Volcanic lake systematics II. Chemical constraints

Varekamp, Johan C.; Pasternack, G. B.; Rowe, Gary L.

doi:10.1016/s0377-0273(99)00182-1

Cited by 121 publications

(66 citation statements)

References 34 publications

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“…3). Hence, the low pH and high SO 4 2 − and Cl − contents of the crater lakes (Table 4), closely resembling that of the so-called "Active" crater lakes (Varekamp et al, 2000), were likely produced by the interaction of meteoric water with acidic gases uprising from a magmatic source. The interaction between deep-originated gases and meteoric water may explain the occurrence, although at relatively low concentrations, of atmospheric gases in the fluids from the summit area.…”

Section: Fluid Source Regionsmentioning

confidence: 84%

Geochemistry of fluid discharges from Peteroa volcano (Argentina-Chile) in 2010–2015: Insights into compositional changes related to the fluid source region(s)

et al. 2016

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Section: Fluid Source Regionsmentioning

confidence: 84%

Geochemistry of fluid discharges from Peteroa volcano (Argentina-Chile) in 2010–2015: Insights into compositional changes related to the fluid source region(s)

et al. 2016

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“…In general, the volcanic rock is composed predominantly of twopyroxene and two-pyroxene hornblende andesites, possessing plagioclases as major phenocrysts, and the Wuchishan Formation is composed of course sandstone with abundant quartz grains (Chen 1963;Wu 1967). Previous studies have shown that the acidic thermal water could react with plagioclase to neutralize the water, reduce SO 4 2-ion concentrations and generate anhydite, montmorillonite, kaolinite, calcite and alunite as hydrothermally precipitated minerals (Chen and Yang 1984;Liu et al 1984;Wang 1991;Muir and Nesbitt 1992;Nogami and Yoshida 1995;Kempter and Rowe 2000;Varekamp et al 2000;Fang et al 2003;Marini et al 2003).…”

Section: Origin Of Type II Hot Springmentioning

confidence: 99%

Characteristics and Origins of Hot Springs in the Tatun Volcano Group in Northern Taiwan

Liu¹,

Song²,

Chen³

et al. 2011

Terr. Atmos. Ocean. Sci.

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This paper systematically surveyed distribution and field occurrences of 13 hot springs as well as geochemical investigation on the geothermal area of the Tatun Volcano Group (TVG). According to Piper diagrams, pH values, field occurrences and water-rock interactions, these hot springs can be classified into three types: (1) Type I, SO 4 2-acidic water where the reservoir is located in the Wuchishan Formation; (2) Type II, HCO 3 -a near neutral spring where waters originate from the volcanic terrane (andesite); and (3) Type III, Cl --rich acidic water where waters emanate from shallower Wuchishan Formation. In terms of isotopic ratio, δD and δ 18O values, two groups of hot spring can be recognized. One is far away from the meteoric water line of the Tatun area with values ranging between -26.2‰ and -3.5‰, and from -3.2‰ to 1.6‰, respectively. However, another close to the meteoric water line of the Tatun area is between -28.4‰ and -13.6‰, and from -5.5‰ to -4.2‰, respectively. In addition, the δ 34 S value of thermal waters can also be distinguished into two groups, one ranging from 26.1‰ to 28.5‰, and the other between 0.8‰ and 7.8‰. Based on field occurrences and geochemical characteristics, a model has been proposed to illustrate the origin of these hot springs.

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“…Alkaline cations, especially calcium and magnesium, appeared mainly as a result of the ion exchange processes with the magma creating the calderas, as a mechanism of weathering [3]. Calcium concentrations in the Indonesian lakes were usually between 1.9 and 35 mg·L to 26.9 in 2013, whereas for Bratan Lake this value only doubled [7].…”

Section: Main Elementsmentioning

confidence: 99%

“…This is the usual origin of andesitic-dacitic, rhyolitic, and peralkaline calderas [1]. The basaltic lavas, on the other hand, are characterized by effusive eruptions [2], thus a caldera can only be formed in them following the collapse of an empty magma chamber [3,4].…”

Section: Introductionmentioning

confidence: 98%

Estimating the Impact of Inflow on the Chemistry of Two Different Caldera Type Lakes Located on the Bali Island (Indonesia)

Polkowska

Wolska

Łéczyński

et al. 2015

Water

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This paper is a preliminary attempt to assess the composition of pollutants in two different caldera lakes situated in the Indonesian Archipelago: Batur and Bratan. Both lakes are characterized by largely different physico-chemical regimes; Batur Lake is located in an area that is currently volcanically active, unlike Bratan Lake. The latter is much smaller and shallower than Batur Lake. The concentration of pollutants in the Indonesian equatorial lakes is largely unknown, and the impact of both biological and geothermal processes on their distribution requires attention. This study shows that the concentrations of cations (Na 1713Be, Ag, Sb, Tl, Bi) differ greatly between both lakes. Most chemical parameters determined in volcanically influenced Batur Lake were tens to hundreds times higher than in Bratan Lake, and in the case of trace metals, the ratios of the two lakes' concentrations reached several hundreds. This study also compared the composition and concentration levels of organic compounds in both lakes, such as fatty acids, halocarbons and esters. On the other hand, the content of organic chemicals in the lakes also results from biological activity by phytoplankton, zooplankton and bacteria.

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Volcanic lake systematics II. Chemical constraints

Cited by 121 publications

References 34 publications

Geochemistry of fluid discharges from Peteroa volcano (Argentina-Chile) in 2010–2015: Insights into compositional changes related to the fluid source region(s)

Geochemistry of fluid discharges from Peteroa volcano (Argentina-Chile) in 2010–2015: Insights into compositional changes related to the fluid source region(s)

Characteristics and Origins of Hot Springs in the Tatun Volcano Group in Northern Taiwan

Estimating the Impact of Inflow on the Chemistry of Two Different Caldera Type Lakes Located on the Bali Island (Indonesia)

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