Sediments in Joseph Bonaparte and Van Diemen Gulfs, Australia – July 14th, 201113.3S 129.3E
Sediments frame the coastline of northwestern Australia. They are most dense in the Joseph Bonaparte Gulf, a large body of water off the coast of the Northern Territory, Australia and Western Australia. The Ord River and Victoria River drain into the gulf, giving it its dark tan color.
Moving northeastward up the coast, one comes to the Van Diemen Gulf, a gulf between Arnhem Land, of the attached Cobourg Peninsula and Melville Island in northern Australia. Rivers draining into the Gulf include the South Alligator River, the East Alligator River and the Adelaide River, giving it its greenish color.