Iodine occurrence in the natural environment
Gospodarka Surowcami Mineralnymi – Mineral Resources Management 2007;23(2):17-26
KEYWORDS
ABSTRACT
Present analytical methods allow to mark a very low iodine and its compounds concentration in field conditions. As a result, during the last decade many papers related to the iodine distribution in the global scale were published. Quantity and its distribution in the Earth’s crust were estimated. In this article the mechanism of iodine aerosols origin and the role of marine organisms in this process were explained. Metastable compounds originated as a product of photolysis were identified; as a result a separate branch of science concerning their origin was created. The novelty is also identification of the anthropogenic radioactive iodine isotope 129I in natural environment. The isotope was applied in practice as a marker of contemporary geological processes dynamics and as an instrument of absolute age determination of geological formations in the lithosphere.
METADATA IN OTHER LANGUAGES:
Polish
Występowanie jodu w środowisku naturalnym
występowanie jodu, cykl jodowy, chemia jodu, izotopy jodu
Współczesne metody analityczne pozwalają na oznaczanie w warunkach polowych bardzo niskich koncentracji jodu i jego związków. W rezultacie w ostatniej dekadzie ukazało się wiele publikacji na temat rozkładu jodu w skali globu i jego transportu. Oceniono jego ilość i rozkład w skorupie ziemskiej. W artykule omówiono mechanizm powstawania aerozoli i roli odgrywanej w tym procesie przez organizmy morskie. Zidentyfikowano również obecność metastabilnych związków jodu powstających w wyniku fotolizy; w rezultacie powstała nowa gałąź nauki badająca ich powstawanie. Nowością jest także zidentyfikowanie w środowisku naturalnym obecności izotopu jodu 129I pochodzenia antropogenicznego. Znalazł on już praktyczne zastosowanie jako wskaźnik dynamiki współczesnych procesów geologicznych oraz jako narzędzie służące do oznaczania wieku bezwzględnego utworów geologicznych w litosferze.
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| eISSN: | 2299-2324 |
| ISSN: | 0860-0953 |
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