Middle Cambrian phosphatic and calcareous depositional environments, the Undilla region of the Georgina Basin, Australia
A sedimentological study has been conducted on the phosphorites that occur within the predominantly calcareous rocks in the northeastern parts of the Georgina Basin, Australia. A variety of synsedimentary phosphatic nodules, pavements and profiles have been recognised and are used to determine the physico-chemical conditions under which phosphate was fixed within the sediments. The presence of similar surfaces, or similar ages, in Europe and Asia suggests that the processes of phosphogenesis...[Show more]
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