Novak, Joseph B; Russell, James M; Lindemuth, Emma; Prokopenko, Alexander A; Pérez-Angel, Lina C; Zhao, Boyang; Swann, George E A; Polissar, Pratigya J (2025): Orbitally tuned age model of sediment cores 340-TC1, 340-PC1, and 333-PC2 dry bulk density composite section [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.973517, In: Novak, JB et al. (2025): Compiled globally-distributed brGDGT data [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.973601
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Published: 2025-02-28 • DOI registered: 2025-03-29
Related to:
Novak, Joseph B; Russell, James M; Lindemuth, Emma; Prokopenko, Alexander A; Pérez-Angel, Lina C; Zhao, Boyang; Swann, George E A; Polissar, Pratigya J (2025): The Branched GDGT Isomer Ratio Refines Lacustrine Paleotemperature Estimates. Geochemistry, Geophysics, Geosystems, 26(3), e2024GC012069, https://doi.org/10.1029/2024GC012069
References:
Peck, J A; King, John W; Colman, Steven M; Kravchinsky, V A (1994): A rock-magnetic record from Lake Baikal, Siberia: Evidence for Late Quaternary climate change. Earth and Planetary Science Letters, 122(1-2), 221-238, https://doi.org/10.1016/0012-821X(94)90062-0
Prokopenko, Alexander A; Hinnov, Linda A; Williams, Douglas F; Kuzmin, Mikhail I (2006): Orbital forcing of continental climate during the Pleistocene: a complete astronomically tuned climatic record from Lake Baikal, SE Siberia. Quaternary Science Reviews, 25(23-24), 3431-3457, https://doi.org/10.1016/j.quascirev.2006.10.002
Funding:
National Science Foundation (NSF), grant/award no. NNA 22-02918: Rainfall, Ecosystems, and Fire in Warm Late Neogene Climates of the Lake Baikal Region
Coverage:
Median Latitude: 53.662390 * Median Longitude: 108.292600 * South-bound Latitude: 53.653000 * West-bound Longitude: 108.155800 * North-bound Latitude: 53.667170 * East-bound Longitude: 108.361000
Date/Time Start: 1991-08-02T00:00:00 * Date/Time End: 1992-07-28T00:00:00
Event(s):
333-PC2 * Latitude: 53.653000 * Longitude: 108.155800 * Lake water depth: 390 m * Location: Lake Baikal/Academician Ridge * Method/Device: Piston corer (PC)
Comment:
Cores 333-PC2, 340-TC1, and 340-PC1 were correlated to generate a continuous composite section based on dry bulk density.
Magnetic susceptibility profiles (Peck et al., 1994) between cores 333-PC2, 340-TC1, and 340-PC1 along our composite section are generally correlative, indicating our correlation of the cores' physical properties is robust.
Our 333-340 composite section was then assigned age by correlating dry bulk density to the orbitally-tuned BDP-96 biogenic silica record (Prokopenko et al., 2006), supplemented by published radiocarbon dates (Peck et al., 1994) and an assumed core top age of 0 ka.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Datum/event | Datum/event | Novak, Joseph B | stratigraphic feature used to constrain age | ||
| 2 | Age, dating method | Dating meth | Novak, Joseph B | method of stratigrpahic correlation or age assignment | ||
| 3 | Depth, composite | Depth comp | mcd | Novak, Joseph B | composite depth of the tiepoint | |
| 4 | Age, dated | Age dated | ka | Novak, Joseph B | age of the tiepoint | |
| 5 | Sedimentation rate | SR | cm/ka | Novak, Joseph B | Inferred from age model |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
114 data points
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