Description parameters of rock masses and minerals include their colours as well. Colours appear in daylight for surfaced rock masses are changing slightly due to weathering layers which have been covering its surface gradually. Healthy human eyes can manage to differentiate visible light spectrum to identify colours of substances including rock masses. Then visible blackish colours of magnetite minerals, reddish colours of Terra-Rosa soils, greenish colours of weathered copper ore, pure white of salt minerals and many others are differentiable by naked eyes. Different colours and homogeneity of colour distribution for natural rocks are also main grading parameters of natural rock surfaces. In addition, colour can also be parameter to identify weathered rock surfaces. Outcrop rock mass surfaces or rock discontinuity surfaces which could be influenced by weathering factors, have their altered surface colours in general that, those colours can be different from the original rock colours. In this study, colour changes were determined in digital manner by obtaining rock surfaces' Red, Green, Blue digital colour (RGB) values. Digital colour differences have been then analyzed more specifically to evaluate rock weathering and colour changes.
Vibrational waves can progress far away from their sources. Therefore, such waves have the capacity to cause damage to human environments. Such waves originating from mining activities (especially rock blasting) should be studied to understand their propagation mechanism in fractured rock masses. To determine how the vibrational shock wave is distributed in fractured rock masses, laboratory tests were performed. Rock samples with different discontinuity geometry combinations were tested by applying exactly the same vibrational shock to the test samples. The cumulative effects of exposure to vibrational shock waves and the propagation of waves at discontinuities in the rock samples were observed from the other end of the sample using vibration seismographs. The measured data indicated which rock mass properties have the most effect on wave propagation. In this study, different discontinuity systems were used in the rock specimens. These discontinuity systems were referred to as the groups 1, 2, 3 and 4 models. Based on the results of the vibration tests, each group was determined to have behaved differently in terms of wave propagation.
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