Higgins Michael D.. (1988). Light lithophile element (boron, lithium) abundances in the Valles caldera, New Mexico, VC‐1 core hole. Journal of Geophysical Research, 93, (B6), p. 6103-6107.
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URL officielle: https://doi.org/10.1029/JB093iB06p06103
Résumé
Boron and lithium abundance distributions are very different in the sedimentary and volcanic sections of the VC‐1 core hole, Valles caldera, New Mexico. In the sedimentary section the wide variations in boron and lithium abundances probably reflect both diagenesis and introduction of these elements in early hydrothermal fluids. Late, higher‐temperature fluids appear to have leached boron and lithium from some rocks adjacent to fault zones and aquifers. The correlation of boron with lithium suggests that these elements behave in similar ways during diagenesis and hydrothermal alteration. The small variation of boron and lithium abundances in most of the vitreous volcanic rocks from the upper part of the core implies that their source was relatively homogeneous. Following primary devitrification, boron appears to have been stable, but lithium was mobile. Boron may have been stabilized by the development of boron‐bearing submicroscopic phenocrysts in the lavas, or boron may be less soluble than lithium in relatively cool groundwater.
Type de document: | Article publié dans une revue avec comité d'évaluation |
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Volume: | 93 |
Numéro: | B6 |
Pages: | p. 6103-6107 |
Version évaluée par les pairs: | Oui |
Date: | 10 Juin 1988 |
Sujets: | Sciences naturelles et génie > Sciences naturelles > Sciences de la terre (géologie, géographie) |
Département, module, service et unité de recherche: | Départements et modules > Département des sciences appliquées > Unité d'enseignement en sciences de la Terre |
Mots-clés: | Bore, lithium, Caldeira des vallées, Nouveau-Mexique, sédimentaire, roches volcaniques, éléments lithophiles légers, carottes, VC-1 |
Déposé le: | 05 avr. 2018 01:28 |
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Dernière modification: | 05 avr. 2018 01:28 |
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