Early Cretaceous intraplate seamounts from Guanajuato, central Mexico: geochemical and mineralogical data
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| Format: | Artículo científico |
| Langue: | en |
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Universidad Nacional Autónoma de México
2003
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| _version_ | 1876462631406010368 |
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| author | Otilio Arturo Acevedo Sandoval |
| author_facet | Otilio Arturo Acevedo Sandoval |
| contents | Early Cretaceous intraplate seamounts from Guanajuato, central Mexico: geochemical and mineralogical data Otilio Arturo Acevedo Sandoval Kinardo Flores Castro Luis Enrique Ortiz Hernández Ciencias de la Tierra hot spot Mexico seamounts Guanajuato An Early Cretaceous submarine volcanic and volcaniclastic sequence is found in the northwesternpart of the Sierra de Guanajuato, in central Mexico. This sequence is formed by mildly alkalinebasaltic pillow lavas interbedded with massive lava flows, pillow breccias, hyaloclastites, lapillituffs, and cognate feeder dikes capped by ribbon cherts and other pelagic flysch-like sediments.Mineralogically, the pillow lavas and cognate diabasic dikes are composed of titaniferoussalite/augite, albite, ilmenite, titanite, prehnite, and pumpellyite. Geochemically, they are characterizedby high contents of TiO2, Zr, Nb, and P2O5, high Ti/V ratios (49-61), and slightly enrichedLREE-patterns (2 < LaN/YbN < 4). These rocks are interpreted as remnants of shallow water depositsof intra-plate seamounts formed as a result of hot-spot volcanism. 2003 artículo científico 1026-8774 https://www.redalyc.org/articulo.oa?id=57220103 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.20 |
| format | Artículo científico |
| id | redalyc_57220103 |
| institution | Redalyc |
| language | en |
| publishDate | 2003 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Early Cretaceous intraplate seamounts from Guanajuato, central Mexico: geochemical and mineralogical data Otilio Arturo Acevedo Sandoval Ciencias de la Tierra hot spot Mexico seamounts Guanajuato Early Cretaceous intraplate seamounts from Guanajuato, central Mexico: geochemical and mineralogical data Otilio Arturo Acevedo Sandoval Kinardo Flores Castro Luis Enrique Ortiz Hernández Ciencias de la Tierra hot spot Mexico seamounts Guanajuato An Early Cretaceous submarine volcanic and volcaniclastic sequence is found in the northwesternpart of the Sierra de Guanajuato, in central Mexico. This sequence is formed by mildly alkalinebasaltic pillow lavas interbedded with massive lava flows, pillow breccias, hyaloclastites, lapillituffs, and cognate feeder dikes capped by ribbon cherts and other pelagic flysch-like sediments.Mineralogically, the pillow lavas and cognate diabasic dikes are composed of titaniferoussalite/augite, albite, ilmenite, titanite, prehnite, and pumpellyite. Geochemically, they are characterizedby high contents of TiO2, Zr, Nb, and P2O5, high Ti/V ratios (49-61), and slightly enrichedLREE-patterns (2 < LaN/YbN < 4). These rocks are interpreted as remnants of shallow water depositsof intra-plate seamounts formed as a result of hot-spot volcanism. 2003 artículo científico 1026-8774 https://www.redalyc.org/articulo.oa?id=57220103 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.20 |
| title | Early Cretaceous intraplate seamounts from Guanajuato, central Mexico: geochemical and mineralogical data |
| topic | Ciencias de la Tierra hot spot Mexico seamounts Guanajuato |
| url | https://www.redalyc.org/articulo.oa?id=57220103 |