| 000 | 03646nlm1a2200457 4500 | ||
|---|---|---|---|
| 001 | 656151 | ||
| 005 | 20231030041416.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\22572 | ||
| 035 | _aRU\TPU\network\21236 | ||
| 090 | _a656151 | ||
| 100 | _a20171027a2017 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aDE | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aDeglacial sea level history of the East Siberian Sea and Chukchi Sea margins _fT. M. Cronin [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: p. 1108-1110] | ||
| 330 | _aDeglacial (12.8–10.7?ka) sea level history on the East Siberian continental shelf and upper continental slope was reconstructed using new geophysical records and sediment cores taken during Leg 2 of the 2014 SWERUS-C3 expedition. The focus of this study is two cores from Herald Canyon, piston core SWERUS-L2-4-PC1 (4-PC1) and multicore SWERUS-L2-4-MC1 (4-MC1), and a gravity core from an East Siberian Sea transect, SWERUS-L2-20-GC1 (20-GC1). Cores 4-PC1 and 20-GC were taken at 120 and 115?m of modern water depth, respectively, only a few meters above the global last glacial maximum (LGM; ????24 kiloannum or ka) minimum sea level of ????125–130 meters below sea level (m?b.s.l.). Using calibrated radiocarbon ages mainly on molluscs for chronology and the ecology of benthic foraminifera and ostracode species to estimate paleodepths, the data reveal a dominance of river-proximal species during the early part of the Younger Dryas event (YD, Greenland Stadial GS-1) followed by a rise in river-intermediate species in the late Younger Dryas or the early Holocene (Preboreal) period. A rapid relative sea level rise beginning at roughly 11.4 to 10.8?ka (????400?cm of core depth) is indicated by a sharp faunal change and unconformity or condensed zone of sedimentation. Regional sea level at this time was about 108?m?b.s.l. at the 4-PC1 site and 102?m?b.s.l. at 20-GC1. Regional sea level near the end of the YD was up to 42–47?m lower than predicted by geophysical models corrected for glacio-isostatic adjustment. This discrepancy could be explained by delayed isostatic adjustment caused by a greater volume and/or geographical extent of glacial-age land ice and/or ice shelves in the western Arctic Ocean and adjacent Siberian land areas. | ||
| 461 |
_tClimate of the Past _ointernational scientific journal _d2005- |
||
| 463 |
_tVol. 13, iss. 9 _v[P. 1097-1110] _d2017 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aСеверный Ледовитый океан | |
| 610 | 1 | _aЧукотское море | |
| 610 | 1 | _aголоцен | |
| 610 | 1 | _aледники | |
| 610 | 1 | _aшельфы | |
| 701 | 1 |
_aCronin _bT. M. _gThomas M. |
|
| 701 | 1 |
_aO'Regan _bM. _gMatthew |
|
| 701 | 1 |
_aPearce _bC. _gChristof |
|
| 701 | 1 |
_aGemery _bL. _gLaura |
|
| 701 | 1 |
_aToomey _bM. R. _gMichael R. |
|
| 701 | 1 |
_aSemiletov _bI. P. _cgeographer _cProfessor of Tomsk Polytechnic University, doctor of geographical Sciences _f1955- _gIgor Petrovich _2stltpush _3(RuTPU)RU\TPU\pers\34220 |
|
| 701 | 1 |
_aJakobsson _bM. _gMartin |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bИнститут природных ресурсов (ИПР) _bКафедра геологии и разведки полезных ископаемых (ГРПИ) _h2181 _2stltpush _3(RuTPU)RU\TPU\col\18660 |
| 801 | 2 |
_aRU _b63413507 _c20171027 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.5194/cp-13-1097-2017 | |
| 942 | _cCF | ||