Anthropocene: New dates proposed for the ‘Age of Man’ – http://www.bbc.co.uk/news/science-environment-31836233
Ever wondered how the Giant’s Causeway was formed, or where the Jurassic Coast gets its name from? Here’s your chance to find out! From the 13-19 October, the Geological Society of London will be hosting a series of events for Earth Science Week showcasing the rich geological heritage of UK and Ireland. Click here to find out how to get involved!
Iceland is on high alert after seismologists detected an increase in volcanic activity at the Bardarbunga Volcano.
Volcanic eruptions may release ‘Tephra‘; tiny shards of volcanic rock which carry a geochemical ‘fingerprint’ unique to a specific eruption. Tephra are carried through the atmosphere before being deposited as fine layers in soils and sediments.
Geologists use tephra layers, combined with knowledge of the timing of the eruption that produced them, as a time marker to determine the age of soils and other materials (e.g. fossil pollen).
Following on from my last post on the theme of ‘world’s oldest natural wonders’ with the discovery of the oldest known fragment of the earth’s crust. The crystal – a zircon – was found in Western Australia and is estimated to be 4.4 billion years old, raising the possibility that the Earth might have been able to support life earlier than previously thought – to read the full story click here