Corcoran, Megan C; Diefendorf, Aaron F; Lowell, Thomas V; Freimuth, Erika J; Schartman, Anna K; Bates, Benjamin R; Stewart, Alexander K; Bird, Broxton W (2020): Highly branched isoprenoid hydrogen and carbon isotope data from lake sediment samples collected from the Adirondack region [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.922297
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Abstract:
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.
Keyword(s):
Supplement to:
Corcoran, Megan C; Diefendorf, Aaron F; Lowell, Thomas V; Freimuth, Erika J; Schartman, Anna K; Bates, Benjamin R; Stewart, Alexander K; Bird, Broxton W (2020): Hydrogen isotopic composition (δ2H) of diatom-derived C20 highly branched isoprenoids from lake sediments tracks lake water δ2H. Organic Geochemistry, 150, 104122, https://doi.org/10.1016/j.orggeochem.2020.104122
Coverage:
Median Latitude: 44.306137 * Median Longitude: -74.205763 * South-bound Latitude: 43.737860 * West-bound Longitude: -75.120800 * North-bound Latitude: 44.725830 * East-bound Longitude: -73.820770
Minimum Elevation: 426.0 m * Maximum Elevation: 665.0 m
Event(s):
ADK1-DEBAR * Latitude: 44.621890 * Longitude: -74.193590 * Elevation: 483.0 m * Lake water depth: 9.2 * Location: Adirondacks, New York, USA * Method/Device: Piston corer (PC) * Comment: Debar Lake
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Corcoran, Megan C | |||
| 2 | Sample ID | Sample ID | Corcoran, Megan C | |||
| 3 | Lake | Lake | Corcoran, Megan C | |||
| 4 | DEPTH, sediment/rock | Depth sed | m | Corcoran, Megan C | Geocode | |
| 5 | Depth, top/min | Depth top | m | Corcoran, Megan C | in sediment | |
| 6 | Depth, bottom/max | Depth bot | m | Corcoran, Megan C | in sediment | |
| 7 | Observation | Obs | Corcoran, Megan C | C20 HBI observed | ||
| 8 | Highly branched isoprenoids per unit sediment mass | HBIs/sed | ng/g | Corcoran, Megan C | Gas chromatograph (Agilent GC 7890) with a quadrupole mass selective detector (MSD, Agilent 5975C ) | |
| 9 | Highly branched isoprenoids C20, δD | C20 HBI δD | ‰ SMOW | Corcoran, Megan C | ThermoFisher Scientific Trace GC coupled to a pyrolysis reactor (Isolink) and interfaced to a Thermo Electron Delta V Advantage IRMS | HBI, vs. VSMOW |
| 10 | Highly branched isoprenoids C20, δ13C | C20 HBI δ13C | ‰ PDB | Corcoran, Megan C | ThermoFisher Scientific Trace GC coupled to a pyrolysis reactor (Isolink) and interfaced to a Thermo Electron Delta V Advantage IRMS | vs. VPDB |
| 11 | δ Deuterium, water | δD H2O | ‰ SMOW | Corcoran, Megan C | Cavity ring-down spectroscopy (CRDS), L2130-i, Picarro Inc. | Lake water, vs. VSMOW |
| 12 | δ18O, water | δ18O H2O | ‰ SMOW | Corcoran, Megan C | Cavity ring-down spectroscopy (CRDS), L2130-i, Picarro Inc. | Lake water, vs. VSMOW |
| 13 | DEPTH, water | Depth water | m | Corcoran, Megan C | Geocode |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
604 data points