Search results for "Sample comment"

showing 6 items of 6 documents

Growth rates of late Miocene corals from Crete (Greece)

2006

Modern scleractinian corals are classical components of marine shallow warm water ecosystems. Their occurrence and diversity patterns in the geological record have been widely used to infer past climates and environmental conditions. Coral skeletal composition data reflecting the nature of the coral environment are often affected by diagenetic alteration. Ghost structures of annual growth rhythms are, however, often well preserved in the transformed skeleton. We show that these relicts represent a valuable source of information on growth conditions of fossil corals. Annual growth bands were measured in massive hemispherical Porites of late Miocene age from the island of Crete (Greece) that …

Growth rateEarth System ResearchLATITUDESample code labelSample commentLONGITUDEGeographic name/localityGeographic name localitySample code/label
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Representative major element compositions of clinopyroxenes and phlogopites from ultrapotassic rocks from Nangqian basin (Eastern Tibet)

2020

Representative major element compositions (in wt%) of clinopyroxenes and phlogopites from Nangqian ultrapotassic rocks. In-situ major-element compositions of mineral phases were obtained using the JEOL JXA-8230 Electron Microprobe at ISTerre, University Grenoble Alpes. Analytical conditions were 15 kV accelerating voltage and 12 nA beam current. The ZAF procedure was applied to reduce the raw data. The microprobe was calibrated using natural and synthetic standards. An X-ray element map of a calcite-bearing aggregate was acquired using 15 kV accelerating voltage and 10 nA beam current.

Elements totalMagnesium numberLongitude of eventmineralWhole-rock geochemistrySample commentElectron microprobe JEOL JXA 8230Latitude of eventcarbonate C-O isotopyChromium(III) oxideManganese oxideSodium oxideIron oxide Fe2O3Iron oxideSilicon dioxideWhole rock geochemistryAluminium oxideMagnesium number liquidtotalMagnesium oxideMineralsElectron microprobe JEOL JXA-8230Event labelcarbonate C O isotopyCalcium oxidein-situ mineral geochemistryPotassium oxideElementsin situ mineral geochemistryMagnesium number mineralChromium III oxideEarth System ResearchTitanium dioxideFe2O3
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Global distributions of diazotrophs nitrogen fixation rates - Depth integrated values computed from a collection of source datasets - Contribution to…

2013

The MAREDAT atlas covers 11 types of plankton, ranging in size from bacteria to jellyfish. Together, these plankton groups determine the health and productivity of the global ocean and play a vital role in the global carbon cycle. Working within a uniform and consistent spatial and depth grid (map) of the global ocean, the researchers compiled thousands and tens of thousands of data points to identify regions of plankton abundance and scarcity as well as areas of data abundance and scarcity. At many of the grid points, the MAREDAT team accomplished the difficult conversion from abundance (numbers of organisms) to biomass (carbon mass of organisms). The MAREDAT atlas provides an unprecedente…

Go-Flo bottlesSalinityCAIBEX-ITrichodesmium nitrogen fixation rateRV Kilo MoanaUniform resource locator link to source data fileNitrateCTD/RosetteLatitude of eventNiskinAlisRoger A RevelleTemperature waterwhole seawatertop minCalculatedbottom maxareal concentrationNitrogen fixation rateTemperatureDepth top/minCTD RosetteUnicellular cyanobacteria nitrogen fixation rateTrichodesmiumRoger A. RevelleNitrogen fixation rate integrated per dayEarth System ResearchMooring (long time)CAIBEX-IIMARine Ecosystem Model Intercomparison Project MAREMIPDiapalis 3Longitude of eventDiapalis 4Diapalis 5Sample methodIronwaterChlorophyll total areal concentrationBottle NiskinWater pumpMARine Ecosystem Model Intercomparison Project (MAREMIP)PhosphateWater sampleSarmiento de GamboaSample commentCAIBOXDiapalis 6Diapalis 7Uniform resource locator/link to source data fileDiapalis 9Go Flo bottlesNitrogen fixation rate whole seawaterintegrated per dayUnicellular cyanobacteriaDate/Time of eventChlorophyll totalMooring long timeDiapalis-7Diapalis-9Diapalis-3Diapalis-4Diapalis-5Diapalis-6DEPTH waterMP-6BottleDepthEvent labelDate Time of eventCAIBEX IIMeasured at sea surfaceMP-9MP 9MP 6CAIBEX IDepth bottom/maxHeterocyst nitrogen fixation rateHeterocyst
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Molecular hydrogen (H2) mixing ratio and stable isotopic composition (dD) at the Cabauw tall tower in the Netherlands (2008-2012)

2016

Measurements of the stable isotopic composition (dD(H2) or dD) of atmospheric molecular hydrogen (H2) are a useful addition to mixing ratio (X(H2)) measurements for understanding the atmospheric H2 cycle. dD datasets published so far consist mostly of observations at background locations. We complement these with observations from the Cabauw tall tower at the CESAR site, situated in a densely populated region of the Netherlands. Our measurements show a large anthropogenic influence on the local H2 cycle, with frequently occurring pollution events that are characterized by X(H2) values that reach up to 1 ppm and low dD values. An isotopic source signature analysis yields an apparent source s…

HEIGHT above groundDATE/TIMEIdentificationδ DeuteriumMonitoring stationDATE TIMEEarth System Researchδ Deuterium standard deviationSample commentHydrogen mixing ratio standard deviationstandard deviationHydrogen mixing ratioQuality code
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Global distributions of diazotrophs Gamma-A nifH genes abundance - Depth integrated values computed from a collection of source datasets - Contributi…

2013

The MAREDAT atlas covers 11 types of plankton, ranging in size from bacteria to jellyfish. Together, these plankton groups determine the health and productivity of the global ocean and play a vital role in the global carbon cycle. Working within a uniform and consistent spatial and depth grid (map) of the global ocean, the researchers compiled thousands and tens of thousands of data points to identify regions of plankton abundance and scarcity as well as areas of data abundance and scarcity. At many of the grid points, the MAREDAT team accomplished the difficult conversion from abundance (numbers of organisms) to biomass (carbon mass of organisms). The MAREDAT atlas provides an unprecedente…

M60/5SalinityChlorophyll aDiazotrophs total biomass as carbonUniform resource locator link to source data fileNitrateCTD/RosetteLatitude of eventNiskinM55 1Temperature waterCalothrix abundance expressed in number of nifH gene copiesratio expressed in mass of carbon per amount of nifH gene copiesCalculatedtop minUnicellular cyanobacteria-B biological trait ratio expressed in mass of carbon per amount of nifH gene copiesCD132biomass as carbonTrichodesmium biomass as carbonM55/1bottom maxCTD SeabirdTemperatureDepth top/minCTD RosetteSeabirdRichelia biological trait ratio expressed in mass of carbon per amount of nifH gene copiesCalothrixSO187 2Unicellular cyanobacteria-B abundance expressed in number of nifH gene copiesTrichodesmiumEarth System ResearchMARine Ecosystem Model Intercomparison Project MAREMIPDiazotrophsLongitude of eventRichelia associated speciesSample methodCalothrix biological trait ratio expressed in mass of carbon per amount of nifH gene copiesIronBottle NiskinwaterIn situ pumpMARine Ecosystem Model Intercomparison Project (MAREMIP)Unicellular cyanobacteria-C abundance expressed in number of nifH gene copiesPhosphateWater sampleSample commentUnicellular cyanobacteria biomassUniform resource locator/link to source data filetotal biomass as carbonHeterocyst biomassUnicellular cyanobacteriaProteobacteriaDate/Time of eventMeteor 1986Richelia abundance expressed in number of nifH gene copiesUnicellular cyanobacteria CUnicellular cyanobacteria Bbiological traitSO187/2RicheliaUnicellular cyanobacteria ADEPTH waterbiomassTrichodesmium abundance expressed in number of nifH gene copiesMeteor (1986)BottleDepthEvent labelDate Time of eventTrichodesmium biological trait ratio expressed in mass of carbon per amount of nifH gene copiesUnicellular cyanobacteria-C biological trait ratio expressed in mass of carbon per amount of nifH gene copiesMeasured at sea surfaceCTDCalothrix associated speciesCharles DarwinSonneabundance expressed in number of nifH gene copiesM60 5Depth bottom/maxUnicellular cyanobacteria-A abundance expressed in number of nifH gene copiesassociated speciesProteobacteria abundance expressed in number of nifH gene copiesHeterocyst
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Global distributions of diazotrophs abundance and biomass - Depth integrated values computed from a collection of source datasets - Contribution to t…

2013

The MAREDAT atlas covers 11 types of plankton, ranging in size from bacteria to jellyfish. Together, these plankton groups determine the health and productivity of the global ocean and play a vital role in the global carbon cycle. Working within a uniform and consistent spatial and depth grid (map) of the global ocean, the researchers compiled thousands and tens of thousands of data points to identify regions of plankton abundance and scarcity as well as areas of data abundance and scarcity. At many of the grid points, the MAREDAT team accomplished the difficult conversion from abundance (numbers of organisms) to biomass (carbon mass of organisms). The MAREDAT atlas provides an unprecedente…

Go-Flo bottlesSalinityCAIBEX-IRV Kilo MoanaDiazotrophs total biomass as carbonUniform resource locator link to source data fileNitrateRichelia carbon per cellCTD/RosetteLatitude of eventNiskinRoger A RevelleTemperature waterCalculatedtop minbiomass as carbonTrichodesmium biomass as carbontotalbottom maxCTD Seabirdareal concentrationMultiple investigationsTemperatureDepth top/minRichelia abundance cellsCTD RosetteSeabirdCalothrixRoger A. RevelleTrichodesmiumTrichodesmium carbon per trichomeEarth System ResearchRichelia abundanceCAIBEX-IICalothrix abundanceMARine Ecosystem Model Intercomparison Project MAREMIPDiazotrophsLongitude of eventRichelia associated speciesSample methodIronChlorophyll total areal concentrationBottle NiskinwaterTrichodesmium abundance free trichomesMARine Ecosystem Model Intercomparison Project (MAREMIP)PhosphateSarmiento de GamboaSample commentCAIBOXUniform resource locator/link to source data filetotal biomass as carbonCalothrix carbon per cellHeterocyst biomassGo Flo bottlescoloniesDate/Time of eventChlorophyll totalTrichodesmium abundance totalRicheliaDEPTH waterTrichodesmium abundance coloniesMP-6biomassBottleDepthEvent labelDate Time of eventCAIBEX IIcarbon per cellMeasured at sea surfacefree trichomesMP-9CTDCalothrix abundance cellscarbon per trichomeTrichodesmium abundanceCalothrix associated speciesMP 9MP 6CAIBEX IcellsDepth bottom/maxassociated speciesHeterocyst
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