DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 3991-4010 of 9513
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Organic carbon in the sediments of the lower reaches of Periar River
(Indian Fisheries Association, 1992)Sediments are indicators of the quality of water overlying them and hence, useful in the assessment of environmental pollution. Temporal and spatial variations in sediment characteristics and organic carbon content from 9 ... -
Textural studies of beach sediments from Sadashivagad and Karwar, Central west coast of India
(Indian Society of Earth Sciences, Calcutta, 1992)Analysis of textural parameters such as mean grain size, standard deviation, skewness and kurtosis was done for 48 surface sediment samples of two close but separate beaches, namely Sadashivagad and Karwar, in the Central ... -
Marine geophysical studies along a transect across the continental margin off Bombay coast, west of India
(Oxford and IBH, New Delhi, 1992)Study of underway geophysical data along a transect of 415 km across the continental margin off Bombay, (Maharashtra, India), between 800 and 3600 m water depths reveals seven seismic sequences consisting of parallel and ... -
Stable isotopic variations in foraminiferal test from Arabian Sea and its relation to the annual south-west monsoonal rainfall over the Indian subcontinent
(Current Science Association, Bangalore, India, 1992)Examination of delta 18O estimations from the planktonic foraminifera, Globigerinoides ruber, collected at fortnightly intervals using deep sea sediment traps moored at depths of 1000 and 2787 m in the Eastern Arabian Sea ... -
A critical evaluation of depositional parameters controlling the variability of organic carbon in Arabian Sea sediments
(Elsevier, 1992)Organic carbon distribution in the surficial sediments of the Arabian Sea to some extends mirrors the surface productivity, being both high in the peripheral portions and low in the central region, suggesting that the ... -
Planktonic percentage of foraminiferal fauna in surface sediments of the Arabian sea (Indian Ocean) and a regional model for paleodepth determination
(Elsevier, 1992)The percentage of planktonic specimens in foraminiferal assemblages were determined in 126 surface sediment samples (depth range 13 to 1050 m) from the Arabian Sea along the western continental margin of India. The results ... -
The Cretaceous-Tertiary sea floor off Dronning Maud Land, Antarctica
(Elsevier, 1992)A study of the bathymetric and linear magnetic anomalies between Dronning Maud Land, Antarctica and the South West Indian Ridge (SWIR) revealed a Mesozoic sequence of linear magnetic anomalies, M0 to M12 (108-126 Ma), a ... -
Geophysical studies for the evaluation of offshore placer deposits and basement configuration
(Oxford and IBH, New Delhi, 1992)The marine geophysical studies carried out on the inner continental shelf of the central west coast of India suggested the offshore extension of onshore placer deposits upto 12 m water depths, and beyond these depths sands ... -
Sulphur enrichment in a sediment core from the central western continental margin of India
(Current Science Association, Bangalore, India, 1992)Anomalous sulphur values in relation to organic carbon have been found in the sediments of a core collected from the central western continental margin of India. The relationship between organic carbon and sulphur is similar ... -
Possible microbial origin of phosphorites on Error Seamount, northwestern Arabian Sea
(Elsevier, 1992)Petrographical, mineralogical and microprobe analysis of phosphorites from Error Seamount, in the northwestern Arabian Sea, demonstrates that microbial processes played an important role in the early diagenetic formation ... -
Evaluation of the toxicity of organic matter in marine sediments
(IWA Publishing, 1992)The inhibitory effects of the organics from the sediment along the east coast of India on acetylcholinesterase (AChE) in-vitro were evaluated. Sediment samples collected from the surface layers at various depths were ... -
Phosphatic rocks and manganese crusts from seamounts in the EEZ of Kiribati and Tuvalu, Central Pacific Ocean
(Circum-Pacific Council for Energy and Mineral Resources, 1992) -
Submarine physiography off Lakshadweep Islands, Arabian Sea
(Oxford and IBH, New Delhi, 1992)Analysis of echosoundings, side scan sonar and shallow seismic data, supplementEd. by 152 sediment samples, collected along 150 km around Lakshadweep Islands, Arabian Sea, revealed that the islands have a very narrow shelf, ... -
Biogenic silica in space and time in sediments of Central Indian Ocean
(NISCAIR, New Delhi, 1992)Biogenic silica content in 50 surface sediments and in 7 sediment cores from Central Indian Ocean shows a variation from 1.88 to 35.76%, while radiolarian abundance (number.g/1 dried sediment) ranges from 500 to 345000. ... -
Geochemistry, factor analysis and clay mineral distribution of the sediments and relationship with the associated ferromanganese nodules from the SW Carlsberg ridge
(Indian Association for Limnology and Oceanography, 1992)Calcareous clay and ooze from the southwestern Carlberg Ridge show wide range of concentrations in Si (4.62-23.88%), Al (1.63-7.98%), Ti (0.43-1.70%) and CaCO sub(3) (8.50-79.75%) and reveal association of the elements ... -
Geophysical survey of marine arcaheological sites off east coast of India
(Aditya Prakashan, New Delhi, 1992) -
Geochemistry of polymetallic nodules from the Central Indian Ocean basin
(Elsevier, 1992)Polymetallic nodules dredged at fourteen stations between 12 degrees-15 degrees S and 76 degrees-80 degrees E in the Central Indian Ocean Basin (CIOB) display wide variations in shape, size, texture, mineral phases and ... -
Clay mineralogy of innershelf sediments off Cochin, west coast of India
(NISCAIR, New Delhi, 1992)Kaolinite, montmorillonite and illite are the clay minerals occurring in decreasing order of abundance in the Holocene sediments of inner shelf and adjacent coastal environments of Cochin Region. Southern part of Vembanad ... -
Late Miocene radiolarian biostratigraphy and paleoceanography of Sawai Bay formation, Neill Island, Andamans, India
(Micropaleontology Press, 1992)Late Miocene radiolarian zones are encountered from mudstone strata of Sawai Bay Formation, Neill Island, Andamans. Percentage data of forty-five coarser taxonomic groups of radiolarians were subjected to Q-mode cluster ...

