Brian Horton

What causes intraplate deformation in South America? Andean topography & geologic structures point to flat slab subduction, ridge subduction, tectonic inheritance. #Andes #foreland #basin #geodynamics #subduction @txgeosciences @UNLVGeoscience @TAMUArtSci pubs.geoscienceworld.org/gsa/geology/ar…

what, not interested in the topic? too dry? not juicy enough?

Shallow #earthquakes in the #Andes: 🔸What's going on in #Ecuador?? 😬 🔸Hints at #SlipPartitioning in the north and south. 🥰 🔸Northern #Peru is awfully quiet! And also seem to have been cheated out of its rightful share of #volcanoes. 🤨 #tectoplot

not to be confused with the Bugs Bunny guide to the Ozarks. dailymotion.com/video/x3uq817

Huge thrust at the eastern slope of the Andes, geologists looking atonish. Post meeting field trip of PATADays 2024

Laramide high angle fault crosscutting Permian and Triassic sediments, and unconformably overlain by the 1.3 My Bandelier tuff that formed Valles Caldera. New Mexico.

one of many valuable provincial geologic maps from Colombian natl geolog ical survey. #Andes #Colombia

In the stacks: The Permian basin : petroleum empire of the Southwest. By Samuel D. Myres. Permian Press, 1973. #petroleum #petroleumindustry #texas #texashistory #permianbasin

not a ZZTop album cover

Any geoscience/hydrology scientific illustrators out there? Might have funding to help me build educational content for the citizens of New Mexico all about water resources! DM me if interested!

Check out the hairpin turns in the Uraricoera and Takutu rivers in the northern Amazonian state of Roraima. These rivers formerly drained north into Guyana and now drain south into the Branco and then Negro rivers.

I like making big blue maps of remote places. Here's my latest: shadedrelief.com/patagonia

Pedro Val (@topoerosion) liked studying geology. But when he learned about how tectonic activity can change the flow of rivers, he “didn’t want to know about anything else.” @theAGU eos.org/features/pedro… Read more in our August career issue: bit.ly/Eos-Aug2024

Halgurd mountain (3607 m; 11834 ft) a stacking pile of pillow lava basalts! Once upon a time a newly formed Neotethys oceanic crust between the Eurasian plate and the Arabian plate, now the highest peak of the Zagros mountain range in the Kurdistan region of Iraq! @InsideNatGeo

River drainage networks of England show the effects of both tectonics and erosion, with many smaller basins draining to the periphery, but the development of some larger interior basins by river capture, as in the Trent and Severn basins.

Also environmental conditions in the past. Nothing in the Amazon makes sense except in light of the Pebas megawetlands that covered over 1 million sq km from 22-10 million years ago.

"Ecuadorians are strange and unique beings, they sleep peacefully amid smoking volcanos, they live in poverty amid incomparable wealth, and they cheer up with sad music." A. von Humboldt.

Growth of downtown Austin Texas over ~50 yrs: rough image comparison 1976 vs. 2023 (attempting to match bridges over Lady Bird (Town) Lake = the dammed TX Colorado River). Disclaimer: there is more I-35 traffic than depicted in GoogleEarth #austin #atx store.beg.utexas.edu/reports-of-inv…

Nice example of Sub-Cretaceous (K) Unconformity in New Mexico: K Beartooth SS shows variable subcrop relationships, highlighting pre-K regional tilting & erosional beveling. S. Cather 2012 NM Geo Soc Guidebook nmgs.nmt.edu/publications/g…

Fieldtrip doing a 2 days transect following the Ribargorçana river #Pyrenees with J.A Muñoz and K. McClay. Interesting discussions about salt-bearing fold-and-thrust belts. #fieldgeology #structuralgeology @IRGeomodels @DeptDto @geologiaub