Bosin, Aleksandr A (2024): Pollen analysis of sediment core LV63-41-2 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.969074 (DOI registration in progress), In: Bosin, AA (2024): Analysis results of sediment core LV63-41-2, NW Pacific [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.969083 (DOI registration in progress)
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Related to:
Gorbarenko, Sergey A; Shi, Xuefa; Malakhova, Galina Y; Bosin, Aleksandr A; Zou, Jianjun; Liu, Yanguang; Chen, Min-Te (2017): Centennial to millennial climate variability in the far northwestern Pacific (off Kamchatka) and its linkage to the East Asian monsoon and North Atlantic from the Last Glacial Maximum to the early Holocene. Climate of the Past, 13(8), 1063-1080, https://doi.org/10.5194/cp-13-1063-2017
Coverage:
Latitude: 51.570000 * Longitude: 160.017000
Minimum DEPTH, sediment/rock: 0.01 m * Maximum DEPTH, sediment/rock: 2.91 m
Event(s):
LV63-41-2 * Latitude: 51.570000 * Longitude: 160.017000 * Elevation: -1924.0 m * Campaign: LV63 * Basis: Akademik M.A. Lavrentyev * Method/Device: Gravity corer (GC)
Comment:
A total of 236 dry sediment samples with an average weight of 5-15 g were sampled every second cm from the studied core to investigate species distribution in the pollen assemblages. More than 300 pollen grains were calculated for species identification using a MICMED 6 microscope with amplification of 480x. Pollen grains were scarce in the core's lower part's sediment; however, the quantity required for statistical analysis was found in the core's upper part at 291 cm. Accordingly, species pollen compositions were determined for 81 samples, which is the required number of grains for statistical analysis. Sample preparation for spore-pollen analysis was carried out according to standard methods, with treatment with 10% KOH followed by separation with a heavy liquid. The pollen groups of trees and shrubs, herbaceous plants, and spores were calculated as proportions of the total number of detected pollen microfossils, and the percentages of taxa within the tree, shrub, and spore groups were determined.
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | DEPTH, sediment/rock | Depth sed | m | Bosin, Aleksandr A | Counting | Geocode |
2 | Pollen climate index | PCI | Bosin, Aleksandr A | Calculated | Kp | |
3 | Alnaster | Alt | % | Bosin, Aleksandr A | Counting | |
4 | Betula sect. Nanae | Bet.Se.N | % | Bosin, Aleksandr A | Counting | |
5 | Alnus | Alnus | % | Bosin, Aleksandr A | Counting | |
6 | Pinus pumila | P. pumila | % | Bosin, Aleksandr A | Counting | |
7 | Betula ermanii | B. ermanii | % | Bosin, Aleksandr A | Counting | |
8 | Picea sp. | Picea sp. | % | Bosin, Aleksandr A | Counting | |
9 | Polypodiaceae | Polypo | % | Bosin, Aleksandr A | Counting | |
10 | Bryales | Bryales | % | Bosin, Aleksandr A | Counting | |
11 | Spores | Spores | % | Bosin, Aleksandr A | Counting | |
12 | Pollen, trees and shrubs | Pollen trees+shrubs | % | Bosin, Aleksandr A | Counting | |
13 | Pollen, herbs | Pollen herbs | % | Bosin, Aleksandr A | Counting |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
960 data points