دراسة الجيوماتيكية للترسبات العالقة في نماذج مختارة من نهر دجلة ما بين جسر الصرافية وجسر الشهداء، بغداد-العراق

الملخص EN

The geomatics study is one of the techniques used in the geochemistry to improve and determine the chromatic anomalies using geographic information system (GIS), and to apply statistical analysis to identify the quality of elements and chemical compounds that affect the color change implications.

Therefore, the present study involves a geometical study of the chemical elements (Ca, Mg, Al, Fe, Mn, Pb, Co, Ni, Cd, As, Cr, Tl, Zn, Cu) in 9 suspended sediment samples that were collected along Tigris River between the Sarrafiya bridge and Shuhadaa bridge(Baghdad) and were analyzed by Inductively Couple Plasma-Mass Spectrometry (ICP-MS).The elements (Pb, Cu, Zn) showed a strong positive relationship (r> 0.90) with colors (red, green and blue), indicating the contribution of these elements in giving light colors to the color reflections of the studied samples which possess high concentrations of these elements.

The elements (Ca, Mg, Al, Mn, Ti, Co, Ni, Cd) have a negative correlation with these colors, indicating the contribution of these elements to the dark coloration of the reflections of these water suspended sediments.