San Jorge Gulf

San Jorge Gulf
San Jorge Gulf
Location	Chubut Province Santa Cruz Province Argentina
Coordinates	46°04′52″S 66°50′11″W / 46.08111°S 66.83639°W / -46.08111; -66.83639
Type	Ocean basin
Max. length	148 km (92 mi)
Max. width	244 km (152 mi)
Average depth	85 m (279 ft)
Residence time	2 hours
Settlements	Comodoro Rivadavia Rada Tilly Caleta Olivia

The San Jorge Gulf (Golfo San Jorge; Spanish for Gulf of St. George) is a bay in southern Patagonia, Argentina. It is an ocean basin opening to the Atlantic. Its shoreline spans Chubut and Santa Cruz province. The gulf measures approximately 142 miles (229 km) at its mouth and covers approximately 39 square kilometres (15 sq mi). It is located between Cape Dos Bahías and Cape Tres Puntas.

Due to its geography, more than 70% of the gulf's basin is between 70 metres (230 ft) and 100 metres (328 ft) deep. To the south it is about 50 metres (164 ft) 60 metres (197 ft) deep and in the north 90 metres (295 ft). The seabed was formed by bivalves and cirripedial remains, and it consists of mud, sand, gravel, and sand with carbonate.

The mean water temperature varies between 5.09 °C (41 °F) and 13.41 °C (56 °F); salinity is around 33000 ppm.