Wind Paintings by Bob Verschueren (via I Love Belgium)
A form of Land Art painting - by gathering powdered natural materials and placing it in a line, he left nature take it’s course to finish the ‘work’:
How do you define vegetal art? Well, you have a look at the work of artist Bob Verschueren. Art where nature silently and surreptitiously invades its surroundings. Among his most ground breaking works are the Wind Paintings from the 1970s and 1980s which involved painting the landscape of empty and desolate places with the help of wind.
He “painted” these canvasses with crushed charcoal, iron oxide, chalk, terra verte, flour, yellow ochre, terre de Cassel, burnt and natural umber. Each time, after a specific material was laid out in a linear motif on the land, Verschueren would wait for the wind, a hand that sublimates the art to the materials to distribute the variously coloured pigments and materials over the land. The resulting works usually only last a few hours, whereupon the wind that created them likewise blows them away.
More information and images can be found here.