Weiss Amphitheater () is an amphitheater-like
caldera
A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcano eruption. When large volumes of magma are erupted over a short time, structural support for the rock above the magma chamber is ...
, 2 nautical miles (3.7 km) wide and breached at the southern side, occupying the south-central part of
Mount Sidley, in the
Executive Committee Range,
Marie Byrd Land
Marie Byrd Land (MBL) is an unclaimed region of Antarctica. With an area of , it is the largest unclaimed territory on Earth. It was named after the wife of American naval officer Richard E. Byrd, who explored the region in the early 20th centur ...
. It was mapped by the
United States Geological Survey (USGS) from surveys and U.S. Navy
trimetrogon photography, 1958–60. It was named by the
Advisory Committee on Antarctic Names
The Advisory Committee on Antarctic Names (ACAN or US-ACAN) is an advisory committee of the United States Board on Geographic Names responsible for recommending commemorative names for features in Antarctica.
History
The committee was established ...
(US-ACAN) for Bernard D. Weiss, Meteorologist-in-Charge at
Byrd Station
The Byrd Station is a former research station established by the United States during the International Geophysical Year by U.S. Navy Seabees during Operation Deep Freeze II in West Antarctica.
History
A joint Army, Navy, Air Force, and Marin ...
, 1959.
Volcanoes of Marie Byrd Land
Executive Committee Range
Calderas of Antarctica
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