An arc ankaramite occurrence in central Mexico
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| Format: | Artículo científico |
| Sprache: | en |
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Universidad Nacional Autónoma de México
2000
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| _version_ | 1876431353328697344 |
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| author | Luis Enrique Ortiz Hernández |
| author_facet | Luis Enrique Ortiz Hernández |
| contents | An arc ankaramite occurrence in central Mexico Luis Enrique Ortiz Hernández Ciencias de la Tierra dikes Ankaramite Guanajuato arc magmatism central Mexico Melanocratic clinopyroxene-rich dikes intruding ultramafic cumulate rocks at the base of theGuanajuato magmatic sequence, in central Mexico, are classified as ankaramites.They are high Mg, Cr and Ni basic rocks that have slightly enriched LREE-patterns, and Epsilon Nd(T=110 Ma) = +7.22 , which is consistent with their derivation from a high-field strength elements (HFSE)depleted source, within an island-arc setting. These magnesian rocks may have been parental to the maturetholeiitic and calc-alkaline series of this segment of the Guerrero terrane. 2000 artículo científico 1026-8774 https://www.redalyc.org/articulo.oa?id=57217103 en http://www.redalyc.org/revista.oa?id=572 Revista Mexicana de Ciencias Geológicas application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Ciencias Geológicas (México) Num.1 Vol.17 |
| format | Artículo científico |
| id | redalyc_57217103 |
| institution | Redalyc |
| language | en |
| publishDate | 2000 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | An arc ankaramite occurrence in central Mexico Luis Enrique Ortiz Hernández Ciencias de la Tierra dikes Ankaramite Guanajuato arc magmatism central Mexico An arc ankaramite occurrence in central Mexico Luis Enrique Ortiz Hernández Ciencias de la Tierra dikes Ankaramite Guanajuato arc magmatism central Mexico Melanocratic clinopyroxene-rich dikes intruding ultramafic cumulate rocks at the base of theGuanajuato magmatic sequence, in central Mexico, are classified as ankaramites.They are high Mg, Cr and Ni basic rocks that have slightly enriched LREE-patterns, and Epsilon Nd(T=110 Ma) = +7.22 , which is consistent with their derivation from a high-field strength elements (HFSE)depleted source, within an island-arc setting. These magnesian rocks may have been parental to the maturetholeiitic and calc-alkaline series of this segment of the Guerrero terrane. 2000 artículo científico 1026-8774 https://www.redalyc.org/articulo.oa?id=57217103 en http://www.redalyc.org/revista.oa?id=572 Revista Mexicana de Ciencias Geológicas application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Ciencias Geológicas (México) Num.1 Vol.17 |
| title | An arc ankaramite occurrence in central Mexico |
| topic | Ciencias de la Tierra dikes Ankaramite Guanajuato arc magmatism central Mexico |
| url | https://www.redalyc.org/articulo.oa?id=57217103 |