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Now showing items 5-24 of 9067
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16SrRNA and enzymatic diversity of culturable bacteria from the sediments of oxygen minimum zone in the Arabian Sea
(Springer, 2010)Sediment underlying the oxygen minimum zone of the eastern Arabian Sea is rich in organic matter. Bacteria in this sediment-water interface are of great ecological importance as they are responsible for decomposing, ... -
18 Ka BP records of climatic changes, Bay of Bengal: Isotopic and sedimentological evidences
(Indian Academy of Sciences, 2001)Based upon the oxygen isotopic records of Globigerinoide sacculifer, the clay mineral assemblages and aridity indicator chlorite/illite (C/I) ratio, the palaeoclimatic changes during the past 18 Ka BP have been archived. ... -
18S rDNA sequencing data of benthic polychaetes from the Eastern Arabian Sea
(Elsevier, 2018)The limited DNA sequence data of the polychaetes species are available from the Eastern Arabian Sea. We have sequenced 18S rDNA gene from 54 polychaetes species and 37 species identified up to the species level. The DNA ... -
2-D model for pollutant dispersion at the coastal outfall off Paradip
(Indira Gandhi Centre for Atomic Research, Kalpakkam, India, 1999)Simulation of dispersion of the effluent discharge has been carried out using 2-D Model to verify the advection and diffusion of the pollutant patch of the proposed effluent disposal off Paradip, Orissa, India. The simulation ... -
2015-16 ENSO contributed reduction in oil sardines along the Kerala coast, south?west India
(2019)Fishery along the west coast of India largely depends on pelagic fish such as oil sardines, which are dominant during the south?west monsoon. However, the response of sardine population to the warming caused by the climatic ... -
210Pb, 230Th, and 10Be in Central Indian Basin seamount sediments: Signatures of degassing and hydrothermal alteration of recent origin
(American Geophysical Union, 2008)Isotopic (sup(210)Pb, sup(238)U-sup(230)Th, sup(10)Be), major and trace elements, and micromorphological and microchemical data, were used to identify recent (approx. 100 yrs) hydrothermal alteration of a greater than 200 ... -
210Pb, 230Th, and 10Be in Central Indian Basin seamount sediments: Signatures of degassing and hydrothermal alteration of recent origin
(Wiley, 2008)Isotopic (sup(210)Pb, sup(238)U-sup(230)Th, sup(10)Be), major and trace elements, and micromorphological and microchemical data, were used to identify recent (approx. 100 yrs) hydrothermal alteration of a greater than 200 ... -
230Th derived glacial to Holocene sediment fluxes in the southern Arabian Sea: insights into carbonate sedimentation
(John Wiley & Sons, Ltd, 2021)We present a record of glacial to Holocene 230Thxs normalized sediment mass fluxes for a site located on the eastern flank of the Carlsberg Ridge, Arabian Sea to evaluate carbonate burial, preservation and surface ocean ... -
234-Th-Based Carbon Export Flux Along the Indian GEOTRACES GI02 Section in the Arabian Sea and the Indian Ocean
(John Wiley & Sons, 2018)234-Th (t1/2 = 24.1 d), present in seawater, is a naturally occurring particle-reactive radionuclide formed through the radioactive decay of its parent, 238U (t1/2 = 4.47 x 109 years). The 234Th:238U disequilibrium is ... -
234Th scavenging and particle export fluxes from the upper 100 m of the Arabian Sea
(Current Science Association, 1996)We have determined the particle scavenging rates, export fluxes of @u234@@Th and settling particles from the upper 100 m of the Arabian Sea as a part of the JGOFS (India) Programme. The spatial and temporal measurements ... -
26th December 2004 great Sumatra-Andaman earthquake: Co-seismic and post-seismic motions in northern Sumatra
(Elsevier, 2007)Trench-parallel thrust faults verging both landward and seaward were mapped in the portion of wedge located between northern Sumatra and the Indian-Indonesian boundary The spatial aftershocks distribution of the 26th ... -
2D NMR Studies of Bromotyrosine Alkaloid, Purpurealidin K from Marine Sponge Psammaplysilla purpurea
(2019)Marine sponges of the order Verongida and related organisms are the richest source of bioactive bromotyrosine alkaloids. Purpurealidin K (1) along with purealidin Q (2), aerophobin 2 (3) and aplysamine 2 (4) were isolated ... -
2D-NMR studies of a novel steroid from the red alga Acantophora spicifera
(American Chemical Society, 1989) -
3-D seismic velocity structure of the Kumaun-Garhwal (Central) Himalaya: insight into the Main Himalayan Thrust and earthquake occurrence
(Oxford Academic, 2022)Objective assessment of seismic hazard and understanding of the Himalayan arc's tectonics requires detailed information on the crustal structure and geometry of the underthrusting Indian Plate beneath the Himalaya. Here, ... -
34S enrichment as a signature of thiosulfate oxidation in the " Proteobacteria "
(Oxford University Press (OUP), 2021)Kinetics of thiosulfate oxidation, product, and intermediate formation, and 34S fractionation, were studied for the members of Alphaproteobacteria Paracoccus sp. SMMA5 and Mesorhizobium thiogangeticum SJTT, the Betaproteobacteria ... -
40Ar/39Ar dating of the Mumbai tholeiites and Panvel flexure: intense 62.5 Ma onshore-offshore Deccan magmatism during India-Laxmi Ridge-Seychelles breakup
(Oxford University Press, 2017)Mumbai, located on the western Indian continental margin, exposes Danian-age Deccan magmatic units of diverse compositions, dipping seaward due to the Panvel flexure. The Ghatkopar-Powai tholeiitic sequence contains ... -
5 alpha - cholestane -3,6-dione from the red alga Acantophora spicifera
(Elsevier, 1987) -
5(R)-Acetoxyspata-13,17-diene, a novel diterpenoid from the brown alga Stoechospermum marginatum
(Thieme Medical Publishers, 1988) -
(-)-6 alpha hydroxy polyanthellian A - A novel antifouling diterpenoid from the Indian soft coral Cladiella krempfi (Hickson)
(NRC Research Press, 2011)Bioassay-guided purification of methanol extract of the soft coral Cladiella krempfi (Octocorallia: Alcynocea) yielded a novel eunicellin-type diterpenoid, (-)-6 alpha-hydroxy polyanthellin A (1), active against the cyprids ... -
60 Myr records of major elements and Pb-Nd isotopes from hydrogenous ferromanganese crusts: Reconstruction of seawater paleochemistry
(Pergamon, 1999)The time series of major element geochemical and Pb- and Ni-isotopic composition obtained for seven hydrogenous ferromanganese crusts from the Atlantic, Indian, and Pacific Oceans which cover the last 60 Myr are compared. ...