cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.873832
title: Measurements of microbial processes, dissolution, water and porewater chemistry during experiments on two coral reef sediments: Pigment concentration

description: In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation is 2017-03-22.
DOI: 10.1594/pangaea.963248
title: Coccolith species abundances in sediment core GeoB5546-2 off NW Africa for the past 45 ka

description: Coccolithophore assemblage data from sediment core GeoB5546-2 off the coast of NW Africa spanning the past 45 ka. The assemblage data were used to assess changes in biodiversity and assemblage composition during the past 24 ka, i.e., from the Last Glacial Maximum to the current warm period covering the last deglaciation.Samples were analysed at 4-10 cm intervals and were prepared using a combined dilution/filtering technique as described by Andruleit (1996, doi:10.2307/1485964). Between 50 and 100 mg of dry bulk sediment was brought into suspension using demineralized water buffered with ammonia (pH ~ 8.5-9). The suspension was ultrasonicated for 15 to 30 s, split (split factor = 100) using a rotary splitter and filtered onto polycarbonate membrane filters (0.4 µm pore size) using a vacuum pump. Samples were dried at 40°C for 24 h before ~1x1 cm filter aliquots were mounted on an aluminium stub that was prepared with electroconductive, self-adhesive, carbon-based discs (PLANO Leit tabs). The mounted samples were sputtered with gold/palladium in a Polaron SC7640 Sputter Coater.Coccolith counts (N) were made manually using a Zeiss DSM 940A scanning electron microscope at 3,000x and 5,000x magnification. Where possible, a minimum of 300 coccoliths were counted. In some samples fewer coccoliths were counted due to low abundances. Sample mass (m), magnification, split factor (k) and the area of the scanned transect (A) and the filter (F) are given for all samples to allow calculation of the concentration of coccoliths per gram of dry bulk sediment, which was calculated using: (F*N)/(k*A*m).Coccolithophore taxonomy follows Young et al. (2003, doi:10.58998/jnr2297). Species not reported in the data are assumed to be absent (that is, zero abundance). Two subspecies of Calcidiscus leptoporus were distinguished: Calcidiscus leptoporus subsp. quadriperforatus and Calcidiscus leptoporus subsp. leptoporus. Counts of unidentified and reworked specimens are given. In samples greater or equal to 4.53 m depth, Umbilicosphaera sibogae is included in the Umbilicosphaera foliosa column.The chronology of the time series presented here was revised using the same approach as in the PALMOD 130k marine palaeoclimate data synthesis V1.1 (Jonkers et al., 2020, doi:10.5194/essd-12-1053-2020). It is based on radiocarbon ages measured on the planktonic foraminifera G. bulloides and planktonic foraminifera δ18O isotope data (Holzwarth et al., 2010, doi:10.1016/j.palaeo.2010.03.013) calibrated to the NGRIP ice core δ18O record.
DOI: 10.1594/pangaea.732376
title: (Table 1) Age determination of sediment core 87-138
DOI: 10.1594/pangaea.914833
title: Chlorophyll, Pyropheophorbide and age of varved sediments from Lake Łazduny, NE Poland
DOI: 10.1594/pangaea.922213
title: Palynological abundance data from sediment core Latrobe-1
DOI: 10.1594/pangaea.881041
title: Organic geochemistry of IODP Site 346-U1425
DOI: 10.1594/pangaea.914806
title: Chlorophyll of varved sediments from Lake Łazduny, NE Poland
DOI: 10.1594/pangaea.774040
title: (Table T1) Carbon, carbonate, n-alkane and alkenone concentrations of ODP Site 202-1237

description: Sediment depth is given in mcd. #0 = below detection limit.
DOI: 10.1594/pangaea.746156
title: (Table 2) Hydrocarbon concentrations in ODP Hole 107-654A
DOI: 10.1594/pangaea.206130
title: Biomarkers of sediment core BOFS31/3M-1 (LSANOL)

description: Bristol Chemistry. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.789173
title: (Table 3) Carbonate, organic carbon, hydrogen and oxygen index of sediments at DSDP Sections 93-603B-34-1 to 93-603B-34-6 and 93-603B-35-1 to 93-603B-35-4
DOI: 10.1594/pangaea.56837
title: Rock eval analysis of sediment core GIK23071
DOI: 10.1594/pangaea.831999
title: Biopolymeric carbon (lipids, proteins and carbohydrates) and chlorophyll-a in surface sediments during cruise ECO2-7
DOI: 10.1594/pangaea.816771
title: Biochemistry measured on water bottle samples during Sir W. Laurier cruise LU94/9
DOI: 10.1594/pangaea.819029
title: (Table 1) Rock-Eval pyrolysis and total organic carbon at DSDP Hole 64-479
DOI: 10.1594/pangaea.183506
title: Geochemistry of sediment core IKU-6814/04-U-02
DOI: 10.1594/pangaea.806197
title: (Table IV) Microbial indicators in soil from a chronosequence near Lake Wellman

description: For the Isca soil above the IC layer, there was one value for culturable heterotrophs that was several orders of magnitude greater than the other values; on transformation, the mean was significantly lower than the DP horizon for this soil.
DOI: 10.1594/pangaea.726451
title: (Table 5) Organic carbon analysis of sediments from ODP Hole 113-697B
DOI: 10.1594/pangaea.968757
title: Precipitation data from Global Change Experimental Facility (GCEF) from 2022

description: Precipitation data are given in daily sums (mm/day). Blank fields are missing values. If there is an obvious lack of data during single rain events, the whole daily sum for this day is considered as missing value. Values are the sum including the irrigation and roofing treatment in the plots with future climate scenario.Ambient climate blocks are (mainblock) 1, 3, 5, 8, 10Future climate blocks are (mainblock) 2, 4, 6, 7, 9
DOI: 10.1594/pangaea.968759
title: Precipitation data from Global Change Experimental Facility (GCEF) from 2020

description: Precipitation data are given in daily sums (mm/day). Blank fields are missing values. If there is an obvious lack of data during single rain events, the whole daily sum for this day is considered as missing value. Values are the sum including the irrigation and roofing treatment in the plots with future climate scenario.Ambient climate blocks are (mainblock) 1, 3, 5, 8, 10Future climate blocks are (mainblock) 2, 4, 6, 7, 9
DOI: 10.1594/pangaea.968458
title: Precipitation data from Global Change Experimental Facility (GCEF) from 2023

description: Precipitation data are given in daily sums (mm/day). Blank fields are missing values. If there is an obvious lack of data during single rain events, the whole daily sum for this day is considered as missing value. Values are the sum including the irrigation and roofing treatment in the plots with future climate scenario.Ambient climate blocks are (mainblock) 1, 3, 5, 8, 10Future climate blocks are (mainblock) 2, 4, 6, 7, 9
DOI: 10.1594/pangaea.968758
title: Precipitation data from Global Change Experimental Facility (GCEF) from 2021

description: Precipitation data are given in daily sums (mm/day). Blank fields are missing values. If there is an obvious lack of data during single rain events, the whole daily sum for this day is considered as missing value. Values are the sum including the irrigation and roofing treatment in the plots with future climate scenario.Ambient climate blocks are (mainblock) 1, 3, 5, 8, 10Future climate blocks are (mainblock) 2, 4, 6, 7, 9
DOI: 10.1594/pangaea.968763
title: Precipitation data from Global Change Experimental Facility (GCEF) from 2019

description: Precipitation data are given in daily sums (mm/day). Blank fields are missing values. If there is an obvious lack of data during single rain events, the whole daily sum for this day is considered as missing value. Values are the sum including the irrigation and roofing treatment in the plots with future climate scenario.Ambient climate blocks are (mainblock) 1, 3, 5, 8, 10Future climate blocks are (mainblock) 2, 4, 6, 7, 9
DOI: 10.1594/pangaea.968769
title: Precipitation data from Global Change Experimental Facility (GCEF) from 2016

description: Precipitation data are given in daily sums (mm/day). Blank fields are missing values. If there is an obvious lack of data during single rain events, the whole daily sum for this day is considered as missing value. Values are the sum including the irrigation and roofing treatment in the plots with future climate scenario.Ambient climate blocks are (mainblock) 1, 3, 5, 8, 10Future climate blocks are (mainblock) 2, 4, 6, 7, 9
DOI: 10.1594/pangaea.929451
title: Concentrations and fluxes of the sea-ice biomarkers 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane (IP25) and highly branched isoprenoid triene (HBI III) from marine sediment core AMD14-204_CASQ

description: Concentrations of the sea-ice biomarker IP25 and highly branched isoprenoid triene (HBI III) (ng/g), total organic carbon content (TOC; %), IP25 and HBI III concentrations normalized to TOC (ng/gTOC), and fluxes of IP25 and HBI III (ng/unit surface area/yr) from the marine sediment core AMD14-204_CASQ that was retrieved from the West Greenland shelf, offshore Upernavik, and which spans the last ca. 9,000 years.
description: Fluxes are calculated as follows:Concentrations (ng/g) x sediment density derived from CT-Scan (HU) x accumulation rate (cm/yr).To avoid confusion, the fluxes are expressed as ng per unit of surface area per year in the paper.Trends can be compared, but flux values should not be directly compared with fluxes expressed with other units (e.g., ng/cm²/yr).
DOI: 10.1594/pangaea.838186
title: Pollen profile ROCKISLA, Russia

description: This dataset was archived on 2014-11-03 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.968772
title: Precipitation data from Global Change Experimental Facility (GCEF) from 2014

description: Precipitation data are given in daily sums (mm/day). Blank fields are missing values. If there is an obvious lack of data during single rain events, the whole daily sum for this day is considered as missing value. Values are the sum including the irrigation and roofing treatment in the plots with future climate scenario.Ambient climate blocks are (mainblock) 1, 3, 5, 8, 10Future climate blocks are (mainblock) 2, 4, 6, 7, 9
DOI: 10.1594/pangaea.968773
title: Precipitation data from Global Change Experimental Facility (GCEF) from 2015

description: Precipitation data are given in daily sums (mm/day). Blank fields are missing values. If there is an obvious lack of data during single rain events, the whole daily sum for this day is considered as missing value. Values are the sum including the irrigation and roofing treatment in the plots with future climate scenario.Ambient climate blocks are (mainblock) 1, 3, 5, 8, 10Future climate blocks are (mainblock) 2, 4, 6, 7, 9
DOI: 10.1594/pangaea.422529
title: Pigments of sediment core ARA-6/98-NCBRE

description: Knauer, Germany, with UV-Vis diode-array detector (Barspec Chrom-A-Scope) and fluorescence (Shimadzu RF-551) detector
DOI: 10.1594/pangaea.874931
title: (Table 9) Mineralogy, geochemistry and benthic foraminifera of sediment core POS175/1_1-5-1
DOI: 10.1594/pangaea.816772
title: Biochemistry measured on water bottle samples during PARIZEAU cruise PZ93/1
DOI: 10.1594/pangaea.58381
title: Biogeochemical parameters measured on sediment profile of multicorer SO129_MC-22
DOI: 10.1594/pangaea.58382
title: Biogeochemical parameters measured on sediment profile of multicorer SO118_MC-22
DOI: 10.1594/pangaea.923466
title: Sea surface temperature calculated from Alkenone UK'37 in sediment core 77KL from the Bering Sea (Tab. 4)
DOI: 10.1594/pangaea.907697
title: Pyrolysis data of South Atlantic source rocks from 20 DSDP-ODP sites: Insight on source-rock potential

description: This data set consists of analytical results from the HAWK Pyrolysis and TOC instrument for 161 bulk samples from Mesozoic to Cenozoic strata at 20 DSDP-ODP sites in the South Atlantic region, from the Weddell Sea in the south to the Demerara Rise in the north, and in the Mozambique Ridge. Based on a revised chronostratigraphic and paleoenvironment framework (Setoyama and Kanungo, submitted), our pyrolysis results, combined with data published by previous studies, allow us to identify seven Mesozoic source-rock intervals: two in the Southern South Atlantic (SA), one in the Central SA and four in the Equatorial SA. Furthermore, these data also provide an estimate of the source-rock potential and quality of the identified intervals, which are influenced by depositional environments. A significant portion of the pyrolysis data is affected by the mineral matrix effect (MME) that artificially lowers the estimated potential and quality of source rocks. Further analyses are therefore required to correct the MME and for the proper identification of organic matter to ensure the reliable determination of organofacies, thereby facilitating improved source rock system evaluation.
DOI: 10.1594/pangaea.922297
title: Highly branched isoprenoid hydrogen and carbon isotope data from lake sediment samples collected from the Adirondack region

description: Concentrations, hydrogen (δ2H) and carbon isotopes (δ13C) of highly branched isoprenoids (HBIs) from surface sediment samples from 12 lakes in the Adirondack region in New York. To understand the relationship between HBIs and source water, we measured the δ2H of lake water in addition to the δ2H of HBIs. HBIs were isolated using column chromatography, and were identified and quantified using an Agilent 7890A gas chromatograph (GC) coupled with an Agilent 5975C quadrupole mass selective detector (MSD). Compound specific carbon and hydrogen isotopes of the HBIs were measured using a Thermo Trace GC Ultra coupled to an Isolink pyrolysis reactor and interfaced to a Thermo Electron Delta V Advantage IRMS. Water isotopes were measured on either a Picarro L2130-i cavity ring-down spectrometer water isotope analyzer or GasBench-IRMS.
DOI: 10.1594/pangaea.611304
title: Analysis of organic material in sediment core Lz1005
DOI: 10.1594/pangaea.753823
title: (Table 4) Sediment chemistry at ODP Hole 112-688A
DOI: 10.1594/pangaea.58383
title: Biogeochemical parameters measured on sediment profile of multicorer SO118_MC-29
DOI: 10.1594/pangaea.854181
title: Bottom Water Samples from Meteor Cruise M103/1 in the Benguela Upwelling System off Namibia in December 2013 and January 2014
DOI: 10.1594/pangaea.758512
title: (Table 1) Carbon chemistry of ODP Hole 119-739C and 119-741A samples
DOI: 10.1594/pangaea.777293
title: (Table 1) Organic geochemistry of ODP Site 128-799A

description: Pyrolysis techniques were used to characterize the organic matter contained within the penetrated section and to assess the presence of heavy hydrocarbon shows. The Rock-Eval data indicate a change in organic hydrogen enrichment within the middle Miocene sequence. It appears that the level of organic enrichment may be controlled by sedimentation rate, while the organic hydrogen enrichment, as shown in the hydrogen index, may reflect differences in preservation potential. Higher sedimentation rates would result in higher organic carbon contents. Higher hydrogen index values would reflect higher degrees of organic preservation resulting from more restricted circulation.The entire penetrated section is thermally immature and has not entered into the main phase of thermal hydrocarbon generation. Neither the Rock-Eval nor the pyrolysis-gas chromatographic data indicate the presence of thermally mature, migrated, heavy hydrocarbons. This absence of mature, heavy hydrocarbons includes Cores 128-799B-65R and 128-799B-66R, which exhibited cut fluorescence onboard the ship. Therefore, the fluorescence is considered to have resulted from indigenous, thermally immature bitumens.
description: Supplement to: Katz, Barry J (1992): Pyrolytic assay of samples from Site 799. In: Pisciotto, KA; Ingle, JCJr.; von Breymann, MT; Barron, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 127/128(1), 623-633
DOI: 10.1594/pangaea.855499
title: Biomarker proxies on sediment core PS87/088-1

description: #-999 = trace amounts
DOI: 10.1594/pangaea.746799
title: (Table 3b) Methane concentrations, its oxidation rate, Eh, and organic carbon contents in bottom sediments of the Yenisey River estuary at Station DM49-4410b
DOI: 10.1594/pangaea.838177
title: Pollen profile NORTHTWI, United Kingdom

description: This dataset was archived on 2014-11-03 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.972052
title: Multibeam bathymetry processed data (NORBIT iWBMS entire dataset) of project KARST in the Bay of Antalya (Türkiye)

description: Processed shallow water multibeam bathymetry and backscatter data from the NORBIT iWBMS. Data were acquired between the 6.3.2023 – 18.3.2023 during a cruise on the vessel Mustafa Reis Finike in the Bay of Antalya. The data was generally acquired during calm seas in water depths between 5 and ~50 m. The dataset extends over the shallow regions from the Konyaalti beach to the Düden Falls. The MBES was mounted on the starboard side of the vessel using an adjustable pole and custom-made metal bracket. Our measurements involved an RTK GNSS reference grid operated by the Turkish national GNSS network. The resulting accuracy in position and height was around 5 cm, although the RTK connection was disrupted occasionally. The echosounder was operated at 400 kHz in chirp mode with a bandwidth of 80 kHz, giving a theoretical range resolution of 9 mm. We used a swath width of 150°, separated into 512 individual beams. 18 vertical CTD casts were collected in different regions of the bay to correct for changes in the sound velocity profile.
description: These data should not be used for navigational purposes. This dataset can contain errors and cannot substitute the official government charts
DOI: 10.1594/pangaea.720995
title: Pigments of sediment core 13200-053, subcore 1
DOI: 10.1594/pangaea.956023
title: Seawater carbonate chemistry and abundance of cyanobacterial, micro-algal 16S rRNAA

description: The geological storage of carbon dioxide (CO2) is expected to be an important component of future global carbon emission mitigation, but there is a need to understand the impacts of a CO2 leak on the marine environment and to develop monitoring protocols for leakage detection. In the present study, sediment cores were exposed to CO2-acidified seawater at one of five pH levels (8.0, 7.5, 7.0, 6.5 and 6.0) for 10 weeks. A bloom of Spirulina sp. and diatoms appeared on sediment surface exposed to pH 7.0 and 7.5 seawater. Quantitative PCR measurements of the abundance of 16S rRNA also indicated an increase to the abundance of microbial 16S rRNA within the pH 7.0 and 7.5 treatments after 10 weeks incubation. More detailed analysis of the microbial communities from the pH 7.0, 7.5 and 8.0 treatments confirmed an increase in the relative abundance of Spirulina sp. and Navicula sp. sequences, with changes to the relative abundance of major archaeal and bacterial groups also detected within the pH 7.0 treatment. A decreased flux of silicate from the sediment at this pH was also detected. Monitoring for blooms of microphytobenthos may prove useful as an indicator of CO2 leakage within coastal areas.
description: In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2023-02-20.
DOI: 10.1594/pangaea.733940
title: Seawater carbonate chemistry, pigments and biological processes during experiments with coralline alga Corallina sessilis

description: Previous studies have shown that increasing atmospheric CO2 concentrations affect calcification in some planktonic and macroalgal calcifiers due to the changed carbonate chemistry of seawater. However, little is known regarding how calcifying algae respond to solar UV radiation (UVR, UVA+UVB, 280-400 nm). UVR may act synergistically, antagonistically or independently with ocean acidification (high CO2/low pH of seawater) to affect their calcification processes. We cultured the articulated coralline alga Corallina sessilis Yendo at 380 ppmv (low) and 1000 ppmv (high) CO2 levels while exposing the alga to solar radiation treatments with or without UVR. The presence of UVR inhibited the growth, photosynthetic O2evolution and calcification rates by13%, 6% and 3% in the low and by 47%, 20% and 8% in the high CO2 concentrations, respectively, reflecting a synergistic effect of CO2 enrichment with UVR. UVR induced significant decline of pH in the CO2-enriched cultures. The contents of key photosynthetic pigments, chlorophyll a and phycobiliproteins decreased, while UV-absorptivity increased under the highpCO2/low pH condition. Nevertheless, UV-induced inhibition of photosynthesis increased when the ratio of particulate inorganic carbon/particulate organic carbon decreased under the influence of CO2-acidified seawater, suggesting that the calcified layer played a UV-protective role. Both UVA and UVB negatively impacted photosynthesis and calcification, but the inhibition caused by UVB was about 2.5-2.6 times that caused by UVA. The results imply that coralline algae suffer from more damage caused by UVB as they calcify less and less with progressing ocean acidification.
description: In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI).
description: Supplement to: Gao, Kunshan; Zheng, Y (2010): Combined effects of ocean acidification and solar UV radiation on photosynthesis, growth, pigmentation and calcification of the coralline alga Corallina sessilis (Rhodophyta). Global Change Biology, 16(8), 2388-2398
DOI: 10.1594/pangaea.810174
title: (Table 2) Carbon, and pyrolysis at DSDP Hole 75-530A Cores 50-105