期刊
SEISMOLOGICAL RESEARCH LETTERS
卷 93, 期 5, 页码 2498-2514出版社
SEISMOLOGICAL SOC AMER
DOI: 10.1785/0220220073
关键词
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资金
- Geophysical Instrument Pool Potsdam (GIPP) [GIPP202111]
- Geothermica project Derisking exploration for geothermal plays in magmatic environments (DEEPEN) [03EE4018]
- Norwegian Research Council ENERGIX program [317676]
- Geothermica project Innovation for De-Risking Enhanced Geothermal Energy Projects (DEEP) [731117]
- European Research Council (ERC) under the European Union [821115]
- Swiss National Science Foundation [200021-18196]
This study deployed a dense seismic nodal network in the Hengill geothermal area in Iceland and analyzed the recorded datasets. The research found that the seismic records had high data quality and showed potential for various follow up studies.
From June to August 2021, we deployed a dense seismic nodal network across the Hengill geothermal area in southwest Iceland to image and characterize faults and high-temperature zones at high resolution. The nodal network comprised 498 geophone nodes spread across the northern Nesjavellir and southern Hverahlio geothermal fields and was complemented by an existing permanent and temporary backbone seismic network of a total of 44 short-period and broadband stations. In addition, we recorded distributed acoustic sensing data along two fiber optic telecommunication cables near the Nesjavellir geothermal power plant with commercial interrogators. During the time of deployment, a vibroseis survey took place around the Nesjavellir power plant. Here, we describe the network and the recorded datasets. Furthermore, we showsome initial results that indicate a high data quality and highlight the potential of the seismic records for various follow up studies, such as high-resolution event location to delineate faults and body- and surface-wave tomographies to image the subsurface velocity structure in great detail.
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