Significance of ichnofossils to genetic stratigraphy——Examples from the Cretaceous of Alberta, Canada  

作　　者：S.George Pemberton James A.MacEachern Murray K.Gingras 张建平 

机构地区：[1]Department of Earth and Atmospheric Sciences,University of Alberta,Edmonton,Alberta,Canada,T6G 2E3 [2]Earth Sciences,Simon Fraser University,Burnaby,British Columbia,Canada,V5A 1S6 [3]Department of Earth and Atmospheric Sciences,University of Alberta,Edmonton,Alberta,Canada,T6G 2E3 Department of Geology,China University of Geosciences,Beijing 100083,China Correspondence should be addressed to zhang Jianping

出　　处：《Science China Earth Sciences》2000年第5期541-560,共20页中国科学（地球科学英文版）

摘　　要：Trace fossils represent both sedimentological and paleontological entities, representing a unique blending of potential environmental indicators in the rock record. Trace fossils and trace fossil suites can be employed effectively to aid in the recognition of various discontinuity types and to assist in their genetic interpretation. Ichnology may be employed to resolve surfaces of strati-graphic significance in two main ways: 1) through the identification of discontinuities using substrate-controlled ichnofacies, and 2) through careful analysis of vertical softground (penecontem-poraneous) ichnologic successions (analogous to facies successions). Ichnological analysis is a valuable tool in genetic stratigraphic studies. Integrating the data derived from substrate-controlled ichnofacies with paleoecological data from vertical ichnologic successions greatly enhances the recognition and interpretation of a wide variety of stratigraphic surfaces. When this is coupled with conventional facies analysis and sequence stratigraphy, a powerful approach to the interpretation of the rock record is generated.Trace fossils represent both sedimentological and paleontological entities, representing a unique blending of potential environmental indicators in the rock record. Trace fossils and trace fossil suites can be employed effectively to aid in the recognition of various discontinuity types and to assist in their genetic interpretation. Ichnology may be employed to resolve surfaces of strati-graphic significance in two main ways: 1) through the identification of discontinuities using substrate-controlled ichnofacies, and 2) through careful analysis of vertical softground (penecontem-poraneous) ichnologic successions (analogous to facies successions). Ichnological analysis is a valuable tool in genetic stratigraphic studies. Integrating the data derived from substrate-controlled ichnofacies with paleoecological data from vertical ichnologic successions greatly enhances the recognition and interpretation of a wide variety of stratigraphic surfaces. When this is coupled with conventional facies analysis and

关 键 词：trace fossils Glossifungites ICHNOFACIES GENETIC STRATIGRAPHY sequence boundaries Western CANADA sedimentary Basin Cretaceous. 

分 类 号：P534.53[天文地球—古生物学与地层学]