Differential thermal analysis of peat and peat humic acids in relation to their origin
2010
Klavins, M., University of Latvia, Riga (Latvia). Faculty of Geography and Earth Sciences | Ansone, L., University of Latvia, Riga (Latvia). Faculty of Chemistry | Tjutrins, J., University of Latvia, Riga (Latvia). Faculty of Chemistry | Silamikele, I., University of Latvia, Riga (Latvia). Faculty of Geography and Earth Sciences | Purmalis, O., University of Latvia, Riga (Latvia). Faculty of Geography and Earth Sciences
We studied the thermal decomposition of peat and peat humic acids of two peat profiles from ombrotrophic bogs in Latvia in relation to their origin. The results of differential thermal analysis show that the character of peat decomposition significantly depends on the composition, age, and origin of peat. Studies of parameters of thermal decomposition help to identify the differences between peat and the corresponding humic acids, as well as links between the peat age, decomposition degree, and character of the decomposition process, thus ascertaining maturity of organic material. Hence, thermal analysis methods can be used for identification of the origin of peat and peat humic acids.
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