Details
| Original language | English |
|---|---|
| Article number | 00008 |
| Journal | E3S Web of Conferences |
| Volume | 54 |
| Publication status | Published - 17 Sept 2018 |
| Event | 25th Salt Water Intrusion Meeting, SWIM 2018 - Gdansk, Poland Duration: 17 Jun 2018 → 22 Jun 2018 |
Abstract
Groundwater flow beneath the oceans plays an important role for cooling the earth's crust and geochemical cycles, yet it remains an understudied subject in hydrogeology. This contribution focuses on the circulation of seawater through basalt covered by deep-sea sediments in the equatorial northeast Pacific Ocean. Numerical model simulations are used to infer the factors controlling the flow patterns that develop between basalt outcrops. The energy to drive the flow is derived from the crustal heat flux. It is found that the sediment thickness plays a key role in determining the development of hydrothermal siphons, i.e. the flow between two adjacent seamounts where one acts as a recharge point and the other as a discharge point for seawater. Amongst the various factors tested, the outcrop width was an important factor as well.
ASJC Scopus subject areas
- Environmental Science(all)
- General Environmental Science
- Energy(all)
- General Energy
- Earth and Planetary Sciences(all)
- General Earth and Planetary Sciences
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In: E3S Web of Conferences, Vol. 54, 00008, 17.09.2018.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - It’s hydrogeology but not as we know it: Sub seafloor groundwater flow driven by thermal gradients
AU - Desens, A.
AU - Post, V. E.A.
AU - Houben, G. J.
AU - Kuhn, T.
AU - Walther, M.
AU - Graf, Thomas
PY - 2018/9/17
Y1 - 2018/9/17
N2 - Groundwater flow beneath the oceans plays an important role for cooling the earth's crust and geochemical cycles, yet it remains an understudied subject in hydrogeology. This contribution focuses on the circulation of seawater through basalt covered by deep-sea sediments in the equatorial northeast Pacific Ocean. Numerical model simulations are used to infer the factors controlling the flow patterns that develop between basalt outcrops. The energy to drive the flow is derived from the crustal heat flux. It is found that the sediment thickness plays a key role in determining the development of hydrothermal siphons, i.e. the flow between two adjacent seamounts where one acts as a recharge point and the other as a discharge point for seawater. Amongst the various factors tested, the outcrop width was an important factor as well.
AB - Groundwater flow beneath the oceans plays an important role for cooling the earth's crust and geochemical cycles, yet it remains an understudied subject in hydrogeology. This contribution focuses on the circulation of seawater through basalt covered by deep-sea sediments in the equatorial northeast Pacific Ocean. Numerical model simulations are used to infer the factors controlling the flow patterns that develop between basalt outcrops. The energy to drive the flow is derived from the crustal heat flux. It is found that the sediment thickness plays a key role in determining the development of hydrothermal siphons, i.e. the flow between two adjacent seamounts where one acts as a recharge point and the other as a discharge point for seawater. Amongst the various factors tested, the outcrop width was an important factor as well.
UR - http://www.scopus.com/inward/record.url?scp=85055430119&partnerID=8YFLogxK
U2 - 10.1051/e3sconf/20185400008
DO - 10.1051/e3sconf/20185400008
M3 - Conference article
AN - SCOPUS:85055430119
VL - 54
JO - E3S Web of Conferences
JF - E3S Web of Conferences
M1 - 00008
T2 - 25th Salt Water Intrusion Meeting, SWIM 2018
Y2 - 17 June 2018 through 22 June 2018
ER -