of an extinct volcano, in which case the area might contain diamond deposits similar to those of South Africa. However, Meen's knowledge of Canadian geology tentatively ruled out a volcanic origin. Meen subsequently made a brief trip by air to the crater with Chubb in 1950; it was on this trip that Meen proposed the name "Chubb Crater" for the circular feature and "Museum Lake" for the irregular body of water about north of the crater (now known as Laflamme Lake). Following his return, Meen organized a proper expedition with the cooperation of the National Geographic Society and the Royal Ontario Museum. They travelled to the site in a PBY Catalina flying boat in July 1951, landing on nearby Museum Lake. Attempts to find fragments of nickel-iron from the meteorite using mine detectors lent by the US Army were unsuccessful due to the area's granite containing high levels of magnetite. A magnetometer survey did find a magnetic anomaly under the crater's northern rim, however, indicating that a large mass of metal-bearing material was buried below the surface. Meen led a second expedition to the crater in 1954. That same year its name was changed to "Cratère du Nouveau-Quebec" ("New Quebec Crater") at the request of the Quebec Geographic Board. An expedition led by James Boulger in 1986 collected a small rock sample from the area surrounding the New Quebec Crater. Petrographic analysis of this sample was conducted at the Harvard – Smithsonian Center for Astrophysics and reported to the 51st Meteoritical Society in 1988 by Ursula Marvin and David Kring. Boulger returned to the area that summer, along with a research party led by M. A. Bouchard of the University of Montreal. Three years later Canadian geologist Richard A. F. Grieve listed New Quebec among the 130 known terrestrial impact craters. In 1992, Marvin and Kring documented the petrographic analysis of two impact melt samples collected within the crater rim. They presented evidence of shock metamorphism, which is consistent with similar impact crater sites. In 1999, the name was again changed, to "Pingualuit". The crater and the surrounding area are now part of Canada's Pingualuit National Park, created on January 1, 2004. 2007 expedition Professor Reinhard Pienitz of Laval University led a 2007 expedition to the crater which extracted sediment cores from the bottom of the lake, which were filled with fossil pollen, algae, and insect larvae. It was hoped