Special Issue 50 of the Rockwatch
magazine:
 Special "Earth Rocks" issue of the magazine, celebrating 200 years of extraordinary geological discoveries. Read all about them in the Rockwatch magazine, available to non-members from us at the GA, Burlington House, Piccadilly, London W1J 0DU, price £1.50 inc. p&p.
Issue 50 contents list
These are just a few of the exciting articles you’ll find in the “Earth Rocks” issue number 50, of the magazine:
 FOSSILS IN THE PRECAMBRIAN
John Carney tells us how two Leicestershire schoolboys were early discoverers of rare Precambrian fossils in the UK.
 DARWIN WAS A GEOLOGIST!
Darwin, best known for his theory of evolution, was also a brilliant geologist, a fact not known by many people! David Norman shares some of Darwin’s best kept geological secrets.
 A DISAPPEARING OCEAN
It was only 420 million years ago that the enormous Iapetus Ocean, which had separated Scotland and England through much of the EarlyPalaeozoic, was finally squeezed out. Phil Stone tells us how huge tectonic forces caused the collision that joined these two countries together.
 THE LAND OF THE GONDS
It’s hard to believe that continental drift and plate tectonic theory only became accepted during the later part of the 20th Century as scientists pieced together the clues gleaned from the break up of Gondwanaland. Phil Stone tells us how this came about.
 DIAMOND ADVENTURER
The story of how Cecil Rhodes brought diamonds to the attention of the world but at a human cost. Cally Oldershaw relates this gruelling story.
 GLOBAL WARMING
Can clues from the geological past give answers to our future climate? Howard Falcon-Lang shows how this might be possible.
 CLIMATE CHANGE BY NUMBERS
Using maths to describe the climate of the Earth, Mars and Venus at the beginning of the 20th century and in the past, gave Milankovitch a chance to develop his unifying theory of climate change. Kirsty Pepper tells us how this theory is now the most widely accepted for climate change during the Pleistocene.
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