Learn about the types of geology the Yukon Geological Survey studies

Surficial geology is the study of unconsolidated sediments such as:

• gravel;
• sand;
• silt; and
• clay.

  These sediments were largely deposited within the last 2.6 million years, during the Quaternary period. They form the foundation on which we live our lives.

Our geologists map, describe and interpret the origin and evolution of surficial sediments.

Processes that change surficial deposits include:

• water;
• glaciers;
• wind;
• gravity; and
• climate.

  
Our projects have many uses. These include:

• landscape hazards (permafrost and landslides) for public safety;
• aggregate distribution for construction;
• sediment genesis for mineral exploration;
• soil properties for infrastructure development and community planning;
• valley evolution for understanding placer gold deposits; and
• the history of glaciers and how they relate to the paleoclimate.

  
The surficial geology group:

• engages with the public; and
• takes on external research opportunities through collaborative projects with universities.

  
For more information on surficial geology, contact YGS-surficial@yukon.ca.

Our geologists study rocks that have the potential to provide energy for the Yukon. We look for:

• oil;
• gas; and
• geothermal energy.

  
Oil and gas are found in sedimentary rocks. Known oil and gas resources are located in northern and southeast Yukon.

Geothermal heat is found in different types of rocks. Early research shows Southern Yukon may hold enough heat to become a useful source of energy. Geothermal heat is a renewable resource and can:

• directly heat buildings; and
• in some cases, produce electricity.

  
For more information on energy geology, contact YGS-bedrock@yukon.ca.