<?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_995171</Entry_ID>
<Entry_Title>GDGT concentrations in ELSA stack samples of the Eifel volcanic field, Germany</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Zander, Paul D; Böhl, Daniel; Sirocko, Frank; Auderset, Alexandra; Martínez-García, Alfredo; Haug, Gerald H</Dataset_Creator>
<Dataset_Title>GDGT concentrations in ELSA stack samples of the Eifel volcanic field, Germany</Dataset_Title>
<Dataset_Release_Date>2026-05-28</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.995171</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Paul D</First_Name>
<Last_Name>Zander</Last_Name>
<Email>paul.zander@mpic.de</Email>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
</Discipline>
<Parameters>
<Detailed_Variable>Event label</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Sample ID</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>DEPTH, sediment/rock</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Age</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Longitude of event</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Latitude of event</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Elevation of event</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Sample mass</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Isoprenoid acyclic glycerol dialkyl glycerol tetraether</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Isoprenoid monocyclic glycerol dialkyl glycerol tetraether</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Isoprenoid dicyclic glycerol dialkyl glycerol tetraether</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Isoprenoid tricyclic glycerol dialkyl glycerol tetraether</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Crenarchaeol</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Crenarchaeol isomer</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIIa</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIIa'</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIIa''</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIIb</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIIb'</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIIc</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIIc'</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIa</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIa'</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIb</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIb'</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIc</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, IIc'</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, Ia</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, Ib</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Branched glycerol dialkyl glycerol tetraether, Ic</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Temperature, air, mean of months, above freezing</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Comment</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>AU3</Keyword>
<Keyword>AU4</Keyword>
<Keyword>Cable Core Drilling</Keyword>
<Keyword>ELSA_AU3</Keyword>
<Keyword>ELSA_AU4</Keyword>
<Keyword>ELSA_HM3</Keyword>
<Keyword>ELSA_HM4</Keyword>
<Keyword>ELSA_SMf1</Keyword>
<Keyword>ELSA_SMf2</Keyword>
<Keyword>Europe</Keyword>
<Keyword>Freeze corer</Keyword>
<Keyword>GDGTs</Keyword>
<Keyword>HM3</Keyword>
<Keyword>HM4</Keyword>
<Keyword>Lacustrine-palustrine sediment</Keyword>
<Keyword>Paleoclimate</Keyword>
<Keyword>Piston corer, UWITEC</Keyword>
<Keyword>SMf1</Keyword>
<Keyword>SMf2</Keyword>
<Sensor_Name>
<Long_Name>High Performance Liquid Chromatography (HPLC)</Long_Name>
</Sensor_Name>
<Sensor_Name>
<Long_Name>BayMBT - Bayesian calibration for the branched GDGT MBT5Me proxy</Long_Name>
</Sensor_Name>
<Sensor_Name>
<Long_Name>Calculated according to Raberg et al. (2021)</Long_Name>
</Sensor_Name>
<Temporal_Coverage>
<Start_Date>2017-09-01</Start_Date>
<Stop_Date>2017-09-30</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>50.1193434</Southernmost_Latitude>
<Northernmost_Latitude>50.28246449</Northernmost_Latitude>
<Westernmost_Longitude>6.594933478</Westernmost_Longitude>
<Easternmost_Longitude>6.879163411</Easternmost_Longitude>
<Minimum_Depth>0.15 m (DEPTH, sediment/rock)</Minimum_Depth>
<Maximum_Depth>101.45 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>9496 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Zander, Paul D; Böhl, Daniel; Sirocko, Frank; Auderset, Alexandra; Haug, Gerald H; Martínez-García, Alfredo (2024): Reconstruction of warm-season temperatures in central Europe during the past 60 000 years from lacustrine branched glycerol dialkyl glycerol tetraethers (brGDGTs). Climate of the Past, 20(4), 841-864, https://doi.org/10.5194/cp-20-841-2024</Reference>
<Reference>Zander, Paul D; Böhl, Daniel; Sirocko, Frank; Auderset, Alexandra; Martínez-García, Alfredo; Haug, Gerald H (2024): GDGTs in modern soils and lake sediments, Eifel volcanic field, Germany [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.964275</Reference>
<Reference>Martínez-Sosa, Pablo; Tierney, Jessica E; Stefanescu, Ioana C; Dearing Crampton-Flood, Emily; Shuman, Bryan N; Routson, Cody (2021): A global Bayesian temperature calibration for lacustrine brGDGTs. Geochimica et Cosmochimica Acta, 305, 87-105, https://doi.org/10.1016/j.gca.2021.04.038</Reference>
<Reference>Raberg, Jonathan H; Harning, David J; Crump, Sarah E; de Wet, Gregory A; Blumm, Aria; Kopf, Sebastian; Geirsdóttir, Áslaug; Miller, Gifford H; Sepúlveda, Julio (2021): Revised fractional abundances and warm-season temperatures substantially improve brGDGT calibrations in lake sediments. Biogeosciences, 18(12), 3579-3603, https://doi.org/10.5194/bg-18-3579-2021</Reference>
<Reference>Sirocko, Frank; Albert, Johannes; Britzius, Sarah; Dreher, Frank; Martínez-García, Alfredo; Dosseto, Anthony; Burger, Joachim; Terberger, Thomas; Haug, Gerald H (2022): Thresholds for the presence of glacial megafauna in central Europe during the last 60,000 years. Scientific Reports, 12(1), 20055, https://doi.org/10.1038/s41598-022-22464-x</Reference>
<Reference>Sirocko, Frank; Martínez-García, Alfredo; Mudelsee, Manfred; Albert, Johannes; Britzius, Sarah; Christl, Marcus; Diehl, Daniel; Diensberg, Benedikt; Friedrich, Ronny; Fuhrmann, Florian Max Werner; Muscheler, Raimund; Hamann, Yvonne; Schneider, Ralph R; Schwibus, Klaus; Haug, Gerald H (2021): Muted multidecadal climate variability in central Europe during cold stadial periods. Nature Geoscience, 14(9), 651-658, https://doi.org/10.1038/s41561-021-00786-1</Reference>
<Summary>Isoprenoid and branched GDGTs were measured in soils and lake sediment samples from the Eifel Volcanic field. The modern samples were used to understand sources of GDGTs in sediments, while sediment core samples from Schalkenmehrener Maar, Holzmaar, and Auel Maar were used to reconstruct temperatures during the past 60,000 years. Age model information and additional proxy data from the ELSA-20 stack are found in Sirocko et al., 2021 and Sirocko et al., 2022 ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995171"! ** This is a revised version of doi:10.1594/PANGAEA.964277. Temperature reconstruction was removed for 3 data points that were not included in the final published reconstruction. 
Empty cells correspond to measurements of GDGTs below the detection limit.</Summary>
<Related_URL>
<URL>https://doi.org/10.1016/j.gca.2021.04.038</URL>
<Description>A global Bayesian temperature calibration for lacustrine brGDGTs</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.1038/s41561-021-00786-1</URL>
<Description>Muted multidecadal climate variability in central Europe during cold stadial periods</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.1038/s41598-022-22464-x</URL>
<Description>Thresholds for the presence of glacial megafauna in central Europe during the last 60,000 years</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.5194/bg-18-3579-2021</URL>
<Description>Calculated according to Raberg et al. (2021)</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.5194/bg-18-3579-2021</URL>
<Description>Revised fractional abundances and warm-season temperatures substantially improve brGDGT calibrations in lake sediments</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.5194/cp-20-841-2024</URL>
<Description>Reconstruction of warm-season temperatures in central Europe during the past 60 000 years from lacustrine branched glycerol dialkyl glycerol tetraethers (brGDGTs)</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.pangaea.de/10.1594/PANGAEA.964275</URL>
<Description>GDGTs in modern soils and lake sediments, Eifel volcanic field, Germany</Description>
</Related_URL>
<Related_URL>
<URL>https://en.wikipedia.org/wiki/High-performance_liquid_chromatography</URL>
<Description>High Performance Liquid Chromatography (HPLC)</Description>
</Related_URL>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2026-05-28</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-05-29</Last_DIF_Revision_Date>
</DIF>
