(1989): Diastathermal (extensional) metamorphism at very low grades and possible high grade analogues. Earth Planet. Sci. Lett. 92, 81-88.Robinson, D., Bevins, R.E., 1989. Diastathermal (extensional) metamorphism at very low grades and possible high grade analogues. Earth Planet. Sci. ...
Whole rock samples from exposed seams (Durham Low Main, Northumberland Low Main, Top Plessey, Plessey, Bottom Plessey, Top Busty and Bottom Busty) were analysed by inductively coupled plasma-mass spectrometry (ICP-MS) for determination of selenium (Se) and iron (Fe). Sulphur (S) and total ...
and 2.5 billion years ago, and large-scale BIF mineralization began to gradually decline about 1.85 billion years ago [2]. Since the mineralization period of BIFs was very early, BIFs were reformed via tectonism, metamorphism and magmatism after mineralization; thus, the iron orebody locations, ...