GeoLog

Regular Features

Imaggeo on Mondays: Rock glaciers

Imaggeo on Mondays: Rock glaciers

Picture a glacier and you probably imagine a vast, dense mass of slow moving ice; the likes of which you’d expect to see atop the planet’s high peaks and at high latitudes. Now, what if not all glaciers look like that? Take some ice, mix in some rock, snow and maybe a little mud and the result is a rock glacier. Unlike ice glaciers (the ones we are most familiar with), rock glaciers have very litt ...[Read More]

Geosciences Column: The World’s soils are under threat

Geosciences Column: The World’s soils are under threat

An increasing global population means that we are more dependant than ever on soils. Soils are crucial to securing our future supplies of water, food, as well as aiding adaptation to climate change and sustaining the planet’s biosphere; yet with the decrease in human labour dedicated to working the land, never have we been more out of touch with the vital importance of this natural resource. Now, ...[Read More]

Imaggeo on Mondays: an impressive testimony to the collision between Africa and Europe

Imaggeo on Mondays: an impressive testimony to the collision between Africa and Europe

The huge fold in the flank of the 2969 m high Dent de Morcles (in Waadtland Alps, Switzerland) is an impressive testimony to the collision between Africa and Europe (which began some 65 million years ago). The layers, originally deposited on the sea floor in a horizontal position, were compressed and shifted. The darker parts developed during the Tertiary period (66 million years ago). They are yo ...[Read More]

GeoTalk: Matt Taylor of ESA’s Rosetta mission

GeoTalk: Matt Taylor of ESA’s Rosetta mission

In November 2014, space exploration history was made. Millions of kilometres away, orbiting a piece of ice and rock, the European Space Agency’s (ESA) Rosetta mission sent its probe Philae to become the first spacecraft to soft-land on a comet. After the tense 7-hour wait that followed the separation from the main orbiter, a tweet confirmed that the little lander had successfully completed the fir ...[Read More]