Complex sentence: In 1947, Boos quit the bureau to become a geological consultant with her office at home, she then published her pegmatite conclusions in 1945, which contained a map of the Denver Parks area covering 540 square miles of the area.
Split into simpler sentences: In 1947, Boos quit the bureau to become a geological consultant with her office at home. She then published her pegmatite conclusions in 1945, which contained a map of the Denver Parks area covering 540 square miles of the area.