practical techniques to improve limestone ore recovery
Practical Exploration Geology I - Underground Channel . Sep 18, 2015 The length of the channel is 0.35 – 1.5 m, width 5 – 10 cm and the depth 2 – 3 cm. Before taking the sample the surface area is cleaned with water in order to improve the observation of the sample area and remove mud clay deposits which have often built up on the walls ...