Summary of results. NTGS laser ablation ICP-MS zircon age constraints of Neoproterozoic Kiana Group sandstones in the northern Sturt Plateau bioregion, south of Katherine, Northern Territory

Abstract

Laser ablation inductively coupled plasma mass spectrometer (LA-ICP-MS) U-Pb zircon dating was conducted on two sandstone samples from formations of the Neoproterozoic Kiana Group of the northern Georgina Basin. The samples were collected from water bores RN041447 and RN041448, south of Katherine in central-west LARRIMAH4 in the central-northern Northern Territory. The water bores were two of nine drilled by the Water Resources Division of the Northern Territory Department of Environment, Parks and Water Security (DEPWS)5 in October 2020, as part of groundwater resource studies of the Sturt Plateau bioregion. Both sandstone samples yielded abundant detrital zircons with multiple age populations.