The Green River Formation contains the largest oil shale deposits in the world. The 213 billion tons of oil shale contain an estimated 2.38 × 1011 m3 (1.5 trillion US barrels) of shale oil. This is a tribute to the high volume of organic material that was buried. The source of the organic material was probably cyanobacteria, which thrive in warm alkaline lake conditions.
ð ə WORD_BOUNDARY ɡ ɹ iː n WORD_BOUNDARY ɹ ɪ v ə ɹ WORD_BOUNDARY f ɔ ɹ m eɪ ʃ ə n WORD_BOUNDARY k ə n t eɪ n z WORD_BOUNDARY ð ə WORD_BOUNDARY l ɑ ɹ d̠ʒ ɪ s t WORD_BOUNDARY ɔɪ l WORD_BOUNDARY ʃ eɪ l WORD_BOUNDARY d ɪ p ɑ z ɪ t s WORD_BOUNDARY ɪ n ð ə WORD_BOUNDARY w ɜː l d WORD_BOUNDARY ð ə WORD_BOUNDARY t uː h ʌ n d ɹ ɪ d WORD_BOUNDARY θ ɜː t iː n WORD_BOUNDARY b ɪ l iə n WORD_BOUNDARY t ʌ n z WORD_BOUNDARY ʌ v WORD_BOUNDARY ɔɪ l WORD_BOUNDARY ʃ eɪ l WORD_BOUNDARY k ə n t eɪ n WORD_BOUNDARY ʌ n WORD_BOUNDARY ɛ s t ɪ m eɪ t ɪ d WORD_BOUNDARY t uː WORD_BOUNDARY θ ɜː t i WORD_BOUNDARY eɪ t WORD_BOUNDARY t aɪ m z WORD_BOUNDARY w ʌ n WORD_BOUNDARY θ aʊ z ə n d WORD_BOUNDARY ɪ l ɛ v ə n WORD_BOUNDARY ɛ m WORD_BOUNDARY θ ɹ iː WORD_BOUNDARY w ʌ n WORD_BOUNDARY f aɪ v WORD_BOUNDARY t ɹ ɪ l iə n WORD_BOUNDARY j uː ɛ s WORD_BOUNDARY b æ ɹ ə l z WORD_BOUNDARY ʌ v WORD_BOUNDARY ʃ eɪ l WORD_BOUNDARY ɔɪ l WORD_BOUNDARY ð ɪ s WORD_BOUNDARY ɪ z WORD_BOUNDARY ʌ WORD_BOUNDARY t ɹ ɪ b j uː t WORD_BOUNDARY t ə WORD_BOUNDARY ð ə WORD_BOUNDARY h aɪ WORD_BOUNDARY v ɑ l j uː m WORD_BOUNDARY ʌ v WORD_BOUNDARY ɔ ɹ ɡ æ n ɪ k WORD_BOUNDARY m ə t ɪ ɹ i ə l WORD_BOUNDARY ð æ t WORD_BOUNDARY w ʌ z WORD_BOUNDARY b ɛ ɹ i d WORD_BOUNDARY ð ə WORD_BOUNDARY s ɔ ɹ s WORD_BOUNDARY ʌ v ð ɪ WORD_BOUNDARY ɔ ɹ ɡ æ n ɪ k WORD_BOUNDARY m ə t ɪ ɹ i ə l WORD_BOUNDARY w ʌ z WORD_BOUNDARY p ɹ ɑ b ə b l i WORD_BOUNDARY s aɪ ʌ n ɑ b ʌ k t ɪ ɹ i ə WORD_BOUNDARY w ɪ t̠ʃ WORD_BOUNDARY θ ɹ aɪ v WORD_BOUNDARY ɪ n WORD_BOUNDARY w ɔ ɹ m WORD_BOUNDARY æ l k ə l aɪ n WORD_BOUNDARY l eɪ k WORD_BOUNDARY k ə n d ɪ ʃ ə n z WORD_BOUNDARY