New Data and Evidence on the Mineralogy and Geochemistry of Wulantuga High-Ge Coal Deposit of Shengli Coalfield, Inner Mongolia, China

The mode of occurrence and origin of highly-enriched trace elements, especially Ge, in Wulantuga high-Ge coal deposit have been widely reported. In this study, coal samples and several coalified trunks embedded within the roof strata are collected, which provides a good opportunity to further confirm if Ge is mainly associated with organic matter. Minerals in coal samples are mainly quartz, kaolinite, montmorillonite, pyrite, and gypsum, along with trace albite, barite, chlorite, and Fe-oxide, while those in coalified trunk samples include melanterite, pyrite, and gypsum, with traces of chlorite and magnesiocopiapite. Germanium, As, W, Sb, Hg, Be, and Cs are enriched in coal samples, and these elements are also enriched in the coalified trunks and roof glutenite. The elevated contents of Ge, As, W, Sb, and Hg were almost exclusively derived from the influx of hydrothermal fluids as evidenced by the presence of pyrite veins and chamosite as well as enhanced elemental associations of Ge-W and As-Sb-Hg in the studied lignite samples. The coalified trunks in the study area should be taken into consideration due to the high contents of hazardous elements that cause potential environmental impacts during mining waste disposal and land reclamation.

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Variations of organic matter transformation in response to hydrothermal fluids: Example from the Indiana part of the Illinois Basin

International Journal of Coal Geology ◽

10.1016/j.coal.2020.103410 ◽

2020 ◽

Vol 219 ◽

pp. 103410 ◽

Cited By ~ 1

Author(s):

Juan Teng ◽

Maria Mastalerz ◽

Bei Liu ◽

Timothy Gognat ◽

Ernest Hauser ◽

...

Keyword(s):

Organic Matter ◽

Hydrothermal Fluids ◽

Illinois Basin ◽

Organic Matter Transformation

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Trace elements in the Goze Delchev coal deposit, Bulgaria

International Journal of Coal Geology ◽

10.1016/j.coal.2007.03.002 ◽

2007 ◽

Vol 72 (3-4) ◽

pp. 257-267 ◽

Cited By ~ 17

Author(s):

G.M. Eskenazy ◽

Y.S. Stefanova

Keyword(s):

Trace Elements ◽

Coal Deposit

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Mineral matter and trace elements in ashes from a high-arsenic lignite fired power plant in Inner Mongolia, China

International Journal of Coal Geology ◽

10.1016/j.coal.2018.08.003 ◽

2018 ◽

Vol 196 ◽

pp. 317-334 ◽

Cited By ~ 5

Author(s):

Bengen Gong ◽

Qirun Yong ◽

Zhuo Xiong ◽

Chong Tian ◽

Jianping Yang ◽

...

Keyword(s):

Trace Elements ◽

Power Plant ◽

Inner Mongolia ◽

Mineral Matter ◽

High Arsenic

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Chemical characterization of fine particular matter in Changzhou, China and source apportionment with offline aerosol mass spectrometry

10.5194/acp-2016-883 ◽

2016 ◽

Cited By ~ 2

Author(s):

Zhaolian Ye ◽

Jiashu Liu ◽

Aijun Gu ◽

Feifei Feng ◽

Yuhai Liu ◽

...

Keyword(s):

Trace Elements ◽

Organic Matter ◽

Organic Carbon ◽

Source Apportionment ◽

Major Ions ◽

Chemical Properties ◽

Chemical Characterization ◽

Water Soluble ◽

Traffic Emissions ◽

Aerosol Mass

Abstract. Knowledge on aerosol chemistry in densely populated regions is critical for reduction of air pollution, while such studies haven't been conducted in Changzhou, an important manufacturing base and polluted city in the Yangtze River Delta (YRD), China. This work, for the first time, performed a thorough chemical characterization on the fine particular matter (PM2.5) samples, collected during July 2015 to April 2016 across four seasons in Changzhou city. A suite of analytical techniques were employed to characterize organic carbon / elemental carbon (OC / EC), water-soluble organic carbon (WSOC), water-soluble inorganic ions (WSIIs), trace elements, and polycyclic aromatic hydrocarbons (PAHs) in PM2.5; in particular, an Aerodyne soot particle aerosol mass spectrometer (SP-AMS) was deployed to probe the chemical properties of water-soluble organic aerosols (WSOA). The average PM2.5 concentrations were found to be 108.3 μg m−3, and all identified species were able to reconstruct ~ 80 % of the PM2.5 mass. The WSIIs occupied about half of the PM2.5 mass (~ 52.1 %), with SO42−, NO3− and NH4+ as the major ions. On average, nitrate concentrations dominated over sulfate (mass ratio of 1.21), indicating influences from traffic emissions. OC and EC correlated well with each other and the highest OC / EC ratio (5.16) occurred in winter, suggesting complex OC sources likely including both secondarily formed and primarily emitted OA. Concentrations of eight trace elements (Mn, Zn, Al, B, Cr, Cu, Fe, Pb) can contribute up to 6.0 % of PM2.5 during winter. PAHs concentrations were also high in winter (140.25 ng m−3), which were predominated by median/high molecular weight PAHs with 5- and 6-rings. The organic matter including both water-soluble and water-insoluble species occupied ~ 20 % PM2.5 mass. SP-AMS determined that the WSOA had an average atomic oxygen-to-carbon (O / C), hydrogen-to-carbon (H / C), nitrogen-to-carbon (N / C) and organic matter-to-organic carbon (OM / OC) ratios of 0.36, 1.54, 0.11, and 1.74, respectively. Source apportionment of WSOA further identified two secondary OA (SOA) factors (a less oxidized and a more oxidized OA) and two primary OA (POA) factors (a nitrogen enriched hydrocarbon-like traffic OA and a cooking-related OA). On average, the POA contribution overweighed SOA (55 % vs. 45 %), indicating the important role of local anthropogenic emissions to the aerosol pollution in Changzhou. Our measurement also shows the abundance of organic nitrogen species in WSOA, and the source analyses suggest these species likely associated with traffic emissions, which warrants more investigations on PM samples from other locations.

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Acid solubility and affinities of trace elements in the high-Ge coals from Wulantuga (Inner Mongolia) and Lincang (Yunnan Province), China

International Journal of Coal Geology ◽

10.1016/j.coal.2017.04.011 ◽

2017 ◽

Vol 178 ◽

pp. 39-55 ◽

Cited By ~ 25

Author(s):

Qiang Wei ◽

Susan M. Rimmer

Keyword(s):

Trace Elements ◽

Inner Mongolia ◽

Yunnan Province ◽

Acid Solubility

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Organic matter decomposition and calcium precipitation during As release in the Hetao Basin, Inner Mongolia

Arsenic in the Environment - Proceedings - One Century of the Discovery of Arsenicosis in Latin America (1914-2014) As2014 ◽

10.1201/b16767-41 ◽

2014 ◽

pp. 106-107

Author(s):

Y Jia ◽

H Guo

Keyword(s):

Organic Matter ◽

Inner Mongolia ◽

Organic Matter Decomposition ◽

Calcium Precipitation

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Trace metal distribution in pristine permafrost-affected soils of the Lena River Delta and its Hinterland, Northern Siberia, Russia

Biogeosciences Discussions ◽

10.5194/bgd-10-2205-2013 ◽

2013 ◽

Vol 10 (2) ◽

pp. 2205-2244 ◽

Cited By ~ 1

Author(s):

I. Antcibor ◽

S. Zubrzycki ◽

A. Eschenbach ◽

L. Kutzbach ◽

D. Bol'shiyanov ◽

...

Keyword(s):

Trace Elements ◽

Organic Matter ◽

Trace Metal ◽

Climatic Changes ◽

River Delta ◽

Metal Distribution ◽

Background Concentrations ◽

Lena River ◽

Trace Metal Distribution ◽

Lena River Delta

Abstract. Soils are an important compartment of ecosystems and have the ability to immobilize chemicals preventing their movement to other environment compartments. Predicted climatic changes together with other anthropogenic influences on Arctic terrestrial environments may affect biogeochemical processes enhancing leaching and migration of trace elements in permafrost-affected soils. This is especially important since the Arctic ecosystems are considered to be very sensitive to climatic changes as well as to chemical contamination. This study characterizes background levels of trace metals in permafrost-affected soils of the Lena River Delta and its hinterland in northern Siberia (73.5° N–69.5° N) representing a remote region far from evident anthropogenic trace metal sources. Investigations on total element contents of iron (Fe), arsenic (As), manganese (Mn), zinc (Zn), nickel (Ni), copper (Cu), lead (Pb), cadmium (Cd), cobalt (Co) and mercury (Hg) in different soil types developed in different geological parent materials have been carried out. The highest concentrations of the majority of the measured elements were observed in soils belonging to ice-rich permafrost sediments formed during the Pleistocene (ice-complex) in the Lena River Delta region. Correlation analyses of trace metal concentrations and soil chemical and physical properties at a Holocene estuarine terrace and two modern floodplain levels in the southern-central Lena River Delta (Samoylov Island) showed that the main factors controlling the trace metal distribution in these soils are organic matter content, soil texture and contents of iron and manganese-oxides. Principal Component Analysis (PCA) revealed that soil oxides play a significant role in trace metal distribution in both top and bottom horizons. Occurrence of organic matter contributes to Cd binding in top soils and Cu binding in bottom horizons. Observed ranges of the background concentrations of the majority of trace elements were similar to background levels reported for other pristine arctic areas and did not exceed mean global background concentrations examined for the continental crust as well as for the world's soils.

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Spatial Variation of Soil Organic Matter in Gully Bed with the Seabuckthorn Flexible Dam: A Case Study of EG1 in Zhun-Ge-Er County of Inner Mongolia, China

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1073-1076.619 ◽

2014 ◽

Vol 1073-1076 ◽

pp. 619-627

Author(s):

Fang She Yang ◽

Shu Zhen Su ◽

Juan Juan Zhang ◽

Ci Fen Bi

Keyword(s):

Organic Matter ◽

Soil Organic Matter ◽

Spatial Autocorrelation ◽

Spatial Variation ◽

Inner Mongolia ◽

Small Scale ◽

Obvious Effect ◽

Small Catchment ◽

Variation Characteristics ◽

Random Variation

In this paper, based on geostatistics and GIS techniques, spatial variation characteristics of soil organic matter (acronym: SOM) on a small scale were analyzed and discussed in east-one-branch gully (EG1) bed with the seabuckthorn flexible dam and the contrastive gully bed (which is non-vegetated any vegetation) located in zhun-ge-er county, Erdos, inner Mongolia, which belongs to the typical Pisha Sandstone area. The results show that the seabuckthorn can significantly increase SOM in the small catchment gully bed in the Pisha sandstone area, and the mean SOM content in gully bed with the seabuckthorn flexible dam is approximate 1.75 times that in the contrastive gully. Apparent spatial variation characteristics of SOM were found in the gully with the seabuckthorn flexible dam and the contrastive gully bed, moreover, the medium spatial autocorrelation of SOM was detected in gully bed with the seabuckthorn flexible dam, and the spatial variation of SOM was together led to by the structural and random variation at 1-6.5 m range, and of which the random variation accounts for 40%. Additional, the spatial autocorrelation of SOM in the contrastive gully bed is higher, the spatial variation of SOM was dominantly brought about by the structural variation at 1-4.5 m range, and of which the random variation accounts for 37%. Furthermore, the fractal dimension values reveal that dependence of SOM of the gully bed with the seabuckthorn flexible dam on spatial is weaker than that of the contrastive gully bed. It is judged that the seabuckthorn has an obvious effect on spatial distribution patterns and heterogeneity of SOM on a small scale.

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