{"id":88086,"date":"2021-09-13T13:32:31","date_gmt":"2021-09-13T11:32:31","guid":{"rendered":"https:\/\/diaridigital.urv.cat\/?p=88086"},"modified":"2024-07-02T11:51:54","modified_gmt":"2024-07-02T09:51:54","slug":"a-catalan-research-team-discovers-the-eruption-mechanisms-and-inner-structure-of-a-3-5-million-year-old-volcano-in-caldes-de-malavella","status":"publish","type":"post","link":"https:\/\/diaridigital.urv.cat\/en\/a-catalan-research-team-discovers-the-eruption-mechanisms-and-inner-structure-of-a-3-5-million-year-old-volcano-in-caldes-de-malavella\/","title":{"rendered":"A catalan research team discovers the eruption mechanisms and inner structure of a 3.5-million-year-old volcano in Caldes de Malavella"},"content":{"rendered":"

The ancient volcano El Camp dels Ninots located in the town of Caldes de Malavella hosts one of the most relevant paleontological sites of Pliocene age in Europe. The site is part of the lake sediments developed within the crater of the volcano. The volcano eruption, which is known as maar-diatreme, took place 3.5 million years ago. This type of volcanic eruption is highly explosive due to the underground interaction between magma and groundwater, resulting in a crater that lacks the volcanic edifice that characterises other types of volcanoes. For this reason, the main volcano structure is buried underground. An international team of researcher including two members from Institut Catal\u00e0 de Paleoecologia Humana i Evoluci\u00f3 Social (IPHES-CERCA) and from \u00c0rea de Prehist\u00f2ria from Universitat Rovira i Virgili (URV) have published a study that reveals details on the eruption process and the inner structure of the volcano.<\/p>\n

Through eleven boreholes drilled into the crater of the volcano \u2013among them two research wells drilled in 2015 reaching more than 100 m depth\u2013 and geological and geophysical observations, the researchers have reconstructed the inner structure of El Camp dels Ninots volcano. This data has led to the generation of the first 3D model of a maar-diatreme volcano. The model reveals that the volcanic eruption took place through a combination of phreatomagmatic and strombolian explosions at a depth of 210 m generating a volume between 0.012 and 0.004 km3 of volcanic tuff and slag. The results of this research have been published this month in the international Journal of Volcanology and Geothermal Research.<\/p>\n

\u201cThe results obtained at El Camp dels Ninots using 3D geological modelling software typically applied in hydrocarbon and raw materials exploration will allow us to better understand the details on the behaviour of this type of volcanic eruption, which represents the second most important volcano type on Earth\u201d, Xavier de Bol\u00f3s, the main author of this research and postdoctoral research in Geology and Vulcanology at Universidad Nacional Aut\u00f3noma de M\u00e9xico (UNAM), has said.<\/p>\n

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Through eleven boreholes drilled into the crater of the volcano \u2013among them two research wells drilled in 2015 reaching more than 100 m depth\u2013 and geological and geophysical observations, the researchers have reconstructed the inner structure of El Camp dels Ninots volcano – G. Campeny\/IPHES<\/figcaption><\/figure>\n

In addition, this research \u201chas revealed the eruptive phases that led to the formation of the volcano, its internal structure as well as the theoretical volume of volcanic and subsequent lacustrine sediments\u201d, Bruno G\u00f3mez de Soler, researcher at IPHES-CERCA, co-director of the excavations at Camp dels Ninots, lecturer in the programme in anthropology and human evolution offered jointly by UOC (Universitat Oberta de Catalunya) and la URV (Universitat Rovira i Virgili), and one of the co-authors of this research, has said.<\/p>\n

The research arises from the project El Plio-Pleistoc\u00e8 del Camp dels Ninots i la depressi\u00f3 Prelitoral: evoluci\u00f3 paleoclim\u00e0tica, dispersions faun\u00edstiques i humanes II (CLT009\/18\/00052) funded by the Generalitat de Catalunya led by IPHES-CERCA. The research has been carried out by a team of catalan researchers working in international universities, Xavier de Bol\u00f3s from Universidad Nacional Aut\u00f3noma de Mexico (UNAM); Oriol Oms from Universitat Aut\u00f2noma de Barcelona (UAB); Pablo Rodr\u00edguez-Salgado from the Irish Centre for Research in Applied Geosciences (iCRAG) at University College Dublin (UCD); Joan Mart\u00ed from the Spanish Scientific Research Council (GEO3BCN-CSIC); Bruno G\u00f3mez and Gerard Campeny from IPHES-CERCA and URV.<\/p>\n

Article\nBol\u00f3s et al. (2021). Eruptive evolution and 3D geological modelling of Camp dels Ninots maar-diatreme (Catalonia) through continuous intra-crater drill coring. Journal of Volcanology and Geothermal Research 419: 107369. https:\/\/doi.org\/10.1016\/j.jvolgeores.2021.107369<\/p>\n

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To find out, the researchers have generated a 3D model, the first of its kind in this type of geological structures<\/p>\n","protected":false},"author":6,"featured_media":88035,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3502,3472,789,818],"tags":[4933],"class_list":["post-88086","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-anthropology-philosophy-social-work","category-history","category-faculty-arts","category-press-releases","tag-iphes"],"acf":[],"_links":{"self":[{"href":"https:\/\/diaridigital.urv.cat\/en\/wp-json\/wp\/v2\/posts\/88086","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diaridigital.urv.cat\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diaridigital.urv.cat\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diaridigital.urv.cat\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/diaridigital.urv.cat\/en\/wp-json\/wp\/v2\/comments?post=88086"}],"version-history":[{"count":0,"href":"https:\/\/diaridigital.urv.cat\/en\/wp-json\/wp\/v2\/posts\/88086\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/diaridigital.urv.cat\/en\/wp-json\/wp\/v2\/media\/88035"}],"wp:attachment":[{"href":"https:\/\/diaridigital.urv.cat\/en\/wp-json\/wp\/v2\/media?parent=88086"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diaridigital.urv.cat\/en\/wp-json\/wp\/v2\/categories?post=88086"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diaridigital.urv.cat\/en\/wp-json\/wp\/v2\/tags?post=88086"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}