noun
tar sand; oil sand
A type of unconventional petroleum deposit; the term is used in geology and energy contexts.
カナダには広大なタールサンドの埋蔵量がある。
Canada has vast reserves of tar sands.
Variant with a middle dot, sometimes used for clarity or in technical contexts.
Synonym; 'オイルサンド' is also used, but 'タールサンド' is the more common direct loanword.
Loanword from English 'tar sand'.