Chemical evolution of the Mt. Hekla, Iceland, groundwaters: A natural analogue for CO2 sequestration in basaltic rocks

AbstractStorage of CO2 as solid Ca, Mg, and Fe carbonates in basaltic rocks may provide a long-lasting solution for reduction of industrial CO2 emissions. Here, we report on the underground stratigraphy of the chemical composition and crystallinity of rocks and their alteration state at a targeted field site for injection of CO2-charged waters, the Hellisheidi area in SW Iceland.

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Petrogenesis of carbonated meta-ultramafic lenses from the Neoproterozoic Heiani ophiolite, South Eastern Desert, Egypt: A natural analogue to CO2 sequestration

Journal of African Earth Sciences ◽

10.1016/j.jafrearsci.2014.11.002 ◽

2015 ◽

Vol 102 ◽

pp. 102-115 ◽

Cited By ~ 2

Author(s):

Hisham A. Gahlan ◽

Shoji Arai ◽

Sattam A. Almadani

Keyword(s):

Co2 Sequestration ◽

Eastern Desert ◽

Natural Analogue ◽

South Eastern

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CO2 sequestration in basaltic rocks in Iceland: Development of a piston-type downhole sampler for CO2 rich fluids and tracers

Energy Procedia ◽

10.1016/j.egypro.2011.02.278 ◽

2011 ◽

Vol 4 ◽

pp. 3510-3517 ◽

Cited By ~ 10

Author(s):

H.A. Alfredsson ◽

D. Wolff-Boenisch ◽

A. Stefánsson

Keyword(s):

Co2 Sequestration ◽

Basaltic Rocks

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Aquifer characterization with tracer test technique; permanent CO2 sequestration into basalt, SW Iceland

Mineralogical Magazine ◽

10.1180/minmag.2008.072.1.121 ◽

2008 ◽

Vol 72 (1) ◽

pp. 121-125 ◽

Cited By ~ 23

Author(s):

M. Rezvani Khalilabad ◽

G. Axelsson ◽

S. R. Gislason

Keyword(s):

Co2 Sequestration ◽

Solid Phase ◽

Thick Layer ◽

Tracer Test ◽

Aquifer Characterization ◽

Lava Field ◽

Flow Paths ◽

Test Technique ◽

Basaltic Rocks ◽

Reactive Surface Area

AbstractMineral sequestration is among several promising methods of CO2 reduction. It involves incorporation of CO2 into a solid phase via precipitation of carbonate minerals. A prerequisite to carbonate precipitation is the availability of aqueous metal cations and a network of porous media for fluid flow and water-rock interactions. The Hellisheidi-Threngsli lava field in SW Iceland comprises ideal conditions for studying the feasibility of permanent CO2 storage as minerals in basaltic rocks. In this paper we report on a tracer test conducted between two wells at the Hellisheidi-Threngsli site to characterize the physical properties of the main aquifers. The results suggest that most of the water flow between the wells is through an homogenous thick layer with high tortuosity along flow paths and a high reactive surface area for water-rock interactions.

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