Microclimatic characterization of a karstic cave: human impact on microenvironmental parameters of a prehistoric rock art cave (Candamo Cave, northern Spain)

Hoyos, M.; Soler, V.; Cañaveras, Juan Carlos; Sánchez‐Moral, Sergio; Sanz-Rubio, E.

doi:10.1007/s002540050242

Cited by 136 publications

(110 citation statements)

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“…Caves in Gibraltar, near the sea level such as Ragged Staff Cave show a similar seasonal pCO 2 cycle as in CL and elevated caves above sea level such as St. Michaels Cave show an opposite pCO 2 seasonality where maxima occur during the winter (Mattey et al, 2010(Mattey et al, , 2016. Similar observations come from Candamo Cave, Spain (Hoyos et al, 1998). The host rock of both locations has high porosity allowing air from the surface to reach the cave during the summer; this is not the case in the dense Lares Limestone hosting CL.…”

Section: Discussionsupporting

confidence: 63%

“…In Castañar de Ibor Cave a major atmospheric low pressure event lowered cave pCO 2 via increasing cave ventilation (Fernandez-Cortes et al, 2009), such a major event did not occur over the monitored time frame in CL. Similar observations come from another site in Spain, Candamo Cave, where low atmospheric pressure systems during the winter are related to lower cave pCO 2 (Hoyos et al, 1998). The long term observations (Fig.…”

Section: Diurnal Variations In Temperature Andsupporting

confidence: 69%

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Seasonal temperature variations controlling cave ventilation processes in Cueva Larga, Puerto Rico

Vieten¹,

Winter²,

Warken³

et al. 2016

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Abstract:Two years of cave monitoring investigate ventilation processes in Cueva Larga, a tropical cave in Puerto Rico. The cave is 1,440 m long with a large main passage (about 120,000 m 3 ). Cave air pCO 2 in the main passage varies seasonally, between 600 ppm in winter and 1,800 ppm in summer. The seasonal variability in cave pCO 2 permits the estimation of a cave air exchange time of 36 ± 5 days and a winter ventilation rate of 3,300 ± 1,000 m 3 /day for the main cave passage. Calculations of virtual temperature and differences between cave and surface temperature indicate that the seasonal temperature cycle is the main driver of the alternation between a well-ventilated winter mode and a near-stagnant summer mode. The winter mode is characterized by a positive buoyancy contrast at night leading to maximal cave ventilation, while cave ventilation is at a minimum during summer. Between winter and summer, a transitional mode of partial cave ventilation is observed. On shorter time scales (diurnal to weekly), cave pCO 2 is also influenced by atmospheric pressure but this variation is one order of magnitude lower than the seasonal pCO 2 change. The cave morphology of Cueva Larga including its large volume, tubular shape and the obstructed cave entrance geometry are important boundary conditions for the observed ventilation patterns. Our findings emphasize that cave systems with varying morphology have to be studied individually in order to correctly describe ventilation processes. environmental monitoring, cave ventilation, carbon dioxide, virtual temperature, air exchange time

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Section: Discussionsupporting

confidence: 63%

Section: Diurnal Variations In Temperature Andsupporting

confidence: 69%

Seasonal temperature variations controlling cave ventilation processes in Cueva Larga, Puerto Rico

Vieten¹,

Winter²,

Warken³

et al. 2016

IJS

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“…Bourges et al 2001) and summer depletion (e.g. Hoyos et al, 1998) can occur. The controlling factors include potentially increased winter ventilation (Spötl et al, 2005) sometimes related to thermo-convective instability (Bourges et al, 2006), water-filling of CO 2 -bearing fissures from the epikarst, and temperature and rainfall controls on soil PCO 2 (Fairchild et al, 2006c).…”

Section: Causes Of Prior Calcite Precipitationmentioning

confidence: 99%

Speleothems as indicators of wet and dry periods

Fairchild¹,

McMillan²

2007

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“…Cambios estacionales en la concentración de CO 2 típicos de cavidades kársti-cas someras (Hoyos et al, 1998;Sánchez-Moral et al, 1999;Cuezva et al, 2004;Lario et al, 2005), podrían influenciar decisivamente el metabolismo de las comunidades microbianas y afectar a procesos de solubilidad o precipitación de carbonatos bioinducidos. Por tanto, resulta decisiva la caracterización de las condiciones microambientales en cada punto, así como el análisis estacional, de los ambientes en los que se propone este estudio a través de parámetros físicos, químicos y geológicos en conjunción con estudios microbiológicos.…”

Section: Estrategias De Investigación: Métodos Tradicionales Y Nuevasunclassified

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Sánchez‐Moral

Gonzalez

Cañaveras³

et al. 2006

Estud. geol.

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RESUMENLos microorganismos, en particular las bacterias, habitan en todos los ambientes posibles de la biosfera incluidos los ambientes subterráneos. Desempeñan un papel importante en procesos geológicos tales como la precipitación y disolución mineral, e influyen notablemente sobre los ciclos biogeoquími-cos de diferentes elementos. Hasta este momento, son relativamente pocos los estudios orientados a conocer el papel activo de los microorganismos, especialmente las bacterias, en la formación de espeleotemas, de manera que la implicación de la actividad microbiana en la precipitación y disolución mineral en ambientes kársticos es un tema aún sin resolver en geomicrobiología. Actualmente, no está del todo aclarada cuál es la interrelación entre los microorganismos y las fábricas minerales, ni el papel que juegan los microorganismos en la precipitación de carbonatos.Las cuevas son ambientes protegidos donde las fábricas microbianas pueden preservarse sin sufrir modificaciones diagenéticas importantes o destrucción, ofreciendo, por ello, un excelente entorno para estudiar los procesos de biomineralización (desde los propios microorganismos activos a sus depósitos minerales). Las nuevas tendencias en geomicrobiología se basan en la conjunción de diferentes metodologías (microclima, petrología, geoquímica, hidroquímica, microbiología, biología molecular) con un objetivo común: 1) determinar el papel de las diferentes comunidades microbianas que habitan los ambientes subterráneos en los procesos de transformación mineral; 2) identificar las propiedades físicas y químicas de las fases cristalinas bioinducidas, y 3) determinar las condiciones ambientales y las propiedades composicionales y texturales de los soportes rocosos naturales (biorreceptividad) que favorecen o inhiben el desarrollo de las comunidades microbianas.Palabras clave: comunidad microbiana, geomicrobiología, biorreceptividad, biomineralización, karst, cueva. ABSTRACT Microorganisms, particularly bacteria, inhabit all possible environments in the biosphere including subterranean ones. They play an important role in geological processes such as mineral precipitation and dissolution, and significantly influence biogeochemical cycles. At present, relatively few studies have focused on the active role of microorganisms, especially bacteria, in the formation of speleothems. Thus, the involvement of microbial activity in the formation of speleothems in caves is a geomicrobiological issue still to be solved. Today, the relationship between microorganisms and mineral fabrics and the role played by microorganisms in carbonate precipitation is unclear.The processes of carbonate deposit formation in caves offers an excellent scenario for research on biomineralization processes (from active microorganisms to their mineral deposits), because caves are protected environments where microbial fabrics can be preserved without extensive diagenetic modification or destruction. The new tendencies on geomicrobiological studies consist on applying different and multidiscipli...

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Microclimatic characterization of a karstic cave: human impact on microenvironmental parameters of a prehistoric rock art cave (Candamo Cave, northern Spain)

Cited by 136 publications

References 6 publications

Seasonal temperature variations controlling cave ventilation processes in Cueva Larga, Puerto Rico

Seasonal temperature variations controlling cave ventilation processes in Cueva Larga, Puerto Rico

Speleothems as indicators of wet and dry periods

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