Blast patterns or sequences used to influence the path of the blast
Blast patterns or sequences used to influence the path of the blast
Shares in a company with voting right but no fixed or assured dividend other than the performance of the stock price
A gradual decrease between geologic horizons
An ore of niobium, FeNb2O6
An line on a map or chart used to depict topography and surface
Mining claims that have a common side or boundary
Timbers laid at right angles to each other to create a vertical or horizontal support structure
A wide crack, fissure or opening in rock
A period existing 146-65 million years ago
A stabilized part of the Earth’s crust, usually centrally attached to the continents