Demon Copperhead, by Barbara Kingsolver

Now here’s an interesting book: a retelling of David Copperfield (by Charles Dickens) but set in modern-day Appalachia, specifically Lee County, in the furthest-west tip of Virginia, where it makes a triangular insert between Kentucky and Tennessee. The arc of the original bildungsroman is a rags-to-riches tale set in Victorian England. Because of the physical … Read more

Paleoslump features and fluvial incision in the Conemaugh Group, West Virginia

The answer to this week’s geological interpretation contest is revealed, sort of. Annotations, GigaPans, and outcrop detail photos reveal the story of equatorial fluvial incision and ancient slumping during the Carboniferous ice ages.

Liesegang banding in Pennsylvanian sandstones, Bolt Mountain, West Virginia

While out at the eastern section of NAGT’s annual meeting last weekend in West Virginia, I participated in a field trip to look at the stratigraphy of the Bolt Mountain section of Pottsville Group strata. One thing that was particularly eye-catching about the sandstones we saw was that many of them had been stained by … Read more

Friday fauxld: Pennsylvanian plant fossil

Have a gander at this: Given that this is a Friday on Mountain Beltway,  you might expect to see a fold here, and indeed, there’s something wavy and high-contrast running through the center of this sample. But that’s no fold. It’s a fossil plant! A “reed” of some kind, I guess. You can also see … Read more

A second look at the mass transport deposit on Corridor H

Remember this past winter when Alan Pitts and I found what we interpreted to be a mass transport deposit (a submarine landslide/slump) along the new section of Corridor H leading up the Allegheny front? Well, I was back out there yesterday, with Dan Doctor (USGS Reston) and Jay Kaufman (University of Maryland). One new thing … Read more

On ignorance, bias, data, and the tentative nature of (scientific) interpretations

A young-Earth creationist reinterprets one of Callan’s blog posts in light of a Biblical flood. Callan responds with a demonstration of how new information can change a true scientist’s mind, but no amount of data can convince someone whose conclusions are based on faith rather than empirical data.

A marine incursion in the Hampshire Formation?

I went out last Tuesday to Corridor H, the exemplary new highway cutting through the Valley and Ridge province of eastern West Virginia. Joining me was former student Alan Pitts, a devotee of Corridor H from way back in the early days when we just called it “New Route 55.” The boondoggle highway is now … Read more

Living in the Appalachian Forest, by Chris Bolgiano

Last week, I finished reading Living in the Appalachian Forest: True Tales of Sustainable Forestry, by Chris Bolgiano. It’s a grab-bag of stories from the forested mountains of the south-central Appalachians, ranging from Pennsylvania down to Kentucky and maybe Georgia, too. West Virginia and Virginia get the most attention. The driving question behind the book … Read more

“Got migmatite?”

Had this brainstorm a few weeks back (or maybe months?). Been meaning to blog it up, but hadn’t gotten the chance to flesh it out. The geologic map of the Commonwealth comes from Chuck Bailey of William & Mary, who gave me permission to use it for this project. Anyhow – do you think there … Read more

Friday fold: the Devil’s Backbone

The Friday fold is a guest photo by James Edward Bailey, a 5th grade student from Reston, Virginia. It is the anticline shown is known as “the Devil’s Backbone,” located near Marlinton, West Virginia, right on the boundary between the Valley & Ridge province and the Appalachian Plateaus. It clearly shows differential weathering of weaker layers and tougher layers. …Also some lovely fall colors!

Giant City State Park, Illinois

Giant City State Park is a patch of protected forest south of Carbondale, Illinois, where there are some pretty cool exposures of Pennsylvanian-aged Makanda Sandstone. Here’s a typical look at one: Notice the deep chasm on the right. This leads, maze-like, to other flat-bottomed and vertically-walled canyons: The orthogonal joint sets produces some nice tall, … Read more

Conglomerate from Dolly Sods

While my focus was more on bugs and plants than geology this time around, I did hike a new trail at Dolly Sods this past weekend, and on that trail I found several nice boulders of conglomerate. These stood out as being much coarser than the pervasive quartz sandstone of the Pennsylvanian-aged Conemaugh Group which … Read more