The present study focuses on how to assess the reality of soil pollution by heavy elements on the right bank of Mosul City after 2017. Seventy samples are collected from the right-bank soils depending on the random system. Chemical analysis is conducted using the ICP-MS technique to determine the concentrations of the heavy elements (As, Cd, Cr, Ni, Pb, Zn) in these samples, and then to calculate the pollution factors: Geoaccumulation Index, Enrichment Factor, and Contamination Factor. The average crust is adopted for the comparison and definition of the permissible limits for calculating the pollution factors. The results of the chemical analysis show that the concentrations of the elements (As, Cd, Cr, Ni, Pb, Zn) are higher than the average crust by a ratio of 100%, 85.3%, 44.29%, 100%, 37.14%, 24.28% respectively, which have an effect on the results of the pollution factors, and this refers to an addition of heavy elements to soil of the right bank of Mosul City as a result of human activity (anthropogenic). These activities are the military operations and the use of different types of weapons such as bombs, missiles, ammunition and the remnants thereof, which contain many heavy metals as well as fumes and gases emitted from burning waste, vehicle exhaust, electricity generators, liquid waste in urban and industrial areas, sewage water, fertilizers and pesticides. To know the role of physicochemical characteristics and their contribution to the distribution of heavy elements in the soil, pH and electrical conductivity are measured and the organic matter content is determined. The results show a rate of 7.8, 27.8, and 4.6, respectively.

The radiolarian chert rocks are one of the most important indications of the existence of ophiolites because they are a source of silica supply. These rocks have been studied to refute and reject the idea that ophiolites do not existed. The Si/(Si+Al+Fe+Ca) ratio in the radiolarian chert indicates that the silica is of biogenic origin and adds SiO2 from the shale fraction through diagenetic processes. The high values of Fe2O3 content indicate the hydrothermal effect during precipitation. This effect is controlled by the distance between the sediments and the mid-oceanic ridge or sea floor metamorphism. The phosphorus could be a direct result of volcanic activity associated with ophiolitic rocks, whereas, the negative correlation coefficient of phosphorous with calcium (r = -0.53) supports the idea that the source of phosphorous is volcanic activity that is not related to the carbonate fluorapatite mineral. REEs shows a basic difference as a positive cerium anomaly in section Q2 and a negative cerium anomaly in section Q1. The Al-Fe-Mn diagram shows that all samples fall into the field I non-hydrothermal zone, but in the SiO2 vs Al2O3 diagram the samples of the Q1 section fall into the hydrothermal field, and samples of the Q2 section fall into the non-hydrothermal field. The input materials in Qulqula radiolarian chert come from terrigenous sediments in both sections. On the other hand, the Al/(Al+Fe+Mn) ratio range, (between 0.61 to 0.70), is very close to the average shale composite value, (0.6.19), which may reflect the contribution from continental and non-hydrothermal sediments, while the lower values of this ratio reflect hydrothermal source input. The MnO2 /TiO2 ratios ranged between 0.06 to 2.37 in section Q1 which represents typical characteristics of the deep ocean, trenches, and basaltic plateau sediments.