DecTephra: A new database of Deception Island's tephra record (Antarctica)
Deception Island (South Shetland Islands) is one of the most active volcanoes in Antarctica, with more than 20 explosive eruptive events registered over the past few centuries. Recent eruptions (1967, 1969, and 1970) and volcanic unrest episodes (1992, 1999, and 2014–2015) demonstrate that volcanic...
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ftleicesterunfig:oai:figshare.com:article/22829105 2024-09-15T17:44:13+00:00 DecTephra: A new database of Deception Island's tephra record (Antarctica) J Hopfenblatt A Geyer M Aulinas AM Álvarez-Valero AP Sánchez S Giralt JL Smellie 2022-05-01T00:00:00Z https://figshare.com/articles/journal_contribution/DecTephra_A_new_database_of_Deception_Island_s_tephra_record_Antarctica_/22829105 unknown 2381/22829105.v1 https://figshare.com/articles/journal_contribution/DecTephra_A_new_database_of_Deception_Island_s_tephra_record_Antarctica_/22829105 CC BY 4.0 Deception Island Tephra layer Eruptive recurrence Paleoclimatology Antarctica Holocene Data analysis Text Journal contribution 2022 ftleicesterunfig 2024-07-15T23:31:34Z Deception Island (South Shetland Islands) is one of the most active volcanoes in Antarctica, with more than 20 explosive eruptive events registered over the past few centuries. Recent eruptions (1967, 1969, and 1970) and volcanic unrest episodes (1992, 1999, and 2014–2015) demonstrate that volcanic activity will likely occur in the future. Despite this, there has been a considerable increase in the number of scientific bases, tourist activities and air and vessel traffic in the region during the last several decades. The escalation in interest has increased the amount of infrastructure and population numbers exposed to a future eruption. Thus, there is an urgent need to develop an accurate long-term assessment of the volcanic hazard of the island. However, past attempts have always been limited by the incompleteness of the eruptive record. Volcanic ash layers found in marine and lacustrine sediment cores and glaciers outside Deception Island are a fundamental source of information for reconstructing the explosive eruptive record of the volcano. The spatial distribution of the tephra layers, as well as their physicochemical analysis are invaluable for determining the size and explosiveness of past eruptive events, as well as for assessing the extent and impact of their related hazards (e.g., ash fall out). In order to overcome the dispersion of existing data among numerous publications and to facilitate the analysis of available information on tephra layers sourced in Deception Island, we present the DecTephra (Deception Island Tephra Record) database. The current database version contains 362 tephra layers (including cryptotephras) located at sites up to 3115 km distant from the island. For each tephra layer, the database includes: (i) the location and simple description of the sampling site; and (ii) the key petrologic and geochemical features of each tephra layer. A preliminary analysis of the information contained in the DecTephra database (e.g., magma composition, explosiveness, eruptive recurrence, etc.), ... Article in Journal/Newspaper Antarc* Antarctica Deception Island South Shetland Islands University of Leicester: Figshare |
institution |
Open Polar |
collection |
University of Leicester: Figshare |
op_collection_id |
ftleicesterunfig |
language |
unknown |
topic |
Deception Island Tephra layer Eruptive recurrence Paleoclimatology Antarctica Holocene Data analysis |
spellingShingle |
Deception Island Tephra layer Eruptive recurrence Paleoclimatology Antarctica Holocene Data analysis J Hopfenblatt A Geyer M Aulinas AM Álvarez-Valero AP Sánchez S Giralt JL Smellie DecTephra: A new database of Deception Island's tephra record (Antarctica) |
topic_facet |
Deception Island Tephra layer Eruptive recurrence Paleoclimatology Antarctica Holocene Data analysis |
description |
Deception Island (South Shetland Islands) is one of the most active volcanoes in Antarctica, with more than 20 explosive eruptive events registered over the past few centuries. Recent eruptions (1967, 1969, and 1970) and volcanic unrest episodes (1992, 1999, and 2014–2015) demonstrate that volcanic activity will likely occur in the future. Despite this, there has been a considerable increase in the number of scientific bases, tourist activities and air and vessel traffic in the region during the last several decades. The escalation in interest has increased the amount of infrastructure and population numbers exposed to a future eruption. Thus, there is an urgent need to develop an accurate long-term assessment of the volcanic hazard of the island. However, past attempts have always been limited by the incompleteness of the eruptive record. Volcanic ash layers found in marine and lacustrine sediment cores and glaciers outside Deception Island are a fundamental source of information for reconstructing the explosive eruptive record of the volcano. The spatial distribution of the tephra layers, as well as their physicochemical analysis are invaluable for determining the size and explosiveness of past eruptive events, as well as for assessing the extent and impact of their related hazards (e.g., ash fall out). In order to overcome the dispersion of existing data among numerous publications and to facilitate the analysis of available information on tephra layers sourced in Deception Island, we present the DecTephra (Deception Island Tephra Record) database. The current database version contains 362 tephra layers (including cryptotephras) located at sites up to 3115 km distant from the island. For each tephra layer, the database includes: (i) the location and simple description of the sampling site; and (ii) the key petrologic and geochemical features of each tephra layer. A preliminary analysis of the information contained in the DecTephra database (e.g., magma composition, explosiveness, eruptive recurrence, etc.), ... |
format |
Article in Journal/Newspaper |
author |
J Hopfenblatt A Geyer M Aulinas AM Álvarez-Valero AP Sánchez S Giralt JL Smellie |
author_facet |
J Hopfenblatt A Geyer M Aulinas AM Álvarez-Valero AP Sánchez S Giralt JL Smellie |
author_sort |
J Hopfenblatt |
title |
DecTephra: A new database of Deception Island's tephra record (Antarctica) |
title_short |
DecTephra: A new database of Deception Island's tephra record (Antarctica) |
title_full |
DecTephra: A new database of Deception Island's tephra record (Antarctica) |
title_fullStr |
DecTephra: A new database of Deception Island's tephra record (Antarctica) |
title_full_unstemmed |
DecTephra: A new database of Deception Island's tephra record (Antarctica) |
title_sort |
dectephra: a new database of deception island's tephra record (antarctica) |
publishDate |
2022 |
url |
https://figshare.com/articles/journal_contribution/DecTephra_A_new_database_of_Deception_Island_s_tephra_record_Antarctica_/22829105 |
genre |
Antarc* Antarctica Deception Island South Shetland Islands |
genre_facet |
Antarc* Antarctica Deception Island South Shetland Islands |
op_relation |
2381/22829105.v1 https://figshare.com/articles/journal_contribution/DecTephra_A_new_database_of_Deception_Island_s_tephra_record_Antarctica_/22829105 |
op_rights |
CC BY 4.0 |
_version_ |
1810491637561819136 |