| Algarve Basin | |
| Named For: | Algarve |
| Pushpin Relief: | 1 |
| Coordinates: | 36.8°N -8°W |
| Region: | Algarve |
| Country: | Portugal |
| Onoffshore: | Onshore/offshore |
| Basin Type: | Extensional |
| Age: | Mesozoic |
The Algarve Basin is a Mesozoic sedimentary basin located in southernmost Portugal, extending southwards offshore. It was formed during the Late Triassic by rifting associated with the first stage of the break-up of the Pangaea supercontinent. The basin fill consists of two main sequences that represent the two main phases of rifting: Later Triassic to Early Jurassic and Middle Jurassic to Cenomanian. The basin was inverted during the Alpine orogeny in the Cenozoic.[1]