Precambrian iron formation provides valuable windows onto ancient marine environments, but exactly how these Fe-and Si-rich chemical sedimentary rocks formed have remained a …
Paleoarchean jaspilites are used to track ancient ocean chemistry and photoautotrophy because they contain hematite interpreted to have formed following biological oxidation of …
Host to some of Earth's earliest evidence of life, the fossiliferous lowermost chert-barite sequence (DFc1) in the∼ 3.5 Ga Dresser Formation of the Pilbara Craton, Western Australia …
Sedimentary Fe deposits are both scientifically and economically important. As a major ore mineral of these deposits, siderite is generally assumed to have been formed via diagenetic …