Sedimentary pyrite formation during early diagenesis is a major process for controlling the oxygen level of the atmosphere and the sulfate concentration in seawater over geologic time. The amount of pyrite that may form in a sediment is limited by the rates of supply of decomposable organic matter...
Sedimentary pyrite formation: An update Sedimentary pyrite formation during early diagenesis is a major process for controlling the oxygen level of the atmosphere and the sulfate concentration in seawater over geologic time. The amount of pyrite that may form in a sediment is ... RA Berner - 《...
Application of sedimentary pyrite in paleo-environment: a case study of Meihe Formation 星级: 8 页 The formation of low-temperature sedimentary pyrite and its relationship with biologically-induced processes 星级: 14 页 Sulfides in Sandy Sediments New Insights on the Reactions Responsible for S...
Sedimentary pyrite formation: An update Petrology of Sedimentary Rocks Petrology of Sedimentary Rocks Depositional sedimentary environments Sedimentary organic matter preservation: an assessment and speculative synthesis Sedimentary organic matter preservation: an assessment and speculative synthesis—a comment ...
R.A. Berner Sedimentary pyrite formation: an update Geochim Cosmochim Acta, 48 (4) (1984), pp. 605-615 View PDFView articleView in ScopusGoogle Scholar [5] D.J. Burdige The biogeochemistry of manganese and iron reduction in marine sediments Earth Sci Rev, 35 (3) (1993), pp. 249-284...
(the effect of SMTZ formation and dynamics on pyrite sulfur isotopes is discussed below). The down-core δ34Spyrvalues correlate with TOC concentration, forming an array with a much steeper slope (Fig.3bgreen dotted line, slope 4.5‰/% TOC,R2 = 0.82) than the δ34Spyr-TOC array ...
Sedimentary manganese (Mn) mineralization requires a switch between anoxic and oxic water column conditions, which is commonly explained by the “bathtub ring” model and more recently interpreted by the emerging “episodic ventilation” model. To date, however, it remains unclear regarding how to di...
The formation of low-temperature sedimentary pyrite and its relationship with biologically induced processes. Geol. Ore Depos. 56, 395e408.Cavalazzi, B., Agangi, A., Barbieri, R., Franchi, F., Gasparotto, G., 2014. The formation of low-temperature sedimentary pyrite and its relationship ...
Pyrite formation in the sediments within the Arabian Sea OMZ was limited by the availability of reactive iron oxides. This was caused by the low oxygen concentrations of the OMZ, which resulted in the reduction of iron oxides in the water column or at the sediment鈥搘ater interface. However,...
pyritepaleo-environmentindicesMeiheFormationThe indices related to sedimentary pyrite are widely used in paleo-environmental studies; however its application principles and flaws have not been presented in detail so far,therefore it is necessary to review the controlling factors of them. In this study ...