Controls on luminescence signals in lake sediment cores: A study from Lake Suigetsu, Japan

Rex, Charlie L.; Staff, Richard A.; Sanderson, David; Cresswell, A.J.; Marshall, Michael; Hyodo, Masayuki; Horiuchi, Daishi; Tada, Ryuji; Nakagawa, Takeshi

doi:10.1016/j.quageo.2022.101319

Cited by 5 publications

(3 citation statements)

References 33 publications

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“…The luminescence data from floodplain lake Tenndammen confirms that this methodology, which has been used on anthropogenic fluvial pond-sediments (Bishop et al 2011) and Lake Sugetsu (Rex et al 2022) can, in the absence of other drivers, reveal reworked sediment brought in by flood events. This allows 14 C date reversals to be seen as potentially valuable data, rather than only dating 'errors'.…”

Section: Discussionsupporting

confidence: 60%

Luminescence Profiling and Flood Sediments from an Arctic Lake Over the Last Millenia

Poliakova,

Brown,

Sanderson

et al. 2023

Preprint

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A small Arctic floodplain-lake (Tendammen, Colesdalen valley) in Svalbard revealed a laminated sediment sequence with numerous 14C AMS age-depth reversals in its 800 year history. In order to test the hypothesis that the anomalous dates result from catchment erosion and the deposition of reworked sediment and macrofossils, we applied luminescence profiling and flood-sensitive biological proxies. This revealed that many of the dates levels have high portable and laboratory-verified optically and infra-red stimulated luminescence (OSL/IRSL). This is interpreted as resulting from floods delivering partially unbleached sediment-aggregates along with plant macrofossils into the lake. This confirms that luminescence from lake cores can be used to identify flood events from lake sediments, which may often be associated with old carbon from the catchment depending upon catchment history. The flood record generated using a composite age-depth model (SCPs, uplift and selected 14C dates) is compared with other climate records and supports an increasing climatic variability over the last millennia as rapid warming proceeds in the High Arctic.

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Section: Discussionsupporting

confidence: 60%

Luminescence Profiling and Flood Sediments from an Arctic Lake Over the Last Millenia

Poliakova,

Brown,

Sanderson

et al. 2023

Preprint

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“…A series of deep coring campaigns across the past 30 years have excavated materials from below the lake to generate a world-leading palaeoenvironmental archive which spans >98 m of composite depth (from the present day to in excess of 200 ka BP; Nakagawa et al, 2012;McLean et al, 2018). As such, the Lake Suigetsu sediment cores are a rare example of a well preserved, continuous sediment record which extends to the penultimate glacial period (Nakagawa et al, 2012;Rex et al, 2022). Indeed, the upper ~45 m form the longest continuously varved record from the Quaternary (Schlolaut et al, 2012;Schlolaut et al, 2018).…”

Section: Study Sitementioning

confidence: 99%

“…This process was principally driven by subsidence of the western side of the Mikata Fault (which lies <2 km to the east of the lakes) creating accommodation space for the lakes and causing lake deepening with time (Suzuki et al, 2016). The area was perhaps at its most dynamic during TII; the area shifted between fluvial and shallow water environments during MIS 6 (Nakagawa et al, 2012;Rex et al, 2022), before evolving into a lake system. As such, the oldest sediments from Lake Suigetsu are principally a mixture of peats and clays (the latter sometimes finely laminated; Francke et al, in prep).…”

Section: Study Sitementioning

confidence: 99%

Novel observations of East Asian Summer Monsoon evolution during Glacial Termination II from Lake Suigetsu, Japan

Rex,

Staff,

Toney

et al. 2023

Preprint

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Glacial terminations offer a unique opportunity to examine how the East Asian Summer Monsoon (EASM) responds to rapid increases in global temperature and accompanying abrupt climatic reorganisation. Reconstructions from contrasting glacial terminations with differently evolving boundary conditions are of particular value to our understanding of deglacial EASM behaviours, e.g., Termination I (from MIS 2 to MIS 1) and Termination II (from MIS 6 to MIS 5e). However, records of EASM evolution across Termination II are substantially fewer in number than Termination I, as well as exhibiting a significant bias towards continental speleothem archives. Japan is a critically understudied, but demonstrably sensitive area of the EASM region and, during other periods, records from Japan often display unique trends not captured by continental records. Here we present a new EASM record derived from the Lake Suigetsu sediment cores, central Japan, based on compound-specific hydrogen isotope analysis of C30 n-alkanoic acids (δ2HC30acid), which constitutes the first stable isotope-based EASM record from the Japanese archipelago across Termination II. We also present lipid biomarker (n-alkane and n-alkanoic acid) concentrations and indices, which we use to reconstruct early lake formation. The catchment transitioned from a dynamic fluvial environment to a lacustrine one between 131.0 and 129.8 ka BP. The EASM strengthened from 132.5 to 130.0 ka BP (earlier than in continental China), before weakening toward 125.2 ka BP, with some evidence for submillennial-scale variability during this weakening phase; a pattern common to sites across the EASM region which are closer to the northernmost position of the monsoon front. Whilst our record displays some similar characteristics to EASM reconstructions from mainland China, our observations support the assertion that EASM behaviours during Termination II were spatially heterogeneous. Additionally, comparison of our Termination II δ2H¬C30acid record to a record of δ2H¬C30acid from Lake Suigetsu during Termination I suggests that EASM evolution during the last and penultimate deglaciations were distinct due to differently evolving climatic conditions (including the extreme decoupling of polar temperatures during Termination II). We propose that the spatial heterogeneities in EASM strength during Termination II were a result of competing influences from the Northern and Southern Hemispheres, with Japan more closely linked to the latter compared to mainland China due to its maritime location.

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Quartz optical dating

Durcan,

Woor

2025

Encyclopedia of Quaternary Science

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Controls on luminescence signals in lake sediment cores: A study from Lake Suigetsu, Japan

Cited by 5 publications

References 33 publications

Luminescence Profiling and Flood Sediments from an Arctic Lake Over the Last Millenia

Luminescence Profiling and Flood Sediments from an Arctic Lake Over the Last Millenia

Novel observations of East Asian Summer Monsoon evolution during Glacial Termination II from Lake Suigetsu, Japan

Quartz optical dating

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