@article{c320e8b663374ef993de8d57fa740f90,
title = "Nickel uptake by cypress pine (Callitris glaucophylla) in the miandetta area, australia: Implications for use in biogeochemical exploration",
abstract = "The uptake of Ni and other elements by Callitris glaucophylla (white cypress pine), from weathered ultramafic rocks under varying depths of transported regolith cover, is examined at two sites in the Miandetta area, New South Wales, Australia. Results show that C. glaucophylla can accu-mulate elevated Ni concentrations in the needles (leaves or phyllodes) from underlying Ni-enriched regolith up to two orders of magnitude above the normal micronutrient levels required for the spe-cies. Such uptake levels occur in areas with high total Ni in the soil and regolith despite the relatively low mobility of the Ni due to its presence in a low availability form. This highlights the importance of biotic processes in extracting Ni from soil. The needles of C. glaucophylla could provide an effec-tive and convenient sampling medium for reconnaissance biogeochemical exploration for Ni mineralisation and anomalies where transported regolith is less than ~3 m thick. The study has also demonstrated the potential for in situ analysis of Ni and other elements in the needles by portable XRF.",
keywords = "Biogeochemistry, Cobar region, In situ and transported reg-olith, Mineral exploration, PXRF",
author = "Kenneth McQueen and Augustine Alorbi and Joseph Schifano and David Cohen",
note = "Funding Information: Funding: The sampling and biogeochemical analysis reported in this study were supported by funding from the Australian Government{\textquoteright}s Cooperative Research Centre Program, within the CRC for Landscape, Environment and Mineral Exploration and subsequently the MinEx CRC. J.S. is supported by a scholarship from the MinEx CRC and a UNSW RTS scholarship. Funding Information: Acknowledgments: The work has been supported by the Mineral Exploration Cooperative Research Centre whose activities are funded by the Australian Government{\textquoteright}s Cooperative Research Centre Program. Jervois Mining Limited provided access to their lease areas at Miandetta (Site 1) and Gilgai (Site 2) as well as access to their soil sampling and drill hole data. Anthony Jannick of Jervois Mining is particularly thanked for his assistance. The former and current landowners at Mi-andetta facilitated access to their properties. The article has been improved by the helpful comments and suggestions of three anonymous reviewers and the guest editor. Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2021",
month = aug,
doi = "10.3390/min11080808",
language = "English",
volume = "11",
pages = "1--14",
journal = "Minerals",
issn = "2075-163X",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "8",
}