Main Crater
Encyclopedia
Main Crater is the topographic feature that rises to c.3750 m and forms the primary summit crater of Mount Erebus
on Ross Island
. Inner Crater, q.v., which lies within Main Crater, contains an anorthoclase-phonolite lava lake
.
Mount Erebus
Mount Erebus in Antarctica is the southernmost historically active volcano on Earth, the second highest volcano in Antarctica , and the 6th highest ultra mountain on an island. With a summit elevation of , it is located on Ross Island, which is also home to three inactive volcanoes, notably Mount...
on Ross Island
Ross Island
Ross Island is an island formed by four volcanoes in the Ross Sea near the continent of Antarctica, off the coast of Victoria Land in McMurdo Sound.-Geography:...
. Inner Crater, q.v., which lies within Main Crater, contains an anorthoclase-phonolite lava lake
Lake
A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...
.