Title The Ordovician system in Antarctica
Author Parica, C.A.
Author Affil Parica, C.A., Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina
Source Serie Correlación Geológica, Vol.16, p.361-370, ; International symposium on the Ordovician system, San Juan, Argentina, Aug. 18, 2003, edited by F.G. Aceñolaza. Publisher: Instituto Superior de Correlatión Geológica (INSUGEO), San Miguel de Tucuman, Argentina. ISSN: 1514-4186
Publication Date 2002
Notes In English. 31 refs. GeoRef Acc. No: 287062
Index Terms Antarctica--Ellsworth Mountains; Antarctica--Pensacola Mountains; Antarctica-- Shackleton Range; absolute age; Antarctica; Beacon Supergroup; Bowers Terrane; correlation; Crashsite Group; dates; Ellsworth Land; Ellsworth Mountains; Glacier Blailock Group; Herberts Mountains; Herberts Series; K/Ar; Leap Year Group; lithostratigraphy; Mariner Group; Minaret Group; Neptune Group; Ordovician; orogenic belts; Paleozoic; Patuxent Mountains; Pensacola Mountains; Permian; Robertson Bay Group; Robertson Bay Terrane; Ross Orogeny; Shackleton Complex; Shackleton Group; Shackleton Range; Slededgers Group; tectonics; Transantarctic Mountains; Turnpike Bluff Group; Williams Ridge Group
Abstract Ordovician rocks were recognized in the Trans Antarctic Mountains, Ross Orogen, inside the sector claimed by Argentine, and close to this area, in the Ellsworth Mountains. In the Trans Antarctic Mountains coarse sediments of a probable Ordovician age and a dated volcanism were recognized. Pensacola and Patuxent Mounts comprise the Neptune Group, which consists largely of conglomerate to quartzose sandstone. In Shackleton Range the Blaiklock Group overlies the Shackleton Range Metamorphic Complex. Some other areas like Bowers Terrane and Robertson Bay Terrane display remarkable Ordovician outcrops. The Ross Orogen is largely represented with several magmatic exposures.
Publication Type conference paper or compendium article
Record ID 84614