Spatial variations in lead isotopes, Tasman Element, eastern Australia

Huston, DL; Champion, D.C.; Morrison, Gregg W.; Mass, Roland; Thorne, J; Carr, Graham R.; Beams, S.; Bottrill, R. S.; Chang, Z-S.; Dhnaram, Courteney; Downe, P.M.; Forster, David B.; Gemmell, J. Bruce; Lisitsin, Vladimir; McNeill, Andrew W.; Vicary, M.

doi:10.11636/record.2017.009

Cited by 7 publications

(4 citation statements)

References 26 publications

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“…They investigate multiple gold deposits and occurrences within the poorly exposed and only partially mapped Paleoproterozoic Alta Floresta district in the Amazonas Craton, Brazil, using a combination of both published and new structural data, chlorite and white mica geothermobarometry, and alteration assemblages. Based on an extensive analysis, they refine the previously published deposit classifications and confirm that there are at least two, probably three, distinct styles and ages of gold mineralization: an older 'orogenic' type mineralization succeeded and, in places, (2022) with data from Farquhar and Haynes (1986), Godwin et al (1988), Thorpe (2008), Mortensen et al (2010), Bailey (2013), Huston et al (2017). Note that global data are still sparse and further research is needed into the significance of lead isotopes with respect to Phanerozoic OGDs: therefore, the differences between the data from the various suggested sub-types needs to be taken with caution.…”

Section: Large-scale Processes Models and Multi-variate Datasetssupporting

confidence: 66%

“…2. Lead isotope analyses from different Phanerozoic OGDs, compiled and modified from Mortensen et al(2022) with data fromFarquhar and Haynes (1986),Godwin et al (1988),Thorpe (2008),Mortensen et al (2010),Bailey (2013),Huston et al (2017). Note that global data are still sparse and further research is needed into the significance of lead isotopes with respect to Phanerozoic OGDs: therefore, the differences between the data from the various suggested sub-types needs to be taken with caution.…”

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confidence: 99%

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An introduction to Recent Advances in Understanding Gold Deposits: from Orogeny to Alluvium: the importance of multi-method approaches and developing a characterization

Torvela

Chapman

Lambert-Smith

2022

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Gold occurs in many settings but the dynamic nature of Earth's crust means overlapping and overprinting deposit styles are common. Characterisation of mineralisation from an early stage becomes important particularly where the mineralisation is complex, in order to maximise exploration and project development success, and mining productivity. Various techniques are used at different stages of a project to characterise gold deposits. This Special Publication “Recent Advances in Understanding Gold Deposits: From Orogeny to Alluvium” offers a cross-section of some specific techniques to investigate a variety of gold deposit types. In this Introduction, we briefly compare the most common gold deposit types; summarise the techniques used to investigate them; and discuss some of the most important outstanding questions regarding understanding gold deposits. This is followed by a summary of each paper in this Special Publication. Whilst the 15 papers in this book can only showcase some of the many approaches available, they do highlight both the breadth of the available techniques and their utility in deposit characterisation. Several papers include suggestions for avenues for fruitful further research, including a paper suggesting a new approach to classifying orogenic gold deposits, and a paper describing archaeological applications of natural gold analyses.

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Section: Large-scale Processes Models and Multi-variate Datasetssupporting

confidence: 66%

mentioning

confidence: 99%

An introduction to Recent Advances in Understanding Gold Deposits: from Orogeny to Alluvium: the importance of multi-method approaches and developing a characterization

Torvela

Chapman

Lambert-Smith

2022

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“…A full interpretation of the new Pb isotope maps will be provided once all data is available (anticipated mid-2020). For guides on interpreting the current preliminary images the reader is referred to Huston et al (2016Huston et al ( , 2017.…”

Section: Discussionmentioning

confidence: 99%

“…These maps showed similarities to the preexisting Nd model age maps (Huston et al, 2014), so a second campaign of isotopic mapping was initiated. This resulted in the production of Pb-based isotopic maps initially of southeastern Australia (Huston et al, 2016) and then for the entire Tasman Element (Huston et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Preliminary national-scale lead isotope maps of Australia

Huston¹,

Champion²,

Ware³

et al. 2019

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Applications of Lead Isotopes to Ore Geology, Metallogenesis and Exploration

Huston

Champion

2023

Mineral Resource Reviews

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Although lead isotopes are most commonly used to date geological events, including mineralizing events, they also can provide information on many aspects of metallogeny and can be directly used in mineral exploration. Lead isotope data are generally reported as ratios of radiogenic isotopes normalized to the non-radiogenic isotope 204Pb (e.g. 206Pb/204Pb, 207Pb/204Pb and 208Pb/204Pb). These ratios can be used in exploration to characterize the style of mineralization, metal (i.e. Pb) source and as vectors to ore. When combined with lead isotope evolution models, the data can be used to indicate the age and tectonic environment of mineralization. The raw ratios and evolution models enable calculation of derived parameters such as μ (238U/204Pb), κ (232Th/238U) and ω (232Th/204Pb), which provide more information about tectonic setting and can be contoured to identify crustal boundaries and metallogenic provinces. In some cases, tectonic boundaries, mapped using gradients in μ and other derived parameters, are fundamental controls on the distribution of certain deposit types in space and time. Moreover, crustal character, as determined by lead and other radiogenic isotopes (e.g. Nd) can be an indicator of province fertility for many deposit types. The development of cost effective analytical techniques and the assembly of large geo-located datasets for lead and other isotope data has enabled significant advances in understanding the genesis and localization of many deposit type, particularly when the isotopic data are integrated with other independent datasets such as potential field, magnetotelluric, passive seismic and geochemical data.

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Spatial variations in lead isotopes, Tasman Element, eastern Australia

Abstract: Geoscience Australia has tried to make the information in this product as accurate as possible. However, it does not guarantee that the information is totally accurate or complete. Therefore, you should not solely rely on this information when making a commercial decision.

Cited by 7 publications

References 26 publications

An introduction to Recent Advances in Understanding Gold Deposits: from Orogeny to Alluvium: the importance of multi-method approaches and developing a characterization

An introduction to Recent Advances in Understanding Gold Deposits: from Orogeny to Alluvium: the importance of multi-method approaches and developing a characterization

Preliminary national-scale lead isotope maps of Australia

Applications of Lead Isotopes to Ore Geology, Metallogenesis and Exploration

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