Self-potential Data - Piton de la Fournaise caldera collapse

Here are the SP data recorded on the 27 and 30 March 2007 before the April 2007 caldera collapse at Piton de la Fournaise. The SP profile, 440m long, was installed before the collapse, between the rim of the Dolomieu crater and the Soufrière pit crater. The SP dynamic between the two reiterations displays two main anomalies. These anomalies are precisely correlated with the location of collapsed areas during the April 2007 Dolomieu caldera formation. These data are to be published in Volcanica Journal (Chaput et al., 2019).

本数据集包含2007年4月富尔奈斯火山（Piton de la Fournaise）破火山口塌陷前，于2007年3月27日和30日记录获取的自然电位（Self-Potential，SP）数据。该总长440米的自然电位测线于塌陷前布设，铺设于多洛米厄火山口（Dolomieu Crater）边缘与苏弗里耶尔坑火山口（Soufrière Pit Crater）之间。两次重复观测间的自然电位动态变化呈现两处主要异常，这些异常与2007年4月多洛米厄破火山口形成过程中的塌陷区域位置精准对应。本数据集相关研究成果已发表于《Volcanica》期刊（Chaput等，2019）。