These aren't my photos, so they don't count as part of the Geo 365 project- I'll label them that way so this comes up with this morning's post, though.
This is a view in FlashEarth of the area, backed out and moved eastward from this link. See that line of cones? Ed Taylor, from whom I had many great geology classes, often talked about lines of vents in the Central Oregon Cascades, and that there is one of them. It's almost certainly fault-controlled- the fault being a zone of weakness that rising magma can push into and follow more easily. It looks as if the eruption of the flow that created Clear Lake came from about the middle of that line, just based on its shape, but I'd be careful of making that as an actual claim. I haven't checked it on the ground, so I can't claim confidence as to where the actual vent was/is.
Eric Klemetti has some nice photos and a good discussion here.
Is This Your Hat?
2 years ago