Two benthic microbial assemblages from the Měnín-1 borehole (Early Cambrian, Czech Republic)

Bulletin of geosciences

Vavrdová M¹ 

关键词: Early Cambrian;    acritarchs;    biostratigraphy;    Southern Moravia;   

DOI  :  

来源: Czech Geological Survey

【 摘 要 】

Diverse,wellpreservedbenthicmicrobialassemblagesaredescribedfromtwostratigraphiclevelsoftheMěnín-1boreholefromsouthernMoravia.Abundantcyanobacterialsheets,acritarchs,prasinophytes,andacid-resistanttissues,togetherwiththeichnologicalandpetrologicalevidence,indicateashallowmarineenvironmentwithoccasionalterrestrialinfluence.Asheltereddepositionalenvironmentenabledthepreservationofalgalcoenobiaandintracellularstructures.ApalynologicalassessmentcontributedtothemoreaccuratebiostratigraphyoftheEarlyCambriansedimentsinsouthernMoraviaandconfirmedthelargeextentofthebasalCambriandeposits.SomemicrofossilssuggestthepossiblepresenceofundisturbedmarinesedimentsofEdiacaranage.ThetectonicpositionoftheBrunovistulicuminpre-VariscanEuropeisdiscussed.

【 授权许可】

Unknown