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CALDERA: A scientific drilling concept to unravel Connections Among Life, geo-Dynamics and Eruptions in a Rifting Arc caldera, Okataina Volcanic Centre, Aotearoa New Zealand

Urheber*innen

Massiot,  C.
External Organizations;

Adam,  L.
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Boyd,  E. S.
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Craig Cary,  S.
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Colman,  D. R.
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Cox,  A.
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Hughes,  E.
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Kilgour,  G.
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Lelli,  M.
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Liotta,  D.
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Lloyd,  K. G.
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Marr,  T.
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McNamara,  D. D.
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Milicich,  S.
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Miller,  C. A.
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Misra,  S.
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Nichols,  A. R. L.
External Organizations;

/persons/resource/pierdo

Pierdominici,  S.
4.2 Geomechanics and Scientific Drilling, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Rooyakkers,  S. M.
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Schmitt,  D. R.
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Stefansson,  A.
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Stix,  J.
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Stott,  M.
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Thomas,  C.
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Villamor,  P.
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Wang,  P.
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Zarrouk,  S. J.
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CALDERA workshop participants, 
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5025762.pdf
(Verlagsversion), 6MB

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Zitation

Massiot, C., Adam, L., Boyd, E. S., Craig Cary, S., Colman, D. R., Cox, A., Hughes, E., Kilgour, G., Lelli, M., Liotta, D., Lloyd, K. G., Marr, T., McNamara, D. D., Milicich, S., Miller, C. A., Misra, S., Nichols, A. R. L., Pierdominici, S., Rooyakkers, S. M., Schmitt, D. R., Stefansson, A., Stix, J., Stott, M., Thomas, C., Villamor, P., Wang, P., Zarrouk, S. J., CALDERA workshop participants (2024): CALDERA: A scientific drilling concept to unravel Connections Among Life, geo-Dynamics and Eruptions in a Rifting Arc caldera, Okataina Volcanic Centre, Aotearoa New Zealand. - Scientific Drilling: Geophysics, Geochemistry, and Technology, 33, 67-88.
https://doi.org/10.5194/sd-33-67-2024


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025762
Zusammenfassung
Silicic caldera volcanoes present major volcanic and seismic hazards but also host dynamic hydrothermal and groundwater systems and a rich but largely unexplored subsurface biosphere. Many of these volcanoes are hosted in rift settings. The intricate connections and feedbacks among magmatism, rifting, hydrothermal processes, and the biosphere in these complex systems remain poorly understood, necessitating subsurface joint observations that are only enabled by scientific drilling. The CALDERA (Connections Among Life, geo-Dynamics and Eruptions in a Rifting Arc caldera) project workshop funded by the International Continental Scientific Drilling Program (ICDP) gathered multi-disciplinary international experts in January 2023 to advance planning of a scientific drilling project within one of these dynamic, rift-hosted calderas, the Okataina Volcanic Centre (OVC), Aotearoa New Zealand. The OVC's high eruption rate, frequent unrest events and earthquake swarms, location in a densely faulted rapidly extending rift, abundant groundwater–geothermal fluid circulations, and diverse surface hot spring microbiota make it an ideal location for exploring a connected geo-hydro-biosphere via scientific drilling and developing a test bed for novel volcano monitoring approaches. Drilling configurations with at least two boreholes (∼ 200 and ∼ 1000–1500 m deep) were favoured to achieve the multi-disciplinary objectives of the CALDERA project. Decadal monitoring including biosphere activity and composition has the potential to evaluate the response of the hydro-bio system to volcano-tectonic activity. In addition to the OVC caldera-scale datasets already available, site surveys will be conducted to select the best drilling locations. The CALDERA project at the OVC would provide, for the first time, an understanding of volcanic–tectonic–hydrological–biological connections in a caldera–rift system and a baseline for global comparisons with other volcanoes, rifts, and hydrothermal systems. CALDERA would serve as an unprecedented model system to understand how and how quickly the subsurface biosphere responds to geologic activities. Discoveries will improve assessment of volcanic and seismic hazards, guide the sustainable management and/or conservation of groundwater and geothermal resources and microbial ecosystems, and provide a forum for interweaving mātauranga Māori and Western knowledge systems.