Timescales of magmatic processes during the eruptive cycle 2014–2015 at Piton de la Fournaise, La Réunion, obtained from Mg–Fe diffusion modelling in olivine

Sundermeyer, Caren; Muro, Andréa Di; Gordeychik, Boris

doi:10.1007/s00410-019-1642-y

Cited by 21 publications

(13 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Eruptions are systematically preceded by three types of precursors: volcanotectonic (VT) seismicity, volcano deformation, and CO 2 soil degassing, all of which occur on two timescales. In the long-term (weeks to months), slow edifice inflation (less than 3 mm per day), increased seismicity (with 10-100 VT earthquakes per day), and enhanced soil CO 2 ground degassing (e.g., Boudoire et al, 2017;Sundermeyer et al, 2020) are recorded. These changes are thought to be linked to the refilling and pressurization of the shallow magmatic storage system (e.g., Peltier et al, 2009Peltier et al, , 2018.…”

Section: Eruption Dynamics At Piton De La Fournaisementioning

confidence: 99%

Volcano Crisis Management at Piton de la Fournaise (La Réunion) during the COVID-19 Lockdown

Peltier

Ferrazzini

Muro

et al. 2020

Seismological Research Letters

Self Cite

View full text Add to dashboard Cite

In March 2020, the coronavirus disease 2019 outbreak was declared a pandemic by the World Health Organization and became a global health crisis. Authorities worldwide implemented lockdowns to restrict travel and social exchanges in a global effort to counter the pandemic. In France, and in French overseas departments, the lockdown was effective from 17 March to 11 May 2020. It was in this context that the 2–6 April 2020 eruption of Piton de la Fournaise (La Réunion Island, Indian Ocean) took place. Upon the announcement of the lockdown in France, a reduced activity plan was set up by the Institut de Physique du Globe de Paris, which manages the Observatoire Volcanologique du Piton de la Fournaise (OVPF). The aim was to (1) maintain remote monitoring operations by teleworking and (2) authorize fieldwork only for critical reasons, such as serious breakdowns of stations or transmission relays. This eruption provided an opportunity for the observatory to validate its capacity to manage a volcanic crisis with 100% remotely operated monitoring networks. We thus present the long- and short-term precursors to the eruption, and the evolution of the eruption recorded using the real-time monitoring data as communicated to the stakeholders. The data were from both continuously recording and transmitting field instruments as well as satellites. The volcano observatory staff remotely managed the volcano crisis with the various stakeholders based only on these remotely functioning networks. Monitoring duties were also assured in the absence of ad hoc field investigation of the eruption by observatory staff or face-to-face communications. The density and reliability of the OVPF networks, combined with satellite observations, allowed for trustworthy instrument-based monitoring of the eruption and continuity of the OVPF duties in issuing regular updates of volcanic activity in the context of a double crisis: volcanic and health.

show abstract

Section: Eruption Dynamics At Piton De La Fournaisementioning

confidence: 99%

Volcano Crisis Management at Piton de la Fournaise (La Réunion) during the COVID-19 Lockdown

Peltier

Ferrazzini

Muro

et al. 2020

Seismological Research Letters

Self Cite

View full text Add to dashboard Cite

show abstract

“…Since for these samples we concentrate only on the outer diffusion boundaries between core and crystal rims, these diffusion times should represent the timespan between entrainment of olivine crystals into a new magma and their rapid cooling after eruption at the surface. We term this point of entrainment as reactivation time of older olivine crystals (Sundermeyer et al 2020). Olivine crystals can be reactivated from prior storage in a crystal mush or cogenetic cumulates, or from a resident, more evolved magma by a newly ascending more mafic magma.…”

Section: Our Approach To Diffusion Modelingmentioning

confidence: 99%

“…It is known from other volcanic settings that mafic recharge events and subsequent magma mixing may cause precursor geophysical activity (e.g. Kahl et al 2011Kahl et al , 2013Sundermeyer et al 2020) and eventually trigger eruptions (Sparks et al 1977;Murphy et al 2000;Eichelberger et al 2006;Wright et al 2011;Ruprecht and Plank 2013;Cashman and Giordano 2014;Wolff et al 2015;Wiebe 2016). Therefore, with respect to the Eifel Volcanic fields, it is important to understand ascent and mixing time scales for mafic magmas.…”

Section: What Happened Prior To the Eruption Of The Laacher See Volcano?mentioning

confidence: 99%

“…Diffusion of major elements (Mg-Fe) and trace elements (e.g. Ni) in olivine occurs in the range of hours to years and is, therefore, useful to identify processes as magma ascent (Gordeychik et al 2018;Mutch et al 2019), crystal mush reactivation (Bradshaw et al 2018) and mixing processes (Kahl et al 2011(Kahl et al , 2013Albert et al 2015Albert et al , 2016Albert et al , 2019Sundermeyer et al 2020) that are directly connected to eruptions.…”

Section: Introductionmentioning

confidence: 99%

“…Recent studies show that mixing and eruption in basaltic magma systems can occur within days to months (e.g. Viccaro et al 2016;Brenna et al 2018;Lynn et al 2018;Albert et al 2019;Sundermeyer et al 2020). Even large and compositionally evolved, silicic systems may also yield timescales of only a few years between recharge events and eruption, which is an exceedingly short time for reactivation of these long-lived systems (Cooper and Kent 2014;Cooper et al 2016;Druitt et al 2012Druitt et al , 2016.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Timescales from magma mixing to eruption in alkaline volcanism in the Eifel volcanic fields, western Germany

Sundermeyer

Gätjen

Weimann

2020

Contrib Mineral Petrol

Self Cite

View full text Add to dashboard Cite

Diffusion profiles in olivine crystals from the final mafic eruption products of the compositionally zoned Laacher See tephra deposit were measured to identify recharge and eruption-triggering events prior to the eruption of the Laacher See volcano (12.9 kyr). These products represent the hybrids of mixing between phonolite and intruding basanite at the bottom of the reservoir, which is likely related to the eruption-triggering event. Additionally, olivine crystals from ten basanitic scoria cones and maar deposits (East Eifel) and two nephelinites (West Eifel) were analyzed to constrain histories of olivine in Quaternary basanite magmas. Olivine crystals from the Laacher See hybrids vary in core composition (Fo 83-89) and show reversely zoned mantles with high Fo 87.8-89 compared to olivine in East Eifel basanites erupted in nearby, older scoria cones. Towards the crystal margin, olivine in the hybrids develop a normally zoned overgrowth (Fo 86.5-87.5). Olivine from East Eifel basanites show similar zonation and core compositions (Fo 80-88) but have less forsteritic mantles (Fo 83-88) indicating that these basanites are less primitive than those recharging the Laacher See reservoir (> Fo 89). Olivine in the West Eifel nephelinites show mantles similar to those from Laacher See (Fo 87.5-90), but have normal zoning and high-Fo cores (Fo 88-92). This indicates that olivine in the Laacher See hybrids were entrained by a near-primary basanite from older cumulates just before hybridization of the basanite with the phonolite. Diffusion modeling indicates maximum timescales between entrainment and eruption of Laacher See of 30-400 days that are comparable to those calculated for olivine from basanitic scoria cones (10-400 days).

show abstract

Monitoring of Eruptive Products: Deposits Associated with Pyroclastic Fallout

Gurioli¹,

Tadini²,

Thivet³

et al. 2022

Hazards and Monitoring of Volcanic Activity 3

View full text Add to dashboard Cite

Timescales of magmatic processes during the eruptive cycle 2014–2015 at Piton de la Fournaise, La Réunion, obtained from Mg–Fe diffusion modelling in olivine

Cited by 21 publications

References 55 publications

Volcano Crisis Management at Piton de la Fournaise (La Réunion) during the COVID-19 Lockdown

Volcano Crisis Management at Piton de la Fournaise (La Réunion) during the COVID-19 Lockdown

Timescales from magma mixing to eruption in alkaline volcanism in the Eifel volcanic fields, western Germany

Monitoring of Eruptive Products: Deposits Associated with Pyroclastic Fallout

Contact Info

Product

Resources

About