<?xml version="1.0" encoding="UTF-8"?><!--*** Generated from internal PANGAEA metadata schema by dif.xslt ***--><DIF xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.4.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/">
<Entry_ID>PANGAEA_996980</Entry_ID>
<Entry_Title>Concentrations of hydrolyzed monosaccharides from cold seep core MUC09-3 and reference core MUC08-4 at Astoria Canyon, Cascadia Margin, Oregon USA</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Stock, Lennart; Wegener, Gunter; Akeerath Mundanatt, Aman; Altun, Jenny; Dirksen, Lukas; Elvert, Marcus</Dataset_Creator>
<Dataset_Title>Concentrations of hydrolyzed monosaccharides from cold seep core MUC09-3 and reference core MUC08-4 at Astoria Canyon, Cascadia Margin, Oregon USA</Dataset_Title>
<Dataset_Release_Date>2026-09-02</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.996980</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Lennart</First_Name>
<Last_Name>Stock</Last_Name>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
</Discipline>
<Parameters>
<Detailed_Variable>Event label</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Identification</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Type</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>DEPTH, sediment/rock</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Fucose, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Rhamnose, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Galactosamine, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Arabinose, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Glucosamine, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Galactose, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Glucose, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Mannose, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Xylose, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Gluconic acid, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Galacturonic acid, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Glucuronic acid, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Mannuronic acid, per unit sediment dry mass</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>amino acids</Keyword>
<Keyword>ANME-2</Keyword>
<Keyword>AOM</Keyword>
<Keyword>AT50-14</Keyword>
<Keyword>AT50-14_MUC08-4</Keyword>
<Keyword>AT50-14_MUC09-3</Keyword>
<Keyword>Cold seeps</Keyword>
<Keyword>Disaccharides</Keyword>
<Keyword>H867</Keyword>
<Keyword>lipids</Keyword>
<Keyword>Monosaccharides</Keyword>
<Keyword>MultiCorer</Keyword>
<Keyword>SRB</Keyword>
<Keyword>Sucrose</Keyword>
<Keyword>TOC</Keyword>
<Keyword>Trehalose</Keyword>
<Sensor_Name>
<Long_Name>High performance anion exchange chromatography with pulsed amperometric detection (HPAEC-PAD), Dionex ICS-5000+ [PA10 analytical column]</Long_Name>
</Sensor_Name>
<Source_Name>
<Long_Name>Atlantis (1997)</Long_Name>
</Source_Name>
<Temporal_Coverage>
<Start_Date>2023-08-17</Start_Date>
<Stop_Date>2023-08-19</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>46.24074</Southernmost_Latitude>
<Northernmost_Latitude>46.24079</Northernmost_Latitude>
<Westernmost_Longitude>-124.625</Westernmost_Longitude>
<Easternmost_Longitude>-124.603</Easternmost_Longitude>
<Minimum_Depth>0.01 m (DEPTH, sediment/rock)</Minimum_Depth>
<Maximum_Depth>0.36 m (DEPTH, sediment/rock)</Maximum_Depth>
</Spatial_Coverage>
<Access_Constraints>unrestricted</Access_Constraints>
<Use_Constraints>CC-BY-4.0: Creative Commons Attribution 4.0 International</Use_Constraints>
<Data_Set_Language>English</Data_Set_Language>
<Data_Center>
<Data_Center_Name>
<Short_Name>PANGAEA</Short_Name>
<Long_Name>Data Publisher for Earth &amp; Environmental Science</Long_Name>
</Data_Center_Name>
<Data_Center_URL>https://www.pangaea.de/</Data_Center_URL>
<Personnel>
<Role>Data Center Contact</Role>
<First_Name>Michael</First_Name>
<Last_Name>Diepenbroek</Last_Name>
<Email>info@pangaea.de</Email>
<Contact_Address>
<Address>Leobener Str.</Address>
<City>Bremen</City>
<Province_or_State>Bremen</Province_or_State>
<Postal_Code>28359</Postal_Code>
<Country>Germany</Country>
</Contact_Address>
</Personnel>
</Data_Center>
<Distribution>
<Distribution_Media>online</Distribution_Media>
<Distribution_Size>197 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Stock, Lennart; Wegener, Gunter; Pohlman, John W; Lapham, Laura L; Lloyd, Karen; Williams, L; Torset, Stian; Lalk, Ellen; Hildebrand, Anna; Dirksen, Lukas; Akeerath Mundanatt, Aman; Wilson, Rachel; Seewald, Jeffrey S; Liebeke, Manuel; Elvert, Marcus (preprint): WITHDRAWN: Disaccharide production in marine cold seeps links dissolved organic carbon to anaerobic oxidation of methane. https://doi.org/10.21203/rs.3.rs-9427392/v2</Reference>
<Reference>H2 concentrations in highly active deep-sea methane seep sediments in Hydrate Ridge and Astoria Canyon (2026). European Nucleotide Archive (ENA), insdc:PRJEB97184</Reference>
<Reference>Lalk, Ellen; Pohlman, John W; Lapham, Laura L; Casso, Michael; Glenna, Madeline; Hildebrand, Anna; Lloyd, Karen; Ma, Kun; Seewald, Jeffrey S; Stock, Lennart; Strauss, Maureen A; Sylva, Sean P; Traver, Lily; Wilson, Rachel; Williams, L (2025): Porewater dissolved organic carbon and associated geochemical data for methane seeps in the Cascadia Margin: Astoria Canyon, Barkley Canyon, Hydrate Ridge, and Bullseye Vent [dataset]. Biological and Chemical Oceanography Data Management Office (BCO-DMO), https://doi.org/10.26008/1912/BCO-DMO.959765.1</Reference>
<Reference>Lapham, Laura L (2023): AT50-14, Investigating the source and flux of dissolved organic carbon released from methane seeps to the deep-ocean [dataset]. Rolling Deck to Repository (R2R) Program, https://doi.org/10.7284/910142</Reference>
<Summary>This dataset contains measurements of lipid biomarkers, disaccharides, monosaccharides, amino acids, and total organic carbon (TOC) in sediments and pore fluids collected from a cold seep at Astoria Canyon, Cascadia Margin, Oregon, USA. The data are part of a larger seep dataset comprising complementary geochemical and molecular measurements. Associated data are available through the Biological and Chemical Oceanography Data Management Office (BCO-DMO), including the dataset available under DOI 10.26008/1912/bco-dmo.959765.1. 16S rRNA gene amplicon sequencing data are available through the European Nucleotide Archive (ENA; PRJEB97184). The data presented here are archived in PANGAEA and comprise measurements of lipid biomarkers, carbohydrates, amino acids, and total organic carbon in the analyzed sediment and pore-fluid samples. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.996980"!</Summary>
<Related_URL>
<URL>https://doi.org/10.21203/rs.3.rs-9427392/v2</URL>
<Description>WITHDRAWN: Disaccharide production in marine cold seeps links dissolved organic carbon to anaerobic oxidation of methane</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.26008/1912/BCO-DMO.959765.1</URL>
<Description>Porewater dissolved organic carbon and associated geochemical data for methane seeps in the Cascadia Margin: Astoria Canyon, Barkley Canyon, Hydrate Ridge, and Bullseye Vent</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.7284/910142</URL>
<Description>AT50-14</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.7284/910142</URL>
<Description>AT50-14, Investigating the source and flux of dissolved organic carbon released from methane seeps to the deep-ocean</Description>
</Related_URL>
<Related_URL>
<URL>https://www.ebi.ac.uk/ena/browser/view/PRJEB97184</URL>
<Description>H2 concentrations in highly active deep-sea methane seep sediments in Hydrate Ridge and Astoria Canyon</Description>
</Related_URL>
<Related_URL>
<URL>https://www.whoi.edu/what-we-do/explore/ships/ships-atlantis/</URL>
<Description>Atlantis (1997)</Description>
</Related_URL>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2026-09-02</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-09-29</Last_DIF_Revision_Date>
</DIF>
