Blocks of tar sand in an old quarry in Napo Province, Ecuador.

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The rocks are part of the oil bearing Hollin Geological formation which supplies Ecuador's Amazonian oil fields.

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Size: 5472px × 3648px
Location: Ecuador
Photo credit: © Morley Read / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: amazon, america, bitumen, bituminous, black, crude, ecuador, environment, flow, formation, geological, geology, heavy, hollin, napo, natural, oil, oilfield, petroleum, production, quarry, rock, sand, seep, shale, south, tar