In situ

In situ is a latin phrase that simply means "in position", and in different contexts the term can refer to different things. The term "in situ" is ambiguous and can refer to:

• In situ oil sands mining: The process of extracting bitumen from oil sands deposits located underground. This method differs from the traditional surface mining method of bitumen extraction.
• In situ uranium mining: The process of injecting dissolving solutions underground which allows the uranium to flow through a system of wells to the ground above where it can be processed.