Abundance, by Karen Lloyd
Callan reviews a new book about endangered species and ecosystem recovery in various parts of Europe.
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Worlds in Shadow, by Patrick Nunn
Callan reviews a book which sets out to perform a comprehensive accounting of submerged lands through the lens of science, but also with an anthropological emphasis on memory and memory’s longer-lived but more flamboyant cousin, mythology.
Footprints: In search of future fossils, by David Farrier
Callan reviews Scottish author David Farrier’s nonfiction exploration of humanity’s signatures on the geologic record.
Friday fold: Raven’s Ridge
Happy Friday, all! Two shots today from my friend Joe up in Vermont. He sends these from the Champlain Valley, at a place called Raven’s Ridge. It looks like an alternating series of sandstones and shales, arched into an anticline, perhaps during the Acadian Orogeny (??). According to the Nature Conservancy’s website, porcupines live in … Read more
Friday fold: The Blue Ridge Tunnel
Inside the Blue Ridge (in an 1850s-era railroad tunnel), Callan finds folds and boudinage that formed during Appalachian mountain-building.
A Brief History of Earth, by Andrew H. Knoll
A review of Andy Knoll’s newly-published book, “A Brief History of Earth: Four billion years in eight chapters.”
Friday fold: Lynchburg Group
On his way to get his COVID vaccine, Callan visits a new outcrop showing folded and faulted strata of the Neoproterozoic Lynchburg Group.
Friday fold: Colorado cluster
Friday means folds –
This week, we head to the Colorado Rockies for a butterfly-like presentation of a ptygmaticly folded granite dike within biotite schist.
Book report
Four recent reads: on starts, near-future technology, fictional far-future adventure, and the geology of the Archaean Eon.
Friday fold: Boscastle, Cornwall
A hilly region of Cornwall, U.K. features beautiful folding, and a fuzzy field assistant!
Strange creatures: book reviews about mysterious animals in the sea
Callan reviews two well-written books about of enigmatic creatures of the deep: eels and lobsters.
Friday fold: Sandy Hollow from the air
The Friday fold is spied below, in the Montanan landscape near Dillon, from an airplane high above…
Friday fold: Candigliano River, Italy
Reader Michael Hiteshaw spotted some amazing folds this week while watching Kayak Session TV on YouTube. Though there’s a dramatic arc of “saving” a deer, both Michael and I felt our eyes drawn to the canyon walls where there are gorgeous folds in several sizes and shapes, with an emphasis on chevron folds: The … Read more
Friday fold: Lopez Island tension gashes
The Friday fold shows some sheared quartz-filled tension gashes in sandstones of one of the San Juan Islands in Puget Sound.
Friday fold: Anticline in Glacier National Park
Some web research led to a serendipitous discovery and further exploration. Wherever you’re sheltering in place, you don’t have a view that’s this grand. Slip away for a few moments to the high country of Montana’s Glacier National Park, where an anticline may be seen in the towering cliffs…
Friday fold: Sorrosal Falls, Pyrenees
Folded Eocene turbidites exposed on the face of a spectacular waterfall in the Spanish Pyrenees. It’s Friday; enjoy this fold!
Friday fauxld: a false syncline in Titus Canyon
What day is it again? Hard to keep track in the days of raging coronavirus infections, but it is in fact Friday, which means that if you want a dose of the halcyon pre-COVID-19 days, you can enjoy this example of a false fold from Death Valley National Park’s Titus Canyon.
Friday fold: an Extreme(adura) geological history question
The Friday folds are revealed in an elegant cross-section through fantastic rocks in the Extremadura region of Spain.