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dc.contributor.authorUrbieta Galarraga, Jule
dc.contributor.authorGarcía de Madinabeitia Martínez de Lizarduy, Sonia ORCID
dc.contributor.authorBeranoaguirre de Miguel, Aratz ORCID
dc.contributor.authorGil Ibarguchi, José Ignacio
dc.date.accessioned2022-09-08T10:05:58Z
dc.date.available2022-09-08T10:05:58Z
dc.date.issued2022
dc.identifier.citationEkaia 42 : 73-86 (2022)
dc.identifier.issn0214-9001
dc.identifier.urihttp://hdl.handle.net/10810/57548
dc.description.abstractCala mine is located in the southwest of the Iberian Massif, in the Ossa-Morena Zone (OMZ). Due to the complexity of its mineralisation, there has been much debate in recent years but, according to recent studies, it is interpreted that part of the mineralisation is related to a calcic skarn that outcrops nearby. In this work, garnets from this skarn have been dated using the U-Pb geochronology by LA-ICP-MS, and the obtained age is 335 ± 1 Ma. Calcic garnets (Gros52-59Andr40-44) show homogeneous major elements distribution. A weak chemical zonation can be observed in trace elements and REE, more evident in trivalent elements. This chemical homogeneity has been related to a stable system, where P-T conditions have remained quite stable.; Cala meategia Ossa-Morena Zonaldean (OMZ) kokatzen da, Iberiar Mazizoaren hego-mendebaldean. Hango mineralizazioa nahiko konplexua denez, az- ken urteotan asko eztabaidatu da horren inguruan, baina berriki egin diren ikerketa- lanen arabera, mineralizazioaren zati bat bertan azaleratzen den skarn kaltziko bate- kin erlazionatuta dagoela interpretatu da. Lan honetan skarn-eko granateak datatu dira U-Pb sistema eta LA-ICP-MS metodoaren bidez. Mineral horiek primarioak direnez, metasomatismoa datatzea ere posible izan da skarna bera ere datatuz. Lortutako emai- tzen arabera skarna duela 335 ± 1 Ma sortu zela ondorioztatu da. Granate kaltzikoen (Gros52-59Andr40-44) konposizio kimikoa nahiko homogeneoa da, batez ere elementu nagusiak aztertzean, eta aztarna elementuen zein REE-en kontzentrazioak zonazio oso ahula erakusten dute, batik bat elementu tribalenteetan. Honenbestez, granate hauen so- rreran sistemako P-T baldintzak nahiko konstante mantendu zirela ondorioztatu da.
dc.language.isoeus
dc.publisherServicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.titleCalako skarn-a: ezaugarri geokimikoak eta U-Pb datazioak
dc.typeinfo:eu-repo/semantics/article
dc.rights.holder© 2022 UPV/EHU Attribution-NonCommercial-ShareAlike 4.0 International
dc.identifier.doi10.1387/ekaia.22952


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© 2022 UPV/EHU Attribution-NonCommercial-ShareAlike 4.0 International
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