Grading sed/strat exams and someone referred to a quartz arenite's cement as "silicone" (instead of silica). 🤭
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Bill Lukens
@paleosol.bsky.social
793 followers 1.4K following 532 posts
geology | paleoclimatology | geochemistry | soils | sed/strat | Assoc. Prof. at JMU | views are my own Lab website: sites.google.com/view/lukenslabjmu Scholar profile: scholar.google.com/citations?user=N…
![4-panel comic. (1) PERSON 1: Any plans for Halloween? PERSON 2 with beret: Me and my friends are gonna check out a slab graveyard! (2) PERSON 1: What’s that? PERSON 2: When dense crust subducts, geologists think it might pile up at the bottom of the mantle. [illustration of Person 2’s related theory] (3) PERSON 2: We’re going to hide in the crust and ride it down to see. Wanna come? It’s gonna be spooky! (4) PERSON 1: Won’t that take millions of years? PERSON 2: Lots of time for ghost stories! PERSON 1: I think I’m good. PERSON 2: Too spooky? I understand.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreigwl2q77jwcmcdvj6n4hvgfxrpkw5f5gzu2pzlofn3rawdh46vlmy)
![4-panel comic. (1) [Giant fishing rod-like cat toy positioned above four tectonic plates. Two helicopters that appear tiny due to scale fly above. People next to device are so tiny they cannot be seen.] PERSON 1: The key to exposing new geologic layers is understanding the three forces driving plate movement: slab pull, ridge push, and taunting. (2) PERSON 2: Taunting? What do– PERSON 1: *Initiate thrust fault pattern!* [The dangly end of the toy wiggles.] (3) “Rumble” sound effect from tectonic plates. (4) “Lunge!” sound effect from tectonic plates. [Plates split at a diagonal angling toward toy.]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreib4bgny4aloexmhcpuj3hprxwxludu6ix23qkcarfocnvdizaw7ia)
