Editing Iceberg (section)

===Shape===
[[File:Iceberg Shape.svg|thumb|Different shapes of icebergs]]
[[File:Antarctic Sound-2016-Iceberg 02.jpg|thumb|Tabular iceberg, near [[Brown Bluff]] in the [[Antarctic Sound]] off [[Tabarin Peninsula]]]]

In addition to size classification (Table 1), icebergs can be classified on the basis of their shapes. The two basic types of iceberg forms are ''tabular'' and ''non-tabular''. Tabular icebergs have steep sides and a flat top, much like a [[plateau]], with a length-to-height ratio of more than 5:1.<ref name="iipssc">{{cite web|url=http://www.uscg.mil/lantarea/iip/docs/AOS_2011.pdf|title=Sizes and Shapes of Icebergs|publisher=International Ice Patrol|access-date=2006-12-20}}</ref>

This type of iceberg, also known as an ''ice island'',<ref>Weeks, W.F. (2010), On Sea Ice, University of Alaska Press, p. 399</ref> can be quite large, as in the case of [[Pobeda Ice Island]]. [[Antarctic]] icebergs formed by breaking off from an [[ice shelf]], such as the [[Ross Ice Shelf]] or [[Filchner–Ronne Ice Shelf]], are typically tabular. The largest icebergs in the world are formed this way.

Non-tabular icebergs have different shapes and include:<ref>{{cite web|url=http://www.canadiangeographic.ca/magazine/ma06/indepth/nathistory.asp|title=Iceberg Physiology|publisher=Canadian Geographic|date=2006|archive-url=https://web.archive.org/web/20060331032649/https://www.canadiangeographic.ca/magazine/ma06/indepth/nathistory.asp|archive-date=2006-03-31|url-status=dead|author=Holly Gordon}}</ref>

* ''Dome'': An iceberg with a rounded top.
* ''Pinnacle'': An iceberg with one or more [[spire]]s.
* ''Wedge'': An iceberg with a steep edge on one side and a slope on the opposite side.
* ''Dry-dock'': An iceberg that has [[Erosion|eroded]] to form a slot or [[Channel (geography)|channel]].
* ''Blocky'': An iceberg with steep, vertical sides and a flat top. It differs from tabular icebergs in that its [[aspect ratio]], the ratio between its width and height, is small, more like that of a block than a flat sheet.