The elemental sulfur ore deposit of Salmerón: Las Minas de Hellín basin (Late Miocene, SE Spain)

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dc.contributor.authorGarcía-Veigas, Jen_AU
dc.contributor.authorGimeno, Den_AU
dc.contributor.authorPineda, Ven_AU
dc.contributor.authorCendón, DIen_AU
dc.contributor.authorSánchez-Román, Men_AU
dc.contributor.authorArtiaga, Den_AU
dc.contributor.authorBembibre, Gen_AU
dc.date.accessioned2024-02-29T23:29:38Zen_AU
dc.date.available2024-02-29T23:29:38Zen_AU
dc.date.issued2022-06en_AU
dc.date.statistics2024-03-01en_AU
dc.description.abstractStrata-bound elemental sulfur deposits occur in different circum-Mediterranean Miocene sedimentary successions containing evaporites and high amounts of organic matter. It is widely known that bacterial sulfate reduction processes are the triggering mechanisms involved in the origin of hydrogen sulfide and the subsequent native sulfur. However, in most of these sedimentary successions, there is controversy over whether elemental sulfur formed in the basin floor, as the same time as the sediments (biosyngenetic), or later, during diagenesis (bioepigenetic). Las Minas de Hellín basin, in the SE Spain, contains one of the largest elemental sulfur deposits in Europe. Based on data recovered from mining company (1903 -1960) and a borehole campaign performed by MINERSA between 1987 and 1988, two native sulfur ore bodies are recognized. The upper sulfur body is hosted by carbonates and diatom-rich levels, whereas the lower sulfur body, only exploited in underground mines now closed, is hosted by gypsum. This work shows a petrological and geochemical study of core samples from the upper sulfur body in the Salmerón area (Murcia), 500 m west of the widely exploited area of Las Minas de Hellín (Albacete). In Salmerón, elemental sulfur occurs as pseudomorphs after primary sedimentary gypsum as well as filling fractures and bed joints. The elemental sulfur replacement is also related to calcification and silicification of the sedimentary biomediated dolomite. The mineralization is considered bioepigenetic formed during early diagenesis. Contribution from hydrothermal waters circulating through adjacent faults are not ruled out. ©2022 CSIC. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) Licenseen_AU
dc.description.sponsorshipThis study was provided by the Spanish Government Projects CGL-2016-79458 and PID2020-118999GB-I00, and by the Catalonian Government Action 21-SGR-829. The authors are indebted to the Instituto de Estudios Albacetenses providing grant funds (1994) which allowed the recovery of borehole cores and lost documents of the ancient mining company.en_AU
dc.identifier.citationVeigas, F. J., Gimeno, D., Pineda González, V., Cendón, D., Sánchez-Román, M., Artiaga Torres, D., & Bembibre, G. (2022). The elemental sulfur ore deposit of Salmerón: Las Minas de Hellín basin (Late Miocene, SE Spain). Boletín Geológico y Minero, 133, 135-161. doi:10.21701/bolgeomin/133.2/006en_AU
dc.identifier.issn0366-0176en_AU
dc.identifier.issn2253-6167en_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleBoletín Geológico y Mineroen_AU
dc.identifier.pagination135-161en_AU
dc.identifier.urihttp://dx.doi.org/10.21701/bolgeomin/133.2/006en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15509en_AU
dc.identifier.volume133en_AU
dc.language.isoenen_AU
dc.publisherInstituto Geologico y Minero de Espanaen_AU
dc.subjectSulfur oresen_AU
dc.subjectDepositsen_AU
dc.subjectOresen_AU
dc.subjectSpainen_AU
dc.subjectSedimentsen_AU
dc.subjectEvaporitesen_AU
dc.subjectOrganic matteren_AU
dc.subjectDataen_AU
dc.subjectBoreholesen_AU
dc.subjectGeochemical surveysen_AU
dc.titleThe elemental sulfur ore deposit of Salmerón: Las Minas de Hellín basin (Late Miocene, SE Spain)en_AU
dc.typeJournal Articleen_AU
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