San Jorge Basin
| San Jorge Gulf | |
|---|---|
 |
|
| Location |
Chubut Province Santa Cruz Province  Argentina
|
| Coordinates | 46°04′52″S 66°50′11″W / 46.08111°S 66.83639°WCoordinates: 46°04′52″S 66°50′11″W / 46.08111°S 66.83639°W |
| 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) 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.
Approximately 90% of Chubut Province's inhabitants live on the coast of the gulf. Comodoro Rivadavia and Caleta Olivia are two larger cities along the coast. Each having ports with oil buoys and fishing facilities.
The fishing towns of Camarones and the seaside resort Rada Tilly also lie along the gulf.
Comodoro Rivadavia is ranked within the national and international market as a center of lobsters and spider crabs. Numerous fishing ports function along the bay, as with wharves and marinas for sport fishing and related activities.
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