The samples were collected from the Jhiri marble mining site of
the palaeoproterozoic metasediment of Aravali subgroup, near
Alwar area (27.27 N and 76.18 E) Rajasthan, India. Microalgae
growing on the upper portion of the marble rock were scrapped
and dissolved in autoclaved distilled water (1:10 w/v) and used as
inoculums for isolating microalgae capable of utilizing high Ci
concentrations in the form of sodium bicarbonate (NaHCO3) and
gaseous CO2.