Lusi, a clastic-dominated geysering system in Indonesia recently explored by surface and subsurface observations.

Karyono, Karyono, Obermann, Anne, Lupi, Matteo, Masturyono, Masturyono, Hadi, Soffian, Syafri, Ildrem, Abdurrokhim, Abdurrokhim and Mazzini, Adriano (2016) Lusi, a clastic-dominated geysering system in Indonesia recently explored by surface and subsurface observations. Terra Nova, 29 (1). pp. 13-19. DOI 10.1111/ter.12239.

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Abstract

The spectacular eruption of Lusi began in NE Java, Indonesia, on 29 May 2006 and is still ongoing. Since its birth, Lusi has presented a pulsating activity marked by frequent eruptions of gas, water, mud and clasts. The aim of this study was to bridge subsurface and surface observations to describe Lusi's behaviour. Based on visual observations from 2014 to 2015, Lusi's erupting activity is characterised by four recurrent phases: (1) regular bubbling activity; (2) clastic geysering; (3) clastic geysering with mud bursts and intense vapour discharge; (4) quiescent phase. With a temporary network of five seismic stations deployed around the crater, we could identify tremor events related to phases 2 and 3. One of the tremor types shows periodic overtones that we associate with mud wagging in the feeder conduit. On the basis of our observations, we would describe Lusi as a sedimentary‐hosted hydrothermal system with clastic‐dominated geysering activity.

Document Type: Article
Additional Information: Erratum: Volume 29, Issue 4, 2017, Terra Nova, pages: 264-264
Keywords: Lusi eruption, Indonesia
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1111/ter.12239
ISSN: 0954-4879
Projects: FLOWS
Date Deposited: 27 Apr 2018 08:19
Last Modified: 17 Jan 2019 13:35
URI: http://oceanrep.geomar.de/id/eprint/42857

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