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Natural arsenic and its distribution in global geothermal systems

conference contribution
posted on 2023-11-06, 02:36 authored by J Bundschuh, Indika Herath, M Vithanage
This paper highlights the occurrence and distribution of geothermal As worldwide and its mobilization in geothermal fluids focusing different geological settings and processes. The mobilization of As from rocks and mineral phases into geothermal fluids depends on existing As sources, geochemical conditions and microbiological activity. In deep geothermal reservoirs, As mobilization is predominantly occurred from As-bearing pyrite at low temperatures (150–250°C), whereas at higher temperatures (>250°C), from arsenopyrite. The highest As concentrations were found in the volcanic geothermal systems of Los Humeros (Mexico) with up to 162,000 μg/L. Hence, updated and novel information on the present topic would be very much beneficial in order to understand the role of geothermal As in the genesis of As-rich ground- and surface water resources which are used for human consumption worldwide.

History

Pagination

29-30

Location

Stockholm, Sweden

Start date

2016-06-19

End date

2016-06-23

ISSN

2154-6568

eISSN

2372-3599

ISBN-13

9781138029415

Language

eng

Title of proceedings

Arsenic Research and Global Sustainability - Proceedings of the 6th International Congress on Arsenic in the Environment, AS 2016

Event

Arsenic Research and Global Sustainability . Conference. (2016 : 6th : Stockholm, Sweden)

Publisher

CRC Press

Place of publication

London, Eng.

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