Bunger Hills, Queen Mary Coast, Wilkes Land, Eastern Antarctica, Antarcticai

Regional Level Types
Bunger Hills	Hill
Queen Mary Coast	Coast
Wilkes Land	Territory
Eastern Antarctica	Region
Antarctica	Continent

Bunger Hills, also known as Bunger Lakes or Bunger Oasis, is a coastal range on the Knox Coast in Wilkes Land in Antarctica, consisting of a group of moderately low, rounded coastal hills, overlain by morainic drift and notably ice-free throughout the year, lying south of the Highjump Archipelago. The reasoning behind the minute amount of ice in the area is still relatively unknown and remains under intense debate amongst scientists today.

The Bunger Hills are located with their center at 66°17′S 100°47′E, stretching from 65°58'S to 66°20'S and from 100°20'E to 101°28'E. The Bunger Hills are marked by numerous melt ponds and are nearly bisected by an east-west trending Algae Lake (also known as Lake Figurnoye). Mapped from air photos taken by the United States Navy Operation Highjump (1946-1947) and named by the United States Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Commander David E. Bunger, United States Navy, plane commander of one of the three USN OpHjp aircraft which engaged in photographic missions along most of the coastal area between 14 E and 164 E. David E. Bunger and members of his crew landed their airplane on an unfrozen lake here in February 1947.

The Bunger Hills are surrounded by glaciers. On the southeast, the Bunger Hills is bordered by the steep slopes of the Antarctic ice sheet, on the south and west by outlet glaciers, and on the north by Shackleton Ice Shelf, which separates the area from the open sea. The ice-free area measures 450 km² (174 sq mi), according to some sources even 750 or 942 km² (290 or 364 sq mi) (though these latter values include a marine area not covered by continental ice or the Shackleton Ice Shelf). The topography is characterized by rugged hills, and there are many freshwater and salt lakes. The largest and deepest lake, Algae Lake (Lake Figurnoye) is 25 km (16 mi) long and up to 137 metres (449 ft) deep. The leader of Operation Highjump, Admiral Richard E. Byrd stated that the Bunger Hills was ‘…one of the most remarkable regions on earth. An island suitable for life had been found in a universe of death.’

Cape Hordern is an ice-free cape, overlain by morainic drift, at the western end of the Bunger Hills. It was first observed by members of the western party of the Australian Antarctic Expedition (1911-1914), who were unable to reach it due to heavy crevassing on the Denman and Scott Glaciers. [Wikipedia]

Banded migmatitic metapelites (T > 750 °C, P = 6-7.5 kb).

The Bunger Hills consist of massive felsic (orthopyroxene–quartz–feldspar) orthogneiss in the southeast and a layered gneiss series in the rest of the area. The layered series has a thickness of ca. 6–7 km and includes foliated and migmatized cordierite- and sillimanite-bearing gneiss (metapelitic granulites), garnet-bearing granitic gneiss, two-pyroxene and hornblende–pyroxene rocks (mafic granulites), minor garnet quartzite, calc–silicate rocks, and marble. These rocks are folded into a syncline which extends more than 25 km in a northwest direction and is modified by numerous tight, often isoclinal folds. Three systems of faults control the occurrence of mylonite and diaphthorite zones and divide the crystalline basement into separate blocks which have slightly moved relative to each other.

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Bunger_Hills
Wikidata ID:	Q1009484

Other Regions, Features and Areas containing this locality

References