title: Heroína Island
text: # Heroína Island
  
  Heroína Island is a small island in Antarctica, marking the northeast end of the Danger Islands, east-southeast of Joinville Island. It was named by the Argentine Antarctic Expedition, 1948–49, after the expedition ship Heroína, the name being approved by the Advisory Committee on Antarctic Names in 1993.
  
  ## Geology
  
  Heroina Island is composed of Mesozoic granodiorite, related to the great Mesozoic Andean subduction zone that extended from here to Central America.
  
  