Philip S Prince, Geologist https://validator.w3.org/feed/docs/rss2.html Moving mountainsides: The giant quartzite landslides of the Macks Mountain area of the Virginia Blue Ridge STORE The Blacks Beach landslide: Why did part of the beach rise as the cliffside slid down? Lidar imagery reveals details of debris flow movement in the eastern Blue Ridge Mountains of North Carolina Philip Prince, Geologist Formation of anticlines and synclines above sandbox model normal faults with changing dip Pleistocene Coastal Plain sand dunes and the value of pattern recognition in LiDAR interpretation A sandbox model of China’s “other” Rainbow Mountains that fits in the palm of your hand Lidar highlights impressive landslide density on the southern Appalachian Blue Ridge Escarpment, western North Carolina The geology lab cross-cutting relationships exercise as a sandbox model Erosion and scour in sandbox model debris flows (microbeads and cohesive substrate) Sandbox model anticlines formed above normal faults during extension Blowout landslides, part 2: Material movement, and did anything actually “blow out?” Sandbox models with high-displacement thrust faults compared to features of some Canadian Rockies sections Another track left by huge boulders visible with lidar, Big South Fork National River, Kentucky Negative inversion of a sandbox model thrust fault This boulder carved a satisfying track as it slid downhill, and you can see it with lidar imagery “Blowout” landslides and the lidar signature of extreme Appalachian rainfall events What’s under that anticline? Fold-thrust belt interpretation ideas from geologic sandbox models Making lateral spread landslide models with glass microbeads…and lots of shaking! Lidar reveals geologic details of the “worst” coal mine in the Valley of Virginia Real sandbox model meets “numerical sandbox” model…an interesting comparison of dry granular media and discrete element simulation The waddling boulder…a storm-induced trundle* event? Another intersection of lidar and 19th-century observations at the Silas McDowell slide, Macon County, North Carolina A mid-1800s description of landslide topography meets 21st century lidar at Split Mountain, Haywood County, North Carolina Lidar unboxing day: A few southwest Virginia treats within ~1 hour of Blacksburg and Virginia Tech Sandbox model anticlines with some structural complexity “Squirrel tail” synclines in the Appalachian Valley and Ridge Low-displacement landslides explain unusual West Virginia landscape features visible in lidar imagery Interesting sedimentary basin structures in fold-thrust belt outcrop patterns What does that landslide actually look like, part 2: an active landslide Lidar-derived imagery of 1949 debris flows on North Fork Mountain, Grant County, West Virginia Is this the steepest river in the Appalachian Mountains? Interesting “sideways” movement of a large sandstone blockslide Normal fault, reverse fault, or both? The Pigeon River is Perched, Which is Geologically Bad News Central peak formation in model impact craters The Ray Sponaugle well: A 13,000 ft lesson in Appalachian Valley and Ridge structure Lidar hillshade imagery hints at the location of a future coal spoil landslide LiDAR reveals the cloth-like appearance of a “wrinkled” translational landslide An Abandoned River Valley and the “True Depth” of Appalachia’s Deepest River Gorge What does that landslide actually look like? Extensional anticlines along normal faults Interesting Reverse Faults in a Simple Extensional Sandbox Model Where Did That Boulder Come From? A LiDAR Perspective On A Large Appalachian Rockfall Sample Page Two mappings of a folded thrust fault in the Appalachian Valley and Ridge, 100 years apart