Geochemical evidence for active tropical serpentinization in the Santa Elena Ophiolite, Costa Rica: An analog of a humid early Earth?

Sánchez‐Murillo, Ricardo; Gazel, Esteban; Schwarzenbach, Esther M.; Crespo‐Medina, Melitza; Schrenk, M. O.; Boll, Jan; Gill, Benjamin C.

doi:10.1002/2013gc005213

Cited by 55 publications

(47 citation statements)

References 114 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These Class V data can only be taken as suggestions of possible chemolithotrophic metabolisms until more solid evidence is developed. Nevertheless, they point to the possibility for CO oxidation [ Brazelton et al ., ], hydrogen oxidation [ Brazelton et al ., ; Suzuki et al ., ; Tiago and Veríssimo , ; Sánchez‐Murillo et al ., ; Quéméneur et al ., , ; Miller et al ., ], methanogenesis [ Brazelton et al ., ; Blank et al ., ; Sánchez‐Murillo et al ., ; Quéméneur et al ., , ; Baculi et al ., ; Woycheese et al ., ; Miller et al ., ], anaerobic methane oxidation [ Curtis et al ., ; Quéméneur et al ., , ; Miller et al ., ], nitrogen reduction [ Quéméneur et al ., ], sulfate reduction [ Brazelton et al ., ; Blank et al ., ; Tiago and Veríssimo , ; Curtis et al ., ; Quéméneur et al ., ; Postec et al ., ; Miller et al ., ], sulfide oxidation [ Quéméneur et al ., ], and ammonia oxidation [ Quéméneur et al ., , ; Baculi et al ., ]. In addition, Class V evidence for aerobic methanotrophy is offered by Sánchez‐Murillo et al .…”

Section: Molecular Evidence For Microbial Metabolisms From Hyperalkalmentioning

confidence: 99%

“…In addition, Class V evidence for aerobic methanotrophy is offered by Sánchez‐Murillo et al . [] in samples from the Santa Elena Ophiolite in Costa Rica, Quéméneur et al . [] from samples from Prony Bay, and Quéméneur et al .…”

Section: Molecular Evidence For Microbial Metabolisms From Hyperalkalmentioning

confidence: 99%

“…Nevertheless, they point to the possibility for CO oxidation , hydrogen oxidation Suzuki et al, 2013;Tiago and Veríssimo, 2013;Sánchez-Murillo et al, 2014;Quéméneur et al, 2014Quéméneur et al, , 2015Miller et al, 2016], methanogenesis [Brazelton et al, 2006;Blank et al, 2009;Sánchez-Murillo et al, 2014;Quéméneur et al, 2014Quéméneur et al, , 2015Baculi et al, 2015;Woycheese et al, 2015;Miller et al, 2016], anaerobic methane oxidation [Curtis et al, 2013;Quéméneur et al, 2014Quéméneur et al, , 2015Miller et al, 2016], nitrogen reduction , sulfate reduction [Brazelton et al, 2006;Blank et al, 2009;Tiago and Veríssimo, 2013;Curtis et al, 2013;Quéméneur et al, 2014;Postec et al, 2015;Miller et al, 2016], sulfide oxidation , and ammonia oxidation Baculi et al, 2015]. In addition, Class V evidence for aerobic methanotrophy is offered by Sánchez-Murillo et al [2014] in samples from the Santa Elena Ophiolite in Costa Rica, Quéméneur et al [2014] from samples from Prony Bay, and Quéméneur et al [2015] from samples from the Voltri Massif in Italy. Furthermore, the suggestion of nitrite oxidation at Cabeço de Vide is made by Tiago and Veríssimo [2013] and at the Leka Ophiolite in Norway by Daae et al [2013].…”

Section: 1002/2017jg003825mentioning

confidence: 99%

See 2 more Smart Citations

Geochemical bioenergetics during low‐temperature serpentinization: An example from the Samail ophiolite, Sultanate of Oman

Canovas

Hoehler

Shock

2017

J. Geophys. Res. Biogeosci.

View full text Add to dashboard Cite

Various classes of microbial and biomolecular evidence from global studies in marine and continental settings are used to identify a set of reactions that appear to support microbial metabolism during serpentinization of ultramafic rocks. Geochemical data from serpentinizing ecosystems in the Samail ophiolite of Oman are used to evaluate the extent of disequilibria that can support this set of microbial metabolisms and to provide a ranking of potential metabolic energy sources in hyperalkaline fluids that are direct products of serpentinization. Results are used to construct hypotheses for how microbial metabolism may be supported in the subsurface for two cases: ecosystems hosted in rocks that have already undergone significant serpentinization and those hosted by deeper, active serpentinization processes.

show abstract

Section: Molecular Evidence For Microbial Metabolisms From Hyperalkalmentioning

confidence: 99%

Section: Molecular Evidence For Microbial Metabolisms From Hyperalkalmentioning

confidence: 99%

Section: 1002/2017jg003825mentioning

confidence: 99%

See 1 more Smart Citation

Geochemical bioenergetics during low‐temperature serpentinization: An example from the Samail ophiolite, Sultanate of Oman

Canovas

Hoehler

Shock

2017

J. Geophys. Res. Biogeosci.

View full text Add to dashboard Cite

show abstract

“…CH 4 mixing ratios were also influenced by natural and anthropogenic sources at several sites located outside the valley. The CH 4 levels at the sampling sites located on the Santa Elena Peninsula (Murciélago and La Cruz) were influenced by natural sources that release CH 4 into the atmosphere, such as the biological activity in wetlands (mangroves) located on the coast near La Cruz [23], and also emissions that arise from the active serpentinization process recently characterized in the Murciélago River [39]. Concentrations at other rural and urban sites might be influenced by local emissions originating from agricultural settings, where livestock activities are recognized sources of CH 4 [40].…”

Section: Spatial Distribution Of Co2 and Ch4 During The Transition Pementioning

confidence: 99%

Near Surface Carbon Dioxide and Methane in Urban Areas of Costa Rica

Esquivel‐Hernández¹,

Villalobos-Forbes²,

Sánchez‐Murillo³

et al. 2015

OJAP

Self Cite

View full text Add to dashboard Cite

Little information is available for Central America regarding methane and carbon dioxide mixing ratios in urban areas. This work reports a representative spatial and seasonal study of near surface carbon dioxide and methane, carried out between July 2014 and January 2015 (27 weeks) in the Central Valley of Costa Rica, and other urban and rural sites across the country and covering three distinct seasons: Mid-summer drought (July-August), wet season (September-November) and transition period (December-January). The mixing ratios of both gases are clearly influenced by the metropolitan area, and by the prevailing atmospheric conditions during the wet season months. Average carbon dioxide concentration (629 ± 80 ppm) and average methane concentration (2192 ± 110 ppb) were up to 8% and up to 10%, respectively, higher during the wet season than the values recorded outside this period. HYSPLIT back air mass trajectories analysis, and weather data available for the Central Valley, suggest that these differences arise as result of a reduction in the mixing layer of depth (~425 m) and the wind speed (~1.5 m/s) across the valley, favoring the accumulation of polluted air masses in the metropolitan area. Other natural and anthropogenic sources, like the volcanic emissions of the Turrialba Volcano and the livestock activities at rural sites, apparently influence the mixing ratios of both gases across Costa Rica. Although the scope of this study is limited to representative seasonal conditions of the Central Valley in 2014 and 2015, it is possible considering the information presented in this work that the "dome" phenomenon can be assumed to exist.

show abstract

“…This system is characterized by warm air temperature (up to 38°C during the dry season months) and extreme variation in precipitation conditions between wet (May–November) and dry (December–April) seasons, resulting in a distinctive hydrogeological setting (Sánchez-Murillo et al, 2014). These dynamic hydroclimatic conditions make the hyperalkaline springs at SEO unique, and potentially enhance rock weathering processes and the delivery of nutrients and oxidants likely stimulating subsurface microbial activity.…”

Section: Introductionmentioning

confidence: 99%

Methane Dynamics in a Tropical Serpentinizing Environment: The Santa Elena Ophiolite, Costa Rica

et al. 2017

Self Cite

View full text Add to dashboard Cite

Uplifted ultramafic rocks represent an important vector for the transfer of carbon and reducing power from the deep subsurface into the biosphere and potentially support microbial life through serpentinization. This process has a strong influence upon the production of hydrogen and methane, which can be subsequently consumed by microbial communities. The Santa Elena Ophiolite (SEO) on the northwestern Pacific coast of Costa Rica comprises ~250 km2 of ultramafic rocks and mafic associations. The climatic conditions, consisting of strongly contrasting wet and dry seasons, make the SEO a unique hydrogeological setting, where water-rock reactions are enhanced by large storm events (up to 200 mm in a single storm). Previous work on hyperalkaline spring fluids collected within the SEO has identified the presence of microorganisms potentially involved in hydrogen, methane, and methanol oxidation (such as Hydrogenophaga, Methylobacterium, and Methylibium spp., respectively), as well as the presence of methanogenic Archaea (such as Methanobacterium). Similar organisms have also been documented at other serpentinizing sites, however their functions have not been confirmed. SEO's hyperalkaline springs have elevated methane concentrations, ranging from 145 to 900 μM, in comparison to the background concentrations (<0.3 μM). The presence and potential activity of microorganisms involved in methane cycling in serpentinization-influenced fluids from different sites within the SEO were investigated using molecular, geochemical, and modeling approaches. These results were combined to elucidate the bioenergetically favorable methane production and/or oxidation reactions in this tropical serpentinizing environment. The hyperalkaline springs at SEO contain a greater proportion of Archaea and methanogens than has been detected in any terrestrial serpentinizing system. Archaea involved in methanogenesis and anaerobic methane oxidation accounted from 40 to 90% of total archaeal sequences. Genes involved in methanogenic metabolisms were detected from the metagenome of one of the alkaline springs. Methanogenic activities are likely to be facilitated by the movement of nutrients, including dissolved inorganic carbon (DIC), from surface water and their infiltration into serpentinizing groundwater. These data provide new insight into methane cycle in tropical serpentinizing environments.

show abstract

Geochemical evidence for active tropical serpentinization in the Santa Elena Ophiolite, Costa Rica: An analog of a humid early Earth?

Cited by 55 publications

References 114 publications

Geochemical bioenergetics during low‐temperature serpentinization: An example from the Samail ophiolite, Sultanate of Oman

Geochemical bioenergetics during low‐temperature serpentinization: An example from the Samail ophiolite, Sultanate of Oman

Near Surface Carbon Dioxide and Methane in Urban Areas of Costa Rica

Methane Dynamics in a Tropical Serpentinizing Environment: The Santa Elena Ophiolite, Costa Rica

Contact Info

Product

Resources

About