Guano-related phosphate-rich minerals in European caves

Marco Vattano, Giovanna Scopelliti, Giuliana Madonia, Alica Chroňáková, Jean-Claude Nobécourt, Cristina Carbone, Jean-Yves Bigot, Aurelio Sanz-Arranz, Marjan Temovski, Didier Cailhol, Ilenia M. D’Angeli, Jo De Waele, Ilham Bentaleb, Nathalie Vanara, Václav Krištůfek, Ilham Bentaleb, Fernando Rull, Philippe Audra, Ermanno Galli

Risultato della ricerca: Article

2 Citazioni (Scopus)

Abstract

Guano is a typical deposit found in caves derived from the excretions of bats and in minor cases of birds. These organic deposits decompose and form a series of acid fluids and gases that can interact with the minerals, sediments, and rocks present in the cave. Over sixty phosphates are known and described from caves, but guano decay also often leads to the formation of nitrates and sulfates. In this study twenty-two European caves were investigated for their guano-related secondary minerals. Using various analytical techniques, seventeen phosphates, along with one sulfate (gypsum), were recognized as secondary products of guano decay. Among those minerals, some are very rare and result from the interaction of guano leachates with clays, fluvial deposits, or pyrite. Some of these minerals are even found only in the studied caves (spheniscidite, robertsite). The most common minerals belong to the apatite group. The common mineral association present in fresh decaying guano is brushiteardealite-gypsum, minerals that usually are not present in older deposits because of their higher solubility. Most minerals are in hydrated form because of the wet cave environment; however, some specific dry conditions may favor the presence of dehydrated minerals, such as berlinite, formed during guano combustion. Investigation on the acidity of guano piles shows pH values as low as 3.5 with an increase of acidity with age and depth. Finally, cave guano deposits should be better studied in the future because of their role in paleoenvironmental and paleoclimatic reconstructions and because it is important to better understand the origin of guano-related minerals, especially the phosphates and sulfates. Among all of the caves studied, Corona 'e sa Craba (Italy) and Domica-Baradla Cave (Slovakia-Hungary) are considered to be outstanding sites with respect to their phosphate mineralogy.
Lingua originaleEnglish
pagine (da-a)75-105
Numero di pagine31
RivistaInternational Journal of Speleology
Volume48
Stato di pubblicazionePublished - 2019

Fingerprint

guano
cave
phosphate
mineral
sulfate
gypsum
acidity
secondary mineral
bat
excretion
fluvial deposit
apatite
corona
leachate
analytical method
pyrite
solubility
pile
mineralogy
combustion

All Science Journal Classification (ASJC) codes

  • Geology
  • Earth-Surface Processes

Cita questo

Vattano, M., Scopelliti, G., Madonia, G., Chroňáková, A., Nobécourt, J-C., Carbone, C., ... Galli, E. (2019). Guano-related phosphate-rich minerals in European caves. International Journal of Speleology, 48, 75-105.

Guano-related phosphate-rich minerals in European caves. / Vattano, Marco; Scopelliti, Giovanna; Madonia, Giuliana; Chroňáková, Alica; Nobécourt, Jean-Claude; Carbone, Cristina; Bigot, Jean-Yves; Sanz-Arranz, Aurelio; Temovski, Marjan; Cailhol, Didier; D’Angeli, Ilenia M.; De Waele, Jo; Bentaleb, Ilham; Vanara, Nathalie; Krištůfek, Václav; Bentaleb, Ilham; Rull, Fernando; Audra, Philippe; Galli, Ermanno.

In: International Journal of Speleology, Vol. 48, 2019, pag. 75-105.

Risultato della ricerca: Article

Vattano, M, Scopelliti, G, Madonia, G, Chroňáková, A, Nobécourt, J-C, Carbone, C, Bigot, J-Y, Sanz-Arranz, A, Temovski, M, Cailhol, D, D’Angeli, IM, De Waele, J, Bentaleb, I, Vanara, N, Krištůfek, V, Bentaleb, I, Rull, F, Audra, P & Galli, E 2019, 'Guano-related phosphate-rich minerals in European caves', International Journal of Speleology, vol. 48, pagg. 75-105.
Vattano, Marco ; Scopelliti, Giovanna ; Madonia, Giuliana ; Chroňáková, Alica ; Nobécourt, Jean-Claude ; Carbone, Cristina ; Bigot, Jean-Yves ; Sanz-Arranz, Aurelio ; Temovski, Marjan ; Cailhol, Didier ; D’Angeli, Ilenia M. ; De Waele, Jo ; Bentaleb, Ilham ; Vanara, Nathalie ; Krištůfek, Václav ; Bentaleb, Ilham ; Rull, Fernando ; Audra, Philippe ; Galli, Ermanno. / Guano-related phosphate-rich minerals in European caves. In: International Journal of Speleology. 2019 ; Vol. 48. pagg. 75-105.
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abstract = "Guano is a typical deposit found in caves derived from the excretions of bats and in minor cases of birds. These organic deposits decompose and form a series of acid fluids and gases that can interact with the minerals, sediments, and rocks present in the cave. Over sixty phosphates are known and described from caves, but guano decay also often leads to the formation of nitrates and sulfates. In this study twenty-two European caves were investigated for their guano-related secondary minerals. Using various analytical techniques, seventeen phosphates, along with one sulfate (gypsum), were recognized as secondary products of guano decay. Among those minerals, some are very rare and result from the interaction of guano leachates with clays, fluvial deposits, or pyrite. Some of these minerals are even found only in the studied caves (spheniscidite, robertsite). The most common minerals belong to the apatite group. The common mineral association present in fresh decaying guano is brushiteardealite-gypsum, minerals that usually are not present in older deposits because of their higher solubility. Most minerals are in hydrated form because of the wet cave environment; however, some specific dry conditions may favor the presence of dehydrated minerals, such as berlinite, formed during guano combustion. Investigation on the acidity of guano piles shows pH values as low as 3.5 with an increase of acidity with age and depth. Finally, cave guano deposits should be better studied in the future because of their role in paleoenvironmental and paleoclimatic reconstructions and because it is important to better understand the origin of guano-related minerals, especially the phosphates and sulfates. Among all of the caves studied, Corona 'e sa Craba (Italy) and Domica-Baradla Cave (Slovakia-Hungary) are considered to be outstanding sites with respect to their phosphate mineralogy.",
author = "Marco Vattano and Giovanna Scopelliti and Giuliana Madonia and Alica Chroň{\'a}kov{\'a} and Jean-Claude Nob{\'e}court and Cristina Carbone and Jean-Yves Bigot and Aurelio Sanz-Arranz and Marjan Temovski and Didier Cailhol and D’Angeli, {Ilenia M.} and {De Waele}, Jo and Ilham Bentaleb and Nathalie Vanara and V{\'a}clav Krištůfek and Ilham Bentaleb and Fernando Rull and Philippe Audra and Ermanno Galli",
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T1 - Guano-related phosphate-rich minerals in European caves

AU - Vattano, Marco

AU - Scopelliti, Giovanna

AU - Madonia, Giuliana

AU - Chroňáková, Alica

AU - Nobécourt, Jean-Claude

AU - Carbone, Cristina

AU - Bigot, Jean-Yves

AU - Sanz-Arranz, Aurelio

AU - Temovski, Marjan

AU - Cailhol, Didier

AU - D’Angeli, Ilenia M.

AU - De Waele, Jo

AU - Bentaleb, Ilham

AU - Vanara, Nathalie

AU - Krištůfek, Václav

AU - Bentaleb, Ilham

AU - Rull, Fernando

AU - Audra, Philippe

AU - Galli, Ermanno

PY - 2019

Y1 - 2019

N2 - Guano is a typical deposit found in caves derived from the excretions of bats and in minor cases of birds. These organic deposits decompose and form a series of acid fluids and gases that can interact with the minerals, sediments, and rocks present in the cave. Over sixty phosphates are known and described from caves, but guano decay also often leads to the formation of nitrates and sulfates. In this study twenty-two European caves were investigated for their guano-related secondary minerals. Using various analytical techniques, seventeen phosphates, along with one sulfate (gypsum), were recognized as secondary products of guano decay. Among those minerals, some are very rare and result from the interaction of guano leachates with clays, fluvial deposits, or pyrite. Some of these minerals are even found only in the studied caves (spheniscidite, robertsite). The most common minerals belong to the apatite group. The common mineral association present in fresh decaying guano is brushiteardealite-gypsum, minerals that usually are not present in older deposits because of their higher solubility. Most minerals are in hydrated form because of the wet cave environment; however, some specific dry conditions may favor the presence of dehydrated minerals, such as berlinite, formed during guano combustion. Investigation on the acidity of guano piles shows pH values as low as 3.5 with an increase of acidity with age and depth. Finally, cave guano deposits should be better studied in the future because of their role in paleoenvironmental and paleoclimatic reconstructions and because it is important to better understand the origin of guano-related minerals, especially the phosphates and sulfates. Among all of the caves studied, Corona 'e sa Craba (Italy) and Domica-Baradla Cave (Slovakia-Hungary) are considered to be outstanding sites with respect to their phosphate mineralogy.

AB - Guano is a typical deposit found in caves derived from the excretions of bats and in minor cases of birds. These organic deposits decompose and form a series of acid fluids and gases that can interact with the minerals, sediments, and rocks present in the cave. Over sixty phosphates are known and described from caves, but guano decay also often leads to the formation of nitrates and sulfates. In this study twenty-two European caves were investigated for their guano-related secondary minerals. Using various analytical techniques, seventeen phosphates, along with one sulfate (gypsum), were recognized as secondary products of guano decay. Among those minerals, some are very rare and result from the interaction of guano leachates with clays, fluvial deposits, or pyrite. Some of these minerals are even found only in the studied caves (spheniscidite, robertsite). The most common minerals belong to the apatite group. The common mineral association present in fresh decaying guano is brushiteardealite-gypsum, minerals that usually are not present in older deposits because of their higher solubility. Most minerals are in hydrated form because of the wet cave environment; however, some specific dry conditions may favor the presence of dehydrated minerals, such as berlinite, formed during guano combustion. Investigation on the acidity of guano piles shows pH values as low as 3.5 with an increase of acidity with age and depth. Finally, cave guano deposits should be better studied in the future because of their role in paleoenvironmental and paleoclimatic reconstructions and because it is important to better understand the origin of guano-related minerals, especially the phosphates and sulfates. Among all of the caves studied, Corona 'e sa Craba (Italy) and Domica-Baradla Cave (Slovakia-Hungary) are considered to be outstanding sites with respect to their phosphate mineralogy.

UR - http://hdl.handle.net/10447/359184

M3 - Article

VL - 48

SP - 75

EP - 105

JO - International Journal of Speleology

JF - International Journal of Speleology

SN - 0392-6672

ER -