News from the Geoblogosphere
New from Snet: Lithologs
, a new tool to create lithological/sedimentological logs online..
Wednesday, 25 May 2022
Dinosaurs Lost, Mammals Won - How?
We all know that at the end of the Cretaceous dinosaurs became extinct and that mammals inherited the Earth. We know much about the extinction, less about the success of the mammals.
A correspondent has sent me THIS LINK which tries to answer this question.
Mammals had been around for as long as the dinosaurs but they led very inconspicuous lives and this may have saved them from catastrophe.
Many mammalian species became extinct; the ones that [...]
Mapping the Interior of the Earth
A correspondent has sent me THIS LINK. The article is based on THIS PAPER. The original authors have used seismic shear waves that diffract along the core mantle boundary to identify what they call "Ultra-Low Velocity Zones" (ULVZ); in addition they say that they can detect variability within the ULVZ.
These ULVZ are only a few tens of kilometres high, and, being on the core mantle boundary, are very difficult to study. But high frequency waves allow [...]
I haven’t blogged in ages but have actually done a bit of work. Specifically, I eventually wrote up my new reconstruction of the Last Glacial Maximum. We did this back in 2012/3 (see here) but since then [...]
Il servizio meteorologico islandese ha appena pubblicato un interferogramma (una carta con la differenza nella distanza dal satellite dei cluster di due immagine InSAR che ritraggono la stessa scena in [...]