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  • 1
    Keywords: Geochemistry. ; Paleontology . ; Sedimentology. ; Geochemistry. ; Paleontology. ; Sedimentology.
    Description / Table of Contents: Scientific drilling in the Indian Ocean: An Earth system process perspective -- Morphological and chemical properties of microtektite grains from Bay of Bengal (IODP Expedition 354) -- Assessing Mid-Pleistocene to Holocene Sea-ice Extent and Carbonate Compensation Depth fluctuations in the Japan Sea: a multiproxy approach -- Modern Radiolarians Recovered from the mudline samples at IODP-341 sites in the South Alaska Basin, North East Pacific Ocean -- Carbon Stable Isotope Source Signature of Bulk Organic Matter in Middle Bengal Fan Sediment Collected During IODP Expedition 354 -- Geochemistry of Marine Carbonates from Hole 1394, off the coast of Montserrat, IODP Expedition-340; Implications on provenance, paleoenvironment and Lesser Antilles arc migration -- Morpho-taxonomy of Corycaeid cyclopoids from Lakshadweep Sea, South Eastern Arabian Sea- a part of the Indian Ocean -- Sedimentological attributes and quartz microtexture in the levee sediments of a submarine channel in context of the East Antarctic ice sheet fluctuations: A study from site U-1359 of IODP-318 expedition -- Late Quaternary sedimentation and slope failure events on the Costa Rican margin -- Mt COI sequence-based barcoding of calanoid copepods from lagoon waters of Lakshadweep, South-West coast of India -- A Summary of the South China Sea Evolution -- Microbial Community Profile and Deep-sea sediment of Eastern Arabian Sea (IODP 355).
    Abstract: This book highlights Indian scientific endeavours and contributions to answering the vast multitude of questions posed by our changing environment. The International Ocean Discovery Program (IODP) explores Earth’s history and dynamics using deep ocean drilling platforms to recover the data locked inside seafloor sediments and rocks. Since 2009, Indian scientists have been actively engaged in these expeditions. Scientists from various Earth Science disciplines have seized this opportunity to offer their expertise in order to help unravel the mysteries of the past – by delving deep into the valuable sedimentary records of our oceans. This book presents a compilation of some of their most important findings to motivate and encourage young minds for their enhanced role in the cutting edge science of ocean drilling.
    Type of Medium: Online Resource
    Pages: XIV, 283 p. 121 illus., 80 illus. in color. , online resource.
    Edition: 1st ed. 2020.
    ISBN: 9783030406592
    Series Statement: Society of Earth Scientists Series,
    DDC: 551.9
    Language: English
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  • 2
    Publication Date: 2024-01-29
    Description: Deep-sea sediments from the International Ocean Discovery Program (IODP) Site U1457 (Laxmi basin, Northern Indian Ocean) at ~1100 meters below the seafloor (mbsf) of the Danian period (c. 66 – 61.6 Ma) are examined, which suggest that the foraminifera subsisted across the major geologic events. A foraminiferal census count (%) was performed under a microscope and species belonging to Bolivina, Bulimina, Cassidulina, Cibicidoides, Epistominella, and Oolina genera are found to be dominant in the region (Table 1). The species were grouped under relative abundance (benthic/planktic), habitual preference (infauna/epifauna), and shell composition (calcareous/agglutinated) with literature references (Table 2). Calcium carbonate (%) was calculated from inorganic carbon values analyzed in a coulometer (Table 2). Magnetic susceptibility of low frequency is measured through a Bartington MS2B sensor and the units of measurement are defined in Table 2. The assemblage of benthic foraminifera belonging to each morphogroup (Table 3). Oxic, Suboxic, Dysoxic benthic foraminifera and Oxygen content were calculated through transfer function from oxyphillic species (Table 4). Benthic foraminifera diversity pattern Fisher alpha calculated through PAST software. All the foraminifera representations are made in percentage and depth in the units of meters below the seafloor.
    Keywords: Calcium Carbonate; Danian; Foraminifera; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Laxmi basin; Northern Indian Ocean
    Type: Dataset
    Format: application/zip, 5 datasets
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  • 3
    Publication Date: 2024-01-29
    Keywords: 355-U1457C; Calcium Carbonate; Danian; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Exp355; Foraminifera; Foraminifera, benthic, biserial; Foraminifera, benthic, planispiral; Foraminifera, benthic, triserial; Foraminifera, benthic, trochospiral; Foraminifera, benthic, tubular; Foraminifera, benthic, unilocular; Foraminifera, benthic, uniserial; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Laxmi basin; Miliolinae; Northern Indian Ocean
    Type: Dataset
    Format: text/tab-separated-values, 88 data points
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  • 4
    Publication Date: 2024-01-29
    Keywords: 355-U1457C; Calcium Carbonate; Danian; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Exp355; Fishers alpha index of diversity; Foraminifera; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Laxmi basin; Northern Indian Ocean; PAST software
    Type: Dataset
    Format: text/tab-separated-values, 11 data points
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  • 5
    Publication Date: 2024-01-29
    Keywords: 355-U1457C; Calcium Carbonate; Danian; DEPTH, sediment/rock; Dissolved oxygen index; DRILL; Drilling/drill rig; Exp355; Foraminifera; Foraminifera, benthic, dysoxic fauna; Foraminifera, benthic, oxic fauna; Foraminifera, benthic, suboxic fauna; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Laxmi basin; Northern Indian Ocean; Oxygen transfer function of Drinia et al. (2004)
    Type: Dataset
    Format: text/tab-separated-values, 44 data points
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  • 6
    Publication Date: 2024-01-29
    Keywords: 355-U1457C; Bolivina spp.; Bulimina spp.; Calcium Carbonate; Cassidulina spp.; Cibicidoides spp.; Danian; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Epistominella spp.; Exp355; Foraminifera; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Laxmi basin; Northern Indian Ocean; Oolina spp.
    Type: Dataset
    Format: text/tab-separated-values, 66 data points
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  • 7
    Publication Date: 2024-01-29
    Keywords: 355-U1457C; Calcium carbonate; Calcium Carbonate; Danian; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Exp355; Foraminifera; Foraminifera, benthic; Foraminifera, benthic, epifaunal; Foraminifera, benthic, infaunal; Foraminifera, benthic agglutinated; Foraminifera, benthic calcareous; Foraminifera, planktic; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Laxmi basin; Northern Indian Ocean; Susceptibility, specific
    Type: Dataset
    Format: text/tab-separated-values, 88 data points
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  • 8
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 3 (Jan. 1985), p. 143-156 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 86 (1999), S. 3327-3332 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Dielectric and x-ray diffraction evidences are presented to show that the antiferroelectric to ferroelectric phase transition in (Pb0.90Ba0.10)ZrO3 ceramics is not reversible during the cooling cycle. It is shown that the stable antiferroelectric phase recovers from the metastable ferroelectric matrix on aging at room temperature. The kinetics of recovery of the antiferroelectric phase is very sluggish. It is pointed out that this type of irreversibility occurs in field induced antiferroelectric to ferroelectric transitions also. This may have serious implications for the actuator applications of these materials. It is proposed that the large transformation strains associated with the antiferroelectric orthorhombic to ferroelectric rhombohedral phase transition is responsible for this irreversibility. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 88 (2000), S. 5364-5373 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Phase transitions in semiwet derived (Pb1−xBax)ZrO3 ceramics for the composition range 0≤x≤0.30 have been investigated by dielectric measurements at various frequencies during heating and cooling cycles. The paraelectric (PE) to ferroelectric (FE) to antiferroelectric (AFE) sequence of phase transitions is observed for 0≤x〈0.20. On increasing the Ba2+ content from x=0 to x=0.05, the thermal hysteresis associated with the AFE–FE phase transition increases from 11 to 100 °C. This is attributed to the increase in the piezoelectric coupling between the strain and polarization. For x=0.20, the FE phase does not transform into the AFE phase on cooling. Pronounced deviations from the regular FE behavior are observed on increasing the Ba2+ content to x=0.25. For x=0.30, the temperatures corresponding to the peak values of the real and imaginary parts of the dielectric constant become frequency dependent indicating relaxor FE behavior. It is shown that the polar clusters present in the PE phase undergo Vogel–Fulcher type relaxational freezing in the relaxor FE phase. The results of temperature dependent polarization measurements confirm the findings of the dielectric studies. It is proposed that Ba2+ substitution modifies the AFE and FE interactions of the PbZrO3 matrix in such a manner that their strengths become comparable for x=0.30 leading to the glassy or relaxor behavior. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
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