After four fascinating instalments in the known unknowns series we have (sadly) come to the final post. Since the series began in September we have explored the top questions that still remain unanswered when it comes to understanding the inner workings of the planet as well as how the interplay of a number of systems that occur at the Earth’s surface give rise to its varied landscapes. The series ...[Read More]
The known unknowns – the outstanding 49 questions in Earth Sciences (Part IV)
We are coming to the end of the known unknowns series and so far we have explored issues which mainly affect the inner workings of our planet. Today we’ll take a look at the surface expression of the geological processes which shape the Earth. Topography significantly affects our daily life and is formed via an interplay between primarily tectonics and climate, but it also affected by biological, ...[Read More]
The known unknowns – the outstanding 49 questions in Earth sciences (Part III)
We continue exploring the biggest conundrums in Earth sciences in this third post of the known unknowns. In the two previous instalments of the series we’ve discovered what the major questions still to be answered about the early days of planet Earth and its inner workings are. We now move onto the planet’s surface. The advent of plate tectonic theory, arguably one of the biggest advancements in t ...[Read More]
Imaggeo on Mondays: Fossil dunes
Desert winds continually rework the sands on their surface, shifting grains up the stoss side of a dune to pile the sand higher… until the pile gets too steep and collapses under its own weight. This slipping of material along the front of the dune, allows it to move forward and migrate. The movement of the sand grains up and over the crest of the dunes is recorded in the internal structure of the ...[Read More]