Discover and read the best of Twitter Threads about #geomorphology
Most recents (3)
River terraces are everywhere! But why do rivers sometimes aggrade a terrace and sometimes incise? Do rivers aggrade because there's more sediment coming in, or because there's less water for sediment transport? We did a case study. A thread
#geomorphology
onlinelibrary.wiley.com/doi/10.1002/es…
#geomorphology
onlinelibrary.wiley.com/doi/10.1002/es…
We investigated two alluvial fan sequences in #Crete, mapped them, did some #radiocarbon and #OSL dating, and measured #cosmogenic 10Be and 36Cl. Both fans roughly span the last glacial cycle, and therefore record large variations in climate.
To correct #cosmogenic nuclide concentrations for post-depositional production, I developed "PostPro". The code computes synthetical burial histories for sedimentary sections, including uncertainties of depth through time and all production uncertainties. github.com/Richard-Ott/Po…
Travelling through #India you can't miss such boulder heaps...
Think of Hampi's ruins (below) or Sravanabelagola (Karnataka), or Mt Abu (Rajasthan)?
#DidYouKnow, such isolated hill/ridge features that jut out from the surrounding plains are called #inselbergs?
#Geo thread/
Think of Hampi's ruins (below) or Sravanabelagola (Karnataka), or Mt Abu (Rajasthan)?
#DidYouKnow, such isolated hill/ridge features that jut out from the surrounding plains are called #inselbergs?
#Geo thread/
Derived from German words meaning 'island mountain', #inselbergs are residual features that form across climatic zones.
Yet are most abundant in tropical regions with granite-gneiss outcrops, like those on the cratons across India, as also in the zones marked BCG, CGC, and SGT.
Yet are most abundant in tropical regions with granite-gneiss outcrops, like those on the cratons across India, as also in the zones marked BCG, CGC, and SGT.
Debates rage on how #inselbergs formed, yet most concede they are the result of weathering (breaking down of rocks at site) and erosion (transport of weathered material).
In #India, insolation (heat from sun's rays), rainwater, and rivers have shaped landscapes for millennia.
In #India, insolation (heat from sun's rays), rainwater, and rivers have shaped landscapes for millennia.
#Inktober index card 1: Relative dating is a snippet of simple magic. As soon as you stop to think logically, entire landscapes unravel in eagerness to tell you their story. #sciart #geology #teaching
#Inktober index card 2: #DonnaStrickland is the 3rd woman to EVER win the #NobelPrize in #Physics for her work on chirped pulse amplification, an engineering #optics technique to create short, intense laser bursts with broad industrial & medical applications. #sciart #cansci
#Inktober index card 3: I’m #TeamIce for #MinCup2018, infatuated with this simple & elegant mineral.
Here’s my interpretation of ice from chemical composition to melt molecules to crystal hexagons. I couldn’t find my blue pens for sketching the #thinsection. Shush.
Vote ice!
Here’s my interpretation of ice from chemical composition to melt molecules to crystal hexagons. I couldn’t find my blue pens for sketching the #thinsection. Shush.
Vote ice!
