scholarly journals The fumarolic CO2 output from Pico do Fogo volcano (Cape Verde)

2020 ◽  
Vol 139 (3) ◽  
pp. 325-340
Author(s):  
Alessandro Aiuppa ◽  
Ausonio Ronchi ◽  
Marcello Bitetto ◽  
Andrea L. Rizzo ◽  
Fatima Viveiros ◽  
...  
Keyword(s):  
Cape Verde ◽  
Co2 Output ◽  
Fogo Volcano

scholarly journals Engaging the Diaspora in Response to the 2014 Fogo Volcano Eruption in Cape Verde

2016 ◽  
Vol 10 (2) ◽  
pp. 185-186
Author(s):  
Elena Savoia ◽  
Leesa Lin ◽  
Noah Klein ◽  
Alberto Montrond
Keyword(s):  
Cape Verde ◽  
Volcano Eruption ◽  
Fogo Volcano

scholarly journals Reducing volcanic risk on Fogo Volcano, Cape-Verde, through a participatory approach: which out coming?

2013 ◽  
Vol 1 (6) ◽  
pp. 6559-6592 ◽  
Author(s):  
P. Texier-Teixeira ◽  
F. Chouraqui ◽  
A. Perrillat-Collomb ◽  
F. Lavigne ◽  
J. R. Cadag ◽  
...  
Keyword(s):  
Land Tenure ◽  
Cape Verde ◽  
Local People ◽  
Volcanic Risk ◽  
Public And Private ◽  
3 Dimensional ◽  
Natural Park ◽  
Access To Water ◽  
Operational Plan ◽  
Fogo Volcano

Abstract. This research paper presents the outcomes of the Work Package 5 (Socio-economical Vulnerability Assessment and Community-Based Disaster Risk Reduction) of the MIAVITA Research Program (MItigate and Assess risk from Volcanic Impact on Terrain and human Activities) conducted in Fogo Volcano, Cape-Verde. The study lasted for almost 3 yr (May 2010–January 2012) of which most of the time was spent in the village of Chã das Caldeiras, situated within the 9 km-wide caldera of the volcano inside the Fogo Natural Park. The objectives of the program included assessment of the vulnerability of the community at risk in terms of livelihoods, access to resources, and power relations between the local people and the different public and private institutions. These are important factors that need to be investigated in order to understand the root causes of vulnerability of the local people. This case study shows that the voluntary exposure of people at volcanic threats is linked with daily access to sources of livelihood specially agriculture and tourism. This is despite the perception of people of the risk on their lives and properties. In order to counter the factors of vulnerability, the study also aimed to identify and enhance local capacities. To achieve such objective, a Participatory 3-Dimensional Mapping (P3DM) activity was conducted to facilitate the dialogue between the local people and the different stakeholders as well as to prepare plans and measures to reduce volcanic risk. The P3DM was a half success considering that it has not yet led to an operational plan which takes into account the local capacities. The main reasons included (1) the non-participative aspect of the project at the beginning which should have identified priorities for people and let them lead the project to ensure the sustainability (2) deep conflicts within the community which complicated the focus group discussions around the 3-D map, and the difficulties to involve more marginalized people like women and youth, and (3) the fact that volcanic risk is not the priority for people who are more concerned on daily difficulties due to unsustainable livelihood, lack of access to water, land tenure, and the restrictions by the Fogo Natural Park administration and the municipal officials. Still, the study was successful in creating a space for dialogue between the local people and the outside stakeholders such as the Natural Park administration, the National Civil Protection Service (SNPC), and the Municipality of Santa Catarina who have all participated actively during the implementation of the project.

Mineralogy and chemistry of incrustations resulting from the 2014–2015 eruption of Fogo volcano, Cape Verde

2019 ◽  
Vol 81 (4) ◽  
Author(s):  
Teresa P. Silva ◽  
Daniel P. S. De Oliveira ◽  
João P. Veiga ◽  
Paula Ávila ◽  
Carla Candeias ◽  
...  
Keyword(s):  
Cape Verde ◽  
Fogo Volcano

scholarly journals The 2014–15 eruption and the short-term geochemical evolution of the Fogo volcano (Cape Verde): Evidence for small-scale mantle heterogeneity

Lithos ◽  
2017 ◽  
Vol 288-289 ◽  
pp. 91-107 ◽  
Author(s):  
J. Mata ◽  
S. Martins ◽  
N. Mattielli ◽  
J. Madeira ◽  
B. Faria ◽  
...  
Keyword(s):  
Cape Verde ◽  
Geochemical Evolution ◽  
Small Scale ◽  
Mantle Heterogeneity ◽  
Short Term ◽  
Fogo Volcano

Insights from fumarole gas geochemistry on the recent volcanic unrest of Pico do Fogo, Cape Verde

2021 ◽  
Author(s):  
Gladys V. Melián ◽  
Pedro A. Hernández ◽  
María Asensio-Ramos ◽  
Nemesio M. Pérez ◽  
Eleazar Padrón ◽  
...  
Keyword(s):  
Isotopic Composition ◽  
Active Volcano ◽  
Cape Verde ◽  
Volcanic System ◽  
Volcanic Unrest ◽  
Source Contributions ◽  
Volcanic Chain ◽  
Work Supports ◽  
System Time ◽  
Fogo Volcano

<p>The Cape Verde islands are located about 800 km west of Senegal, at 14°-17° latitude and 21°-25° longitude. The archipelago consists of a volcanic chain of 10 major islands and eight minor islands The only currently active volcano in the Cape Verde archipelago is Pico do Fogo, which is located on the island of Fogo. Rising to 2829 m a.s.l., it is the most active volcano of the Cabo Verde Island. We report the results of the geochemical monitoring of the fumarolic discharges at the Pico do Fogo volcano in Cape Verde from 2007 to 2016. During this period Pico do Fogo experienced a volcanic eruption (November 23, 2014) that lasted 77 days. Two fumaroles were sampled, a low (F1~100ºC) and a medium (F2~300ºC) temperature. The variations observed in the δ<sup>18</sup>O and δ<sup>2</sup>H in F1 and F2 suggest different fluid source contributions and/or fractionation processes. Although no significant changes were observed in the outlet fumarole temperatures, two clear increases were observed in the vapor fraction of fumarolic discharges during the periods 2008-2009 and 2013-2014. Also, two sharp peaks were observed in CO<sub>2</sub>/CH<sub>4</sub> ratios at both fumaroles, in November 2008 and November 2013, coinciding with significant increases in the emission rate of diffuse CO<sub>2</sub> and He, and heat flow measured in the crater of Pico do Fogo volcano. This confirms that gases with a strong magmatic component rose towards the surface within the Pico do Fogo system during 2008 and 2013. Further, F2 showed two CO<sub>2</sub>/St peaks, the first in late 2010 and the second after eruption onset, suggesting the occurrence of magmatic pulses into the volcanic system. Time series of He/CO<sub>2</sub>, H<sub>2</sub>/CO<sub>2</sub> and CO/CO<sub>2</sub> ratios are low in 2008-2009, and high in 2013-2014 period, supporting the hypothesis of fluid input from a deeper magmatic source. Regarding to the isotopic composition, increases in <sup>3</sup>He/<sup>4</sup>He (R/R<sub>A</sub>)<sub>cor</sub> are observed in both fumaroles; F1 showed a peak in 2010 from a minima in 2009 during the first magmatic reactivation onset and another in late 2013, while F2 displayed a slower rise to its maximum in late 2013. The high <sup>3</sup>He/<sup>4</sup>He ratios in both fumaroles are close to the magmatic end-member, indicating that He is predominantly of upper mantle origin. This work supports that monitoring of the chemical and isotopic composition of the fumaroles of the Pico do Fogo volcano is a very important tool to understand the processes that take place in the magmatic-hydrothermal system and to be able to predict future episodes of volcanic unrest and to mitigate volcanic risk.</p>

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