Nanoparticles in groundwater of the Qujia deposit, eastern China: Prospecting significance for deep-seated ore resources

Liu, Xiang; Cao, Jianjin; Dang, Wanqiang; Lin, Zhien; Qiu, Junwei

doi:10.1016/j.oregeorev.2020.103417

Cited by 11 publications

(2 citation statements)

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“…This phenomenon is consistent with the enrichment of more Cu in the metamorphic ore uid of the SEDEX-type Dongshengmiao deposit(Zhong and Li 2016). In Qujia deposit, W with 65.14 average wt% (TableS2) is associated with W-related minerals in drilling samples(Liu et al 2020). In addition, some nearly or NNAPs carrying indicative elements.…”

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confidence: 77%

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Nearly or nanoscale natural amorphous particles in the critical zone and biosphere

Lu¹,

Cao

Hu³

et al. 2022

Preprint

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The advancement of nanotechnology has made more attention on synthetic nanoscale particles, while naturally nanoscale particles are often overlooked, especially nearly or nanoscale natural amorphous particles (nearly or NNAPs). Here, we report nearly or NNAPs obtained from multiple media for discussing their geochemistry environmental implications in eight deposits with different minerals and background areas. Internal nanoscale arrangement, elemental composition, and structure of nearly or NNAPs were characterized via high-resolution transmission electron microscopy. The results show nearly or NNAPs are widespread compounds and have a large number. We established the elemental combination relationship and defined them as a native metal, S–O-, P–O-, and Cl–(O)-bearing as well as oxide nearly or NNAPs. Nearly or NNAPs could as a substance migration form by themselves and using as carriers. With strong geochemical features, nearly or NNAPs can carry high proportion of ore-related metal elements from the concealed ore bodies to the surface, indicating the environmental risks of nearly or NNAPs.

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confidence: 77%

“…Polyethylene bottles were pre-rinsed cleaned with ultrapure water three or more times before water sampling. The water samples were sealed and stored at 23-27°C (Liu et al 2020). The details of the sampling device for collecting ascending gas samples were described in Cao et al 2009.…”

Section: Sampling and Analytical Methodsmentioning

confidence: 99%