The Cerro Morado Andesites: Volcanic history and eruptive styles of a mafic volcanic field from northern Puna, Argentina

Cabrera, Agustín; Caffe, Pablo Jorge

doi:10.1016/j.jsames.2009.03.007

Cited by 11 publications

(4 citation statements)

References 34 publications

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“…1a,b), cropping out at Sierra de Lina and Sierra de Olaroz, are covered by Paleogene to Lower Miocene red bed sandstones and mudstones pertaining to Peña Colorada Formation (Coira et al, 2004). Rhyolites (~10-11 Ma) pertaining to the Pairique Volcanic Complex , and Cerro Morado basaltic-andesite (6.7 ± 0.4 Ma) were also recognized (Coira et al, 1996;Cabrera and Caffe, 2009). …”

Section: Pairiquementioning

confidence: 99%

Fluid geochemistry of a deep-seated geothermal resource in the Puna plateau (Jujuy Province, Argentina)

Arnold

Cabassi

Tassi

et al. 2017

Journal of Volcanology and Geothermal Research

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This study focused on the geochemical and isotopic features of thermal fluids discharged from five zones located in the high altitude Puna plateau (Jujuy Province between S 22°20′-23°20′ and W 66°-67°), i.e. Granada, Vilama, Pairique, Coranzulí and Olaroz. Partially mature waters with a Na + -Cl − composition were recognized in all the investigated zones, suggesting that a deep hydrothermal reservoir hosted within the Paleozoic crystalline basement represents the main hydrothermal fluid source. The hydrothermal reservoirs are mainly recharged by meteoric water, although based on the δ 18 O-H 2 O and δD-H 2 O values, some contribution of andesitic water cannot be completely ruled out. Regional S-oriented faulting systems, which generated a horst and graben tectonics, and NE-, NW-and WE-oriented transverse structures, likely act as preferentially uprising pathways for the deep-originated fluids, as also supported by the Rc/Ra values (up to 1.39) indicating the occurrence of significant amounts of mantle He (up to 16%). Carbon dioxide, the most abundant compound in the gas phase associated with the thermal waters, mostly originated from a crustal source, although the occurrence of CO 2 from a mantle source, contaminated by organic-rich material due to the subduction process, is also possible. Relatively small and cold Na + -HCO 3 − -type aquifers were produced by the interaction between meteoric water and Cretaceous, Palaeogene to Miocene sediments. Dissolution of evaporitic surficial deposits strongly affected the chemistry of the thermal springs in the peripheral zones of the study area. Geothermometry in the Na-K-Ca-Mg system suggested equilibrium temperatures up to 200°C for the deep aquifer, whereas lower temperatures (from 105 to 155°C) were inferred by applying the H 2 geothermometer, likely due to re-equilibrium processes during the thermal fluid uprising within relatively shallow Na-HCO 3 aquifers. The great depth of the geothermal resource (possibly N 5000 m b.g.l.) is likely preventing further studies aimed to evaluate possible exploitation, although the occurrence of Liand Ba-rich deposits associated may attract financial investments, giving a pulse for the development of this remote region.

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Section: Pairiquementioning

confidence: 99%

Fluid geochemistry of a deep-seated geothermal resource in the Puna plateau (Jujuy Province, Argentina)

Arnold

Cabassi

Tassi

et al. 2017

Journal of Volcanology and Geothermal Research

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“…To confidently say that the decreasing trend in morphometric parameters is associated with age, it is important to reconstruct the likely environment where the edifice degradation has taken place, including the number of 'event' and major changes in the degradation controls. This includes understanding the combination and diversity of facies architecture [68,468], the stratigraphic position of the edifice within the stratigraphic record of the volcanic field [412,469], the approximate likelihood of aggradation by, for example, tephra mantling [411], and spatial and temporal combination and fluctuation of 'normal' and 'event' degradation processes over the erosion history. Figure 14.…”

Section: Post-eruptive Erosion Of Monogenetic Volcanoes By Normal Andmentioning

confidence: 99%

Monogenetic Basaltic Volcanoes: Genetic Classification, Growth, Geomorphology and Degradation

Keresztúri¹,

Németh²

2012

Updates in Volcanology - New Advances in Understanding Volcanic Systems

136

116

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“…This is important to remark because the total eruptive volume of a whole volcanic field may be comparable with the total volume of eruptive products of a polygenetic composite volcano (Németh, ), although the impact of the volcaniclastic supply to the sedimentary environment is low, resulting in low potential of preservation in the sedimentary record (White, ). Monogenetic volcanic fields are composed of individual, short‐lived volcanoes that are commonly small in eruptive volume (see Walker, ; Németh & Martin, ; Cabrera & Caffe, ; Németh, ; Nishikia et al ., ). The higher eruption frequency during this volcanic scenario could have been buffered in the record by the low volume of these eruptions and the change in vent locations over time, forming the typical dispersed patterns of volcanoes characteristic of volcanic fields (Németh & Kereszturi, ).…”

Section: Discussionmentioning

confidence: 99%

Impact of volcanism on the sedimentary record of the Neuquén rift basin, Argentina: towards a cause and effect model

et al. 2016

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The analysis of volcano-sedimentary infill in sedimentary basins constitutes a challenge for basin analysis and hydrocarbon exploration worldwide. In order to understand the contribution of volcanism to the sedimentary record in rift basins, we study the Jurassic effusive-explosive volcanic infill of an inverted extensional depocentre at the Neuqu en Basin, Argentina. A cause and effect model that evaluates the relationship between volcanism and sedimentation was devised to develop a conceptual model for the tectono-stratigraphic evolution of this volcanic rift basin. We show how the variations in the volcanism, coupled with the activity of extensional faults, determined the types of volcanic edifices (i.e., composite volcanoes, graben-calderas, and lava fields). Volcanic edifices controlled the stacking patterns of the volcanic units as well as sedimentary systems. The landform of the volcanic edifices, as well as the styles and scales of the eruptions governed the sedimentary input to the basin, setting the main variables of the sedimentary systems, such as provenance, grain size, transport and deposition and geometry. As a result, the contrasting volcaniclastic input, from higher volcaniclastic input to lower volcaniclastic input, associated with different subsidence patterns, determined the high-resolution syn-rift infill patterns of the extensional depocentre. The cause and effect model presented in this study isolates the variables of the volcanic environments that control the sedimentary scenarios. We suggest that, by adjusting the first order input parameters of the model, these cause and effect scenarios could be adapted to similar rift basins, in order to establish predictive facies models with stratigraphic controls, and the impact of volcanism on their stratigraphic records.

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The Cerro Morado Andesites: Volcanic history and eruptive styles of a mafic volcanic field from northern Puna, Argentina

Cited by 11 publications

References 34 publications

Fluid geochemistry of a deep-seated geothermal resource in the Puna plateau (Jujuy Province, Argentina)

Fluid geochemistry of a deep-seated geothermal resource in the Puna plateau (Jujuy Province, Argentina)

Monogenetic Basaltic Volcanoes: Genetic Classification, Growth, Geomorphology and Degradation

Impact of volcanism on the sedimentary record of the Neuquén rift basin, Argentina: towards a cause and effect model

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