Nomenclature of Rock Units in the Ross Sea Region, Antarctica

Harrington, H. J.

doi:10.1038/182290a0

Cited by 109 publications

(49 citation statements)

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“…Both these sedimentary groups, which belong to the Ross System (Harrington, 1958), are intensely deformed as a result of the Ross Orogeny (Gunn and Warren, 1962), the rocks striking north to north-west in the south of the area, and west-north-west to west in the north. Metagreywacke of the Beardmore Group exposed along the Nash Range has been intruded and altered by acid magmas (Granite Harbour Intrusive Group), and limestone (Byrd Group) of the Holyoake Range has been intruded by gabbro.…”

Section: Summary Of Geologymentioning

confidence: 99%

Geomorphology and stratigraphy of the nimrod glacier–beaumont bay region, Southern Victoria land, Antarctica

Laird

1963

New Zealand Journal of Geology and Geophysics

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An account is given of the geomorphology and stratigraphy of about 3,000 square miles of southern Victoria Land between the Nimrod Glacier and Beaumont Bay. The pr,esent topography has resulted largely from extensive late Cainozoic block faulting, modified by glacial erosion. Strongly folded basement rocks belong to two distinct groups. The older Beardmore Group is composed of thermally altered greywacke and argillite of late Precambrian to early Cambrian age, which have been extensively intruded by post-tectonic plutons predominantly of porphyritic microcJinebiotite granite. The younger Byrd Group is distinguished by predominantly calcareous strata, which have been divided into two formations, the Shackleton and the Starshot. The Shackleton Limestone contains Archaeocyathids, and is therefore of Early to Middle Cambrian age. A type section for this formation is proposed. In several places it has been intruded by ~mall ~tocks of gabbro, which have locally altered the limestone to marble. The Starshot Formation, consisting of shallow-water calcareous conglomerate, sandstone, and shale, together with interbedded rhyolite and trachyte flows, is believed to be contemporaneous with the Archaeocyathid limestones of the Shackleton Formation. In the western part of the region the peneplaned basement rocks are overlain by flat-lying sedimentary beds of the Beacon Group, which are extensively intruded by dolerite sills.

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Section: Summary Of Geologymentioning

confidence: 99%

Geomorphology and stratigraphy of the nimrod glacier–beaumont bay region, Southern Victoria land, Antarctica

Laird

1963

New Zealand Journal of Geology and Geophysics

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“…Mounts Erebus and Melbourne represent two of the four provinces of the McMurdo Volcanic Group, which is one of the most extensive alkali volcanic provinces in the world (Harrington, 1958). In 1988, the 4th Italian Antarctic Expedition discovered a new volcano, Mt Rittmann (Armienti & Tripodo, 1991) (Fig.…”

Section: Introductionmentioning

confidence: 99%

Aerobic endospore-forming bacteria from geothermal environments in northern Victoria Land, Antarctica, and Candlemas Island, South Sandwich archipelago, with the proposal of Bacillus fumarioli sp. nov.

Logan¹,

Lebbe²,

Hoste³

et al. 2000

International Journal of Systematic and Evolutionary Microbiology

143

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“…whole-rock potassium-argon age-of the sample from Site 281 is younger than whole-rock ages from the Robertson Bay Group (410 and 420 m.y., American Geographical Society, 1969). Post-kinematic granitic plutons, however, invade both the Robertson Bay Group (Admiralty Intrusives, Harrington, 1958) and the Precambrian of western Tasmania (McDougall and Leggo, 1965). These plutons have undoubtedly changed the original age of large areas of country rock.…”

Section: Discussionmentioning

confidence: 99%

Petrography and Age of the Quartz-Muscovite-Chlorite Semischist, Site 281, South Tasman Rise

Ovenshine¹,

Csejtey²,

Smith³

et al. 1975

Initial Reports of the Deep Sea Drilling Project

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Drilling at Site 281 on the South Tasman Rise recovered fragments of carbonaceous quartz-muscovite-chlorite semischist. The schist was developed by very low-grade regional metamorphism (greenschist facies) of a sedimentary rock that was poorly sorted and quartz rich. An average of two whole-rock potassium-argon ages of the semischist is 306 ±10 m.y. Analysis of the drilling record strongly suggests that semischist bedrock was reached at 159.5 meters and was penetrated to a depth of 169.0 meters. The results establish the continental nature of the crust underlying the South Tasman Rise.

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Nomenclature of Rock Units in the Ross Sea Region, Antarctica

Cited by 109 publications

References 0 publications

Geomorphology and stratigraphy of the nimrod glacier–beaumont bay region, Southern Victoria land, Antarctica

Geomorphology and stratigraphy of the nimrod glacier–beaumont bay region, Southern Victoria land, Antarctica

Aerobic endospore-forming bacteria from geothermal environments in northern Victoria Land, Antarctica, and Candlemas Island, South Sandwich archipelago, with the proposal of Bacillus fumarioli sp. nov.

Petrography and Age of the Quartz-Muscovite-Chlorite Semischist, Site 281, South Tasman Rise

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