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《Chinese Geology》 2002-02
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Some important aspects in the study of Archean stratigraphy

SHEN Qi-han (Institute of Geology,Chinese Academy of Geological Sciences,Beijing100037,China)  
It is much more complex and difficult to study Archean stratigraphy than Phanerozoic stratigra-phy.In studying Archean stratigraphy,we should make an integrated study of petrology,stratigraphy,structural geology and geological events,and,on that basis,use new techniques,especially those of geochronology.Furthermore,the following aspects should be emphasized:1.make clear whether there are any complex isoclinal folds in nominal"monoclinic strata";2.determine correctly the types of rock and their attributes;3.identify polyphase deformational overprints and how to correlate them with regional metamorphism;4.understand the problems and pitfalls in geochronologic study;5.clarify the nomenclature of the special units of rocks;6.distinguish correctly the metavolcanic or sedimentary sequence and the pos-sible structural contacts between the different units.
【CateGory Index】: P534.2
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