Fig. 2: Scatter plots of element accumulation rates in the Red Sea sediment cores.
From: Declining nutrient availability and metal pollution in the Red Sea
a–o, Total organic carbon (TOC), total nitrogen (TN), Na, Mg, Si, P, S, Ca, V, Cr, Fe, Ni, Cu, Zn, and Cd element accumulation rates (EAR, μg cm-2 decade-1, dry weight) in sediment cores collected from the South (blue lines and squares, N = 19) and North (red lines and circles, N = 24) Red Sea. The EAR data were standardized and presented in different orders of magnitude for comparison, as noted in each legend. The accumulation rates of TOC, Na, Mg, Si, S, Ca, and Fe were multiplied by a factor ranging from 1 to 250, whereas those of TN, P, V, Cr, Ni, Cu, Zn, and Cd were divided by a factor ranging from 1 to 1/2500. Values below or above the y-axis scale are labeled and highlighted with a black symbol. Smooth lines were constructed using the adjacent-averaging method using OriginPro 2022 software.
