The Beardmore orogeny was a mountain building event in the Neoproterozoic affecting what is now Antarctica. The event is preserved in the Trans-Antarctic Mountains, potentially in the Shackleton Range and by argillite-greywacke series in the Horlick Mountains, Queen Maud Land and the Thiel Mountains. Upright folds, asymmetric overturned or recumbent isoclinal folds first identified by Elliott in 1975 was interpreted in 1992 by Edmund Stump as indicative of compressive and convergent tectonic activity. [1]
The orogeny is expressed as an unconformity in the Transantarctic Mountains, between folded Late Proterozoic strata and overlying Early or Middle Cambrian sediments. This Late Precambrian event occurred between 660 and 580 Ma.[2]
^Anderson, John B. (1999). "Antarctic Marine Geology". Cambridge University Press. p. 30-32. ISBN 9780521593175.
^Laird, Malcolm (1991). Tingey, Robert (ed.). The Late Proterozoic-Middle Palaeozoic rocks of Antarctica, in The Geology of Antarctica. Oxford: Clarendon Press. pp. 82–83, 104, 108. ISBN 0198544677.
The Beardmoreorogeny was a mountain building event in the Neoproterozoic affecting what is now Antarctica. The event is preserved in the Trans-Antarctic...
(2000–1700 Ma) Late Ruker orogeny, also known as the Nimrod orogeny – (1000±150 Ma) Beardmoreorogeny – (633–620 Ma) Ross orogeny – Paleozoic mountain building...
Laurentia, Baltica, Siberia and Gondwana. Petermann Orogeny forms on Australian continent. BeardmoreOrogeny in Antarctica, 633–620 Ma. Ozone layer forms. An...
termed proto-) Trans-Antarctic Mountains were uplifted earlier by the Beardmoreorogeny but had eroded as a broad epicratonic sea flooded much of Antarctica...
will feature less overall ice coverage of the planet c. 633 Ma – BeardmoreOrogeny (to c. 620 Ma) in Antarctica: reflection of final break-up of Rodinia...
strata include the Turnpike Bluff Formation, the Beardmore Group, and the Skelton Group. The Beardmoreorogeny occurred during the Late Proterozoic, and is...
Formation. The formation postdates the BeardmoreOrogeny of the Neoproterozoic, and was deformed by the Ross Orogeny. The formation has provided fossils...
Transantarctic Mountains and the Pensacola Mountains as a result of the Beardmoreorogeny during the Late Neoproterozoic to Early Cambrian were folded by the...
Skelton Group. The region between the lower Beardmore Glacier and the lower Shackelton Glacier sits the Beardmore Group. North of the Nimrod Glacier are four...
Ma Kimban–Nimrod Orogeny, with a suture zone that may be at or near the location of the Nimrod Group. The range is in the Beardmore-Nimrod Glacier area...
suggests it gained its present form from block faulting during the Victoria Orogeny. The bulk of the Holyoake and Swithinbank Ranges are made up of the Shackleton...
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