Replacement by silica (silicification) also requires acidic conditions and an abundance of silica. The coral and algae have been silicified. Replacement by calcite is very rare. The original shell ...
Resources NL (ASX:AAR) has been rewarded with promising assay results from its final 11 drill holes at the Kamperman Deposit within the Feysville Gold Project, around 14 kilometres south of Kalgoorlie ...
in collaboration with Prof Derek Siveter from the University of Oxford investigating the co-occurrence of gigantic trilobites in early Ordovician strata in Morocco systematics of paradoxidids ...
Trenching along the strike of the Bambino Central anomaly has exposed a north-northwest striking zone of limonite-stockwork mineralization within argillic-silicic altered intrusive and metasedimentary ...