Microbial ecology of submerged marine caves and holes characterized by high levels of hydrogen sulphide

Canganella, Francesco; Bianconi, Giovanna; Kato, Chiaki; Gonzalez, Juan M.

doi:10.1007/s11157-006-9103-2

Cited by 20 publications

(15 citation statements)

References 35 publications

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“…The Capo Palinuro (CP in Fig. 1) massif is located along the coast of Campania region (Tyrrhenian Sea) and is characterized by 32 submarine caves, completely or partially submerged (Canganella et al, 2007), developed in Jurassic marine limestones and dolostones. Only 13 caves show active sulfuric acid springs with elevated concentration of H 2 S and temperature up to 25°C (Stüben et al, 1996).…”

Section: Geological Settingmentioning

confidence: 99%

New insights on secondary minerals from Italian sulfuric acid caves

D’Angeli¹,

Carbone²,

Nagostinis³

et al. 2018

IJS

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Abstract:Sulfuric acid minerals are important clues to identify the speleogenetic phases of hypogene caves. Italy hosts ~25% of the known worldwide sulfuric acid speleogenetic (SAS) systems, including the famous well-studied Frasassi, Monte Cucco, and Acquasanta Terme caves. Nevertheless, other underground environments have been analyzed, and interesting mineralogical assemblages were found associated with peculiar geomorphological features such as cupolas, replacement pockets, feeders, sulfuric notches, and sub-horizontal levels.In this paper, we focused on 15 cave systems located along the Apennine Chain, in Apulia, in Sicily, and in Sardinia, where copious SAS minerals were observed. Some of the studied systems (e.g., Porretta Terme, Capo Palinuro, Cassano allo Ionio, Cerchiara di Calabria, Santa Cesarea Terme) are still active, and mainly used as spas for human treatments.The most interesting and diversified mineralogical associations have been documented in Monte Cucco (Umbria) and Cavallone-Bove (Abruzzo) caves, in which the common gypsum is associated with alunite-jarosite minerals, but also with baryte, celestine, fluorite, and authigenic rutile-ilmenite-titanite. In addition, the core of alunite and jarosite, from these two systems, results enriched in PO 4 3-, clearly suggesting hypogene hydrothermal origin. Santa Cesarea Terme, Capo Palinuro, and Acqua Mintina caves show important native sulfur deposits, which abundantly cover walls, ceilings, and speleothems. Abundant copiapite, pickeringite, tamarugite, hexahydrate assemblages have been observed in the Calabrian systems; their association with pyrite and hematite would suggest they formed in very acidic conditions with pH ranging between 0 and 4.

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Section: Geological Settingmentioning

confidence: 99%

New insights on secondary minerals from Italian sulfuric acid caves

D’Angeli¹,

Carbone²,

Nagostinis³

et al. 2018

IJS

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“…Cuba is also rich in these types of environments. Sulfide bacteria are also richly developed in the "black holes" of Bahama (Schwabe & Herbert 2004) and in some classical Italian submarine caves (Canganella et al 2007). Humphreys (2006), following Moore (1999), assumes that countless such "underwater estuaries" penetrate the continents.…”

Section: Anchialine Systemsmentioning

confidence: 99%

Deuterobiosphere the Chemosynthetic Second Biosphere of the Globe. A First Review

Por¹

2008

Integrative Zoology

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With the discovery of Ophel, a chemosynthesis-based continental subterranean environment (Por 2007), it became evident that such environments, previously known only from the sea , are spanning the world as a parallel biosphere, the deuterobiosphere. In this preliminary contribution the different known biomes of the deuterobiosphere are reviewed and some general and comparative features are listed.

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“…Blue holes and sinkholes/cenotes are commonly characterized as unusual ecosystems with unique biogeochemical features, due to their relatively enclosed geomorphology and restricted water exchange (e.g., Pohlman, ; Sarbu et al, ). In particular, they have relatively isolated internal physical‐chemical transition layers with steep gradients in temperature, salinity, dissolved oxygen (DO), and hydrogen sulfide (H 2 S) and often contain anaerobic bottom waters (Canganella et al, ; Pohlman, ; Seymour et al, ). Some prominent examples of blue holes with anoxic bottom waters are the Great Blue Hole, Belize (Gischler et al, ), South Andros Black Hole, Bahamas (Schwabe & Herbert, ), blue holes in the Great Barrier Reef of Australia (Backshall et al, ), and the Clipperton Atoll blue hole, Île de Clipperto (Sachet, ).…”

Section: Introductionmentioning

confidence: 99%

Carbon Cycling in the World's Deepest Blue Hole

et al. 2020

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Blue holes are unique geomorphological features with steep biogeochemical gradients and distinctive microbial communities. Carbon cycling in blue holes, however, remains poorly understood. Here we describe potential mechanisms of dissolved carbon cycling in the world's deepest blue hole, the Yongle Blue Hole (YBH), which was recently discovered in the South China Sea. In the YBH, we found some of the lowest concentrations (e.g., 22 μM) and oldest ages (e.g., 6,810 years before present) of dissolved organic carbon, as well as the highest concentrations (e.g., 3,090 μM) and the oldest ages (e.g., 8,270 years before present) of dissolved inorganic carbon observed in oceanic waters. Sharp gradients of dissolved oxygen, H2S, and CH4 and changes in bacterially mediated sulfur cycling with depth indicated that sulfur‐ and/or methane‐based metabolisms are closely linked to carbon cycling in the YBH. Our results showed that the YBH is a unique and easily accessible natural laboratory for examining carbon cycling in anoxic systems, which has potential for understanding carbon dynamics in both paleo and modern oceans—particularly in the context of global change.

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Microbial ecology of submerged marine caves and holes characterized by high levels of hydrogen sulphide

Cited by 20 publications

References 35 publications

New insights on secondary minerals from Italian sulfuric acid caves

New insights on secondary minerals from Italian sulfuric acid caves

Deuterobiosphere the Chemosynthetic Second Biosphere of the Globe. A First Review

Carbon Cycling in the World's Deepest Blue Hole

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