Atmospheres are dynamic over geologic timescales, making large changes in planetary air density possible. For the Earth, geological proxies suggest that air density in the Neoarchean was similar to or lower than today. ...

In significant contrast to other cratonic blocks of India, the Singhbhum cratonic successions record contin-uous depositional record from the Palaeoarchaean to Mesoproterozoic. Although the sedimentary faciescharacteristics ...

Organic-walled microfossils of uncertain origin, classified to an informal group named acritarchs, are most commonly interpreted as the resting cysts of marine eukaryotic phytoplankton. Some acritarchs have recently been ...

The sparse Archean fossil record is based almost entirely on carbonaceous remnants of microorganisms cellularly preserved due to their early post-mortem silicification. Hitherto as an exception, sedimentary carbonate rocks ...

The North Singhbhum Mobile Belt (NSMB) is a 200 km long, curved Proterozoic fold– thrust belt that skirts the northern margin of the Archean Singhbhum Craton of NE India. The Singhbhum Shear Zone (SSZ) developed between ...

Although the similarities between depositional processes and products as well as the analogous controls on basin-filling and evolution appear to have enjoyed great uniformity throughout the sedimentary rock record, a ...

It was recently demonstrated that the extraction of major elements from South African Platinum Group Metals (PGM) tailings can be achieved via thermochemical treatment with ammonium sulphate followed by aqueous dissolution. ...