Geology · Petroleum Geology
In which organic end-products or geological materials is Vanadium notably found in concentrated amounts as organic complexes?
- 1Charcoal, amber, and lignite deposits only
- 2Biogas, bio-ethanol, and plant wood
- 3Peat moss, natural gas, and anthracite only
- 4Crude oil, coal, oil shale, and tar sands✓
Correct answer
Crude oil, coal, oil shale, and tar sands
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