Sophie Cape’s paintings are elemental – seemingly made of fire and snow, earth and blood. And the truth is not far from that; the huge works are impregnated with the ash and soil and bones and metal fragments on the ground in the locations where the works were created. As a past Olympic-level athlete, Sophie’s process is explosively physical, with violently cathartic struggles on the canvas. But as she explains to Richard Morecroft, the controlled mark of her hand is in evidence too, with subtle drawing and mysterious calligraphy.