Bat urea-derived minerals in arid environment. First identification of allantoin, C4H6N4O3, in Kahf Kharrat Najem Cave, United Arab Emirates

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F17%3A00475834" target="_blank" >RIV/67985831:_____/17:00475834 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.5038/1827-806X.46.1.2001" target="_blank" >http://dx.doi.org/10.5038/1827-806X.46.1.2001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5038/1827-806X.46.1.2001" target="_blank" >10.5038/1827-806X.46.1.2001</a>

Result language

angličtina

Original language name

Bat urea-derived minerals in arid environment. First identification of allantoin, C4H6N4O3, in Kahf Kharrat Najem Cave, United Arab Emirates

Original language description

Kahf Kharrat Najem Cave is a small cave in United Arab Emirates (UAE) that hosts a bat colony which is the source of guano deposits and peculiar centimeter-long yellowish stalactites. The mineralogy and geochemistry of these deposits were analyzed using powder X-ray diffraction (XRD), energy dispersive X-ray spectroscopic microanalysis (EDX), scanning electron microscope (SEM), and stable isotope composition (.delta.13C and .delta.15N). Urea CO(NH2)2 was found to be the main compound of these stalactites, while allantoin C4H6N4O3 was found to be an accessory urea byproduct. This paper is the first to mention allantoin in a cave environment. We also identified rare sulfate minerals (aphthitalite, alunite) and phosphates that probably correspond to the archerite-biphosphammite series. The occurrence of these rare bat-related minerals is due to the extremely dry conditions in the cave, which accounts for the extraordinary preservation of the guano deposits and allows for the crystallization of these very soluble minerals.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10505 - Geology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Journal of Speleology

ISSN

0392-6672

e-ISSN

—

Volume of the periodical

46

Issue of the periodical within the volume

1

Country of publishing house

IT - ITALY

Number of pages

12

Pages from-to

81-92

UT code for WoS article

000395945600007

EID of the result in the Scopus database

2-s2.0-85012284431