___

• Bustillo, M.A. 1998 Meteoric water participation in the genesis of Jurassic cherts in the subbetic of southern Spain — a significant indicator of penecontemporaneous emergence. Elsever Sedimentary Geology, 119, 85-102 p.
• Boggs S. Jr., Principles of Sedimentology and Stratigraphy, Macmillan Publishing Company, New York, USA, 771, 1987.
• Bramlette, M.N., 1946 The Monterey Formation of California: U.S. Geol. Survey, Prof, Paper, 212
• DeMaster DJ (2002) The accumulation and cycling of biogenic silica in the Southern Ocean: revisiting the marine silica budget. Deep Sea Research. Part II (49): 3155-3167.
• Knauth, L.P., 1979. Origin of chert in limestone. Geology 7, 274–277.
• Liu XY, Yan JX (2007) Nodular Chert of the Perm ian Chihsia Formation from South China and Its Geological Implications. Acta Sedimentologica Sinica 25(5): 730-736 Lapidus F., Winstanley I., Collins Dictionary of Geology, Collins, Glasgow, 565, 1990.
• Xiao CT, Ding J, Hu WS et al. (2009) A study on palaeoecology in upwelling phase region of middle Permian in the lower Yangtze area. Acta Sedimentol Sin 27: 319-325.
• Murchey BL, Jones DL (1992) Amid-Permian chert event: Widespread deposition of biogenetic siliceous sediments in coastal, island arc and oceanic basins. Paleogeogr Paleoclimatol Paleoecol 96(1-2): 161-174. https://doi.org/10.1016/0031-0182(92)90066-E
• Nelson DM, Anderson RF, Barber RT, et al. (2002) Vertical budgets for organic carbon and biogenic silica in the Pacific sector of the SouthernOcean, 1996–1998. DeepSea Research II 49 (9-10): 1645-1674.
• DeMaster DJ, Knapp GB, Nittrouer CA (1983) Biological uptake and accumulation of silica on the Amazon continental shelf. Geochim Cosmochim Acta 47: 1713-1723. https://doi.org/10.1016/0016-7037(83)90021-2
• Maliva RG, Knoll AH, Simonson BM (2005) Secular change in the Precambrian silica cycle: insights from chert petrology. Geol Soc Am Bull 117: 835-845. https://doi.org/10.1130/B25555.1
• Perry ECJ, Lefticariu L (2007) Formation and geochemistry of Precambrian cherts. Treatise on Geochem 7: 1-21. https://doi.org/10.1016/B0-08-043751-6/07138-3
• Ragueneau O, Treguer P, Leynaert A, et al. (2000) A review of the Si cycle in the modern ocean: recent progress and missing gaps in the application of biogenic opal as a paleoproductivity proxy. Glob Planet Change 26: 317-365.
• Qu Y, Wang J, Xiao S, et al. (2017) Carbonaceous biosignatures of diverse chemotrophic microbial communities from chert nodules of the Ediacaran Doushantuo Formation. Precambrian Res 290: 184-196.