6:21

Tellus geochemical sampling: collecting soil samples

28:07

Joseph Tang - Geochemistry in Mineral Exploration

53:03

Heavy Mineral Separation - from rock to mineral mount

8:38

Sediment Sampling

8:23

Collecting Water Samples for Mercury Analysis

20:50

Sample Preparation for Geochemistry and Mining Samples

4:49

Porphyry and Epithermal mineral Deposits

3:54

Stream Sed Sampling