Editing Ross Sea (section)

=== Stratigraphy ===
[[Basement (geology)|Basement]] grabens are filled with rift sediments of uncertain character and age.<ref name=":2" /> A widespread [[unconformity]] has cut into the basement and sedimentary fill of the large basins.<ref name=":2" /><ref>{{Cite book|title=Geology and seismic stratigraphy of the Antarctic margin, 2|date=1997|publisher=American Geophysical Union|others=Barker, Peter F., Cooper, Alan K.|isbn=9781118668139|location=Washington, D.C.|oclc=772504633}}</ref> Above this major unconformity (named RSU-6<ref>Hinz, K., and M. Block. 1984. "Results of geophysical investigations in the Weddell Sea and in the Ross Sea, Antarctica." In ''Proceedings of the Eleventh World Petroleum Congress (London 1983)'', edited by World_Petroleum_Council, 279–291. Chichester, West Sussex: John Wiley and Sons Ltd.</ref>) are a series of glacial marine sedimentary units deposited during multiple advances and retreats of the [[Antarctic ice sheet|Antarctic Ice Sheet]] across the sea floor of the Ross Sea during the [[Oligocene]] and later.<ref name=":1" />