Petrography and geochemistry of late- to post-Variscan vaugnerite series rocks and calc-alkaline lamprophyres within a cordierite-bearing monzogranite (Sierra Bermeja Pluton, southern Iberian Massif)
DOI:
https://doi.org/10.1344/GeologicaActa2018.16.3.1Keywords:
Calc-alkaline lamprophyre, Vaugnerite series, Redwitzite, Cordierite-bearing granite, Iberian Massif.Abstract
The Sierra Bermeja Pluton (southern Central Iberian Zone, Iberian Massif) is a late-Variscan intrusive constituted by cordierite-bearing peraluminous monzogranites. Detailed field mapping has allowed to disclose the presence of several NE–SW trending longitudinal composite bodies, formed by either aphanitic or phaneritic mesocratic rocks. According to their petrography and geochemistry these rocks are categorized as calc-alkaline lamprophyres and vaugnerite series rocks. Their primary mineralogy is characterized by variable amounts of plagioclase, amphibole, clinopyroxene, biotite, K-feldspar, quartz and apatite. Broadly, they show low SiO2 content (49–56wt.%), and high MgO+FeOt (10–17wt.%), K2O (3–5wt.%), Ba (963–2095ppm), Sr (401–1149ppm) and Cr (87–330ppm) contents. Field scale observations suggest that vaugneritic rocks and lamprophyres would constitute two independent magma pulses. Vaugneritic dioritoids intruded as syn-plutonic dykes, whereas lamprophyres were emplaced after the almost complete consolidation of the host monzogranites. In this way, vaugnerite series rocks would be an evidence for the contemporaneity of crustal- and mantle-melting processes during a late-Variscan stage, while lamprophyres would represent the ending of this stage.References
Alonso Olazabal, A., 1999. Petrology, magnetic fabric and emplacement in a strike-slip regime of a zoned peraluminous granite: the Campanario-La Haba pluton, Spain. In: Castro, A., Fernández, C., Vigneresse, J.L. (eds.). Understanding Granites: Integrating New and Classical Techniques. London, Geological Society, 177-190. https://doi.org/10.1144/GSL.SP.1999.168.01.12
Alonso Olazabal, A., 2001. El plutón de Campanario-La Haba: caracterización petrológica y fábrica magnética. PhD Thesis.
University of the Basque Country, 323pp.
Barbero, L., 1992. Tres tipos de rocas gabroideas en el complejo de Toledo. Cadernos do Laboratorio Xeolóxico de Laxe, 17,
-186.
Barbero, L., Villaseca, C., Andonaegui, P., 1990. On the origin of the gabbro-tonalite-monzogranite association from Toledo area (Hercynian Iberian Belt). Schweizerische Mineralogische und Petrografische Mitterlung, 70(2), 207-219. http://doi.org/10.5169/seals-53614
Bea, F., 2004. La naturaleza del magmatismo de la Zona Centro Ibérica: consideraciones generales y ensayo de correlación.
In: Vera, J.A. (ed.). Geología de España. Madrid, Sociedad Geológica de España-Instituto Geológico y Minero de España (SGE-IGME), 128-133.
Bea, F., Montero, P., Molina, J.F., 1999. Mafic Precursors, Peraluminous Granitoids, and Late Lamprophyres in the Ávila Batholith: A Model for the Generation of Variscan Batholiths in Iberia. The Journal of Geology, 107(4), 399-419. https://doi.org/10.1086/314356
Bea, F., Montero, P.G., Gonzalez-Lodeiro, F., Talavera, C., Molina, J.F., Scarrow, J.H., Whitehouse, M.J., Zinger, T., 2006. Zircon thermometry and U–Pb ion-microprobe dating of the gabbros and associated migmatites of the Variscan Toledo Anatectic Complex, Central Iberia. Journal of the Geological Society, 163, 847-855. https://doi.org/10.1144/0016-76492005-143
Buda, G., Dobosi, G., 2004. Lamprophyre-derived high-K mafic enclaves in Variscan granitoids from the Mecsek Mts. (South Hungary). Neues Jahrbuch für MineralogieAbhandlungen: Journal of Mineralogy and Geochemistry, 180(2), 115-147. https://doi.org/10.1127/0077-7757/2004/0180-0115
Buzzi, L., Gaggero, L., Grozdanov, L.,Yanev, S., Slejko, F., 2010. High-Mg potassic rocks in the Balkan segment of the Variscan belt (Bulgaria): implications for the genesis of orogenic lamproite magmas. Geological Magazine, 147(3), 434-450. https://doi.org/10.1017/S0016756809990550
Carracedo, M., 1991. Contribución al estudio del batolito de Los Pedroches (Córdoba). PhD Thesis. University of the Basque Country, 443pp.
Carracedo, M., Paquette, J.L., Alonso Olazabal, A., Santos Zalduegui, J.F., García de Madinabeitia, S., Tiepolo, M., Gil Ibarguchi, J.I., 2009. U-Pb dating of granodiorite and granite units of the Los Pedroches batholith. Implications for geodynamic models of the southern Central Iberian Zone (Iberian Massif). International Journal of Earth Sciences, 98, 1609-1624. http://dx.doi.org/10.1007/s00531-008-0317-0
Carrington da Costa, J., 1950. Noticia sobre uma carta geologica do Buçaco, de Nery Delgado. Lisboa, Publicación Especial
de la Comision de Servicio Geológico de Portugal, 1-27.
Castro, A., Patiño Douce, A.E., Corretgé, L.G., de la Rosa, J.D., El-Biad, M., El-Hmidi, H., 1999. Origin of peraluminous granites and granodiorites, Iberian massif, Spain: an experimental test of granite petrogenesis. Contributions to Mineralogy and Petrology, 135(2-3), 255-276. https://doi.org/10.1007/s004100050511
Castro, A., Corretgé, L.G., de la Rosa, J., Enrique, P., Martínez, F.J., Pascual, E., Lago, M., Arranz, E., Galé, C., Fernández, C., Donaire, T., López, S., 2002. Paleozoic magmatism. In: Gibbons, W., Moreno, T. (eds.). The Geology of Spain. London, Geological Society, 117-153.
Corretgé, L.G., Ugidos, J.M., Martínez, F.J., 1977. Les series granitiques varisques du secteur centre-occidental espagnol. La Chaine varisque d’Europe Moyenne et Occidentale. Colloque International, Centre National de la Recherche Scientifique, 243, 453-461.
Couzinié, S., Moyen, J.-F., Villaros, A., Paquette, J.-L., Scarrow, J.H., Marignac, C., 2014. Temporal relationships between Mg-K mafic magmatism and catastrophic melting of the Variscan crust in the southern part of Velay Complex (Massif Central, France). Journal of Geosciences, 59, 69-86. https://doi.org/10.3190/jgeosci.155
Couzinié, S., Laurent, O., Moyen, J.-F., Zeh, A., Vézinet, A., Villaros, A., 2015. Mg-K magmatic suites as a tool to scan the composition of the Variscan orogenic mantle, case studies from the French Massif Central. Geologié de la France, The Variscan belt: correlations and plate dynamics-Special meeting of the French & Spanish Geological Societies, 1, 43.
Couzinié, S., Laurent, O., Moyen, J.-F., Zeh, A., Bouilhol, P., Villaros, A., 2016. Post-collisional magmatism: Crustal growth not identified by zircon Hf–O isotopes. Earth and Planetary Science Letters, 456, 182–195. https://doi.org/10.1016/j.epsl.2016.09.033
Deer, W.A., Howie, R.A., Zussman, J., 1962. Rock-Forming Minerals. Vol. 3: Sheet Silicates. London, Longman. 270pp.
Deer, W.A., Howie, R.A., Zussman, J., 1963. Rock-Forming Minerals. Vol. 4: Framework Silicates. London, Longman. 435pp.
Del Olmo Sanz, A., Matia Villarino, G., Olivé Davó, A., Huerta Carmona, J., 1992. Hoja geológica número 752 (Mirandilla). Mapa Geológico de España a Escala 1:50.000. Madrid, Instituto Geológico y Minero de España (IGME). http://info.igme.es/cartografiadigital/geologica/Magna50Hoja.aspx?Id=752
Dias, G., Leterrier, J., 1994. The genesis of felsic-mafic plutonic associations: a Sr and Nd isotopic study of the Hercynian
Braga Granitoid Massif (Northern Portugal). Lithos, 32(3-4), 207-223. https://doi.org/10.1016/0024-4937(94)90040-X
Dias, G., Simões, P.P., Ferreira, N., Leterrier, J., 2002. Mantle and Crustal Sources in the Genesis of Late-Hercynian Granitoids
(NW Portugal): Geochemical and Sr-Nd Isotopic Constraints. Gondwana Research, 5(2), 287-305. https://doi.org/10.1016/
S1342-937X(05)70724-3
Eguiluz, L., Apalategui, O., Carracedo, M., Sarrionandia, F., 2005. La zona de cizalla de Campillo: accidente tectónico a escala
continental en el suroeste del Macizo Ibérico. Geogaceta, 37, 23-26.
Fournet, J., 1837. Geologie lyonnaise. Lyon, De Barret, 744pp.
Galán, G., Corretgé, L.G., Laurent, O., 1997. Low-potassium vaugnerites from Guéret (Massif Central, France). Mafic magma evolution influenced by contemporaneous granitoids. Mineralogy and Petrology, 59(3-4), 165-187. https://doi.org/10.1007/BF01161858
Gallastegui, G., 2005. Petrología del Macizo Granodiorítico de Bayo-Vigo (Provincia de Pontevedra, España). PhD Thesis. University of Oviedo, 414pp.
García de Madinabeitia, S., Santos Zalduegui, J.F., Gil Ibarguchi, J.I., Carracedo, M., 2003. Geocronología del plutón de Campanario-La Haba (Badajoz) a partir del análisis de isótopos de Pb en circones y U-Th-Pbtotal en monacitas. Geogaceta, 34, 27-30.
García de Madinabeitia, S., Sánchez Lorda, M.E., Gil Ibarguchi, J.I., 2008. Simultaneous determination of major to ultratrace
elements in geological samples by fusion-dissolution and inductively coupled plasma mass spectrometry techniques. Analytica Chimica Acta, 625(2), 117-130. http://dx.doi.org/10.1016/j.aca.2008.07.024
Gil Ibarguchi, J.I., 1980. Las vaugneritas de la región de Finisterre (Galicia, NW. España). Probables productos de magmas anatécticos residuales. Cadernos do Laboratorio Xeolóxico de Laxe, 1, 21-32.
Gil Ibarguchi, J.I., 1981. A comparative study of vaugnerites and metabasic rocks from the Finisterre region (NW Spain). Neues Jahrbuch für Mineralogie–Abhandlungen, 143(1), 91-101.
Gil Ibarguchi, J.I., Bowden, P., Whitley, J.E., 1984. Rare Earth Element Distribution in Some Hercynian Granitoids from the Finisterre Region, NW Spain. The Journal of Geology, 92(4), 397-416. https://doi.org/10.1086/628875
González Menéndez, L., 1998. Petrología y geoquímica del batolito granítico de Nisa-Alburquerque (Alto Alentejo, Portugal; Extremadura, España). PhD Thesis. University of Granada, 221pp.
Gonzalo, J.C., 1987. Petrología y estructura del basamento hercínico del área de Mérida (Extremadura Central). PhD Thesis. University of Salamanca, 327pp.
Gutiérrez-Alonso, G., Fernández-Suárez, J., Jeffries, T.E., Johnston, S.T., Pastor-Galán, D., Murphy, J.B., Franco, M.P., Gonzalo, J.C., 2011. Diachronous post-orogenic magmatism within a developing orocline in Iberia, European Variscides. Tectonics, 30(5), TC5008. https://doi.org/10.1029/2010TC002845
Holub, F.V., 1997. Ultrapotassic plutonic rocks of the durbachite series in the Bohemian Massif: Petrology, geochemistry
and petrogenetic interpretation. Sborník Geologických Věd, Ložisková Geologie-Mineralogie, 31, 5-26.
Irvine, T.N., Baragar, W.R.A., 1971. A guide to the chemical classification of the common volcanic rocks. Canadian Journal of Earth Sciences, 8(5), 523-548. https://doi.org/10.1139/e71-055
Janoušek, V., Holub, F.V., 2007. The causal link between HP-HT metamorphism and ultrapotassic magmatism in collisional orogens: case study from the Moldanubian Zone of the Bohemian Massif. Proceedings of the Geologists’ Association, 118, 75-86. https://doi.org/10.1016/S0016-7878(07)80049-6
Janoušek, V., Rogers, G., Bowes, D.R., 1995. Sr-Nd isotopic constraints on the petrogénesis of the Central Bohemian Pluton, Czech Republic. Geologische Rundschau, 84(3), 520-534. https://doi.org/10.1007/BF00284518
Kováříková , P., Siebel, W., Jelínek, E., Štemprok, M., Kachlík, V., Holub, F.V., Blecha, V., 2007. Petrology, geochemistry and
zircon age for redwitzite at Abertamy, NW Bohemian Massif (Czech Republic): tracing the mantle component in Late Variscan intrusions. Chemie der Erde-Geochemistry, 67(2), 151-174. https://doi.org/10.1016/j.chemer.2007.04.002
Kubínová, Š., Faryad, S.W., Verner, K., SchmitzM., Holub, F.V., 2017. Ultrapotassic dykes in the Moldanubian Zone and their significance for understanding of the post-collisional mantle dynamics during Variscan orogeny in the Bohemian Massif. Lithos, 272-273, 205-221. https://doi.org/10.1016/j.lithos.2016.12.007
Larrea, F.J., 1998. Caracterización petrológica y geoquímica del sector oriental del Batolito de Los Pedroches. PhD Thesis. University of the Basque Country, 459pp.
Laurent, O., Couzinié, S., Vanderhaeghe, O., Zeh, A., Moyen, J.-F., Villaros, A., Gardien V., 2015. U-Pb dating of Variscan igneous rocks from the eastern French Massif Central: southward migration of coeval crust- and mantle-melting witnesses late-orogenic slab retreat. Geologié de la France, The Variscan belt: correlations and plate dynamics-Special meeting of the French & Spanish Geological Societies, 1, 82.
Le Maitre, R.W., Streckeisen, A., Zanettin, B., Le Bas, M.J., Bonin, B., Bateman, P., Bellieni, G., Dudek, A., Efremova, S., Keller, J., Lameyre, J., Sabine, P.A., Schmid, R., Sorensen, H., Woolley, A.R., 2002. Igneous rocks: a classification and glossary of terms. Cambridge, Cambridge University Press, 236pp. https://doi.org/10.2113/gscanmin.40.6.1737
Leake, B.E., Woolley, A.R., Arps, C.E.S., Birch, W.D., Gilbert, M.C., Grice, J.D., Hawthorne, F.C., Kato, A., Kisch, H.J., Krivovichev, V.G., Linthout, K., Laird, J., Mandarino, J.A., Maresch, W.V., Nickel, E.H., Rock, N.M.S., Schumacher, J.C., Smith, D.C., Stephenson, N.C.N., Ungaretti, L., Whittaker, E.J.W., Guo, Y., 1997. Nomenclature of amphiboles: Report of the subcommittee on amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist, 35, 219-246.
López-Moro, F.-J., López-Plaza, M., 2004. Monzonitic series from the Variscan Tormes Dome (Central Iberian Zone): petrogenetic evolution from monzogabbro to granite magmas. Lithos, 72(1-2), 19-44. https://doi.org/10.1016/j.lithos.2003.08.002
López-Moro, F.-J., Romer, R.L., López-Plaza, M., González Sánchez, M., 2017. Zircon and allanite U-Pb ID-TIMS ages of vaugnerites from the Calzadilla pluton, Salamanca (Spain): dating mantle-derived magmatism and postmagmatic subsolidus overprint. Geologica Acta, 15(4), 395-408. http://dx.doi.org/10.1344/GeologicaActa2017.15.4.9
López Plaza, M., López Moro, F.J., Gonzalo Corral, J.C., Carnicero, A., 1999. Asociaciones de rocas plutónicas básicas e intermedias de afinidad calcoalcalina y shoshonítica y granitoides relacionados en el Domo Hercínico del Tormes (Salamanca y Zamora). Boletín de la Sociedad Española de Mineralogía, 22, 211-234.
López Sopena, F., Matia Villarino, G., del Olmo, A., Ortega Ruiz, I., 1990. Hoja geológica número 753 (Miajadas). Mapa Geológico de España a Escala 1:50.000. Madrid, Instituto Geológico y Minero de España (IGME). http://info.igme.es/cartografiadigital/geologica/Magna50Hoja.aspx?id=753
Michon, G., 1987. Les vaugnérites de l’Est du Massif central français: apport de l’analyse statistique multivariée à l’étude géochimique des éléments majeurs. Bulletin de la Société Géologique de France, 8, 591-600.
Middlemost, E.A.K., 1994. Naming materials in the magma/igneous rock system. Earth-Science Reviews, 37(3-4), 215-224. https://doi.org/10.1016/0012-8252(94)90029-9
Montel, J.M., 1988. First discovery of an orthopyroxene bearing vaugnerite: petrography, geochemistry, and implications on the genesis of vaugnerites. Comptes Rendus de l’Académie des Sciences de Paris, 306, 985-990.
Montel, J.M., Weisbrod, A., 1986. Charactéristiques and évolution of ‘vaugnéritic magmas’ an analytical and experimental approach, on the exemple of Cévennes Médianes (French Massif Central). Bulletin de Minéralogie, 109, 557-587.
Montero, P., Bea, F., Zinger, T.F., 2004. Edad 207Pb/206Pb en cristal único de circón de las rocas máficas y ultramáficas del sector de Gredos, Batolito de Ávila (Iberia Central). Revista de la Sociedad Geologica de España, 17, 157-165.
Morimoto, N., 1988. Nomenclature of Pyroxenes. Mineralogy and Petrology, 39(1), 55-76. https://doi.org/10.1007/BF01226262
Moyen, J.-F., Laurent, O., Chelle-Michou, C., Couzinié, S., Vanderhaeghe, O., Zeh, A., Villaros, A., Gardien, V., 2017. Lithos, 277, 154-177. https://doi.org/10.1016/j.lithos.2016.09.018
Orejana, D., Villaseca, C., Billström, K., Paterson, B.A., 2008. Petrogenesis of Permian alkaline lamprophyres and diabases from the Spanish Central System and their geodynamic context within western Europe. Contributions to Mineralogy and Petrology, 156, 477-500. https://doi.org/10.1007/s00410-008-0297-x
Palacios, T., Eguíluz, L., Apalategui, O., Jensen, S., MartínezTorres, L.M., Carracedo, M., Gil Ibarguchi, J.-I., Sarrionandia, F., Martí, M., 2013. Mapa Geológico de Extremadura 1/350.000 y su memoria. Bilbao, Servicio Editorial de la UPV-EHU, 68x98cm, 222pp.
Pitcher, W.S., 1997. The nature and origin of granite. London, Springer Netherlands, 387pp. https://doi.org/10.1007/978-
-011-5832-9
Rock, N.M.S., 1991. Lamprophyres. Boston, MA, Springer US, 285pp. https://doi.org/10.1007/978-1-4757-0929-2
Rodríguez Alonso, M.D., Díez Balda, M.A., Perejón, A., Pieren, A., Liñan, E., López Díaz, F., Moreno, F., Gámez Vintaned, J.A., González Lodeiro, F., Martínez Poyatos, D., Vegas, R., 2004. La secuencia litoestratigráfica del NeoproterozoicoCámbrico Inferior. In: Vera, J.A. (ed.). Geología de España. Madrid, Sociedad Geológica de España-Instituto Geológico y Minero de España (SGE-IGME), 78-81.
Rodríguez, J., Gil Ibarguchi, J.I., Paquette, J.L., 2007. Sincronía del magmatismo Varisco en el Macizo Ibérico: nuevas edades U-Pb en granitoides de la región de Finisterre (La Coruña, España). XV Semana – VI Congreso Ibérico de Geoquímica, Vila Real, Portugal, DVD-ROM (ISBN: 978-972-669-805-0), 146-149
Sabatier, H., 1980. Vaugérites et granites: une association particulière de roches grenues acides et basiques. Bulletin de Minéralogie, 103, 507-522.
Sabatier, H., 1991. Vaugnerites: special lamprophyre-derived mafic enclaves in some Hercynian granites from Western and Central Europe. In: Didier, J., Barbarin, B. (eds.). Enclaves and Granite Petrology. Developments in Petrology, Amsterdam, Elsevier, 63-81.
Sarrionandia, F., Carracedo, M., Eguíluz, L., Apalategui, O., 2004. Potencial ornamental del plutón de Sierra Bermeja (Badajoz): evaluación de su canterabilidad. Geogaceta, 35, 103-106.
Sauer, A., 1893. Der Granitit von Durbach im nordlichen Schwarzwald un seine Grenzfacies von Glimmersyenit (Durbachit). Mitteilung der Badischen Geologischen Landesanstalt, 2, 233-276.
Scarrow, J.H., Bea, F., Montero, P., Molina, J.F., Vaughan, A.P.M., 2006. A precise late Permian 40Ar/39Ar age for Central Iberian camptonitic lamprohyres. Geologica Acta, 4, 451-459. http://dx.doi.org/10.1344/105.000000346
Scarrow, J.H., Bea, F., Montero, P., Molina, J.F., 2008. Shoshonites, vaugnerites and potassic lamprophyres: similarities and differences between ‘ultra’-high-K rocks. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 99, 159-175. https://doi.org/10.1017/S1755691009008032
Scarrow, J.H., Molina, J.F., Bea, F., Montero, P., 2009. Withinplate calc-alkaline rocks: Insights from alkaline mafic magma–peraluminous crustal melt hybrid appinites of the Central Iberian Variscan continental collision. Lithos, 110(1-4), 50-64. https://doi.org/10.1016/j.lithos.2008.12.007
Scarrow, J.H., Molina, J.F., Bea, F., Montero, P., Vaughan, A.P.M., 2011. Lamprophyre dikes as tectonic markers of late orogenic transtension timing and kinematics: A case study from the Central Iberian Zone. Tectonics, 30(4), TC4007. https://doi.org/10.1029/2010TC002755
Siebel, W., Chen, F., Satir, M., 2003. Late-Variscan magmatism revisited: New implications from Pb-evaporation zircon ages on the emplacement of redwitzites and granites in NE Bavaria. International Journal of Earth Sciences, 92(1), 36-53. https://doi.org/10.1007/s00531-002-0305-8
Solá, A.R., Williams, I.S., Neiva, A.M.R., Ribeiro, M.L., 2009. U-Th-Pb SHRIMP ages and oxygen isotope composition of zircon from two contrasting late Variscan granitoids, NisaAlbuquerque batholith, SW Iberian Massif: Petrologic and regional implications. Lithos, 111(3-4), 156-167. http://dx.doi.org/10.1016/j.lithos.2009.03.045
Solgadi, F., Moyen, J.-F., Vanderhaeghe, O., Sawyer, E.W., Reisberg, L., 2007. The role of crustal anatexis and mantlederived magmas in the genesis of synorogenic Hercynian granites of the Livradois Area, French Massif Central. The Canadian Mineralogist, 45, 581-606. http://dx.doi.org/10.2113/gscanmin.45.3.581
Sun, S.-S., McDonough, W.F., 1989. Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. In: Saunders, A.D., Norry, M.J., (eds.). Magmatism in the Ocean Basins. London, Geological Society, Special Publications, 42, 313-345. https://doi.org/10.1144/GSL.SP.1989.042.01.19
Turpin, L., Velde, D., Pinte, G., 1988. Geochemical comparison between minettes and kersantites from the Western European Hercynian orogen: trace element and Pb-Sr-Nd isotope constraints on their origin. Earth and Planetary Science Letters, 87, 73-86.
Villaseca, C., Barbero, L., Rogers, G., 1998. Crustal origin of Hercynian peraluminous granitic batholiths of Central Spain: petrological, geochemical and isotopic (Sr, Nd) constraints. Lithos, 43(2), 55-79. https://doi.org/10.1016/S0024-4937(98)00002-4
von Raumer, J.F., Finger, F., Veselá, P., Stampfli, G.M., 2014. Durbachites–Vaugnerites–a geodynamic marker in the central European Variscan orogen. Terra Nova, 26(2), 85-95. https://doi.org/10.1111/ter.12071
Willmann, K., 1920. Die Redwitzite, eine neue Gruppe von granitischen Lamprophyren. Zeitschrift der Deutschen Geologischen Gesellschaft, 71, 1-33.
Downloads
Published
Issue
Section
License
Copyright (c) 2018 Geologica Acta
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Copyright
Geologica Acta is the property of the UB, GEO3BCN, IDAEA and UAB. Geologica Acta must be cited for any partial or full reproduction. Papers are distributed under the Attribution-Share Alike Creative Commons License. This license allows anyone to reproduce and disseminate the content of the journal and even make derivative works crediting authorship and provenance and distributing possible derivative works under the same or an equivalent license.
Author Rights
Authors retain the copyright on their papers and are authorized to post them on their own web pages or institutional repositories. The copyright was retained by the journal from the year 2003 until 2009. In all cases, the complete citation and a link to the Digital Object Identifier (DOI) of the article must be included.
The authors can use excerpts or reproduce illustrations of their papers in other works without prior permission from Geologica Acta provided the source of the paper including the complete citation is fully acknowledged.
