Geology and characterization of the pecket coal deposit, megellan region, chile
The geology, petrography and chemical variation of the Pecket coal sequence, Magellan Region (52_x0001_57VS, 71_x0001_10VW), the only Chilean coal used for electricity generation on a large scale, has been studied in order to predict their combustion behaviour, especially in coal blends. The deposit...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
ELSEVIER SCIENCE BV
|
Subjects: | |
Online Access: | http://hdl.handle.net/10533/197432 |
id |
ftconicyt:oai:localhost:10533/197432 |
---|---|
record_format |
openpolar |
spelling |
ftconicyt:oai:localhost:10533/197432 2023-05-15T13:53:09+02:00 Geology and characterization of the pecket coal deposit, megellan region, chile Alfaro-Hanne, Guillermo Helle-Jara, Sonia Kelm, Úrsula Hidalgo-Pastorini, Eduardo NLD AMSTERDAM http://hdl.handle.net/10533/197432 ENG eng ELSEVIER SCIENCE BV instname: Conicyt reponame: Repositorio Digital RI2.0 info:eu-repo/grantAgreement/Fondef/D98I1062 info:eu-repo/semantics/dataset/hdl.handle.net/10533/93477 http://hdl.handle.net/10533/197432 wos: NO ENCONTRADO issn: 0166-5162 info:eu-repo/semantics/openAccess INTERNATIONAL JOURNAL OF COAL GEOLOGY info:eu-repo/semantics/article ftconicyt 2019-09-07T08:18:24Z The geology, petrography and chemical variation of the Pecket coal sequence, Magellan Region (52_x0001_57VS, 71_x0001_10VW), the only Chilean coal used for electricity generation on a large scale, has been studied in order to predict their combustion behaviour, especially in coal blends. The depositional environment of formation of the coal seams was a swamp rarely exposed to subaerial conditions and was associated with the development of the folded foreland of the Magellan basin during the Tertiary (Oligo–Miocene). The general tectonic regime of the collision of the Antarctic and South American plates is reflected by a system of joints with 40_x0001_N–50_x0001_W strike. The maceral composition of all six seams studied indicates high contents of vitrinite ( > 90%), minor content of liptinite (4.7%) and inertinite ( < 2%). Occurrence of tonstein horizons altered to kaolinite indicates a distal volcanism during peat accumulation. Coal rank varies between lignite and subbituminous (Ro = 0.28–0.42%) with an average dry basis calorific value of 5450 kcal/kg, 17 wt.% moisture, 41 wt.% volatile matter, and sulphur content below 0.5 wt.%. The mineral matter (LTA) associated with the coal shows a dominance of kaolinite with quartz, smectite, and minor basanite. SiO2/Al2O3 and Fe2O3/CaO ratios of the ashes diminish towards the lower seams Article in Journal/Newspaper Antarc* Antarctic Repositorio Digital Conicyt RI 2.0 (Comisión Nacional de Investigación Científica y Tecnológica) Antarctic The Antarctic |
institution |
Open Polar |
collection |
Repositorio Digital Conicyt RI 2.0 (Comisión Nacional de Investigación Científica y Tecnológica) |
op_collection_id |
ftconicyt |
language |
English |
description |
The geology, petrography and chemical variation of the Pecket coal sequence, Magellan Region (52_x0001_57VS, 71_x0001_10VW), the only Chilean coal used for electricity generation on a large scale, has been studied in order to predict their combustion behaviour, especially in coal blends. The depositional environment of formation of the coal seams was a swamp rarely exposed to subaerial conditions and was associated with the development of the folded foreland of the Magellan basin during the Tertiary (Oligo–Miocene). The general tectonic regime of the collision of the Antarctic and South American plates is reflected by a system of joints with 40_x0001_N–50_x0001_W strike. The maceral composition of all six seams studied indicates high contents of vitrinite ( > 90%), minor content of liptinite (4.7%) and inertinite ( < 2%). Occurrence of tonstein horizons altered to kaolinite indicates a distal volcanism during peat accumulation. Coal rank varies between lignite and subbituminous (Ro = 0.28–0.42%) with an average dry basis calorific value of 5450 kcal/kg, 17 wt.% moisture, 41 wt.% volatile matter, and sulphur content below 0.5 wt.%. The mineral matter (LTA) associated with the coal shows a dominance of kaolinite with quartz, smectite, and minor basanite. SiO2/Al2O3 and Fe2O3/CaO ratios of the ashes diminish towards the lower seams |
format |
Article in Journal/Newspaper |
author |
Alfaro-Hanne, Guillermo Helle-Jara, Sonia Kelm, Úrsula Hidalgo-Pastorini, Eduardo |
spellingShingle |
Alfaro-Hanne, Guillermo Helle-Jara, Sonia Kelm, Úrsula Hidalgo-Pastorini, Eduardo Geology and characterization of the pecket coal deposit, megellan region, chile |
author_facet |
Alfaro-Hanne, Guillermo Helle-Jara, Sonia Kelm, Úrsula Hidalgo-Pastorini, Eduardo |
author_sort |
Alfaro-Hanne, Guillermo |
title |
Geology and characterization of the pecket coal deposit, megellan region, chile |
title_short |
Geology and characterization of the pecket coal deposit, megellan region, chile |
title_full |
Geology and characterization of the pecket coal deposit, megellan region, chile |
title_fullStr |
Geology and characterization of the pecket coal deposit, megellan region, chile |
title_full_unstemmed |
Geology and characterization of the pecket coal deposit, megellan region, chile |
title_sort |
geology and characterization of the pecket coal deposit, megellan region, chile |
publisher |
ELSEVIER SCIENCE BV |
url |
http://hdl.handle.net/10533/197432 |
op_coverage |
NLD AMSTERDAM |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
INTERNATIONAL JOURNAL OF COAL GEOLOGY |
op_relation |
instname: Conicyt reponame: Repositorio Digital RI2.0 info:eu-repo/grantAgreement/Fondef/D98I1062 info:eu-repo/semantics/dataset/hdl.handle.net/10533/93477 http://hdl.handle.net/10533/197432 wos: NO ENCONTRADO issn: 0166-5162 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766258130590629888 |