Stratigraphic Column, 101, San Francisco, CA, 2002, is composed of alternating images taken of Cambrian and Ordovician Era carbonate marine sediments from the Panamint Mountains in Death Valley, California and contemporary buildings (Holocene era) in the process of being deconstructed or having undergone conflagration in northern California. The images have been digitally stretched to form strata-like structures that recompose the column into a sequence of non-conformities and displacement in geologic time and distance. This meta-order examines an intermingling of Holocene and Paleozoic structures over 300 million years and 500 miles (800 kilometers) apart. The geographic displacement from Death Valley to Oakland is on the scale of plate tectonics or large strike/slip or transform fault systems such as the San Andreas Fault in western California. The practice of architecture often brings together materials from even greater distances and time frames for aesthetic, design or structural reasons.
John Roloff, 2002