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The barite deposit in the Niutitang Formation of Lower Cambrian,in Tianzhu County,Guizhou Province,western China,is a super- large barite deposit with about 2·109tons of reserves.Mineral,petrological and geochemical studies reveal that this barite deposit belongs to a hydrothermal sedimentary deposit.Microscopic observations indicate that a lot of algae,sponge spicules and tube-type fos- sils are well-preserved in this barite section,and moreover,those fossils share most characteristics of the deep-sea hydrothermal venting community in the modern Pacific.We suggest that the hydrothermal venting community was thriving in hydrothermal vent in early Cam- brian,and it is of great significance for elucidating the geological background of the‘‘Cambrian explosion’’.China Press.All rights reserved.
The barite deposit in the Niutitang Formation of Lower Cambrian, in Tianzhu County, Guizhou Province, western China, is a super-large barium deposit with about 2 · 109tons of reserves. Mineral, petrological and geochemical studies reveal that this barite deposit belongs to a hydrothermal sedimentary deposits. Microscopiccopic observations indicate that a lot of algae, sponge spicules and tube-type fos-sils are well-preserved in this barite section, and moreover, those fossils share most characteristics of the deep-sea hydrothermal venting community in the modern Pacific.We suggest that the hydrothermal venting community was thriving in hydrothermal vent in early Cam- brian, and it is of great significance for elucidating the geological background of the “Cambambian explosion.” China Press. All rights reserved.