| Reference Type | Journal (article/letter/editorial) |
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| Title | The northern Ossa-Morena Cadomian batholith (Iberian Massif): magmatic arc origin and early evolution |
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| Journal | International Journal of Earth Sciences |
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| Authors | Bandrés, A | Author |
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| Eguı́luz, L | Author |
| Pin, Ch | Author |
| Paquette, JL | Author |
| Ordóñez, B | Author |
| Le Fèvre, B | Author |
| Ortega, LA | Author |
| Gil Ibarguchi, JI | Author |
| Year | 2004 (November) | Volume | 93 |
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| Page(s) | 860-885 | Issue | 5 |
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| Publisher | Springer |
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| DOI | doi:10.1007/s00531-004-0423-6Search in ResearchGate |
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| Generate Citation Formats |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 532858 | Long-form Identifier | mindat:1:5:532858:5 |
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| GUID | 0 |
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| Full Reference | Bandrés, A, Eguı́luz, L, Pin, Ch, Paquette, JL, Ordóñez, B, Le Fèvre, B, Ortega, LA, Gil Ibarguchi, JI (2004) The northern Ossa-Morena Cadomian batholith (Iberian Massif): magmatic arc origin and early evolution. International Journal of Earth Sciences, 93 (5). 860-885 doi:10.1007/s00531-004-0423-6 |
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| Plain Text | Bandrés, A, Eguı́luz, L, Pin, Ch, Paquette, JL, Ordóñez, B, Le Fèvre, B, Ortega, LA, Gil Ibarguchi, JI (2004) The northern Ossa-Morena Cadomian batholith (Iberian Massif): magmatic arc origin and early evolution. International Journal of Earth Sciences, 93 (5). 860-885 doi:10.1007/s00531-004-0423-6 |
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| In | (2004, November) International Journal of Earth Sciences Vol. 93 (5) Springer Science and Business Media LLC |
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| Abstract/Notes | Diorites and related rocks in the Mrida area of northern Ossa-Morena (SW Iberia) are intrusive into Precambrian metavolcanic and metasedimentary sequences. Cumulate products from the H2O-rich magmas are amphibole-rich gabbros to hornblendites. Major and trace element compositions, including Sr and Nd isotope data, allow the definition of a calc-alkaline series likely formed in relation to an immature arc setting. Crystallization of the intrusives has been established between ca. 570 and 580 Ma by U-Pb dating of constituent zircons. Garnet growth in dioritic rocks reflects a tectono– thermal overprint dated by Sm-Nd internal isochrons at around 555 Ma. Older Sm-Nd and Lu-Hf results between ca. 593 and 637 Ma on the same rocks suggest an earlier stage of regional metamorphism within the arc environment. The northern Ossa-Morena composite batholith and related metamorphic units have been tectonized and dismembered in the course of subsequent low-grade events during final stages of the Cadomian orogeny and the Variscan cycle. The units studied represent a well preserved segment of the arc region that evolved in Neoproterozoic times along the western border of Gondwana to conform the Cadomian–Avalonian basement of the Hercynian realm. |
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