Indian Ocean Basin

The distribution of CaC03 in Indian Ocean basin sediments has been examined by Kolia et al. (1976). Their plot of surface sediment carbonate distribution is presented in Figure 4.19. Again the first order control of carbonate... 

The Mid-Indian Ridge then divides along the center of the Indian Ocean basin, with a second arc curving away south of the Australian continent. As that ridge continues eastward from Australia, it eventually heads northward on the floor of the Pacific Ocean, along the western coastline of South and Central America. In this region, the ridge is known as the East... 

Banerjee, R., 2000. A documentation of burrows in hard substrates of ferromanganese crusts and associated soft sediments from the Central Indian Ocean Basin. Current Science, 79 517-521. 

Jauhari, P. and Pattan, J.N., 2000. Ferromanganese nodules from the Central Indian Ocean Basin. In Cronan, D.S. (ed.). Handbook of marine minerals. CRC Press, Boca Raton, Florida, pp. 171-195. 

Indian Ocean In the Indian Ocean, Mn-, Ni-, and Cu-rich nodules are present in the Central Indian Ocean Basin between about 5° and 15°S. They are largely diagenetic in origin and rest on siliceous sediments below the CCD under high productivity waters. The deposits show north-south compositional... 

The relationship between magnetic susceptibility / and chemical composition of three sediment types from the Central Indian Ocean Basin was analyzed [08P1]. It was conclnded that the low-frequency magnetic susceptibility can be used as an indicator of terrigenous influence in both siliceous and carbonate sediment types, where it behaves identical to that of detrital representing elements snch as Al, Fe, and Ti. In terrigenous sedimenf x behaves similar to Ti content only, but not with Al and Fe, suggesting that both Al and Fe were not... 

Olivine basalt, Reunion Island (avg. of 2) Indian Ocean Basin 18.53 15.69 38.77 Cooper and Richards (1966 b)... 

The National Institute of Oceanography (Goa, India) conducted the Indian Deep-sea Environment Experiment (INDEX) for the Department of Ocean Development (Government of India) in 1997 in a pre-selected area in the Central Indian Ocean Basin after a detailed baseline study during 1995-1997. The DSSRS was used 26 times in an area of 200 x 3,000 m (656 x 9,842 ft) (Desa, 1997). Post-disturbance impact assessment studies indicated vertical mixing of sediment, lateral distribution of suspended particles, and differential effects on microbial, meio and macrobenthos both inside and outside the disturbance track (Ingole, Ansari, Matondkar, Rodrigues, 1999). The post experiment monitoring results after 5 years were reported by Sharma et al. (2003). 

Like the Atlantic, the Indian Ocean is characterized by foram oozes along its mid-ocean ridge and most of its abyssal plains. Only in basins where the water depths exceed 5000 m are abyssal clays abundant. 

TRITON system is being enhanced by allocation of new buoys (e.g., along the equator in the Indian Ocean). Together with data obtained using BATS, HOT, OFP, and other components of the autonomous anchored stations to monitor different basins of the World Ocean, an information database is being accumulated for more reliable estimation of GMNSS input parameters. 

Chernova, T.G., Rao, P.S., Pikovskii, Yu.I., Alekseeva, T.A., Nagender Nath, B., Ram-alingeswara Rao, B., Rao, Ch.M., 2001. The composition and the source of hydrocarbons in sediments taken from the tectonically active Andaman Backarc Basin, Indian Ocean. Mar. Chem. 75, 1-15. 

The Black Sea and the Sea of Azov are elements of the system of inland basins, which represent relics of the formerly vast ocean basin of the Paratethys (Fig. 1). This enormous basin existed at the end of the Paleogene and the beginning of the Neogene and was connected to the Atlantic and Indian oceans. During its geological history, it has passed a complicated evolution from large sea basins to individual isolated brackish-water and freshwater basins. 

The NO3 content of upweUing water is strongly influenced by the location of a system (Codispoti et al., 1982) in the global oceanic conveyer belt that transports deep water through the ocean basins (Broecker and Peng, 1982, their Fig. 1.12). From the North Atlantic to the Pacific and Indian Oceans through the Antarctic Circumpolar Current, there are increasing nutrients, from the faUout of surface productivity. 

---