Figure 1b. Sulfur pyramids at Fort McMurray. Note the scale bar. Sulfur is also known as brimstone as it can form at the brim of volcanoes. It is a byproduct of refining oil sands.
Originally uploaded in NAGT:Our Resources:In the Trenches:2018 - Volume 8:In the Trenches - April 2018.
Image 182358 is a 718 by 947 pixel WebP
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Apr10 18