Monday, 26 September 2016

Our Atmosphere is Leaking Oxygen!

 Field site where the famous Vostok ice cores, which the present study uses, were drilled in Antarctica. Image: Michael Bender

Researchers discovered that over the past 800,000 years, atmospheric oxygen levels have dropped by 0.7 percent. How exactly did they discover the leak? By observing ice cores from Greenland and Antarctica, which contain trapped air bubbles representing snapshots of our atmosphere over the past million-odd years.

Link to Gizmodo

Link to Science article abstract. Subscription needed for full article

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Friday, 23 September 2016

News from North West Highlands Geopark

As Channel 4 puts Britan's geological heritage firmly in the lime light the North West Highland's is given special attention in a three part series presented by Dr Tori Herridge.  Episode 1 was shot in the Geopark and features one on one discussion with our own Dr Laura Hamlet.
An anonymous source has brought this to our attention. Note that the first programme is this Saturday.

What is Magma?

“Magma,” definition 5: A confused or disordered body or mass of something.
—Oxford English Dictionary Online (20 September 2016)

Lava forms ropey pāhoehoe textures. How molten must the subsurface rock that fueled this lava be to get classified as “magma”? Credit: iStock.com/Justin Reznick
The authors of this article argue that we need a more precise definition of magma.

Defining Magma

Wednesday, 21 September 2016

WEGA Lecture

The first WEGA Lecture of the session will be on Tuesday 11th October at 7:30 PM. It will be held in the Earth Sciences Department of Bristol University. The speaker will be Professor Brian Williams and his topic will be "Deserts and Diamonds in South West Africa"

Mendip Rocks

We have recently heard about this. You can get the poster from THIS link. There are lots of interesting events from now to the end of October.

You can find details and times of these events, and others, on the Bristol Geology Calendar.

Thursday, 15 September 2016

The most interesting thing to have happened in Lairg EVER

Did a meteorite impact Lairg in Torridonian times?

Tuesday, 13 September 2016

Climate history in cartoon form 


My thanks to Elizabeth Devon for the link!