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Onodera, Jonaotaro; Kemp, Alan E S; Pearce, Richard B; Horikawa, Keiji; Takahashi, Kozo (2023): Diatom fragment composition in the back-scattered electron images obtained from IODP Hole 323-U1340A [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.963906, In: Onodera, J et al. (2023): Lamina thickness, diatom assemblage, and rare-earth element composition in the varved sediments of the mid-Pleistocene Bering Sea (Cores IODP Expedition 323-U1340A-10H and 14H) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.963903

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Keyword(s):
Bering Sea; Diatom; Pleistocene; Rare earth elements; Sinking particle flux; Varve
Project(s):
Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)
Funding:
Japan Society for the Promotion of Science (JSPS), grant/award no. 22-5808: JSPS Research Fellowships for Young Scientists
Japan Society for the Promotion of Science (JSPS), grant/award no. 23810009: Understanding of "green-house earth" based on environmental reconstruction of the Pliocene warmth
Coverage:
Latitude: 53.400013 * Longitude: -179.521622
Minimum DEPTH, sediment/rock: 88.5556 m * Maximum DEPTH, sediment/rock: 125.9968 m
Event(s):
323-U1340A * Latitude: 53.400013 * Longitude: -179.521622 * Elevation: -1294.7 m * Recovery: 535.91 m * Campaign: Exp323 (Bering Sea Paleoceanography) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 71 cores; 604.5 m cored; 89 % recovered
Comment:
The dataset of diatom fragment composition in the back-scattered electron images (BSEI) of cross thin section of laminated sediments and lamina thickness for Sections IODP323-U1340A- 10H-1W, 134-149cm, 10H-2W, 001-116cm, and 14H-1W, 60-88cm.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Sample code/labelSample labelOnodera, JonaotaroScanning electron microscope (SEM)
2Thin section IDThin sec IDOnodera, JonaotaroScanning electron microscope (SEM)name of sediment slab sample with the thin section ID in parenthesis
3Lamina layer numberLamina layer noOnodera, JonaotaroScanning electron microscope (SEM)number of lamina layer counted from the top side of the sediment core
4Lamina typeLamina typeOnodera, JonaotaroScanning electron microscope (SEM)type of lamina (lithogenic-rich layer or organic-rich layer). The term "massive" in "Lamina Layer #" represents that the layer is well disturbed sediment
5Varve numberVarve No#Onodera, JonaotaroScanning electron microscope (SEM)number of varve (annual laminated sediments composed of lithogenic and organic layers) counted from the bottom of each laminated partina Layer #"" represents that the layer is well disturbed sediment
6Lamina thicknessLamina thnmmOnodera, JonaotaroScanning electron microscope (SEM)alithmetric mean of lamina thickness (N = 5)
7DEPTH, sediment/rockDepth sedmOnodera, JonaotaroIODP Depth Scale TerminologyGeocode – bottom depth of the lamina (as the CCSF-A of IODP)
8Diatoms, valvesDiatom valv#Onodera, JonaotaroSmear slide analysiscounted diatom fragments
9NeodenticulaNeodenticula%Onodera, JonaotaroScanning electron microscope (SEM)
10Diatoms, discoidalDiatom discoid%Onodera, JonaotaroScanning electron microscope (SEM)
11ThalassiothrixThalassiothrix%Onodera, JonaotaroScanning electron microscope (SEM)
12Chaetoceros, setaeChaetoceros setae%Onodera, JonaotaroScanning electron microscope (SEM)
13Chaetoceros, resting sporesChaetoceros rs%Onodera, JonaotaroScanning electron microscope (SEM)
14EupyxidiculaEupyxidicula%Onodera, JonaotaroScanning electron microscope (SEM)
15CoscinodiscusCoscinodiscus%Onodera, JonaotaroScanning electron microscope (SEM)
16OdontellaOdontella%Onodera, JonaotaroScanning electron microscope (SEM)
17AsteromphalusAsteromphalus%Onodera, JonaotaroScanning electron microscope (SEM)
18PorosiraPorosira%Onodera, JonaotaroScanning electron microscope (SEM)
19Thalassiosira antarctica, resting sporesT. antarctica rs%Onodera, JonaotaroScanning electron microscope (SEM)
20ParaliaParalia%Onodera, JonaotaroScanning electron microscope (SEM)
21Proboscia/Rhizosolenia groupProboscia/Rhizosolenia gr%Onodera, JonaotaroScanning electron microscope (SEM)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
14244 data points

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