Trace Fossils and Ichnofabrics in the Heshanggou Formation ofLacustrine Deposits, Jiyuan Area, Henan Province
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2009-08-10
-
Key words:
- Jiyuan Basin /
- Triassic /
- Lacustrine sedimentary environment /
- trace fossil /
- Heshanggou Formation
Abstract: The trace fossils in the Heshanggou Formation consist of at least 9 ichnogenus and 10 ichnospecies, namely, Arenicolites isp., Beaconites coronus, Cylindricum isp., Palaeophycus heberti, Palaeophycus tubularis, Planolites isp., Psilonichnus isp., Scoyenia gracilis, Skolithos linearis and Taenidium barretti. Based on the distribution of trace fossils and analysis of palaeoenvironment, three ichnofabrics are recognized: 1) Scoyenia ichnofabric, which represents shore lacustrine depositional environment under arid climate; 2) PlanolitesTaenidium ichnofabric, which formed in a shallow lacustrine sedimentary environment, and the substrate did not expose to the surface; 3) Psilonichnus ichnofabric, which generated in a lacustrine delta sedimentary environment and shows the hydrodynamic becoming more and more strongly in sequence.
Citation: | HU Bin. Trace Fossils and Ichnofabrics in the Heshanggou Formation ofLacustrine Deposits, Jiyuan Area, Henan Province[J]. Acta Sedimentologica Sinica, 2009, 27(4): 573-582. |