Tectonic setting sedimentary basins

Bhatia, M.R. Crook, K.A.W. 1986. Trace element characteristics of graywackes and tectonic setting discrimination of sedimentary basins. Contributions to Mineralogy and Petrology, 92, 181-193. 

Spalletti, L.A., Merodio, J.C., Matheos, S.D. 2008. Sedimentary petrology and geochemistry of siliciclastic rocks from the upper Jurassic Tordillo Formation (Neuque n Basin, western Argentina) Implications for provenance and tectonic setting. Journal of South American Earth Sciences, 25, 440-463. 

The input parameters for the model include the present-day sedimentary cross section, estimates of the amplitude and rate of erosion, the lithological composition and petrophysical characteristics of rocks, the structure of the lithosphere (basement) and its rock parameters, paleotemperature markers (vitrinite reflectance), paleoclimate, sea paleodepths, present-day surface heat flow, depth-temperature profiles, and information on the paleotectonics and the present-day tectonic setting of the basin. The evolution of the Oued el-Mya Basin is used to demonstrate the model. Table 6.1 presents the basin s main stages of evolution, which include sedimentation, hiatus, and erosion. 

Plate tectonic processes impart a distinctive geochemical signature to sediments in two separate ways. Firstly, different tectonic environments have distinctive provenance characteristics and, secondly, they are characterized by distinctive sedimentary processes. Sedimentary basins may be assigned to the following tectonic settings (Bhatia and Crook, 1986) ... 

The abrupt changes in depositional environments, styles and tectonic setting of Middle and Late Proterozoic rocks and their associated uranium deposits are significant evidence of extensive changes in supracrustal processes. Calc-alkaline volcanic and ophiolitic oceanic crustal suites are lacking in strata of this age. " Rock sequences are dominated by shallow marine to fluvial arenaceous clastic and carbonate sedimentary strata, and subaerial tholeiitic basalt and related shallow intrusions, all deposited in passively subsiding, rift-controlled basins. Oro-... 

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