The K/Ar chronology of glauconite pellets is a long-used method for directly dating marine sedimentary deposits. Many papers have explored the processes that form and factors lead to greater reliability in ages. Although ages are generally agreement with other measures stratigraphic age, there examples occurrences too old young. This paper seeks build on accumulated knowledge glauconite, using ...

Petroleum hydrocarbon contamination disrupts ecological and agricultural soil functions. For their restoration, bioremediation agents of various natures are used (nonorganic or organic fertilizers, bacterial preparations, adsorbing agents) featuring different remediation mechanisms (adsorption biostimulation petroleum decomposition). The objective this research is the assessment condition hydro...

Crude kaolinite-glauconite clay was active with hydrochloric acid for various times under variable microwave irradiation power. The influence of activation parameters (power and/or time) on the structural and textural properties treated samples has been studied. modifications were evaluated by XRD, FTIR, XRF, SEM, BET, grain size zettametry. XRD IR results show that reveals only weak changes cr...

Glaucony is a significant green marine facies in the northwestern passive margin of Guadalquivir Basin (Spain), where glauconite formed authigenically on sediment-starved continental shelf, with fecal pellets and benthic foraminiferal tests being main glauconitized substrates. Results from study using XRD, TGA-DSC, SEM-EDS, EPMA have revealed that remarkably heterogeneous mineral composition ch...

The late Paleocene–early Eocene warm greenhouse conditions, characterized by elevated pCO2 levels in the atmosphere and a dramatic increase sea surface temperature, prompted abundant authigenic glauconite formation within shallow marine sediments worldwide lowering net sedimentation rate, increasing organic productivity expanding oxygen minimum zones to oceans. early marginal Cambay Shale Forma...

The Neogene-Paleogene glauconite sands are investigated for radionuclide sorption in the framework of Belgian radioactive waste disposal program. This study was set up to measure adsorption radiostrontium (85Sr) on and fractions identify factors explaining variable among different formations. Batch 85Sr experiments were with 45 (125–250 μm) a background solution 1 mM CaCl2.H2O 0.5 KCl. distribu...