Maceral Association in Coal-bearing Formation of Mae Than Coal Mine in Lampang, Thailand - Implication for Depositional Environment

The Mae Than Basin in Lampang Province contains low-ranked coal reserves of northern Thailand. Coal seams and ball clays were mined in the southern part of the basin. This study focuses on the coal petrography of coal samples collected from the upper coal seam in the Mae Than Coal Mine. Both the org...

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Autores principales: Thunyapat Sattraburut, Benjavun Ratanasthien
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Publicado: Mahidol University 2021
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spelling oai:doaj.org-article:9a7b40c51b1448ba823ce1d8b4a747482021-12-03T06:55:52ZMaceral Association in Coal-bearing Formation of Mae Than Coal Mine in Lampang, Thailand - Implication for Depositional Environment10.32526/ennrj/20/2021001661686-54562408-2384https://doaj.org/article/9a7b40c51b1448ba823ce1d8b4a747482021-11-01T00:00:00Zhttps://ph02.tci-thaijo.org/index.php/ennrj/article/view/245652/166487https://doaj.org/toc/1686-5456https://doaj.org/toc/2408-2384The Mae Than Basin in Lampang Province contains low-ranked coal reserves of northern Thailand. Coal seams and ball clays were mined in the southern part of the basin. This study focuses on the coal petrography of coal samples collected from the upper coal seam in the Mae Than Coal Mine. Both the organic and inorganic constituents provide information on the nature and characteristics of the coal, reflecting the physical and chemical behaviors of coal. Petrological analysis reveals that the Mae Than coals contain more huminite than liptinite macerals, while inertinite is negligible. Huminite occurs mainly in the form of texto-ulminite, textinite, densinite, and gelinite. Liptinite consists of sporinite, cutinite, resinite, suberinite, liptodetrinite, and terpenite. The morphology of cutinite, sporinite, and the presence of terpenite indicate that the peat-forming vegetation may consist of conifers. In addition to the macerals, the coal samples contain a small to moderate amount of mineral matter. Silica and clay minerals are the main minerals found in the cavities and between the cracks of the coals. The assemblage of macerals and mineral matter indicates that the Mae Than coals were formed mainly from common peat-forming vegetation, possibly conifers, in a freshwater forest swamp or mire in a warm temperate climate. In addition, the high degree of preservation of the macerals indicates a high water table and suggests rheotrophic, anoxic, limnotelmatic to telmatic conditions during deposition.Thunyapat SattraburutBenjavun RatanasthienMahidol Universityarticlemaceralcoal petrographymae thanmiocenelignitepaleoclimateEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENEnvironment and Natural Resources Journal, Vol 20, Iss 1, Pp 96-109 (2021)
institution DOAJ
collection DOAJ
language EN
topic maceral
coal petrography
mae than
miocene
lignite
paleoclimate
Environmental technology. Sanitary engineering
TD1-1066
Environmental sciences
GE1-350
spellingShingle maceral
coal petrography
mae than
miocene
lignite
paleoclimate
Environmental technology. Sanitary engineering
TD1-1066
Environmental sciences
GE1-350
Thunyapat Sattraburut
Benjavun Ratanasthien
Maceral Association in Coal-bearing Formation of Mae Than Coal Mine in Lampang, Thailand - Implication for Depositional Environment
description The Mae Than Basin in Lampang Province contains low-ranked coal reserves of northern Thailand. Coal seams and ball clays were mined in the southern part of the basin. This study focuses on the coal petrography of coal samples collected from the upper coal seam in the Mae Than Coal Mine. Both the organic and inorganic constituents provide information on the nature and characteristics of the coal, reflecting the physical and chemical behaviors of coal. Petrological analysis reveals that the Mae Than coals contain more huminite than liptinite macerals, while inertinite is negligible. Huminite occurs mainly in the form of texto-ulminite, textinite, densinite, and gelinite. Liptinite consists of sporinite, cutinite, resinite, suberinite, liptodetrinite, and terpenite. The morphology of cutinite, sporinite, and the presence of terpenite indicate that the peat-forming vegetation may consist of conifers. In addition to the macerals, the coal samples contain a small to moderate amount of mineral matter. Silica and clay minerals are the main minerals found in the cavities and between the cracks of the coals. The assemblage of macerals and mineral matter indicates that the Mae Than coals were formed mainly from common peat-forming vegetation, possibly conifers, in a freshwater forest swamp or mire in a warm temperate climate. In addition, the high degree of preservation of the macerals indicates a high water table and suggests rheotrophic, anoxic, limnotelmatic to telmatic conditions during deposition.
format article
author Thunyapat Sattraburut
Benjavun Ratanasthien
author_facet Thunyapat Sattraburut
Benjavun Ratanasthien
author_sort Thunyapat Sattraburut
title Maceral Association in Coal-bearing Formation of Mae Than Coal Mine in Lampang, Thailand - Implication for Depositional Environment
title_short Maceral Association in Coal-bearing Formation of Mae Than Coal Mine in Lampang, Thailand - Implication for Depositional Environment
title_full Maceral Association in Coal-bearing Formation of Mae Than Coal Mine in Lampang, Thailand - Implication for Depositional Environment
title_fullStr Maceral Association in Coal-bearing Formation of Mae Than Coal Mine in Lampang, Thailand - Implication for Depositional Environment
title_full_unstemmed Maceral Association in Coal-bearing Formation of Mae Than Coal Mine in Lampang, Thailand - Implication for Depositional Environment
title_sort maceral association in coal-bearing formation of mae than coal mine in lampang, thailand - implication for depositional environment
publisher Mahidol University
publishDate 2021
url https://doaj.org/article/9a7b40c51b1448ba823ce1d8b4a74748
work_keys_str_mv AT thunyapatsattraburut maceralassociationincoalbearingformationofmaethancoalmineinlampangthailandimplicationfordepositionalenvironment
AT benjavunratanasthien maceralassociationincoalbearingformationofmaethancoalmineinlampangthailandimplicationfordepositionalenvironment
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