Tephra layers of large explosive eruptions of Baitoushan/Changbaishan Volcano in the Japan Sea sediments

Derkachev, A. N.; Utkin, I. V.; Nikolaeva, N. A.; Gorbarenko, Sergey A; Malakhova, G. I.; Portnyagin, Maxim; Sakhno, V. G.; Shi, Xuefa; Lv, Huahua

doi:10.1016/j.quaint.2019.01.043

Cited by 12 publications

(14 citation statements)

References 79 publications

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“…In contrast, those samples poor in organic matter have a low CL. Sediment colour features are widely used and have proven helpful for describing stratigraphy and correlating Quaternary deposits in the Japan Sea (Tada et al 1999(Tada et al , 2018Ikehara & Itaki 2007;Kido et al 2007;Gorbarenko et al 2014Gorbarenko et al , 2015Irino et al 2018;Derkachev et al 2019). CL is similar to the colour parameter L*, which is measured with a Minolta CM-2002 spectrophotometer.…”

Section: Methodsmentioning

confidence: 99%

“…CL was measured following an original method that used a digital Canon EOS 50D mirror camera with Canon EF28 mm f/1.8 USM lens (exposure of 1/100 s, diaphragm f11, photosensitivity ISO of 100). After processing the raw photos using Adobe Camera RAW, the content of red, green and blue colours (RGB range), as well as the lightness of a 4 cm 9 0.1 mm slice were measured and averaged with a step of 1 mm (Gorbarenko et al 2015;Kolesnik et al 2018;Derkachev et al 2019). The CL parameter is determined by an original device that has a much better resolution along the core length as compared to the L* colour parameter.…”

Section: Methodsmentioning

confidence: 99%

“…3). See Derkachev et al (2019) for further details on the age model validation for core LV 53-29. During the first step, we compared CL and MS records from core LV 53-29 with L* and MS data for a well-dated core from the southern Japan Sea (Ikehara & Itaki 2007;Kido et al 2007;Watanabe et al 2007;Yokoyama et al 2007;Khim et al 2009Khim et al , 2012; Fig.…”

Section: Age Modelmentioning

confidence: 99%

“…Core LV 53-29 has three intercalating felsic tephra layers (Fig. 2): B-V (Baegdusan-Vladivostok tephra)c. 29.0 ka (Derkachev et al 2019); AT (Aira-Tanzawa tephra) -29.428-30.148 ka (Machida & Arai 2003;Smith et al 2013;Ikehara 2015) and B-Sado (Baegdusan-Sado tephra) -71.3 ka (Derkachev et al 2019).…”

Section: Age Modelmentioning

confidence: 99%

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Millennial‐scale environmental changes in the northwestern Japan Sea during the last glacial cycle

Евстигнеева

Cherepanova

Gorbarenko

et al. 2020

Boreas

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High-resolution analyses of pollen and diatoms in core LV 53-29 from the northwestern Japan Sea trace climate, vegetation and oceanographic changes during the past 120 ka. The age model for the core was based on tephrochronology, colour lightness and magnetic susceptibility and was used to aid correlation with Dansgaard-Oeschger cycles (warm Greenland interstadials (GIs) and cold Greenland stadials (GSs)). The palynological and diatom data from this core record the changing influences of the East Asian monsoon, eustatic fluctuations in sea level, and the impact of variations in the direction and intensity of marine currents. Increases in Quercus and Cryptomeria pollen reflect GIs. The highest values of Cryptomeria were recorded during Marine Isotope Stage (MIS) 5 and were associatedwith an increase in the intensityof the summer monsoon. The increase in Larix pollen is an indicatorof GSs, and it occurs in all marine isotopic stages. Changes in diatom records indicate that oceanographic conditions in the northwestern Japan Sea differed from its southern and eastern regions. An increase in the cold-water and polyhalobous Rhizosolenia hebetata indicates GIs, although the surface water temperatures were colder than today with normal salinity. Species of the genus Chaetoceros, which is characteristic of GSs, were abundant during MIS 2. The predominance of Chaetoceros taxa and the high total abundance of diatoms may reflect regional upwelling conditions. The absence of brackish-water species at this time indicates a slight freshening of the surface water. The study of pollen, spores and diatoms in sediments from the northwestern Japan Sea illustrates the great potential of these proxies for identifying abrupt climate oscillations preserved in high-temporal resolution marine records, particularly those related to interstadial and stadial conditions.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Age Modelmentioning

confidence: 99%

Section: Age Modelmentioning

confidence: 99%

See 2 more Smart Citations

Millennial‐scale environmental changes in the northwestern Japan Sea during the last glacial cycle

Евстигнеева

Cherepanova

Gorbarenko

et al. 2020

Boreas

Self Cite

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“…We have compiled 76 thickness measurements (see Supplementing Document for raw data) of the B-Tm ash from previous works (Fig. 1; Utkin 1977;1989;Machida and Arai 1983;Machida et al 1990;Machida and Arai 2003;Furukawa and Nanayama 2006;Okuno et al 2011;Hughes et al 2013;Chen et al 2016;Ikehara et al 2017;Derkachev et al 2019;Nakanishi et al 2020;Razjigaeva et al 2020). Thickness data that are reported to be reworked or contain non-pyroclastic materials are excluded.…”

Section: The B-tm Ashmentioning

confidence: 99%

The Millennium Eruption of Changbaishan Tianchi Volcano is VEI 6, not 7

et al. 2021

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The Millennium Eruption (AD 946–947) of Changbaishan Tianchi Volcano is one of the largest known eruptions in recorded history. With the help of previously published isopachs and distal ash thicknesses, we re-calculate the bulk volume of its distal eruptive product, the B-Tm ash, as 27–62 km3 and the total eruption volume as 40–98 km3. The updated volume estimates are around half of those estimated by previous studies of this seminal eruption. Our work shows that the Millennium Eruption is a VEI-6 eruption, rather than VEI-7 as previously envisaged, and its magnitude is also lower than previously thought. This has implications for regional frequency-magnitude relationships and may also partially explain the limited regional, rather than global, climatic effects of the Millennium Eruption.

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