V.I. Il'ichev Pacific Oceanological Institute
V.S. Sobolev Institute of Geology and Mineralogy
Geochemical composition (corrected) of the Late Holocene sediments core LV66-3 (Amur Bay of the Sea of Japan) and result of paleoclimatic reconstructions
Data Publisher for Earth & Environmental Science
Sediment core LV66-3 (43°07,473' N,131°49,622' E length of 466 cm; water depth 33 m) was collected in 2014 during the 66th cruise of the R/V Akademik M.A. Lavrentiev in the Amur Bay of the Sea of Japan using a gravity core. The sampling location was chosen in the zone of maximum bottom water hypoxia (Tishchenko et al., 2011), which ensured minimal bioturbation of sediments due to oppression of benthic fauna. Continuous seismic profiling data at this site revealed a homogeneous structure of the sedimentary strata, with no visible breaks in sedimentation and no inclusions of sediments of a different composition (Karnaukh et al., 2016). […]
Sediment core LV66-3 (43°07,473' N,131°49,622' E length of 466 cm; water depth 33 m) was collected in 2014 during the 66th cruise of the R/V Akademik M.A. Lavrentiev in the Amur Bay of the Sea of Japan using a gravity core. The sampling location was chosen in the zone of maximum bottom water hypoxia (Tishchenko et al., 2011), which ensured minimal bioturbation of sediments due to oppression of benthic fauna. Continuous seismic profiling data at this site revealed a homogeneous structure of the sedimentary strata, with no visible breaks in sedimentation and no inclusions of sediments of a different composition (Karnaukh et al., 2016). The sediments of core LV66-3 are represented by monotonous clays and silty clays of black or dark gray color without visible stratification, with slightly varying density and humidity (Akulichev et al., 2015; Karnaukh et al., 2016). The analysis of the prepared samples was performed in the Budker Institute of Nuclear Physics (Novosibirsk) using a scanning X-ray fluorescence analyzer with the synchrotron radiation (XRF SR ) at the VEPP-3 storage ring as the excitation source according to previously developed methods (Darin et al., 2005; 2015; Kalugin et al., 2007; 2015). The scanning step was 0.5-0.8 mm. The concentrations of Ca, K, Ti, Mn, Fe, V, Cr, Ni, Cu, Zn, Mo, Pb, Rb, Ba, Sr, Y, Br, As, and Nb were determined. The detection limits for the elements were (mg/g): 0.5 (Br, Rb, Sr, Nb), 1 (Zr, Y), 2 (Zn, Ni, Mn, Pb), 10 (Fe), 15 (Ti), and 100 (Ca, K) (Kalugin et al., 2015). Rubidium-normalized elements were used for dimensionless variation. The age model of core LV66-3 was based on radiocarbon dates, tephrochronological data, and chemostratigraphy. Calibration of the 14C dates to obtain the calendar age of the studied samples was performed with the Calib program (Stuiver and Reimer, 1993) using the Marine13 calibration curve (Reimer et al., 2013). Correction of the reservoir effect was made using the dating of shells from Novik Bay in the eastern part of the Amur Bay (Kuzmin et al., 2001). Geochemical time-series were created using a methodology previously developed for Siberian lakes (Kalugin et al., 2007; 2013; Darin et al., 2005; 2015; Hildebrandt wet al., 2015; Babich et al., 2015; Rudaya et al., 2016) based on the results of XRF SR scanning of the core in the 0-466 cm interval and its age model with some additions that have been used in paleoreconstructions of shelf sediments in the Arctic seas (Astakhov et al., 2019; 2020; 2023). Considering the feature accumulation of sediment in the Amur Bay (Tishchenko et al., 2006; 2011, Akulichev et al., 2016;, Kalugin et al., 2015) and the experience construction of transfer geochemical functions for other areas (Kalugin et al., 2005; 2013; Babich et al., 1980; 2023; Astakhov et al., 2019; 2023), some elements were removed from the initial feature space: Zr, Nb, and Y are significantly enriched in the tephra of the Baitoushan volcano and overlying sediments, molybdenum is the element with maximum response to redox conditions, lead and zinc are possible anthropogenic contaminants in the surface sediment layer (Kalugin et al., 2015), and elements with very low content and weak variability. The final processing of the remaining 14-element XRF SR scan data matrix (this table) for the construction of transfer functions and paleoclimatic reconstructions was carried out in the following order: - removal of sampling intervals containing instrumental errors, coinciding with layers of different composition (pyroclastics), and showing signs of intense diagenetic transformations; for these reasons, geochemical data for layers 352-363, 372-380 and 426-466 cm were removed; - correction of the content of elements that give anomalous extremes due to the presence of fragments of plant remains, shells and minerals in the sedimentary layers; in these cases, the anomalous contents of chemical elements were replaced by the values obtained by interpolation taking into account their contents in the four nearest sampling points (two from above, two from below); - generate fractional time-scale geochemical series by transferring geochemical information from the linear scale to the time scale corresponding to the age model of the core; - reduction of time series with a fractional time scale to an integral annual time scale with their subsequent smoothed using an 11-year moving average (hereafter referred to as decadal averages); - rubidium normalization of the chemical elements content (this table); - minimax normalization of chemical elements (this table), which makes it possible to bring them into a comparable form, regardless of the scale of their measurement.
Westerlies influenced monsoonal climate: reconstructions of summer/winter temperature and precipitation based on Japan Sea shelf Late Holocene sediments geochemistry
Geoacoustic evidence of methane migration from submarine coaliferous formations to Holocene sediments (Amur Bay, Sea of Japan)
The first discovery of cryptotephra of the catastrophic eruptions of the Baitoushan volcano in the tenth century A.D. in the shelf deposits of the Sea of Japan
Climate and ice conditions of East Siberian Sea during Holocene: Reconstructions based on sedimentary geochemical multiproxy
Reconstructing the Frequency of Catastrophic Floods on the Western Coast of the Sea of Japan Based on Sedimentary Proxy
Reconstructing ice conditions in the southern Chukchi Sea during the last millennium based on chemical composition of sediments and diatom assemblages
Two Millennia of Climate History for the Russian Altai: Integrated Reconstruction from Lake Sediment Data
Influence of meteorological conditions on the geochemistry of modern bottom sediments exemplified by deposits of Donguz-Orun Lake, Caucasus
On the Possibility of Constructing a Quantitative Paleoreconstruction of the Altai Mountains Climate Based on Scanning SR-XRF Data on the Bottom Sediments of Lower Multa
Journal of Surface Investigation-X-Ray Synchrotron and Neutron Techniques
Use of a scanning XRF analysis on SR beams from VEPP-3 storage ring for research of core bottom sediments from Teletskoe Lake with the purpose of high resolution quantitative reconstruction of last millennium paleoclimate
Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment
Recognition of Images in Problems of Qualitative Forecasting of Ore Deposits
Tracing the North Atlantic decadal-scale climate variability in a late Holocene pollen record from southern Siberia
Palaeogeography, Palaeoclimatology, Palaeoecology
Anomalies of bromine in the estuarine sediments as a signal of floods associated with typhoons
Chinese Journal of Oceanology and Limnology
Seasonal and centennial cycles of carbonate mineralisation during the past 2500 years from varved sediment in Lake Shira, South Siberia
800-yr-long records of annual air temperature and precipitation over southern Siberia inferred from Teletskoye Lake sediments
Formation of subsurface shallow gas accumulations in Amurskiy Bay (Peter the Great Bay, Sea of Japan) as a result of postglacial sea-level change, paleoceanographic conditions and hydrological activity
Radiocarbon Reservoir Correction Ages in the Peter the Great Gulf, Sea of Japan, and Eastern Coast of the Kunashir, Southern Kuriles (Northwestern Pacific)
IntCal13 and Marine13 Radiocarbon Age Calibration Curves 0–50,000 Years cal BP
Quantitative reconstructions of mid- to late holocene climate and vegetation in the north-eastern Altai mountains recorded in lake Teletskoye
Extended 14C data base and revised CALIB 3.0 14C age calibration program
The carbonate system of Amur Bay (sea of Japan) under conditions of hypoxia
Forecast of climate changes in the South Primorsky Krai based on periodic natural processes manifested in the chemical composition of Amur Bay bottom sediments
average decadal (11-year) Rb-normalised annual content (error corrected, without diagenetic layers)
average decadal (11-year) Rb and mini-max normalised annual elements content
Temperature, air, annual mean, reconstructed
Precipitation, monthly total, mean, reconstructed
Geochemistry; Japan Sea; Late Holocene; paleoclimatology; shelf sediments; synchrotron radiation; transfer functions; X-ray fluorescence (XRF)