Chinese family names are patrilineal, passed from father to children. (In cases of adoption, the adoptee usually also takes the same surname.) Women do not normally change their surnames upon marriage, except in places with more Western influences such as Hong Kong.
Ice shelf. An ice shelf is a thick floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are only found in Antarctica, Greenland and Canada. The boundary between the floating ice shelf and the grounded ice that feeds it is called the grounding line.
Ward Hunt Ice Shelf: This ice shelf is an example of a shelf made from compressed sea ice. This Canadian RADARSAT image shows the shelf in August 2002, when a crack made its way down the length of the shelf. Image courtesy Alaska Satellite Facility, Geophysical Institute, University of Alaska Fairbanks.