The giant outflow of magma produced the Siberian Traps, volcanic rocks located in an area of Russia known as the Siberian platform. Marc K. Reichow of the University of Leicester in England and his colleagues investigated rocks removed from deep within a basin located nearly 1, 000 kilometers to the west of the platform (see image). After analyzing the chemical and physical structure of these samples, the team determined that the rocks came from the same source as did those in the Siberian Traps. The new findings suggest that the Siberian Traps in fact covered almost 3.9 million square kilometers, an area approximately half the size of Australia, over the course of hundreds of thousands of years. Such an increased flux of magma at the close of the Permian would have added substantially to the volume of climate-changing gases released into the atmosphere. Indeed, the team concludes that "the larger area of volcanism strengthens the link between the volcanism and the end-Permian mass extinction."