Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Mount McLoughlin:

"

The volcano shows magnetic high points to the east of its main cone, suggesting that it has normal magnetic polarization that corresponds to an age of less than 700,000 years.[7] Other evidence that the volcano is geologically young include its symmetrical shape on the western and southern sides, its well-preserved lava flow deposits, and the absence of soil formation on many of its flow deposits.[7]