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地球学报 2009
CambriantracefossilsandwormlikeimpressionsfromtheTalGroup,Gopi-Chand-KaMahalsection,Mussooriesyncline,LesserHimalayaKeywords: EarlyCambrian,TalGroup,LesserHimalaya,PaleoolenusZone,DrepanuroidesZone Abstract: CambriantracefossilsandwormlikeimpressionsaredescribedhereinfromthethreestratigraphicunitsofTalGroupofrocksexposedalongthetrackfromMaldeotatoDhaulagiriinGopi-Chand-KaMahalsec-tion,Mussooriesyncline.Theupper10mthicksand-stonesuccession(ArenaceousMember)ofDeo-Ka-TibbaFormation(lowerTalGroup)containshighden-sityandlowdiversitySkolithospiperock.TheSko-lithospiperockinsandstonesuccessionofArenaceousMember(Deo-Ka-TibbaFormation)indicatesshallowmarineconditionundersandshiftingenvironmentofdeposition.Higherinthesuccession,incalcareousMember(Deo-Ka-TibbaFormation),Cruzianaichno-faciesoccursinassociationwithMonomorphichnus,PlanolitesandPaleophycus.
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