Diefendorf, Aaron F; Dietrich, Watts; Naake, Hans H; Lowell, Thomas V; Corcoran, Megan C: Highly branched isoprenoids in lake sediments [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.979555 (dataset in review), In: Diefendorf, AF et al.: Diatom-derived highly branched isoprenoids in lake waters and sediments [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.979496 (dataset in review)
Abstract:
Diatom-derived highly branched isoprenoids (HBIs) are found extensively in marine sediments, but are observed in a limited number of lake sediments. To expand on this record, between 2022 and 2024, we collected lake surface sediment samples from 50 lakes in the United States of America from the Midwest and Northeast. Studied lakes capture a range in climate, water chemistry (e.g., pH, salinity, alkalinity), size, and trophic states. Lakes also vary in their diatom species compositions. Surface sediment samples were collected using a gravity corer or a Bolivia-type square-rod piston corer deployed from a boat. Lake sediments were extracted and analyzed for their HBI compounds and concentrations by gas chromatography mass spectrometry. Lake surface sediments were analyzed for their carbon and nitrogen concentrations and stable isotopes.
Keyword(s):
Related to:
Diefendorf, Aaron F; Dietrich, Watts; Naake, Hans H; Corcoran, Megan C; Kmetz, Andrew J; Lowell, Thomas V; Schenk, Michael D; Wiles, Gregory; Wilson, Mark (submitted): Diatom-derived highly branched isoprenoids are diverse and widespread in lakes. Organic Geochemistry
Funding:
American Chemical Society (ACS), grant/award no. PRF-60163-ND2: Environmental and Thermal Controls on Diatom Highly Branched Isoprenoids for Oil-Source Rock Correlation
National Science Foundation (NSF), grant/award no. EAR-2039795: Collaborative Research: Tapping an unused biomarker for insights of past evaporation
Coverage:
Median Latitude: 44.883033 * Median Longitude: -82.374543 * South-bound Latitude: 40.680845 * West-bound Longitude: -99.749450 * North-bound Latitude: 48.096390 * East-bound Longitude: -67.419880
Date/Time Start: 2016-10-18T11:30:00 * Date/Time End: 2023-05-12T10:00:00
Minimum Elevation: 59.0 m * Maximum Elevation: 665.0 m
Event(s):
DIA-16-NY_Debar-1 (Debar Pond) * Latitude: 44.621890 * Longitude: -74.193590 * Date/Time: 2016-10-20T09:00:00 * Elevation: 483.0 m * Location: United States of America * Method/Device: Bolivia-type square-rod piston corer (BT-SRPC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Diefendorf, Aaron F | |||
| 2 | LATITUDE | Latitude | Diefendorf, Aaron F | Geocode | ||
| 3 | LONGITUDE | Longitude | Diefendorf, Aaron F | Geocode | ||
| 4 | ELEVATION | Elevation | m a.s.l. | Diefendorf, Aaron F | Geocode | |
| 5 | Lake, water depth | Lake water depth | m | Diefendorf, Aaron F | Chirp sonar, Lowrance, 52 MHz | |
| 6 | DEPTH, sediment/rock | Depth sed | m | Diefendorf, Aaron F | Geocode | |
| 7 | Depth, top/min | Depth top | m | Diefendorf, Aaron F | ||
| 8 | Depth, bottom/max | Depth bot | m | Diefendorf, Aaron F | ||
| 9 | DATE/TIME | Date/Time | Diefendorf, Aaron F | Geocode | ||
| 10 | Highly branched isoprenoids, C20, per unit mass total organic carbon | C20 HBI/TOC | µg/g | Diefendorf, Aaron F | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | |
| 11 | Highly branched isoprenoids, C20:1, per unit mass total organic carbon | C20:1 HBI/TOC | µg/g | Diefendorf, Aaron F | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | C20:1-A |
| 12 | Highly branched isoprenoids, C20:1, per unit mass total organic carbon | C20:1 HBI/TOC | µg/g | Diefendorf, Aaron F | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | C20:1-ADK |
| 13 | Highly branched isoprenoids, C20:1, per unit mass total organic carbon | C20:1 HBI/TOC | µg/g | Diefendorf, Aaron F | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | C20:1-B |
| 14 | Highly branched isoprenoids, C20:1, per unit mass total organic carbon | C20:1 HBI/TOC | µg/g | Diefendorf, Aaron F | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | C20:1-C |
| 15 | Highly branched isoprenoids, C20:1, per unit mass total organic carbon | C20:1 HBI/TOC | µg/g | Diefendorf, Aaron F | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | C20:1-D |
| 16 | Highly branched isoprenoids, C21, per unit mass total organic carbon | C21 HBI/TOC | µg/g | Diefendorf, Aaron F | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | |
| 17 | Highly branched isoprenoids, C25:2, per unit mass total organic carbon | C25:2 HBI/TOC | µg/g | Diefendorf, Aaron F | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | |
| 18 | Highly branched isoprenoids, C25:3, per unit mass total organic carbon | C25:3 HBI/TOC | µg/g | Diefendorf, Aaron F | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | C25:3-A |
| 19 | Highly branched isoprenoids, C25:3, per unit mass total organic carbon | C25:3 HBI/TOC | µg/g | Diefendorf, Aaron F | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | C25:3-B |
| 20 | Highly branched isoprenoids, C25:4, per unit mass total organic carbon | C25:4 HBI/TOC | µg/g | Diefendorf, Aaron F | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | |
| 21 | Carbon, organic, total | TOC | % | Diefendorf, Aaron F | Elemental analyser isotope ratio mass spectrometer (EA-IRMS) system, Thermo Fisher Scientific, EA Isolink [Thermal Conductivity Detector trace] | |
| 22 | Nitrogen, organic, total | TON | % | Diefendorf, Aaron F | Elemental analyser isotope ratio mass spectrometer (EA-IRMS) system, Thermo Fisher Scientific, EA Isolink [Thermal Conductivity Detector trace] | |
| 23 | Carbon/Nitrogen ratio | C/N | Diefendorf, Aaron F | Elemental analyser isotope ratio mass spectrometer (EA-IRMS) system, Thermo Fisher Scientific, EA Isolink [Thermal Conductivity Detector trace] | ||
| 24 | δ13C, total organic carbon | δ13C TOC | ‰ PDB | Diefendorf, Aaron F | EA-IRMS system, Thermo Fisher Scientific, EA Isolink; interfaced to Conflo IV and IRMS system, Thermo Electron Delta V Advantage | |
| 25 | δ15N, total organic nitrogen | δ15N TON | ‰ air | Diefendorf, Aaron F | EA-IRMS system, Thermo Fisher Scientific, EA Isolink; interfaced to Conflo IV and IRMS system, Thermo Electron Delta V Advantage |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
938 data points