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Neoproterozoic glaciations and oxygenation event (NOE). The global-scale external forcing
required to switch the natural convective system to its present day configuration is suggested
to have been associated with multiple Neoproterozoic glaciation events and the global cooling
that accompanied them which would have resulted in lowering of surface ocean water salinity.
Oxygenation of paleo oceans were also studies using the geochemical proxies collected from
the ancient sedimentary rock samples. Field observations and sedimentary rock samples were
collected from the Paleoproterozoic Cuddapah Basin, India for details geochemical analysis.
The Palaeoproterozoic Vempalle Formation of the Cuddapah Basin, India, significantly adds
to our understanding of the evolution of Precambrian marine carbonate systems and the redox
state of the Earth’s early oceans. Geochemical proxies imply that Cuddapah Basin seawater
was anoxic and ferruginous but not euxinic. Geochemical analyses also indicate that the sea
water was Eu-enriched that probably resulted from continental rifting around 1.9–2.0 Ga. This
probable ocean chemistry is in contrast with the anoxic, ferruginous and extremely high
Mg/Ca “dolomite oceans” that prevailed during Proterozoic time.
8. Budget released and Expenditure(Rs. in Lakhs):

Year 1 Year 2 Year 3

Released Expenditure Released Expenditure Released Expenditure
2.440 2.280 3.760 3.410 3.000 2.840

9. Percentage of Scientific Targets Met:
85.000
10. Percentage of Financial Targets Met:

93.000

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