Resetting of the U–Pb Zircon System in CambroOrdovician
Nov 21 2006· To collect a representative zircon population about 1–2 kg of each sample was processed using a disc mill shaking table Frantz magnetic separator and heavy liquids Representative crystals about 100 grains of different morphology and colour were then handpicked from the final mineral separate mounted in 25 mm epoxy discs and polished