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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Bibliographic Details
Main Authors: Agusto, M.R., Caselli, A.T., dos Santos Afonso, M.
Format: Journal/Newspaper
Language:unknown
Subjects:
Antarctica
Deception Island
Framboids
Fumarole
Pyrite
crystallization
greigite
massive sulfide
Arctic and Antarctic
South Shetland Islands
World
Antarc*
Antarctic
Arctic
Online Access:https://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p152_Agusto
id ftunibueairesbd:todo:paper_00044822_v59_n1_p152_Agusto
record_format openpolar
spelling ftunibueairesbd:todo:paper_00044822_v59_n1_p152_Agusto 2023-10-29T02:32:32+01:00 Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications Agusto, M.R. Caselli, A.T. dos Santos Afonso, M. https://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p152_Agusto unknown http://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p152_Agusto info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Antarctica Deception Island Framboids Fumarole Pyrite crystallization greigite massive sulfide Arctic and Antarctic South Shetland Islands World JOUR ftunibueairesbd https://doi.org/20.500.12110/paper_00044822_v59_n1_p152_Agusto 2023-10-05T01:53:45Z 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. Journal/Newspaper Antarc* Antarctic Antarctica Arctic Deception Island South Shetland Islands Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
institution Open Polar
collection Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
op_collection_id ftunibueairesbd
language unknown
topic Antarctica
Deception Island
Framboids
Fumarole
Pyrite
crystallization
greigite
massive sulfide
Arctic and Antarctic
South Shetland Islands
World
spellingShingle Antarctica
Deception Island
Framboids
Fumarole
Pyrite
crystallization
greigite
massive sulfide
Arctic and Antarctic
South Shetland Islands
World
Agusto, M.R.
Caselli, A.T.
dos Santos Afonso, M.
Framboidal pyrite in fumaroles on Deception Island (Antarctica): Genetic implications
topic_facet Antarctica
Deception Island
Framboids
Fumarole
Pyrite
crystallization
greigite
massive sulfide
Arctic and Antarctic
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.
format Journal/Newspaper
author Agusto, M.R.
Caselli, A.T.
dos Santos Afonso, M.
author_facet Agusto, M.R.
Caselli, A.T.
dos Santos Afonso, M.
author_sort Agusto, M.R.
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
url https://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p152_Agusto
genre Antarc*
Antarctic
Antarctica
Arctic
Deception Island
South Shetland Islands
genre_facet Antarc*
Antarctic
Antarctica
Arctic
Deception Island
South Shetland Islands
op_relation http://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p152_Agusto
op_rights info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
op_doi https://doi.org/20.500.12110/paper_00044822_v59_n1_p152_Agusto
_version_ 1781054149058625536

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