{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:08:11Z","timestamp":1760144891955,"version":"build-2065373602"},"reference-count":140,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2024,5,30]],"date-time":"2024-05-30T00:00:00Z","timestamp":1717027200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia (FCT)","doi-asserted-by":"publisher","award":["SFRH\/BD\/115324\/2016","UIDB\/04683\/2020","UIDB\/00073\/2020"],"award-info":[{"award-number":["SFRH\/BD\/115324\/2016","UIDB\/04683\/2020","UIDB\/00073\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"name":"national funding awarded by FCT\u2014Foundation for Science and Technology","award":["SFRH\/BD\/115324\/2016","UIDB\/04683\/2020","UIDB\/00073\/2020"],"award-info":[{"award-number":["SFRH\/BD\/115324\/2016","UIDB\/04683\/2020","UIDB\/00073\/2020"]}]},{"name":"Rui Teixeira by the Portuguese Foundation for Science and Technology (FCT)","award":["SFRH\/BD\/115324\/2016","UIDB\/04683\/2020","UIDB\/00073\/2020"],"award-info":[{"award-number":["SFRH\/BD\/115324\/2016","UIDB\/04683\/2020","UIDB\/00073\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Minerals"],"abstract":"<jats:p>Freixo de Num\u00e3o (FNG) and Capinha (CG) granites are prominent intrusions in the Douro Group (northern Central Iberian Zone, CIZ) and Beiras Supergroup (southern CIZ) metasediments, respectively. U-Pb dating revealed crystallization ages of 306 \u00b1 2 Ma for FNG and 301 \u00b1 3 Ma for CG, whereas Lu\u2013Hf systematics has shown \u025bHft values ranging from \u22124.5 to +0.6 and from \u22125.5 to +0.3 in FNG and CG autocrysts, respectively, suggesting that they originate from heterogeneous crustal anatectic melts, but a direct mantle-derived material contribution can also be considered. The isotopic data of inherited zircon cores of both granites, with \u025bHft values ranging from \u221216.8 to +8.4 in FNG, and from \u221219.4 to +10.1 in CG, are compatible with a derivation from heterogeneous Neoproterozoic metasedimentary sources, consisting of juvenile and recycled crustal materials, comparable to those of the wall rocks. However, the less evolved initial 176Hf\/177Hf signature of magmatic zircons of both granites requires more immature metasediments\/juvenile materials as main sources for the parental magmas. In fact, for FNG, the high Sr and Ba whole-rock content, and the upper Cambrian inheritance highlight the involvement of a metaigneous protolith in its genesis.<\/jats:p>","DOI":"10.3390\/min14060573","type":"journal-article","created":{"date-parts":[[2024,5,30]],"date-time":"2024-05-30T10:42:34Z","timestamp":1717065754000},"page":"573","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Zircon U\u2013Pb Dating and Lu\u2013Hf Isotopic Composition of Some Granite Intrusions in Northern and Central Portugal: Constraints on the Emplacement Age and Nature of the Source Rocks"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4703-9645","authenticated-orcid":false,"given":"Ana","family":"Gon\u00e7alves","sequence":"first","affiliation":[{"name":"Instituto de Ci\u00eancias da Terra (ICT), Polo da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0884-2600","authenticated-orcid":false,"given":"Rui","family":"Teixeira","sequence":"additional","affiliation":[{"name":"Department of Geology, University of Tr\u00e1s-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal"},{"name":"Geosciences Center, University of Coimbra, 3004-531 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1884-7440","authenticated-orcid":false,"given":"Helena","family":"Sant\u2019Ovaia","sequence":"additional","affiliation":[{"name":"Instituto de Ci\u00eancias da Terra (ICT), Polo da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal"},{"name":"Departamento de Geoci\u00eancias, Ambiente e Ordenamento do Territ\u00f3rio, Faculdade de Ci\u00eancias, Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8960-7228","authenticated-orcid":false,"given":"Fernando","family":"Noronha","sequence":"additional","affiliation":[{"name":"Instituto de Ci\u00eancias da Terra (ICT), Polo da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal"},{"name":"Departamento de Geoci\u00eancias, Ambiente e Ordenamento do Territ\u00f3rio, Faculdade de Ci\u00eancias, Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2024,5,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"349","DOI":"10.1016\/B0-08-043751-6\/03027-9","article-title":"Granitic Perspectives on the Generation and Secular Evolution of the Continental Crust","volume":"3","author":"Kemp","year":"2003","journal-title":"Treatise Geochem."},{"key":"ref_2","unstructured":"Brown, M., and Rushmer, T. 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