Bursa-Bilecik-Eskişehir Arasındaki Bölgedeki Jeokimyasal Anomalilerin Jeoistatistiksel Yöntemlerle İncelenmesi
Arslan, Çağatay Alp
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Considerable amount of specimen and data were used in the geochemical anomaly studies which were performed by MTA in the region among Bursa-Bilecik-Eskişehir, yet geostatistical analyses were not inclued in the studies. In this study, determining potential ore deposits of the relevent region by the geostatistical analyses are aimed. In the scope of this thesis, the region among Bursa-Bilecik-Eskişehir, where involves 1/25000 scale H23-c1, c3, c4, d3, H24-c3, c4, d2, d3, d4, H25-c4, d3, d4, İ23-a2, b1, b2, İ24-a1, a2, b1, b2, İ25-a1, a2, b1, b2 topographic map sections, is selected as studying field. The anomaly results of geochemical studies on 2896 each of stream sediment, 22 each of rock and 178 each of washbowl specimens for heavy mineral analysis, which were taken by MTA from 3500 km² area, were analyzed with geostatistical methods. The soil and rock specimens were analyzed for Cu, Pb, Zn, As, Ag, Sb, Mo elements. Stream sediment specimens were taken as 1 each in 1 km² area and heavy mineral specimes were generally taken as 1 in 10 km2 from the streams in the area. Variables’ correlations on the specified anomaly field were determined and the data of Cu, Pb ve Zn were approved to be used in the geostatistical analyses. Variograms were calculated in cardinal points and their experimental variograms were plotted with Gamlib Gs+ and Surfer. Areal distribution of regional variables were found isotropic as conclusion and global modeling was iv applied on these data. Finally, estimations were made with the Kriging method on Gs+ software, and maps were created with these results to show regional correlations, in order to estimate and plot the areal extent of the possible ore deposits. Cu, Pb ve Zn anomalies are centred upon the west and southeast of the site according to the created maps. As these three elements are paired with, they indicate common high anomaly values on H23-c-4, İ25-b-1 ve İ25-b-2 sections. Created maps provide pre-understanding about making detailed research on these three scaled sections which can indicate potential sources.