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A demonstration of ...
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Lindgren, Paula
(författare)
A demonstration of an affinity between pyrite and organic matter in a hydrothermal setting
- Artikel/kapitelEngelska2011
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2011-02-07
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Springer Science and Business Media LLC,2011
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printrdacarrier
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LIBRIS-ID:oai:DiVA.org:su-61756
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-61756URI
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https://doi.org/10.1186/1467-4866-12-3DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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One of the key-principles of the iron-sulphur world theory is to bring organic molecules close enough to interact with each other, using the surface of pyrite as a substrate in a hydrothermal setting. The present paper explores the relationship of pyrite and organic matter in a hydrothermal setting from the geological record; in hydrothermal calcite veins from Carboniferous limestones in central Ireland. Here, the organic matter is accumulated as coatings around, and through, pyrite grains. Most of the pyrite grains are euhedral-subhedral crystals, ranging in size from ca 0.1-0.5 mm in diameter, and they are scattered throughout the matrix of the vein calcite. The organic matter was deposited from a hydrothermal fluid at a temperature of at least 200 degrees C, and gives a Raman signature of disordered carbon. This study points to an example from a hydrothermal setting in the geological record, demonstrating that pyrite can have a high potential for the concentration and accumulation of organic materials.
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Parnell, John
(författare)
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Holm, NilsStockholms universitet,Institutionen för geologiska vetenskaper(Swepub:su)nholm
(författare)
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Broman, CurtStockholms universitet,Institutionen för geologiska vetenskaper
(författare)
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Stockholms universitetInstitutionen för geologiska vetenskaper
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Geochemical Transactions: Springer Science and Business Media LLC12, s. 3-1467-4866
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