The Fosdick Mountains () are an east–west trending

mountain range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arise ...

with marked serrate outlines, standing along the south side of Balchen Glacier at the head of Block Bay, in the

Ford Ranges The Ford Ranges () are a grouping of mountain ranges standing east of Sulzberger Ice Shelf and Block Bay in the northwest part of Marie Byrd Land, Antarctica. Discovered by the Byrd Antarctic Expedition on December 5, 1929, they were named by Byrd ...

of Marie Byrd Land, Antarctica. They were discovered by the

Byrd Antarctic Expedition Richard Evelyn Byrd Jr. (October 25, 1888 – March 11, 1957) was an American naval officer and explorer. He was a recipient of the Medal of Honor, the highest honor for valor given by the United States, and was a pioneering American aviator, p ...

in 1929, and named by

Richard E. Byrd Richard Evelyn Byrd Jr. (October 25, 1888 – March 11, 1957) was an American naval officer and explorer. He was a recipient of the Medal of Honor, the highest honor for valor given by the United States, and was a pioneering American aviator, p ...

for Raymond B. Fosdick, who became president of the Rockefeller Foundation.

Glaciers and peaks

* Balchen Glacier * Ochs Glacier * Crevasse Valley Glacier *

Demas Bluff Demas Bluff () is a rock bluff on the south side of the Fosdick Mountains, 2 nautical miles (4 km) west of Mount Richardson, in the Ford Ranges of Marie Byrd Land. It was mapped by the United States Antarctic Service (USAS) (1939–41) under R ...

Mount Avers Mount Avers () is a mountain north of Mount Ferranto in the Fosdick Mountains, in the Ford Ranges of Marie Byrd Land. It was discovered in December 1929 by the Byrd Antarctic Expedition and named for Henry G. Avers, chief mathematician of the Div ...

* Mount Bitgood * Mount Colombo * Mount Ferranto *

Mount Getz Mount Getz () is a mountain, high, in the southern part of the Fosdick Mountains, east-southeast of Mount Ferranto, in the Ford Ranges of Marie Byrd Land, Antarctica. It was mapped by the United States Antarctic Service (1939–41) led by Rear ...

* Mount Iphigene * Mount Lockhart * Mount Luyendyk * Mount Richardson * Maigetter Peak * Mount Perkins

Geology and geography

The dominant topography is tall, steep-sided ridges, trending north-south, with peak elevations spanning 1000 to 1200 m.Wade, F. A., C. A. Cathey, and J. B. Oldham (1977), Reconnaissance geologic map of the Guest Peninsula quadrangle, Marie Byrd Land, Antarctica, Map A-7, U. S. Antarctic Research Program, Reston, VA. The range consists of the Fosdick Metamorphic Rocks of

migmatite Migmatite is a composite rock found in medium and high-grade metamorphic environments, commonly within Precambrian cratonic blocks. It consists of two or more constituents often layered repetitively: one layer is an older metamorphic rock th ...

gneiss Gneiss ( ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Gneiss forms at higher temperatures a ...

and

granite Granite () is a coarse-grained ( phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies under ...

Metamorphism Metamorphism is the transformation of existing rock (the protolith) to rock with a different mineral composition or texture. Metamorphism takes place at temperatures in excess of , and often also at elevated pressure or in the presence of ch ...

occurred in the middle of the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...

period. Mount Perkins is a

Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in ...

volcano within the range.Luyendyk, B. P., S. M. Richard, C. H. Smith, and D. L. Kimbrough (1992), Geological and geophysical investigations in the northern Ford Ranges, Marie Byrd Land, West Antarctica, in ''Recent Progress in Antarctic Earth Science: Proceedings of the 6th Symposium on Antarctic Earth Science, Saitama, Japan, 1991'', edited by Y. Yoshida, K. Kaminuma and K. Shiraishi, pp. 279-288, Terra Pub., Tokyo, Japan.

References

External links

Fosdick Mountains
on

USGS The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, a ...

website
Fosdick Mountains
on

SCAR A scar (or scar tissue) is an area of fibrous tissue that replaces normal skin after an injury. Scars result from the biological process of wound repair in the skin, as well as in other organs, and tissues of the body. Thus, scarring is a n ...

website
Fosdick Mountains geological map

Fosdick Mountains satellite image
Mountains of Antarctica Marie Byrd Land Ford Ranges {{MarieByrdLand-geo-stub

Glaciers and peaks

Geology and geography

Further reading

References

External links