The petrography, mineralogy and geochemistry of a paleocene lignite from southern Saskatchewan, Canada

Beaton, A.P.; Goodarzi, Fariborz; Potter, J.

doi:10.1016/0166-5162(91)90007-6

Cited by 65 publications

(36 citation statements)

References 17 publications

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“…1d) for the Donglin coals. The relative HREY enrichment in coals results from its stronger organic affinity to coal than LREY (Beaton et al, 1991;Chen et al, 2014;Dai et al, 2012d;Eskenazy, 1987Eskenazy, , 2009Yossifova, 2014). Of particular note are the roof rock sample DL-4-0 and coal samples DL-4-2 and DL-4-11, which display a positive Eu anomaly ( Fig.…”

Section: Rey Characteristic Of Donglin Coalsmentioning

confidence: 89%

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Mineralogy and geochemistry of Late Permian coals from the Donglin Coal Mine in the Nantong coalfield in Chongqing, southwestern China

Chen

Yao

et al. 2015

International Journal of Coal Geology

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Section: Rey Characteristic Of Donglin Coalsmentioning

confidence: 89%

“…Eskenazy et al (1994) presented some additional restrictions for the geochemical usage of B. The groundwater (Beaton et al, 1991), acid waters (Dai et al, 2015c), terrigenous input (Dai et al, 2015d); volcanic source (Querol et al, 1997), and igneous intrusion might alter the characteristics of B in coals. As seen from Fig.…”

Section: Depositional Environmentmentioning

confidence: 98%

Mineralogy and geochemistry of Late Permian coals from the Donglin Coal Mine in the Nantong coalfield in Chongqing, southwestern China

Chen

Yao

et al. 2015

International Journal of Coal Geology

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“…However, our results yield that studied elements are not in close association with TOC-TOT/C and TOT/S. In this study, interrelations between the inorganic elements are noticeable and inorganic affinity was suggested to play an important role in element enrichment (Beaton et al, 1991).…”

Section: Element Enrichmentsmentioning

confidence: 83%

Geochemical characteristics of major and trace elements in Sahinali Coals, Aydin, Turkey

Özçelik

Pehlivanli

Sari

et al. 2016

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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In this study, geochemical behavior of elements is investigated in 25 coal samples collected at 10 locations of Şahinli coaliferous units at southeast of Aydın, Turkey. In all the samples, X-ray powder diffraction and inductively coupled plasma mass spectrometry analyses were performed and element and mineral compositions were determined. Total organic carbon (TOC) values of coals are between 14.6 and 37.7 wt% with average of 28.5 wt%. Samples are composed of quartz, calcite, feldspar, dolomite, mica, gypsum, and salt minerals which are accompanied by illite-, kaolinite-, and smectitetype clay minerals.

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“…Reported values for Ti concentration are either whole seam averages (Beaton et al 1991;Querol et al 1997;Martinez et al 2001;Kortenski & Sotirov 2002;Papanicolaou et al 2005;Orheim et al 2007;O'Keefe et al 2011), or averages for entire basins calculated from the USGS Coal Quality Database (Bragg et al 1998) or World Coal Quality Inventory (Tewalt et al 2010).…”

Section: Estimation Of Ti Concentration In a Coalmentioning

confidence: 99%

Use of carbon accumulation rates to estimate the duration of coal seams and the influence of atmospheric dust deposition on coal composition

Large

Marshall

2014

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Time contained within coal seams is most commonly estimated using a volumetric approach that fails to take into account processes of carbon accumulation and loss during peat formation and coalification. A more appropriate approach for estimating the time contained within a coal seam is to use Holocene long-term carbon accumulation rates, accounting for carbon loss during coalification. Using this approach the thickness of coal corresponding to 10 kyr of carbon accumulation is calculated for coals of all ranks and latitudinal settings. To test the validity of this approach, latitudinal patterns of Holocene dust deposition are used in conjunction with estimated rates of carbon accumulation to calculate the concentration of titanium in coal. The result is a statistically significant correlation that is optimized when latitudinal variation in carbon accumulation rate is considered. Overall, the use of carbon produces far greater accountability of time within coal-bearing stratigraphic sequences and is not influenced by the presence of hiatal surfaces within the coal. Estimated coal seam duration increases considerably, often removing the need to infer substantial intra-seam hiatuses. On the basis of the results, a re-evaluation of coal and coal-bearing stratigraphic sequences is recommended.

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The petrography, mineralogy and geochemistry of a paleocene lignite from southern Saskatchewan, Canada

Cited by 65 publications

References 17 publications

Mineralogy and geochemistry of Late Permian coals from the Donglin Coal Mine in the Nantong coalfield in Chongqing, southwestern China

Mineralogy and geochemistry of Late Permian coals from the Donglin Coal Mine in the Nantong coalfield in Chongqing, southwestern China

Geochemical characteristics of major and trace elements in Sahinali Coals, Aydin, Turkey

Use of carbon accumulation rates to estimate the duration of coal seams and the influence of atmospheric dust deposition on coal composition

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