resolution.
引用
收藏
页码：819 / 824
页数：6
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