Naslov
Influence of naturally occurring organic and inorganic coatings on surface properties of mineral phases in recent marine sediments (Adriatic sea)

Autori
Ivanić, Maja ; Vdović, Neda ; Škapin, D. Srečo ; Sondi, Ivan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Rapport du 41e Congres de la CIESM = 41 CIESM Congress Proceedings / Ceramicola, Silvia ; Gačić, Miroslav ; Galgani, François ; Glöckner, Frank Oliver ; Souissi, Jamila Ben ; Henocque, Yves - : The Mediterranean Science Commission, 2016, 26-26

Skup
41st CIESM Congress

Mjesto i datum
Kiel, Njemačka, 12.09.2016. - 16.09.2016

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Sediments ; Organic matter ; North Adriatic Sea ; Central Adriatic Sea ; South Adriatic Sea

Sažetak
The influence of naturally occurring organic and inorganic compounds existing on the surfaces of mineral particles in marine sediments was investigated with respect to their surface physico-chemical and electrochemical properties. Bulk sediment and the clay fraction were investigated before and after removal of organic matter and Fe and Mn oxides/oxyhydroxides. It was found that organic matter induced aggregation of particles into larger organo-mineral aggregates and lowered their specific surface area (SSA) and cation exchange capacity (CEC). The role of organic coatings in the formation of surface charge of mineral particles was established. The influence of Fe and Mn oxides/oxyhydroxides on the surface reactivity of mineral particles was not consistent. Their presence increased SSA and reduced CEC of mineral particles.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

POVEZANOST RADA