| Tierra Igneous and Metamorphic Complex | |
|---|---|
| Stratigraphic range: Cambrian | |
| Type | Complex |
| Underlies | Tobífera Formation |
| Lithology | |
| Primary | Orthogneiss |
| Location | |
| Coordinates | 54°30′S 67°10′W / 54.5°S 67.16°W / -54.5; -67.16 |
| Region | Magallanes Region Tierra del Fuego Province |
| Country |  Chile Argentina |
| Type section | |
| Named for | Tierra del Fuego |
  Tierra del Fuego Igneous and Metamorphic Complex (Chile) | |
Tierra del Fuego Igneous and Metamorphic Complex is a geological basement complex known from boreholes in northern Tierra del Fuego.[1][2] The complex is made up of foliated igneous rocks of Cambrian age including orthogneiss.[1][2] It underlies unconformably the Jurassic Tobífera Formation. The protolithsofCordillera Darwin Metamorphic Complex are unrelated to Tierra del Fuego Igneous and Metamorphic Complex despite present-day proximity.[1]
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