Discussion
Which one of the following is the youngest "Continental Flood Basalt Province" ?
Answer: B
The youngest of these provinces is the Columbia River Province.
The Columbia River flood basalts of the north-western United States erupted mainly between about 17 and 15 million years ago, in the Miocene, which makes them the youngest major continental flood basalt province.
The others are much older: the Deccan Traps about 66 million years (at the end of the Cretaceous), the Parana-Etendeka province about 133 million years (Early Cretaceous), and the Siberian Traps about 252 million years (end of the Permian).
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