Institute's contributions: Recent submissions
Now showing items 2001-2020 of 9252
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Mineral chemistry and alteration characteristics of spinel in serpentinised peridotites from the northern central Indian Ridge
(Geological Society of India, 2015)Serpentinites (frequently cross cut by gabbroic dikelet), collected from Northern Central Indian Ridge (NCIR), Indian Ocean, contain both Cr-rich (Group I) and Cr-poor (Group II) variety of spinel. Based on mineralogy they ... -
Variability in stratification and flushing times of the Gautami-Godavari estuary, India
(Indian Academy of Sciences, 2015)In order to examine the influence of forcing (river flow and tides) and anthropogenic activities (dredging and dam regulation) on stratification, a study was conducted over a period of 19 months (June 2008– December 2009) ... -
Seasonal variability of salinity and salt transport in the northern Indian Ocean
(American Meteorological Society, 2015)Analyses using a suite of observational datasets (Aquarius and Argo) and model simulations are carried out to examine the seasonal variability of salinity in the northern Indian Ocean (NIO). The model simulations include ... -
Observational evidence of mixed rossby gravity waves at the central equatorial Indian Ocean
(Springer, 2015)Six-hourly soundings (GPS sonde) were carried out at the central equatorial Indian Ocean (80º–83ºE) during 25th September–10th October 2011 under the CINDY2011 (Cooperative Indian Ocean Experiment on Intra-seasonal variability ... -
Complementary terrain/single beacon-based AUV navigation
(University of Porto, 2015)This paper describes work done towards the development of advanced geophysical-based navigation systems for autonomous underwater vehicles (AUVs). The specific problem that we tackle is that of combining terrain-aided ... -
Salinity response to seasonal runoff in a complex estuarine system (Cochin estuary, west coast of India)
(Coastal Education and Research Foundation, 2015)The hydrographic conditions in Cochin estuary are investigated using longitudinal measurements of salinity profiles during a 1-year period. The estuary transformed from salt wedge conditions during the wet season to a ... -
Biogeosciences connecting earth`s spheres from microscopic to global scales
(European Geosciences Union, 2015)Mineralogical and elemental analyses of 20 ferromanganese (FeMn)-coated pumice samples from the Central Indian Ocean Basin (CIOB) indicate that todorokite is the major mineral phase, whereas vernadite occurs only rarely. ... -
The tectonic stress field evolution of India since the Oligocene
(Elsevier, 2015)A multitude of observations suggest neotectonic deformation in and around India, but its causes and history are unknown. We use a 2 dimensional finite element model with heterogeneous elastic strengths in continental regions ... -
A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys
(Elsevier, 2015)Despite several decades of investigations, inferences on the timing and nature of collisions along the Mesozoic–Cenozoic Eurasian margin remain controversial. We assimilate geological and geophysical evidence into a plate ... -
Trends in surface wind speed and significant wave height as revealed by ERA-Interim wind wave hindcast in the Central Bay of Bengal
(Royal Meteorological Society, 2015)The Arabian Sea and Bay of Bengal (BoB) regions are special interested sea areas in the Northern Hemisphere with large seasonal variability. This study focused on the long-term wind and wave in the central BoB from 1979 ... -
Interhemispheric controls on deep ocean circulation and carbon chemistry during the last two glacial cycles
(American Geophysical Union, 2015)Changes in ocean circulation structure, together with biological cycling, have been proposed for trapping carbon in the deep ocean during glacial periods of the Late Pleistocene, but uncertainty remains in the nature and ... -
Hydrothermal signature in ferromanganese oxide coatings on pumice from the Central Indian Ocean Basin
(Springer, 2015)Mineralogical and elemental analyses of 20 ferromanganese (FeMn)-coated pumice samples from the Central Indian Ocean Basin (CIOB) indicate that todorokite is the major mineral phase, whereas vernadite occurs only rarely. ... -
Environmental issues of deep-sea mining
(Elsevier, 2015)As terrestrial mineral deposits are either depleting or of low grade, minerals from the deep-sea like the polymetallic nodules, cobalt rich crusts and polymetallicsulfides are considered as alternative sources for metals ... -
Reduction of mercury (II) by humic substances-influence of pH, salinity of aquatic system
(Springer, 2015)This study demonstrates that under abiotic dark conditions in aquatic system, humic substances are not only capable of converting Hg(II) to Hg<sup>0</sup> but also able to bind Hg(II) ion. The degree of Hg(II) reduction ... -
Evolution of productivity and monsoonal dynamics in the eastern Arabian Sea during the past 68 ka using dinoflagellate cyst records
(Elsevier, 2015)For the first time here we report the dinoflagellate cyst assemblage response to the monsoon variability over the last 68 ka from the Eastern Arabian Sea (EAS). Based on the cyst assemblage, five dinoflagellate cyst zones ... -
Genotoxic potency of mercuric chloride in gill cells of marine gastropod Planaxis sulcatus using comet assay
(Springer, 2015)In vivo and in vitro exposures were used to investigate the genotoxicity of mercuric chloride (HgCl<sub>2</sub>) to the marine snail, Planaxis sulcatus. The comet assay protocol was validated on gill cells exposed in vitro ... -
Observed decadal changes in extent of mangroves and coral reefs in southern Gulf of Kachchh using principal component analysis and geo-spatial techniques: A case study
(Springer, 2015)The identification of temporal change in the extent of coral reefs and mangroves patches along the Narara and Kalubhar islands was performed using multi-temporal data from 1999 to 2010 (LISS III and LISS IV (MX)). For ... -
Effect of biofilm on fluorescence measurements derived from fast repetition rate fluorometers
(Taylor and Francis, 2015)This study evaluates, for the first time, the influence of biofilms on single and double optical window (SOW and DOW, respectively) fast repetition rate fluorometer (FRRF) measurements of microalgal photosystem-II initial ... -
Isolation of stigmast-5,24-dien-3-ol from marine brown algae Sargassum tenerrimum and its antipredatory activity
(Royal Society of Chemistry, 2015)In recent years many sterols with potent biological activity have been identified from marine sources. Here we report the isolation of stigmast-5,24-dien-3-ol (fucosterol) as a major metabolite from the bioactive hexane-fraction ... -
Bis(indolyl)methane alkaloids: Isolation, bioactivity, and syntheses
(Georg Thieme Verlag Stuttgart, 2015)Bis(indolyl)methane (BIM) alkaloids are an important group of bioactive natural products predominantly found in marine organisms. Thus, compounds like arsindoline A and B, vibrindole A, arundine, and trisindoline are found ...