Browsing Institute's contributions by Subject "Indian Ocean"
Now showing items 21-40 of 131
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Chemistry of surface sediment along a north-south transect across the equator in the Central Indian Basin: An assessment of biogenic and detrital influences on elemental burial on the seafloor
(Elsevier, 1998)The detailed chemistry of the surface sediment collected along a north-south transect across the equator in the Central Indian Ocean suggest that: biogenic sedimentation north of equator is dominated by carbonate ooze and ... -
Chlorophyll modulation of mixed layer thermodynamics in a mixed-layer isopycnal General Circulation Model - An example from Arabian Sea and equatorial Pacific
(Indian Academy of Sciences, 2002)Western tropical Indian Ocean, Arabian Sea, and the equatorial Pacific are known as regions of intense bio-chemical-physical interactions: the Arabian Sea has the largest phytoplankton bloom with seasonal signal, while the ... -
Climate fluctuations of tropical coupled systems — The role of ocean dynamics
(American Meteorological Society, 2006)The tropical oceans have long been recognized as the most important region for large-scale ocean-atmosphere interactions, giving rise to coupled climate variations on several time scales. During the TOGA decade, the focus ... -
Comment on "The Great Sumatra-Andaman Earthquake of 26 December 2004"
(American Association for the Advancement of Science, 2005)Lay et al. (Special Section, 20 May 2005, p.1127) estimated a 600-km length for the tsunami source region. Adding tide-gauge data from Paradip, the northernmost of the Indian east-coast stations and therefore the most ... -
Composition and genesis of zeolitic claystones from the central Indian Ocean Basin
(Geological Society of China, 2007)More than fifty indurated sediments recovered from the Central Indian Ocean Basin (CIoB) are examined during the course of collection for manganese nodules and crusts. The samples occur as slabs either over which ferromanganese ... -
Coupling Between The North Indian Ocean And The Monsoons: A Model Based Study Of The Thermal Structure Cycling In The Central Arabian Sea
(2005)To examine the role of various intervening processes in controlling the upper ocean thermal structure in the central Arabian Sea, a 1-D mixed-layer model based on turbulent closure scheme is forced by atmospheric fluxes ... -
Deciphering the modern calcification depth of Globigerina bulloides in the southwestern Indian Ocean from its oxygen isotopic composition
(Cushman Foundation for Foraminiferal Research, 2010)The water depth at which the planktic foraminiferal species Globigerina bulloides calcifies its shell has been deciphered based on the oxygen isotopic composition of its shells in surface sediment samples collected from ... -
Deep-sea ecosystems of the Indian Ocean
(NISCAIR, CSIR, 2005)The deep Indian Ocean is composed of a variety of habitat types, including abyssal plains, oxygenated slopes and basins, seamounts, and trenches. The geomorphological features of the Indian Ocean include mid-ocean ridges, ... -
Delta ¹³C depleted oceans before the termination 2: More nutrient-rich deep-water formation or light-carbon transfer?
(NISCAIR, CSIR, 2005)Carbon-isotopes (delta ¹³C) composition of benthic foraminifera has been extensively used to understand the link between deep-water circulation and climate. Equatorial Indian Ocean delta ¹³C records of planktic- and ... -
Depth anomalies in the Arabian Basin, NW Indian Ocean
(Springer, 2008)Unreported depth anomalies in the Arabian Basin, northwest Indian Ocean is presented previously, to provide constraints on the evolution of the oceanic lithosphere of that basin. The depth anomaly reported in this study ... -
Differential dissolution of biogenic carbonates: Implications of secretion at higher pH
(The Palaeontological Society of India, 2010)A selective preferential dissolution of a few initial chambers of several specimens of calcareous planktic foraminifera Globigerinoides rubber has been noted in the surface sediments collected from the eastern Arabian Sea ... -
Distribution, abundance and vertical migration pattern of krill - Euphausia superba Dana at fishing area 58 of the Indian Ocean sector of Southern Ocean
(Indian Academy of Sciences, 2005)The First Indian Antarctic Krill Expedition (FIKEX) was an attempt to examine and obtain first-hand information pertaining to distribution, abundance and vertical migration pattern of krill –Euphausia superba Dana at fishing ... -
Drift pumice in the central Indian Ocean Basin: Geochemical evidence
(Elsevier, 2008)Abundant white to light grey-coloured pumice without ferromanganese oxide coating occurs within the Quaternary sediments of the Central Indian Ocean Basin (CIOB). Two distinct groups of pumice are identified from their ... -
Ecobiology and Fisheries of an Economically Important Estuarine Fish, Sillago sihama (Forsskal)
(2008)Goa with about 105 km long coastline has vast resources of marine shellfish and finfish. Fish is a protein rich food and for the state of Goa it assumes special significance as it forms one of the chief components in the ... -
Effects of natural and human-induced hypoxia on coastal benthos
(European Geosciences Union, 2009)Coastal hypoxia (defined here as <1.42 ml L sup(-1); 62.5 mew M; 2 mg L sup(-1), approx. 30% oxygen saturation) develops seasonally in many estuaries, fjords, and along open coasts as a result of natural upwelling or from ... -
Evaluation of the CaCO3 dissolution proxies in sediment cores from above the lysocline
(Elsevier, 2010)Calcium carbonate analyses were carried out from two size fractions (less than 63 mu m and more than 63 mu m) from the Ocean Drilling Program Sites 752 and 715 collected from above the lysocline depth in the Indian Ocean, ... -
First report of Limnoricus ponticus Dovgal and Lozowskiy (Ciliophora: Suctorea) as epibionts on Pycnophyes (Kinorhyncha) from the Indian Ocean with key to species of the genus Limnoricus
(Station Biologique de Roscoff, 2008)This article deals with the characteristics of the suctorian Limnoricus ponticus Dovgal and Lozowskiy, 2008 that was observed for the first time on Kinorhyncha as a host and in a new locality (the Indian Ocean). In addition ... -
Gas hydrate-related proxies inferred from multidisciplinary investigations in the India offshoe areas
(Indian Academy of Sciences, 2006)The presence of gas hydrates along the Indian continental margins has been speculated by earlier workers based on the identification of Bottom Simulating Reflection (BSR) on the multichannel seismic reflection records and ... -
Geochemical characterization of oceanic basalts using artificial neural network
(BioMed Central Ltd, 2009)The geochemical discriminate diagrams help to distinguish the volcanics recovered from different tectonic settings but these diagrams tend to group the ocean floor basalts (OFB) under one class i.e., as mid-oceanic ridge ... -
Geochemical implications of gabbro from the slow-spreading Northern Central Indian Ocean Ridge, Indian Ocean
(Cambridge University Press, 2011)Gabbro samples (c. < 0.4 Ma old) dredged from close to the ‘Vityaz Megamullion’ on the slow-spreading Northern Central Indian Ridge (NCIR, 18-22 mm yr sup(-1)) include mostly olivine gabbro and Fe-Ti oxide gabbro. The ...