The Walloon Coal Measures are a Late Jurassic geologic subgroup in Queensland, Australia. Deposited within the Surat Basin, it is considered Oxfordian to early Tithonian in age based on lead-uranium dating of tuffites within the unit.
The Walloon Coal Measures are a Late Jurassic geologic subgroup in Queensland, Australia. Deposited within the Surat Basin, it is considered Oxfordian to early Tithonian in age based on lead-uranium dating of tuffites within the unit.
Source: Wikipedia "Walloon Coal Measures" · CC BY-SA 4.0
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