A thought-provoking and wide-ranging talk yesterday by Andy Wickert, University of Minnesota.
His group has tracked changes in drainage patterns during the final deglaciation of Minnesota (~11 thousand years ago) to changes in erosion rates since the advent of mechanical agriculture.
#UMN #McGillU #Minnesota #MississippiRiver #Glaciation #Sediments
Hwangto (Pedology 🟤)
Hwangto, a Korean loess soil, is a yellow-coloured soil, which contains high levels of potassium chloride and calcium. Hwangto is sometimes called a 'living soil' for its medical effects. Korean loess called “Hwangto”or “the red yellow soil or earth” has been a basic element or nourishment which has cultivated Korean nature and cultural heritages. Hwangto reve...
https://en.wikipedia.org/wiki/Hwangto
#Hwangto #Pedology #Sediments #Glaciology #TypesOfSoil #AeolianLandforms
#WeekendReading: Hennebert and Lees on environmental gradients in carbonate #sediments around the North Sea. It's a rather early work I missed until now, it has its shortcomings, but there are some interesting things there.
Link: https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-3091.1991.tb01012.x
Desert pavement (Deserts 🏜️)
A desert pavement, also called reg, serir, gibber, or saï is a desert surface covered with closely packed, interlocking angular or rounded rock fragments of pebble and cobble size. They typically top alluvial fans. Desert varnish collects on the exposed surface rocks over time. Geologists debate the mechanics of pavement formation and their age.
In this #collaborative engagement, Zahirah, Klein, Bogart, Keller, Huang & Gutierrez explore the potential of #sediments in #CoastalEnvironments for rethinking the #entanglements of history, policy + national #developmentalism in #SoutheastAsia
Desert pavement (Deserts 🏜️)
A desert pavement, also called reg, serir, gibber, or saï is a desert surface covered with closely packed, interlocking angular or rounded rock fragments of pebble and cobble size. They typically top alluvial fans. Desert varnish collects on the exposed surface rocks over time. Geologists debate the mechanics of pavement formation and their age.
Bill Minarik
💧🌏 Greg Cocks
Planetary Ecologist
Dr. Or M. Bialik
EngagingSTSjournal