Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications
Pyrite framboids have been recognized in fumaroles on Deception Island, Antarctica. The sulphide was deposited around reworked pyroclastic tephra (lapilli). The formation process starts as a reaction between glass and hydrogen sulphide, giving rise to nucleation and growth of iron monosulfide microc...
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2004
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n1_p152_Agusto http://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p152_Agusto |
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paper:paper_00044822_v59_n1_p152_Agusto2023-06-08T14:25:43Z Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications Antarctica Deception Island Framboids Fumarole Pyrite crystallization greigite massive sulfide pyrite Antarctica Arctic and Antarctic Deception Island South Shetland Islands World Pyrite framboids have been recognized in fumaroles on Deception Island, Antarctica. The sulphide was deposited around reworked pyroclastic tephra (lapilli). The formation process starts as a reaction between glass and hydrogen sulphide, giving rise to nucleation and growth of iron monosulfide microcrystals. The microcrystals then convert to greigite, and form aggregates of uniformly sized microcrystals (development of framboids). Finally, greigite is replaced by pyrite. In this study pyrite was observed forming at 100°C in less than one hour. © 2004 Asociación Geológica Argentina. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n1_p152_Agusto http://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p152_Agusto |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Antarctica Deception Island Framboids Fumarole Pyrite crystallization greigite massive sulfide pyrite Antarctica Arctic and Antarctic Deception Island South Shetland Islands World |
spellingShingle |
Antarctica Deception Island Framboids Fumarole Pyrite crystallization greigite massive sulfide pyrite Antarctica Arctic and Antarctic Deception Island South Shetland Islands World Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications |
topic_facet |
Antarctica Deception Island Framboids Fumarole Pyrite crystallization greigite massive sulfide pyrite Antarctica Arctic and Antarctic Deception Island South Shetland Islands World |
description |
Pyrite framboids have been recognized in fumaroles on Deception Island, Antarctica. The sulphide was deposited around reworked pyroclastic tephra (lapilli). The formation process starts as a reaction between glass and hydrogen sulphide, giving rise to nucleation and growth of iron monosulfide microcrystals. The microcrystals then convert to greigite, and form aggregates of uniformly sized microcrystals (development of framboids). Finally, greigite is replaced by pyrite. In this study pyrite was observed forming at 100°C in less than one hour. © 2004 Asociación Geológica Argentina. |
title |
Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications |
title_short |
Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications |
title_full |
Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications |
title_fullStr |
Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications |
title_full_unstemmed |
Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications |
title_sort |
framboidal pyrite in fumaroles on deception island (antarctica): genetic implications |
publishDate |
2004 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n1_p152_Agusto http://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p152_Agusto |
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1768544846633500672 |