Fracture By Margaret Pettee Olsen At ABSTRACT, Curated By Dean Sobel Posted byMargaret November 29, 2012December 9, 2012 Leave a comment on Fracture By Margaret Pettee Olsen At ABSTRACT, Curated By Dean Sobel ABSTRACT, curated by Dean Sobel, Director Clyfford Still Museum, at Core in Denver runs November 15–December 2, 2012. The photograph (below) showcases my work, ‘Fracture,’ 2012.