Effect of pre-agglomeration on the flotation of fine-sized gold particles in the presence of vegetable oils

In this study, the effect of pre-agglomeration on the flotation of fine-sized gold ore containing 11.3 g/t Au was investigated using olive and soybean oils. Firstly, the ore was floated using only collectors. Secondly, the ore was floated in the presence of vegetable oils and collectors. Finally, the effect of pre-agglomeration with graphite particles was tested again in the presence of two vegetable oils and collectors. In the first case, 93.8% gold recovery with 28.0 g/t Au grade was achieved. The gold recovery decreased to 79.8% with increased gold grade of 46.0 g/t Au when olive oil was used in flotation. Finally, the gold recovery decreased to 75.2% with an increased gold grade of 51.5 g/t when pre-agglomeration step was applied with the use of olive oil. Under the same flotation conditions, pre-agglomeration stage reduced the gold recovery but with increased gold grades

High-resolution shallow seismic and palynological studies in determining hydrothermal activity in Gulbahce Bay

Thermal hot waters are known in the terrestrial areas in the vicinity of Gulbahce Bay. The main target of this study is to examine the presence of these hot water sources. A high-resolution shallow seismic study (3.5 kHz) was used to determine the high potential hydrothermal area in Gulbahce Bay and sediment samples were collected by gravity corer at 14 points for palynological analysis. The palynological findings obtained from these core samples were confronted with a 'Reference sample', which came from outside the study area and is thought to be able to change with the thermal features of environment.