Naslov
Application of empirical model to predict background metal concentration in mixed carbonate-alumosilicate sediment (Adriatic Sea, Croatia)

Autori
Felja, Igor ; Romić, Marija ; Romić, Davor ; Bakić, Helena ; Pikelj, Kristina ; Juračić, Mladen

Izvornik
Marine Pollution Bulletin (0025-326X) 106 (2016), 1-2; 190-199

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Element distribution ; Natural variations ; Carbonate share ; Mali Ston Channel

Sažetak
A 96mlong sediment core (S10-33) fromtheMali Ston Channel (Adriatic Sea) showed large natural variation in carbonate share (between 1% and 95%) and concentration of elements. These variations indicate rather significant changes in fine-grained sediment that was deposited in this area during Younger Pleistocene and Holocene. Unaffected by anthropogenic influence, sediment in the core was used to determine background concentration of trace elements in sediment with various carbonate content. Here we propose a method of the normalization of trace elements to carbonate share, in order to assess natural/background concentration of metals in sediments consisting of carbonates and alumosilicates in various proportions. Six characteristic metals (Co, Cr, Cu, Ni, Pb, and Zn) that were normalized to carbonate share showed very good correlation, with much higher background concentrations in alumosilicate than in carbonate end member. Simple formulas were proposed to easily determine background concentration of these elements, in coastal and shelf depositional environments with mixed carbonate-alumosilicate sediments.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

POVEZANOST RADA