Dating young (<1000 yr) lava flow eruptions of Piton de la Fournaise volcano from size distribution of long-lived pioneer trees

Dating recent lava flows is a critical issue to assess the volcanic hazards for nearby human populations, but traditional methods such as radiocarbon dating are often not applicable. We propose here a simple statistical method that relates the age of lava flows of the Piton de la Fournaise volcano (...

Full description

Saved in:
Bibliographic Details
Published in:Journal of volcanology and geothermal research 2020-09, Vol.401, p.106974, Article 106974
Main Authors: Albert, Sébastien, Flores, Olivier, Michon, Laurent, Strasberg, Dominique
Format: Article
Language:English
Subjects:
Agarista salicifolia
Earth Sciences
Ecological succession
Effusive volcano
Eruption recurrence pattern
Réunion island
Sciences of the Universe
Volcanic hazard
Volcanology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-a425t-cfc06580dd17eadf02a85413511bf76656ceea420a1732ad732dd9417d242c2e3
cites cdi_FETCH-LOGICAL-a425t-cfc06580dd17eadf02a85413511bf76656ceea420a1732ad732dd9417d242c2e3
container_end_page
container_issue
container_start_page 106974
container_title Journal of volcanology and geothermal research
container_volume 401
creator Albert, Sébastien
Flores, Olivier
Michon, Laurent
Strasberg, Dominique
description Dating recent lava flows is a critical issue to assess the volcanic hazards for nearby human populations, but traditional methods such as radiocarbon dating are often not applicable. We propose here a simple statistical method that relates the age of lava flows of the Piton de la Fournaise volcano (PdF) to the size of Agarista salicifolia (Ericaceae), a long-lived pioneer tree that quickly establishes after eruption and able to live > 600 years. We measured the diameter at base of 711 trees on 20 dated lava flows (between 1401 CE and 2007 CE). We used a log-log linear model to assess the relationship between maximum diameter at base of Agarista salicifolia and the age of lava flows, and showed a very strong correlation (R2 = 0.987, p 
doi_str_mv 10.1016/j.jvolgeores.2020.106974
format article
fullrecord <record><control><sourceid>hal_cross</sourceid><recordid>TN_cdi_hal_primary_oai_HAL_hal_02894512v1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0377027319306134</els_id><sourcerecordid>oai_HAL_hal_02894512v1</sourcerecordid><originalsourceid>FETCH-LOGICAL-a425t-cfc06580dd17eadf02a85413511bf76656ceea420a1732ad732dd9417d242c2e3</originalsourceid><addsrcrecordid>eNqFkE1OwzAQhS0EEuXnDl7SRcrY-XEqsSmFAlIlWMDacu1JcZXGlZ0GlRVH4SycDEdFsGQzI71532jmEUIZjBiw4nI1WnWuXqLzGEYceC8XY5EdkAErBU8KGItDMoBUiAS4SI_JSQgrAGBQwoB83KjWNku6c9tYL65YnHx97vyQ1qpTtKrdG0W_3bTWNYG6ij7Z1jXUYJzTmdv6RtmANJ6gVeNo5d2aBvuO1NjQervY9mDP1a5ZJrXt0NBNlBA9bT1iOCNHlaoDnv_0U_Iyu32e3ifzx7uH6WSeqIznbaIrDUVegjFMoDIVcFXmGUtzxhaVKIq80IjRCoqJlCsTizHjjAnDM645pqdkuN_7qmq58Xat_E46ZeX9ZC57DXg5znLGOxa95d6rvQvBY_ULMJB96nIl_1KXfepyn3pEr_coxl86i14GbbHRaKxH3Urj7P9LvgGh2pHc</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Dating young (&lt;1000 yr) lava flow eruptions of Piton de la Fournaise volcano from size distribution of long-lived pioneer trees</title><source>ScienceDirect Journals</source><creator>Albert, Sébastien ; Flores, Olivier ; Michon, Laurent ; Strasberg, Dominique</creator><creatorcontrib>Albert, Sébastien ; Flores, Olivier ; Michon, Laurent ; Strasberg, Dominique</creatorcontrib><description>Dating recent lava flows is a critical issue to assess the volcanic hazards for nearby human populations, but traditional methods such as radiocarbon dating are often not applicable. We propose here a simple statistical method that relates the age of lava flows of the Piton de la Fournaise volcano (PdF) to the size of Agarista salicifolia (Ericaceae), a long-lived pioneer tree that quickly establishes after eruption and able to live &gt; 600 years. We measured the diameter at base of 711 trees on 20 dated lava flows (between 1401 CE and 2007 CE). We used a log-log linear model to assess the relationship between maximum diameter at base of Agarista salicifolia and the age of lava flows, and showed a very strong correlation (R2 = 0.987, p &lt; 10-15). We then used this calibrated model to estimate the age of 11 lava flows between 1447 CE (CI: 1349–1531) and 1823 CE (CI: 1806–1839). These new ages, combined with existing radiocarbon ages and historical records, indicate three clusters of eruptions (1460–1630, 1690–1840, since 1970 CE) affecting both the caldera and the flanks of PdF. We interpret such discontinuous dynamics made of periods of intense and low activity as evidencing pulses of high magma supply since at least the 11th century. Overall, our work shows that dating lava flow with calibration based on the size distribution of long-lived pioneer trees represents an accurate alternative method to redefine the hazard map of lava flow inundation. The existence of long-lived pioneer trees in several volcanic areas provides the opportunity to use the same framework in order to better understand eruption recurrence patterns. •We develop an original method to date young lava flows (&lt;1000 yrs) in the Tropics•Pioneer tree diameters are used to date lava flows of PdF over the last 700 years•PdF experienced two volcanic pulses shortly before human settlement on Réunion</description><identifier>ISSN: 0377-0273</identifier><identifier>EISSN: 1872-6097</identifier><identifier>DOI: 10.1016/j.jvolgeores.2020.106974</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Agarista salicifolia ; Earth Sciences ; Ecological succession ; Effusive volcano ; Eruption recurrence pattern ; Réunion island ; Sciences of the Universe ; Volcanic hazard ; Volcanology</subject><ispartof>Journal of volcanology and geothermal research, 2020-09, Vol.401, p.106974, Article 106974</ispartof><rights>2020 Elsevier B.V.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a425t-cfc06580dd17eadf02a85413511bf76656ceea420a1732ad732dd9417d242c2e3</citedby><cites>FETCH-LOGICAL-a425t-cfc06580dd17eadf02a85413511bf76656ceea420a1732ad732dd9417d242c2e3</cites><orcidid>0000-0002-4070-2117 ; 0000-0002-4486-5378 ; 0000-0002-1416-0449</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,777,781,882,27905,27906</link.rule.ids><backlink>$$Uhttps://hal.univ-reunion.fr/hal-02894512$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Albert, Sébastien</creatorcontrib><creatorcontrib>Flores, Olivier</creatorcontrib><creatorcontrib>Michon, Laurent</creatorcontrib><creatorcontrib>Strasberg, Dominique</creatorcontrib><title>Dating young (&lt;1000 yr) lava flow eruptions of Piton de la Fournaise volcano from size distribution of long-lived pioneer trees</title><title>Journal of volcanology and geothermal research</title><description>Dating recent lava flows is a critical issue to assess the volcanic hazards for nearby human populations, but traditional methods such as radiocarbon dating are often not applicable. We propose here a simple statistical method that relates the age of lava flows of the Piton de la Fournaise volcano (PdF) to the size of Agarista salicifolia (Ericaceae), a long-lived pioneer tree that quickly establishes after eruption and able to live &gt; 600 years. We measured the diameter at base of 711 trees on 20 dated lava flows (between 1401 CE and 2007 CE). We used a log-log linear model to assess the relationship between maximum diameter at base of Agarista salicifolia and the age of lava flows, and showed a very strong correlation (R2 = 0.987, p &lt; 10-15). We then used this calibrated model to estimate the age of 11 lava flows between 1447 CE (CI: 1349–1531) and 1823 CE (CI: 1806–1839). These new ages, combined with existing radiocarbon ages and historical records, indicate three clusters of eruptions (1460–1630, 1690–1840, since 1970 CE) affecting both the caldera and the flanks of PdF. We interpret such discontinuous dynamics made of periods of intense and low activity as evidencing pulses of high magma supply since at least the 11th century. Overall, our work shows that dating lava flow with calibration based on the size distribution of long-lived pioneer trees represents an accurate alternative method to redefine the hazard map of lava flow inundation. The existence of long-lived pioneer trees in several volcanic areas provides the opportunity to use the same framework in order to better understand eruption recurrence patterns. •We develop an original method to date young lava flows (&lt;1000 yrs) in the Tropics•Pioneer tree diameters are used to date lava flows of PdF over the last 700 years•PdF experienced two volcanic pulses shortly before human settlement on Réunion</description><subject>Agarista salicifolia</subject><subject>Earth Sciences</subject><subject>Ecological succession</subject><subject>Effusive volcano</subject><subject>Eruption recurrence pattern</subject><subject>Réunion island</subject><subject>Sciences of the Universe</subject><subject>Volcanic hazard</subject><subject>Volcanology</subject><issn>0377-0273</issn><issn>1872-6097</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkE1OwzAQhS0EEuXnDl7SRcrY-XEqsSmFAlIlWMDacu1JcZXGlZ0GlRVH4SycDEdFsGQzI71532jmEUIZjBiw4nI1WnWuXqLzGEYceC8XY5EdkAErBU8KGItDMoBUiAS4SI_JSQgrAGBQwoB83KjWNku6c9tYL65YnHx97vyQ1qpTtKrdG0W_3bTWNYG6ij7Z1jXUYJzTmdv6RtmANJ6gVeNo5d2aBvuO1NjQervY9mDP1a5ZJrXt0NBNlBA9bT1iOCNHlaoDnv_0U_Iyu32e3ifzx7uH6WSeqIznbaIrDUVegjFMoDIVcFXmGUtzxhaVKIq80IjRCoqJlCsTizHjjAnDM645pqdkuN_7qmq58Xat_E46ZeX9ZC57DXg5znLGOxa95d6rvQvBY_ULMJB96nIl_1KXfepyn3pEr_coxl86i14GbbHRaKxH3Urj7P9LvgGh2pHc</recordid><startdate>20200901</startdate><enddate>20200901</enddate><creator>Albert, Sébastien</creator><creator>Flores, Olivier</creator><creator>Michon, Laurent</creator><creator>Strasberg, Dominique</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0002-4070-2117</orcidid><orcidid>https://orcid.org/0000-0002-4486-5378</orcidid><orcidid>https://orcid.org/0000-0002-1416-0449</orcidid></search><sort><creationdate>20200901</creationdate><title>Dating young (&lt;1000 yr) lava flow eruptions of Piton de la Fournaise volcano from size distribution of long-lived pioneer trees</title><author>Albert, Sébastien ; Flores, Olivier ; Michon, Laurent ; Strasberg, Dominique</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a425t-cfc06580dd17eadf02a85413511bf76656ceea420a1732ad732dd9417d242c2e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Agarista salicifolia</topic><topic>Earth Sciences</topic><topic>Ecological succession</topic><topic>Effusive volcano</topic><topic>Eruption recurrence pattern</topic><topic>Réunion island</topic><topic>Sciences of the Universe</topic><topic>Volcanic hazard</topic><topic>Volcanology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Albert, Sébastien</creatorcontrib><creatorcontrib>Flores, Olivier</creatorcontrib><creatorcontrib>Michon, Laurent</creatorcontrib><creatorcontrib>Strasberg, Dominique</creatorcontrib><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Journal of volcanology and geothermal research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Albert, Sébastien</au><au>Flores, Olivier</au><au>Michon, Laurent</au><au>Strasberg, Dominique</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dating young (&lt;1000 yr) lava flow eruptions of Piton de la Fournaise volcano from size distribution of long-lived pioneer trees</atitle><jtitle>Journal of volcanology and geothermal research</jtitle><date>2020-09-01</date><risdate>2020</risdate><volume>401</volume><spage>106974</spage><pages>106974-</pages><artnum>106974</artnum><issn>0377-0273</issn><eissn>1872-6097</eissn><abstract>Dating recent lava flows is a critical issue to assess the volcanic hazards for nearby human populations, but traditional methods such as radiocarbon dating are often not applicable. We propose here a simple statistical method that relates the age of lava flows of the Piton de la Fournaise volcano (PdF) to the size of Agarista salicifolia (Ericaceae), a long-lived pioneer tree that quickly establishes after eruption and able to live &gt; 600 years. We measured the diameter at base of 711 trees on 20 dated lava flows (between 1401 CE and 2007 CE). We used a log-log linear model to assess the relationship between maximum diameter at base of Agarista salicifolia and the age of lava flows, and showed a very strong correlation (R2 = 0.987, p &lt; 10-15). We then used this calibrated model to estimate the age of 11 lava flows between 1447 CE (CI: 1349–1531) and 1823 CE (CI: 1806–1839). These new ages, combined with existing radiocarbon ages and historical records, indicate three clusters of eruptions (1460–1630, 1690–1840, since 1970 CE) affecting both the caldera and the flanks of PdF. We interpret such discontinuous dynamics made of periods of intense and low activity as evidencing pulses of high magma supply since at least the 11th century. Overall, our work shows that dating lava flow with calibration based on the size distribution of long-lived pioneer trees represents an accurate alternative method to redefine the hazard map of lava flow inundation. The existence of long-lived pioneer trees in several volcanic areas provides the opportunity to use the same framework in order to better understand eruption recurrence patterns. •We develop an original method to date young lava flows (&lt;1000 yrs) in the Tropics•Pioneer tree diameters are used to date lava flows of PdF over the last 700 years•PdF experienced two volcanic pulses shortly before human settlement on Réunion</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.jvolgeores.2020.106974</doi><orcidid>https://orcid.org/0000-0002-4070-2117</orcidid><orcidid>https://orcid.org/0000-0002-4486-5378</orcidid><orcidid>https://orcid.org/0000-0002-1416-0449</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0377-0273
ispartof Journal of volcanology and geothermal research, 2020-09, Vol.401, p.106974, Article 106974
issn 0377-0273
1872-6097
language eng
recordid cdi_hal_primary_oai_HAL_hal_02894512v1
source ScienceDirect Journals
subjects Agarista salicifolia
Earth Sciences
Ecological succession
Effusive volcano
Eruption recurrence pattern
Réunion island
Sciences of the Universe
Volcanic hazard
Volcanology
title Dating young (<1000 yr) lava flow eruptions of Piton de la Fournaise volcano from size distribution of long-lived pioneer trees
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-17T15%3A14%3A49IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-hal_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Dating%20young%20(%3C1000%C2%A0yr)%20lava%20flow%20eruptions%20of%20Piton%20de%20la%20Fournaise%20volcano%20from%20size%20distribution%20of%20long-lived%20pioneer%20trees&rft.jtitle=Journal%20of%20volcanology%20and%20geothermal%20research&rft.au=Albert,%20S%C3%A9bastien&rft.date=2020-09-01&rft.volume=401&rft.spage=106974&rft.pages=106974-&rft.artnum=106974&rft.issn=0377-0273&rft.eissn=1872-6097&rft_id=info:doi/10.1016/j.jvolgeores.2020.106974&rft_dat=%3Chal_cross%3Eoai_HAL_hal_02894512v1%3C/hal_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-a425t-cfc06580dd17eadf02a85413511bf76656ceea420a1732ad732dd9417d242c2e3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true