 Complete the following phrase:  Hansen Spur  is a spur, long, descending from the northwest side of Nilsen Plateau, in the Queen Maud Mountains of Antarctica, and terminating at the edge of Amundsen Glacier just east of the Olsen Crags. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 196064, and was named by the Advisory Committee on Antarctic Names for Ludvig Hansen, a member of the sea party aboard the Fram on Amundsens 