Argentine Antarctica Argentine Antarctica Argentine Antarctica () is a sector of Antarctica claimed by Argentina as part of its national territory consisting of the Antarctic Peninsula and a triangular section extending to the South Pole, delimited by the 25° West and 74° West meridians and the 60° South parallel. This region overlaps with British and Chilean claims in Antarctica; however, all claims are suspended by the Antarctic Treaty System, of which Argentina is a founding signatory and permanent consulting member, with the Antarctic Treaty Secretariat being based in Buenos Aires. Administratively, Argentine Antarctica is a department of the province of Tierra del
Brazilian Antarctica Brazilian Antarctica Brazilian Antarctica ( or "Antártica Brasileira") is the name of the Antarctic territory south of 60°S, and from 28°W to 53°W, proposed as "Zone of Interest" by geopolitical scholar Therezinha de Castro. While the substance of that designation has never been precisely defined, it does not formally contradict the Argentine and British claims geographically overlapping with that zone (the zone shares a border but does not overlap with the Chilean Antarctic Territory to its west). The country formally expressed its reservations with respect to its territorial rights in Antarctica when it acceded to the Antarctic Treaty on 16