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  • 1
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    Unknown
    Reconstructed pCO2 data from tree ring cellulose δ¹³C during 1902-2005 at 10 sites in the Tropics and Northern Subtropics
    PANGAEA
    In:  Supplement to: Bose, Trina; Chakraborty, Supriyo; Borgaonkar, Hemant; Sengupta, Saikat (2014): Estimation of past atmospheric carbon dioxide levels using tree-ring d13C. Current Science, 107(6), 971-982
    Details
    Publication Date: 2023-05-12
    Description: This is the reconstructed pCO2 data from Tree ring cellulose d13C data with estimation errors for 10 sites (location given below) by a geochemical model as given in the publication by Trina Bose, Supriyo Chakraborty, Hemant Borgaonkar, Saikat Sengupta. This data was generated in Stable Isotope Laboratory, Indian Institute of Tropical Meteorology, Pune - 411008, India
    Keywords: BAGR; Bagrot Valley, Pakistan; Blanco West, California; BOIB; Boibar Valley, Pakistan; BWCA; Carbon dioxide, partial pressure; Carbon dioxide, partial pressure, model estimation error; CASW; Cavergno, Switzerland; DATE/TIME; Event label; Kanasar, Uttaranchal, India; KAUT; KOHP; Kothi, Himachal Pradesh, India; Latitude of event; Longitude of event; LOSW; Lötschental, Switzerland; Moreju River Valley, Russia; MRUS; PMPE; Puerto Maldonado, Peru; Reconstructed using tree ring cellulose d13C data; Vigera, Switzerland; VISW
    Type: Dataset
    Format: text/tab-separated-values, 1886 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Shoreline movement of reef island Langkai, Spermonde Archipelago, Indonesia from 1999-2023 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-06
    Description: The shoreline analysis of the reef island Langkai, SW Sulawesi, Indonesia is based on satellite images from 1999-2023. Transects (n=306) were used for shoreline analysis. Net shoreline movement and end point rate at each transect were calculated with the Digital Shoreline Analysis Tool (Thieler et al., 2009) in ArcGIS.
    Keywords: Carbonate Sedimentology; Change rate; Digital Shoreline Analysis System extension for ESRI ArcGIS, Thieler et al, 2009; Facies; Grain Size; Holocene; Langkai_sat; LATITUDE; Latitude 2; LONGITUDE; Longitude 2; Net shoreline movement; radiocarbon age; Satellite imagery; SATI; Southeast Asia; Spermonde Archipelago; Transect number
    Type: Dataset
    Format: text/tab-separated-values, 1530 data points
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    DATA PANGAEA
  • 3
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    Raw grain sizes of sediments from the reef island Langkai, Spermonde Archipelago, Indonesia (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-06
    Description: The data set includes grain size distribution of sediments from the reef island Langkai, SW Sulawesi, Indonesia. The data was collected in order to reconstruct the Holocene and modern (sediment) dynamics over the past ca 6,000 years. Sediment samples were obtained from sediment cores taken by percussion drilling and hand-held (Auger) coring in May 2016 and July 2021. Laboratory analysis of the sediments and shoreline analysis were carried out between 2021 and 2023. The grain size distribution was determined by dry-sieving of the bulk sample into fractions following Wentworth (1922).
    Keywords: AUG; Auger; Calculated average/mean values; Carbonate Sedimentology; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Dried and weighted; Dry sieving; Event label; Facies; Grain Size; Holocene; Langkai_1; Langkai_2; Langkai_3; Langkai_4; Langkai_5; Langkai_Auger_1; Langkai_Auger_10; Langkai_Auger_11; Langkai_Auger_12; Langkai_Auger_13; Langkai_Auger_14; Langkai_Auger_15; Langkai_Auger_16; Langkai_Auger_17; Langkai_Auger_18; Langkai_Auger_19; Langkai_Auger_2; Langkai_Auger_20; Langkai_Auger_21; Langkai_Auger_22; Langkai_Auger_23; Langkai_Auger_24; Langkai_Auger_25; Langkai_Auger_26; Langkai_Auger_27; Langkai_Auger_28; Langkai_Auger_29; Langkai_Auger_3; Langkai_Auger_30; Langkai_Auger_31; Langkai_Auger_4; Langkai_Auger_5; Langkai_Auger_6; Langkai_Auger_7; Langkai_Auger_8; Langkai_Auger_9; PCOR; Percussion corer; radiocarbon age; Sample ID; Sediment, dry mass; Size fraction 〈 0.063 mm, mud, silt+clay; Size fraction 0.125-0.063 mm; Size fraction 0.250-0.125 mm; Size fraction 0.500-0.250 mm; Size fraction 1.000-0.500 mm, 0.0-1.0 phi, coarse sand; Size fraction 16-8 mm, medium gravel; Size fraction 2.000-1.000 mm, (-1.0)-0.0 phi, very coarse sand; Size fraction 32-16 mm, coarse gravel, pebble; Size fraction 4.0-2.0 mm, very fine gravel, granule; Size fraction 8.0-4.0 mm, fine gravel; Southeast Asia; Spermonde Archipelago
    Type: Dataset
    Format: text/tab-separated-values, 742 data points
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    DATA PANGAEA
  • 4
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    Skeletal component counts of sediments from the reef island Langkai, Spermonde Archipelago, Indonesia (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-06
    Description: The data set includes facies compositions of sediments from the reef island Langkai, SW Sulawesi, Indonesia. The data was collected in order to reconstruct the Holocene and modern (sediment) dynamics over the past ca 6,000 years. Sediment samples were obtained from sediment cores taken by percussion drilling and hand-held (Auger) coring in May 2016 and July 2021. Laboratory analysis of the sediments and shoreline analysis were carried out between 2021 and 2023. The skeletal components of the grain size fractions 〉2 mm, 2-1 mm, 1-0.5 mm and 0.5-0.25 mm were analyzed under a digital microscope by point counting. A total of n=100 skeletal components were identified from each fraction.
    Keywords: Aggregates; AUG; Auger; Bioclasts; Bivalvia; Bryozoa; Calculated average/mean values; Carbonate Sedimentology; Coral; Counting, microscope; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Echinodermata; Event label; Facies; Foraminifera; Gastropoda; Grain Size; Halimeda; Holocene; Langkai_1; Langkai_2; Langkai_3; Langkai_4; Langkai_5; Langkai_Auger_1; Langkai_Auger_10; Langkai_Auger_11; Langkai_Auger_12; Langkai_Auger_13; Langkai_Auger_14; Langkai_Auger_15; Langkai_Auger_16; Langkai_Auger_17; Langkai_Auger_18; Langkai_Auger_19; Langkai_Auger_2; Langkai_Auger_20; Langkai_Auger_21; Langkai_Auger_22; Langkai_Auger_23; Langkai_Auger_24; Langkai_Auger_25; Langkai_Auger_26; Langkai_Auger_27; Langkai_Auger_28; Langkai_Auger_29; Langkai_Auger_3; Langkai_Auger_30; Langkai_Auger_31; Langkai_Auger_4; Langkai_Auger_5; Langkai_Auger_6; Langkai_Auger_7; Langkai_Auger_8; Langkai_Auger_9; PCOR; Percussion corer; radiocarbon age; Rhodophyta; Sample ID; Serpulidae; Size fraction; Southeast Asia; Spermonde Archipelago
    Type: Dataset
    Format: text/tab-separated-values, 3180 data points
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    DATA PANGAEA
  • 5
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    Relative skeletal composition in sediments from the reef island Langkai, Spermonde Archipelago, Indonesia (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-06
    Description: The data set includes relative facies composition in sediments from the reef island Langkai, SW Sulawesi, Indonesia. The data was collected in order to reconstruct the Holocene and modern (sediment) dynamics over the past ca 6,000 years. Sediment samples were obtained from sediment cores taken by percussion drilling and hand-held (Auger) coring in May 2016 and July 2021. Laboratory analysis of the sediments and shoreline analysis were carried out between 2021 and 2023. The skeletal components of the grain size fractions 〉2 mm, 2-1 mm, 1-0.5 mm and 0.5-0.25 mm were analyzed under a digital microscope by point counting. A total of n=100 skeletal components were identified from each fraction. These results were then used to calculate the relative proportions in each sample.
    Keywords: AUG; Auger; Bivalvia; Bryozoa; Calculated; Calculated average/mean values; Carbonate Sedimentology; Components, other; Coral; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Echinodermata; Event label; Facies; Foraminifera; Gastropoda; Grain Size; Halimeda; Holocene; Langkai_1; Langkai_2; Langkai_3; Langkai_4; Langkai_5; Langkai_Auger_1; Langkai_Auger_10; Langkai_Auger_11; Langkai_Auger_12; Langkai_Auger_13; Langkai_Auger_14; Langkai_Auger_15; Langkai_Auger_16; Langkai_Auger_17; Langkai_Auger_18; Langkai_Auger_19; Langkai_Auger_2; Langkai_Auger_20; Langkai_Auger_21; Langkai_Auger_22; Langkai_Auger_23; Langkai_Auger_24; Langkai_Auger_25; Langkai_Auger_26; Langkai_Auger_27; Langkai_Auger_28; Langkai_Auger_29; Langkai_Auger_3; Langkai_Auger_30; Langkai_Auger_31; Langkai_Auger_4; Langkai_Auger_5; Langkai_Auger_6; Langkai_Auger_7; Langkai_Auger_8; Langkai_Auger_9; PCOR; Percussion corer; radiocarbon age; Rhodophyta; Sample ID; Serpulidae; Southeast Asia; Spermonde Archipelago
    Type: Dataset
    Format: text/tab-separated-values, 689 data points
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    DATA PANGAEA
  • 6
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    Island surface area of Langkai, Spermonde Archipelago, Indonesia from 1999-2023 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-06
    Description: The shoreline analysis of the reef island Langkai, SW Sulawesi, Indonesia is based on 11 satellite images from 1999-2023. Island surface area was retrieved with the Digital Shoreline Analysis Tool (Thieler et al., 2009) in ArcGIS.
    Keywords: Accessibility, description; Area in hectare; Carbonate Sedimentology; Data source; DATE/TIME; Digital Shoreline Analysis System extension for ESRI ArcGIS, Thieler et al, 2009; Facies; Grain Size; Holocene; Image number/name; Langkai_sat; radiocarbon age; Reference/source; Satellite imagery; SATI; Southeast Asia; Spermonde Archipelago
    Type: Dataset
    Format: text/tab-separated-values, 55 data points
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    DATA PANGAEA
  • 7
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    Sedimentological and remote sensing data from the reef island Langkai, Spermonde Archipelago, Indonesia (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-06
    Description: The data set includes sedimentological data (grain size distribution, facies compositions & radiocarbon ages) and satellite imagery data (shoreline analysis) of the reef island Langkai, SW Sulawesi, Indonesia. The data was collected in order to reconstruct the Holocene and modern (sediment) dynamics over the past ca 6,000 years. Sediment samples were obtained from sediment cores taken by percussion drilling and hand-held (Auger) coring in May 2016 and July 2021. Laboratory analysis of the sediments and shoreline analysis were carried out between 2021 and 2023. The grain size distribution was determined by dry-sieving of the bulk sample into fractions following Wentworth (1922). The subsequent analysis of grain size statistics was done in GRADISTAT v9.1 (Blott & Pye, 2001). The skeletal components of the grain size fractions 〉2 mm, 2-1 mm, 1-0.5 mm and 0.5-0.25 mm were analyzed under a digital microscope by point counting. A total of n=100 skeletal components were identified from each fraction. These results were then used to calculate the relative proportions in each sample. A total of 20 radiocarbon ages from AMS dating were calibrated using OxCal online v4.4 (Bronk Ramsey, 2009), with the MARINE20 curve (Heaton et al., 2020) and a regional reservoir correction of deltaR= 0+-0 as suggested by Southon et al. (2002). The shoreline analysis is based on satellite image data (1999-2023; acquired from multiple sources, see data set for detailed description) and was analyzed with the Digital Shoreline Analysis Tool (Thieler et al., 2009) in ArcGIS.
    Keywords: Carbonate Sedimentology; Facies; Grain Size; Holocene; radiocarbon age; Southeast Asia; Spermonde Archipelago
    Type: Dataset
    Format: application/zip, 7 datasets
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    DATA PANGAEA
  • 8
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    Radiocarbon (C14) measurements of sediments from the reef island Langkai, Spermonde Archipelago, Indonesia (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-06
    Description: The data set includes radiocarbon ages of sediments from the reef island Langkai, SW Sulawesi, Indonesia. The data was collected in order to reconstruct the Holocene and modern (sediment) dynamics over the past ca 6,000 years. Sediment samples were obtained from sediment cores taken by percussion drilling and hand-held (Auger) coring in May 2016 and July 2021. Laboratory analysis of the sediments and shoreline analysis were carried out between 2021 and 2023. In bulk sediment samples, a total of 20 radiocarbon ages from AMS dating were calibrated using OxCal online v4.4 (Bronk Ramsey, 2009), with the MARINE20 curve (Heaton et al., 2020) and a regional reservoir correction of deltaR= 0+-0 as suggested by Southon et al. (2002).
    Keywords: Age, 14C AMS; Age, 14C calibrated, MARINE20 (Heaton et al., 2020); Age, dated; Age, dated, uncertainty; AUG; Auger; Calculated average/mean values; Calendar age, maximum/old; Calendar age, mean; Calendar age, median; Calendar age, minimum/young; Calendar age, standard deviation; Carbonate Sedimentology; Confidence level; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Event label; Facies; Grain Size; Holocene; Langkai_1; Langkai_2; Langkai_3; Langkai_4; Langkai_5; Langkai_Auger_1; Langkai_Auger_10; Langkai_Auger_15; Langkai_Auger_19; Langkai_Auger_22; Langkai_Auger_26; Langkai_Auger_3; Langkai_Auger_31; Langkai_Auger_6; Langkai_Auger_8; PCOR; Percussion corer; radiocarbon age; Sample ID; Southeast Asia; Spermonde Archipelago
    Type: Dataset
    Format: text/tab-separated-values, 220 data points
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    DATA PANGAEA
  • 9
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    Grain size statistics of sediments from the reef island Langkai, Spermonde Archipelago, Indonesia (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-06
    Description: The data set includes grain size statisticsof sediments from the reef island Langkai, SW Sulawesi, Indonesia. The data was collected in order to reconstruct the Holocene and modern (sediment) dynamics over the past ca 6,000 years. Sediment samples were obtained from sediment cores taken by percussion drilling and hand-held (Auger) coring in May 2016 and July 2021. Laboratory analysis of the sediments and shoreline analysis were carried out between 2021 and 2023. The grain size distribution was determined by dry-sieving of the bulk sample into fractions following Wentworth (1922). The subsequent analysis of grain size statistics was done in GRADISTAT v9.1 (Blott & Pye, 2001).
    Keywords: Arithmetic method of moments; AUG; Auger; Calculated; Calculated average/mean values; Carbonate Sedimentology; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Event label; Facies; Geometric method of moments; Grain quartile 75%/Grain quartile 25%; Grain Size; Grain size, distribution, interquartile range; Grain size, distribution interquartile range; Grain size, distribution spread; Grain size, mean; Grain size description; Grain size parameters (Folk and Ward, 1957); Gravel; Holocene; Kurtosis; Kurtosis description; Langkai_1; Langkai_2; Langkai_3; Langkai_4; Langkai_5; Langkai_Auger_1; Langkai_Auger_10; Langkai_Auger_11; Langkai_Auger_12; Langkai_Auger_13; Langkai_Auger_14; Langkai_Auger_15; Langkai_Auger_16; Langkai_Auger_17; Langkai_Auger_18; Langkai_Auger_19; Langkai_Auger_2; Langkai_Auger_20; Langkai_Auger_21; Langkai_Auger_22; Langkai_Auger_23; Langkai_Auger_24; Langkai_Auger_25; Langkai_Auger_26; Langkai_Auger_27; Langkai_Auger_28; Langkai_Auger_29; Langkai_Auger_3; Langkai_Auger_30; Langkai_Auger_31; Langkai_Auger_4; Langkai_Auger_5; Langkai_Auger_6; Langkai_Auger_7; Langkai_Auger_8; Langkai_Auger_9; Logarithmic method of moments; Median, grain size; Mode, grain size; Mud; PCOR; Percentile 10; Percentile 90; Percussion corer; radiocarbon age; Ratio to 10 percentile; Sample ID; Sample type; Sand; Sediment type; Sieving, error relative; Size fraction 〈 0.002 mm, clay; Size fraction 0.004-0.002 mm, 8.0-9.0 phi, very fine silt; Size fraction 0.008-0.004 mm, 7.0-8.0 phi, fine silt; Size fraction 0.016-0.008 mm, 6.0-7.0 phi, medium silt; Size fraction 0.032-0.016 mm, 5.0-6.0 phi, coarse silt; Size fraction 0.063-0.032 mm, 4.0-5.0 phi, very coarse silt; Size fraction 0.125-0.063 mm, 3.0-4.0 phi, very fine sand; Size fraction 0.250-0.125 mm, 2.0-3.0 phi, fine sand; Size fraction 0.500-0.250 mm, 1.0-2.0 phi, medium sand; Size fraction 1.000-0.500 mm, 0.0-1.0 phi, coarse sand; Size fraction 16-8 mm, medium gravel; Size fraction 2.000-1.000 mm, (-1.0)-0.0 phi, very coarse sand; Size fraction 32-16 mm, coarse gravel, pebble; Size fraction 4.0-2.0 mm, very fine gravel, granule; Size fraction 64-32 mm, very coarse gravel, pebble; Size fraction 8.0-4.0 mm, fine gravel; Skewness; Skewness description; Sorting; Sorting description; Southeast Asia; Spermonde Archipelago; Statistical analysis GRADISTAT package (Blott and Pye, 2001); Texture
    Type: Dataset
    Format: text/tab-separated-values, 3524 data points
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    DATA PANGAEA
  • 10
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    Tracing the oxygen isotope composition of the upper Earth's atmosphere using cosmic spherules (2018)
    Details
    Publication Date: 2021-03-29
    Description: Molten I-type cosmic spherules formed by heating, oxidation and melting of extraterrestrial Fe,Ni metal alloys. The entire oxygen in these spherules sources from the atmosphere. Therefore, I-type cosmic spherules are suitable tracers for the isotopic composition of the upper atmosphere at altitudes between 80 and 115 km. Here we present data on I-type cosmic spherules collected in Antarctica. Their composition is compared with the composition of tropospheric O2. Our data suggest that the Earth's atmospheric O2 is isotopically homogenous up to the thermosphere. This makes fossil I-type micrometeorites ideal proxies for ancient atmospheric CO2 levels.
    Description: Open-Access-Publikationsfonds 2017
    Keywords: oxygen isotope; upper Earth’s atmosphere; cosmic spherules ; 551
    Language: English , English
    Type: article , publishedVersion
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    CITATION GEO-LEO
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