For those not tuned in to Southwest Geology, a sill is an igneous intrusive that has inserted itself parallel to the surrounding strata (a dike runs at angles to the strata). Palisade Sill is a huge intrusive in northern New Mexico between Raton and Taos on Highway 64. You won’t miss it when you head west into the canyon out of Cimarron. The sill is made of Monzonite, which is on the continuum between syenite (very light in color) and diorite (medium in color) and has plagioclase and orthoclase feldspars in approximately equal amounts. In short, it is a lighter than granite, but generally similar.
My favorite aspect of this imposing formation is that the joint systems are at nearly right angles, which leaves enormous faces and a ragged, blocky crest at the skyline. And, of course, lots of rubble along the stream below. Here are some images of the crestline.
After 33 years of collecting moths in the Pikes Peak Region, I finally have begun to let it go to the C. P. Gillette Museum in Fort Collins at Colorado State University. The first installment, 36 drawers of mostly Noctuidae (the owlet moths) were shrink-wrapped and dispatched on August 29. One drawer is shown here.
And here is the first load.
And in their new home.
Many more to go in the next few weeks. Sad to see them go, but I know that they’re in a better place. (!)
Glen Cove, Pikes Peak treeline, on Sedum rhodanthum flowers.
Cat on a Hot Foam Roof
Gun Control, Olympic Skier, Screech Owl, Falcon, Hopping Bunny, Happy Cactus
What is WRONG with them? I didn’t even get a sad-face emoticon. Nothing.
Ever write limericks? It’s not literature, for sure. But there was a contest once, so I wrote this.
On Being Challenged to Write a Limerick