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Article
The abundance, distribution, and enrichment mechanism of harmful trace elements in coals from Guizhou, Southwestern China
Coal seams can enrich a variety of harmful trace elements under specific geological conditions. The spatial distribution of harmful trace elements in coal is extremely uneven, and the distribution characterist...
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Article
Open AccessDistribution characteristics of potentially toxic metal(loid)s in the soil and in tea plant (Camellia sinensis)
Potentially toxic metal(loid) assessment of tea and tea garden soil is a vital guarantee of tea safety and is very necessary. This study analyzed the distribution of seven potentially toxic metal(loid)s in dif...
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Article
Open AccessSynergistic effect between biochar and sulfidized nano-sized zero-valent iron enhanced cadmium immobilization in a contaminated paddy soil
Biochar-based sulfidized nano-sized zero-valent iron (SNZVI/BC) can effectively immobilize cadmium (Cd) in contaminated paddy soils. However, the synergistic effects between biochar and SNZVI on Cd immobilizat...
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Article
Open AccessDiagnostic value and role of serum miR-15a-5p in patients with schizophrenia
More and more studies have confirmed that the heredity plays an important role in mental disorders, especially microRNA. The objective of this research was to explore the level of miR-15a-5p in patients with s...
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Article
Reliability analysis of random vibration for a CCGA624 component based on an improved Miner’s rule
In this paper, out-of-plane random vibration reliability of a ceramic column grid array (CCGA) package was tested in accordance with the ECSS-Q-70-08C standard. Microstructure observations revealed that there ...
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Article
Use of Microscopic Characteristics and Multielemental Fingerprinting Analysis to Trace Three Different Cultivation Modes of Medicinal and Edible Dendrobium officinale in China
The traceability of different cultivation modes is critical for ensuring the commercial viability of high-value Dendrobium officinale. In this study, by means of polarizing microscopy, SEM–EDX, ICP-MS and ICP-AES...
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Article
Distribution and Interactive Effects of Heavy Metals in Soil-Maize (Zea Mays L.) System in the Mercury Mining Area, Southwestern China
The concentrations and interactive effects of beneficial elements (i.e., Se, Mo, and Zn) and heavy metals (As, Cd, Hg, and Pb) of maize (Zea mays L.) grown on lime soil and/or soil with mercury tailing were inves...
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Article
Distribution and dispersion of heavy metals in the rock–soil–moss system of the black shale areas in the southeast of Guizhou Province, China
Black shales are easily exposed due to human activities such as mining, road construction, and shale gas development, which results in several environmental issues including heavy metal (HM) pollution, soil er...
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Article
A new palaeo-weathering and leaching model for the formation of the ultra-large high-grade Kaiyang phosphate deposit, Guizhou, China
The processes that formed the ultra-large and high-grade Kaiyang phosphate deposit, which is located in Guizhou Province, China, remain unclear. Here, we present the results of a petrological and mineralogical...
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Article
The Role of Soil Mineral Multi-elements in Improving the Geographical Origin Discrimination of Tea (Camellia sinensis)
The combination of mineral multi-elements with chemometrics can effectively trace the geographical origin of tea (Camellia sinensis). However, the role of soil mineral multi-elements in discriminating the origin ...
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Article
A prediction model of coal structure based on logging parameters in Liupanshui Coalfield, Guizhou, China
The distribution of coal structure plays an important role in controlling the optimization of favorable areas for coal mining and coalbed methane development and the evaluation of reservoirs. For further clari...
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Article
Geochemical Characteristics of Heavy Metals in Soil and Blueberries of the Core Majiang Blueberry Production Area
By using field survey, sampling, and indoor analysis, we analyzed the geochemical characteristics of heavy metals in the blueberries and soil of the core blueberry production area of Majiang in Guizhou, China....
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Article
Geographical origin discrimination of pepper (Capsicum annuum L.) based on multi-elemental concentrations combined with chemometrics
The concentrations of twenty-four elements in twenty-five peppers from three cultivated regions in Guizhou Province (China) were analyzed. The chemometric data processing, including one-way analysis of varianc...
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Article
Mineralogy, sulfur isotopes and infrared microthermometric study of the Leishan-Rongjiang antimony ore field, SW China
The Leishan-Rongjiang antimony ore field (LAOF) is in a unique geotectonic location in the uplift between the Youjiang and Xiangzhong basins. This paper focuses on two representative deposits in the LAOF: the ...
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Article
Geochemical characteristics of the giant Nibao Carlin-type gold deposit (Guizhou, China) and their geological implications
A large gold orebody controlled by Fault F1 was newly discovered in the giant Nibao Carlin-type gold deposit from southwestern Guizhou, China. Ore or rock samples were collected and studied to reveal the relat...
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Article
Enrichment regularities for iodine concentration in phosphorite of Doushantuo Formation of Late Ediacaran in Guizhou Province, SW China
Iodine was relatively enriched in the sedimentary phosphorite that formed during the Doushantuo period of Late Ediacaran, South China, especially in the Central of Guizhou Province, Southwest China. The resour...
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Article
Research on carbon and oxygen isotopes in phosphorus-bearing rock series of the Late Neoproteroic-Early Cambrian Taozichong Formation in Qingzhen City, Guizhou Province, Southwest China
In the study of the phosphate-bearing stratum at the bottom of the Cambrian system, the authors found that there occurred carbon isotope negative anomalies in the Taozichong section phosphate-bearing stratum i...
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Article
Distribution and controlling factors of selenium in weathered soil in Kaiyang County, Southwest China
Selenium is one of the life-related elements. Survey reveals that selenium enrichment in the studied strata from Kaiyang County is considered to be closely related to the following factors: regional black shal...
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Article
Occurrence modes and cleaning potential of sulfur and some trace elements in a high-sulfur coal from Pu’an coalfield, SW Guizhou, China
In this research, a float-sink test was applied to a Late Permian high-sulfur coal collected from Pu’an coalfield, Southwest in Guizhou, China. To investigate the occurrence modes and the mobility of various t...
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Article
Trace element and REE geochemistry of the Zhewang gold deposit, southeastern Guizhou Province, China
The quartz vein-type gold deposits are widely hosted by the Neoproterozoic (Xiajiang Group) epimetamorphic clastic rock series in southeastern Guizhou Province, China. The Zhewang gold deposit studied in this ...
