Exploring topsoil geochemistry from the CoDA (Compositional Data Analysis) perspective: The multi-element data archive of the Campania Region (Southern Italy)

摘要: article i nfo Soil geochemistry is often investigated by considering a large number of variables, including major, minor and trace elements. Some the variables are usually highly correlated due to coherent geochemical behaviour, but effect anthropic factors tends increase data variability, sometimes obscuring natural relationships governing their distributions. In this framework it may be difficult identify features linked phenomena as well separate geogenic anomaly from anthropogenic ones. Consequently identification back- ground/baseline values seriously compromised. However, knowledge about these reference terms funda- mental manage protect resources on different scales. Moreover, adequate estimations background/ baseline possible only if sufficient chemical analyses stored in complex repositories. contribution multi-element archive Campania Region (Southern Italy) was explored CoDA (Compositional Data Analysis) multivariate perspective characterise its structure. The contains abundance Al, As, B, Ba, Ca, Co, Cr, Cu, Fe, K, La, Mg, Mn, Mo, Na, Ni, P, Pb, Sr, Th, Ti, V Zn (mg/kg) determined 3535 new topsoils information coordinates, geology land cover. Under proportionality fully taken into account enhancing relative