TY - JOUR

T1 - Exploring and Modeling the Magma–Hydrothermal Regime

AU - Eichelberger, John

AU - Kiryukhin, Alexey

AU - Mollo, Silvio

AU - Tsuchiya, Noriyoshi

AU - Villeneuve, Marlène

PY - 2020/6/18

Y1 - 2020/6/18

N2 - This special issue comprises 12 papers from authors in 10 countries with new insights on the close coupling between magma as an energy and fluid source with hydrothermal systems as a primary control of magmatic behavior. Data and interpretation are provided on the rise of magma through a hydrothermal system, the relative timing of magmatic and hydrothermal events, the temporal evolution of supercritical aqueous fluids associated with ore formation, the magmatic and meteoric contributions of water to the systems, the big picture for the highly active Krafla Caldera, Iceland, as well as the implications of results from drilling at Krafla concerning the magma–hydrothermal boundary. Some of the more provocative concepts are that magma can intrude a hydrothermal system silently, that coplanar and coeval seismic events signal “magma fracking” beneath active volcanoes, that intrusive accumulations may far outlast volcanism, that arid climate favors formation of large magma chambers, and that even relatively dry rhyolite magma can convect rapidly and so lack a crystallizing mush roof. A shared theme is that hydrothermal and magmatic reservoirs need to be treated as a single system.

AB - This special issue comprises 12 papers from authors in 10 countries with new insights on the close coupling between magma as an energy and fluid source with hydrothermal systems as a primary control of magmatic behavior. Data and interpretation are provided on the rise of magma through a hydrothermal system, the relative timing of magmatic and hydrothermal events, the temporal evolution of supercritical aqueous fluids associated with ore formation, the magmatic and meteoric contributions of water to the systems, the big picture for the highly active Krafla Caldera, Iceland, as well as the implications of results from drilling at Krafla concerning the magma–hydrothermal boundary. Some of the more provocative concepts are that magma can intrude a hydrothermal system silently, that coplanar and coeval seismic events signal “magma fracking” beneath active volcanoes, that intrusive accumulations may far outlast volcanism, that arid climate favors formation of large magma chambers, and that even relatively dry rhyolite magma can convect rapidly and so lack a crystallizing mush roof. A shared theme is that hydrothermal and magmatic reservoirs need to be treated as a single system.

KW - Drilling

KW - Gas and fluid geochemistry

KW - Geophysical imaging

KW - Geothermal energy

KW - Heat transport

KW - Magma convection

KW - Magma–hydrothermal

KW - Phreatic eruption

KW - Volcano monitoring

KW - Volcanology

UR - http://www.scopus.com/inward/record.url?scp=85086669662&partnerID=8YFLogxK

U2 - 10.3390/geosciences10060234

DO - 10.3390/geosciences10060234

M3 - Editorial

AN - SCOPUS:85086669662

VL - 10.2020

JO - Geosciences (Switzerland)

JF - Geosciences (Switzerland)

SN - 2076-3263

IS - 6

M1 - 234

ER -