Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea

A marine sediment record from the central Bering Sea, spanning the last 20 thousand years (ka), was studied to unravel the depositional history with regard to terrigenous sediment supply and biogenic sedimentation. Methodic approaches comprised the inference of accumulation rates of siliciclastic and biogenic components, grain-size analysis, and (clay) mineralogy, as well as paleoclimatic modelling. Changes in the depositional history provides insight into land-ocean linkages of paleoenvironmental changes. During the finale of the Last Glacial Maximum, the depositional environment was characterized by hemipelagic background sedimentation. A marked change in the terrigenous sediment provenance during the late Heinrich 1 Stadial (15.7–14.5 ka), indicated by increases in kaolinite and a high glaciofluvial influx of clay, gives evidence of the deglaciation of the Brooks Range in the hinterland of Alaska. This meltwater pulse also stimulated the postglacial onset of biological productivity. Glacial melt implies regional climate warming during a time of widespread cooling on the northern hemisphere. Our simulation experiment with a coupled climate model suggests atmospheric teleconnections to the North Atlantic, with impacts on the dynamics of the Aleutian Low system that gave rise to warmer winters and an early onset of spring during that time. The late deglacial period between 14.5 and 11.0 ka was characterized by enhanced fluvial runoff and biological productivity in the course of climate amelioration, sea-level rise, seasonal sea-ice retreat, and permafrost thaw in the hinterland. The latter processes temporarily stalled during the Younger Dryas stadial (12.9-11.7 ka) and commenced again during the Preboreal (earliest Holocene), after 11.7 ka. High river runoff might have fertilized the Bering Sea and contributed to enhanced upper ocean stratification. Since 11.0 ka, advanced transgression has shifted the coast line and fluvial influence of the Yukon River away from the study site. The opening of the Bering Strait strengthened contour currents along the continental slope, leaving behind winnowed sand-rich sediments through the early to mid-Holocene, with non-deposition occurring since about 6.0 ka. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Rong Wang [verfasserIn] Gerhard Kuhn [verfasserIn] Xun Gong [verfasserIn] Boris K. Biskaborn [verfasserIn] Rainer Gersonde [verfasserIn] Lester Lembke-Jene [verfasserIn] Gerrit Lohmann [verfasserIn] Ralf Tiedemann [verfasserIn] Bernhard Diekmann [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	North Pacific terrigenous sediments heinrich event brooks range deglaciation meltwater

Übergeordnetes Werk:	In: Frontiers in Earth Science - Frontiers Media S.A., 2014, 9(2021)
Übergeordnetes Werk:	volume:9 ; year:2021

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3389/feart.2021.712415

Katalog-ID:	DOAJ06061434X

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allfields	10.3389/feart.2021.712415 doi (DE-627)DOAJ06061434X (DE-599)DOAJda33cf072f2e433a837342905a4e7119 DE-627 ger DE-627 rakwb eng Rong Wang verfasserin aut Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A marine sediment record from the central Bering Sea, spanning the last 20 thousand years (ka), was studied to unravel the depositional history with regard to terrigenous sediment supply and biogenic sedimentation. Methodic approaches comprised the inference of accumulation rates of siliciclastic and biogenic components, grain-size analysis, and (clay) mineralogy, as well as paleoclimatic modelling. Changes in the depositional history provides insight into land-ocean linkages of paleoenvironmental changes. During the finale of the Last Glacial Maximum, the depositional environment was characterized by hemipelagic background sedimentation. A marked change in the terrigenous sediment provenance during the late Heinrich 1 Stadial (15.7–14.5 ka), indicated by increases in kaolinite and a high glaciofluvial influx of clay, gives evidence of the deglaciation of the Brooks Range in the hinterland of Alaska. This meltwater pulse also stimulated the postglacial onset of biological productivity. Glacial melt implies regional climate warming during a time of widespread cooling on the northern hemisphere. Our simulation experiment with a coupled climate model suggests atmospheric teleconnections to the North Atlantic, with impacts on the dynamics of the Aleutian Low system that gave rise to warmer winters and an early onset of spring during that time. The late deglacial period between 14.5 and 11.0 ka was characterized by enhanced fluvial runoff and biological productivity in the course of climate amelioration, sea-level rise, seasonal sea-ice retreat, and permafrost thaw in the hinterland. The latter processes temporarily stalled during the Younger Dryas stadial (12.9-11.7 ka) and commenced again during the Preboreal (earliest Holocene), after 11.7 ka. High river runoff might have fertilized the Bering Sea and contributed to enhanced upper ocean stratification. Since 11.0 ka, advanced transgression has shifted the coast line and fluvial influence of the Yukon River away from the study site. The opening of the Bering Strait strengthened contour currents along the continental slope, leaving behind winnowed sand-rich sediments through the early to mid-Holocene, with non-deposition occurring since about 6.0 ka. North Pacific terrigenous sediments heinrich event brooks range deglaciation meltwater Science Q Rong Wang verfasserin aut Gerhard Kuhn verfasserin aut Xun Gong verfasserin aut Boris K. Biskaborn verfasserin aut Rainer Gersonde verfasserin aut Lester Lembke-Jene verfasserin aut Gerrit Lohmann verfasserin aut Gerrit Lohmann verfasserin aut Ralf Tiedemann verfasserin aut Ralf Tiedemann verfasserin aut Bernhard Diekmann verfasserin aut Bernhard Diekmann verfasserin aut In Frontiers in Earth Science Frontiers Media S.A., 2014 9(2021) (DE-627)771399731 (DE-600)2741235-0 22966463 nnns volume:9 year:2021 https://doi.org/10.3389/feart.2021.712415 kostenfrei https://doaj.org/article/da33cf072f2e433a837342905a4e7119 kostenfrei https://www.frontiersin.org/articles/10.3389/feart.2021.712415/full kostenfrei https://doaj.org/toc/2296-6463 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2021
spelling	10.3389/feart.2021.712415 doi (DE-627)DOAJ06061434X (DE-599)DOAJda33cf072f2e433a837342905a4e7119 DE-627 ger DE-627 rakwb eng Rong Wang verfasserin aut Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A marine sediment record from the central Bering Sea, spanning the last 20 thousand years (ka), was studied to unravel the depositional history with regard to terrigenous sediment supply and biogenic sedimentation. Methodic approaches comprised the inference of accumulation rates of siliciclastic and biogenic components, grain-size analysis, and (clay) mineralogy, as well as paleoclimatic modelling. Changes in the depositional history provides insight into land-ocean linkages of paleoenvironmental changes. During the finale of the Last Glacial Maximum, the depositional environment was characterized by hemipelagic background sedimentation. A marked change in the terrigenous sediment provenance during the late Heinrich 1 Stadial (15.7–14.5 ka), indicated by increases in kaolinite and a high glaciofluvial influx of clay, gives evidence of the deglaciation of the Brooks Range in the hinterland of Alaska. This meltwater pulse also stimulated the postglacial onset of biological productivity. Glacial melt implies regional climate warming during a time of widespread cooling on the northern hemisphere. Our simulation experiment with a coupled climate model suggests atmospheric teleconnections to the North Atlantic, with impacts on the dynamics of the Aleutian Low system that gave rise to warmer winters and an early onset of spring during that time. The late deglacial period between 14.5 and 11.0 ka was characterized by enhanced fluvial runoff and biological productivity in the course of climate amelioration, sea-level rise, seasonal sea-ice retreat, and permafrost thaw in the hinterland. The latter processes temporarily stalled during the Younger Dryas stadial (12.9-11.7 ka) and commenced again during the Preboreal (earliest Holocene), after 11.7 ka. High river runoff might have fertilized the Bering Sea and contributed to enhanced upper ocean stratification. Since 11.0 ka, advanced transgression has shifted the coast line and fluvial influence of the Yukon River away from the study site. The opening of the Bering Strait strengthened contour currents along the continental slope, leaving behind winnowed sand-rich sediments through the early to mid-Holocene, with non-deposition occurring since about 6.0 ka. North Pacific terrigenous sediments heinrich event brooks range deglaciation meltwater Science Q Rong Wang verfasserin aut Gerhard Kuhn verfasserin aut Xun Gong verfasserin aut Boris K. Biskaborn verfasserin aut Rainer Gersonde verfasserin aut Lester Lembke-Jene verfasserin aut Gerrit Lohmann verfasserin aut Gerrit Lohmann verfasserin aut Ralf Tiedemann verfasserin aut Ralf Tiedemann verfasserin aut Bernhard Diekmann verfasserin aut Bernhard Diekmann verfasserin aut In Frontiers in Earth Science Frontiers Media S.A., 2014 9(2021) (DE-627)771399731 (DE-600)2741235-0 22966463 nnns volume:9 year:2021 https://doi.org/10.3389/feart.2021.712415 kostenfrei https://doaj.org/article/da33cf072f2e433a837342905a4e7119 kostenfrei https://www.frontiersin.org/articles/10.3389/feart.2021.712415/full kostenfrei https://doaj.org/toc/2296-6463 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2021
allfields_unstemmed	10.3389/feart.2021.712415 doi (DE-627)DOAJ06061434X (DE-599)DOAJda33cf072f2e433a837342905a4e7119 DE-627 ger DE-627 rakwb eng Rong Wang verfasserin aut Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A marine sediment record from the central Bering Sea, spanning the last 20 thousand years (ka), was studied to unravel the depositional history with regard to terrigenous sediment supply and biogenic sedimentation. Methodic approaches comprised the inference of accumulation rates of siliciclastic and biogenic components, grain-size analysis, and (clay) mineralogy, as well as paleoclimatic modelling. Changes in the depositional history provides insight into land-ocean linkages of paleoenvironmental changes. During the finale of the Last Glacial Maximum, the depositional environment was characterized by hemipelagic background sedimentation. A marked change in the terrigenous sediment provenance during the late Heinrich 1 Stadial (15.7–14.5 ka), indicated by increases in kaolinite and a high glaciofluvial influx of clay, gives evidence of the deglaciation of the Brooks Range in the hinterland of Alaska. This meltwater pulse also stimulated the postglacial onset of biological productivity. Glacial melt implies regional climate warming during a time of widespread cooling on the northern hemisphere. Our simulation experiment with a coupled climate model suggests atmospheric teleconnections to the North Atlantic, with impacts on the dynamics of the Aleutian Low system that gave rise to warmer winters and an early onset of spring during that time. The late deglacial period between 14.5 and 11.0 ka was characterized by enhanced fluvial runoff and biological productivity in the course of climate amelioration, sea-level rise, seasonal sea-ice retreat, and permafrost thaw in the hinterland. The latter processes temporarily stalled during the Younger Dryas stadial (12.9-11.7 ka) and commenced again during the Preboreal (earliest Holocene), after 11.7 ka. High river runoff might have fertilized the Bering Sea and contributed to enhanced upper ocean stratification. Since 11.0 ka, advanced transgression has shifted the coast line and fluvial influence of the Yukon River away from the study site. The opening of the Bering Strait strengthened contour currents along the continental slope, leaving behind winnowed sand-rich sediments through the early to mid-Holocene, with non-deposition occurring since about 6.0 ka. North Pacific terrigenous sediments heinrich event brooks range deglaciation meltwater Science Q Rong Wang verfasserin aut Gerhard Kuhn verfasserin aut Xun Gong verfasserin aut Boris K. Biskaborn verfasserin aut Rainer Gersonde verfasserin aut Lester Lembke-Jene verfasserin aut Gerrit Lohmann verfasserin aut Gerrit Lohmann verfasserin aut Ralf Tiedemann verfasserin aut Ralf Tiedemann verfasserin aut Bernhard Diekmann verfasserin aut Bernhard Diekmann verfasserin aut In Frontiers in Earth Science Frontiers Media S.A., 2014 9(2021) (DE-627)771399731 (DE-600)2741235-0 22966463 nnns volume:9 year:2021 https://doi.org/10.3389/feart.2021.712415 kostenfrei https://doaj.org/article/da33cf072f2e433a837342905a4e7119 kostenfrei https://www.frontiersin.org/articles/10.3389/feart.2021.712415/full kostenfrei https://doaj.org/toc/2296-6463 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2021
allfieldsGer	10.3389/feart.2021.712415 doi (DE-627)DOAJ06061434X (DE-599)DOAJda33cf072f2e433a837342905a4e7119 DE-627 ger DE-627 rakwb eng Rong Wang verfasserin aut Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A marine sediment record from the central Bering Sea, spanning the last 20 thousand years (ka), was studied to unravel the depositional history with regard to terrigenous sediment supply and biogenic sedimentation. Methodic approaches comprised the inference of accumulation rates of siliciclastic and biogenic components, grain-size analysis, and (clay) mineralogy, as well as paleoclimatic modelling. Changes in the depositional history provides insight into land-ocean linkages of paleoenvironmental changes. During the finale of the Last Glacial Maximum, the depositional environment was characterized by hemipelagic background sedimentation. A marked change in the terrigenous sediment provenance during the late Heinrich 1 Stadial (15.7–14.5 ka), indicated by increases in kaolinite and a high glaciofluvial influx of clay, gives evidence of the deglaciation of the Brooks Range in the hinterland of Alaska. This meltwater pulse also stimulated the postglacial onset of biological productivity. Glacial melt implies regional climate warming during a time of widespread cooling on the northern hemisphere. Our simulation experiment with a coupled climate model suggests atmospheric teleconnections to the North Atlantic, with impacts on the dynamics of the Aleutian Low system that gave rise to warmer winters and an early onset of spring during that time. The late deglacial period between 14.5 and 11.0 ka was characterized by enhanced fluvial runoff and biological productivity in the course of climate amelioration, sea-level rise, seasonal sea-ice retreat, and permafrost thaw in the hinterland. The latter processes temporarily stalled during the Younger Dryas stadial (12.9-11.7 ka) and commenced again during the Preboreal (earliest Holocene), after 11.7 ka. High river runoff might have fertilized the Bering Sea and contributed to enhanced upper ocean stratification. Since 11.0 ka, advanced transgression has shifted the coast line and fluvial influence of the Yukon River away from the study site. The opening of the Bering Strait strengthened contour currents along the continental slope, leaving behind winnowed sand-rich sediments through the early to mid-Holocene, with non-deposition occurring since about 6.0 ka. North Pacific terrigenous sediments heinrich event brooks range deglaciation meltwater Science Q Rong Wang verfasserin aut Gerhard Kuhn verfasserin aut Xun Gong verfasserin aut Boris K. Biskaborn verfasserin aut Rainer Gersonde verfasserin aut Lester Lembke-Jene verfasserin aut Gerrit Lohmann verfasserin aut Gerrit Lohmann verfasserin aut Ralf Tiedemann verfasserin aut Ralf Tiedemann verfasserin aut Bernhard Diekmann verfasserin aut Bernhard Diekmann verfasserin aut In Frontiers in Earth Science Frontiers Media S.A., 2014 9(2021) (DE-627)771399731 (DE-600)2741235-0 22966463 nnns volume:9 year:2021 https://doi.org/10.3389/feart.2021.712415 kostenfrei https://doaj.org/article/da33cf072f2e433a837342905a4e7119 kostenfrei https://www.frontiersin.org/articles/10.3389/feart.2021.712415/full kostenfrei https://doaj.org/toc/2296-6463 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2021
allfieldsSound	10.3389/feart.2021.712415 doi (DE-627)DOAJ06061434X (DE-599)DOAJda33cf072f2e433a837342905a4e7119 DE-627 ger DE-627 rakwb eng Rong Wang verfasserin aut Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A marine sediment record from the central Bering Sea, spanning the last 20 thousand years (ka), was studied to unravel the depositional history with regard to terrigenous sediment supply and biogenic sedimentation. Methodic approaches comprised the inference of accumulation rates of siliciclastic and biogenic components, grain-size analysis, and (clay) mineralogy, as well as paleoclimatic modelling. Changes in the depositional history provides insight into land-ocean linkages of paleoenvironmental changes. During the finale of the Last Glacial Maximum, the depositional environment was characterized by hemipelagic background sedimentation. A marked change in the terrigenous sediment provenance during the late Heinrich 1 Stadial (15.7–14.5 ka), indicated by increases in kaolinite and a high glaciofluvial influx of clay, gives evidence of the deglaciation of the Brooks Range in the hinterland of Alaska. This meltwater pulse also stimulated the postglacial onset of biological productivity. Glacial melt implies regional climate warming during a time of widespread cooling on the northern hemisphere. Our simulation experiment with a coupled climate model suggests atmospheric teleconnections to the North Atlantic, with impacts on the dynamics of the Aleutian Low system that gave rise to warmer winters and an early onset of spring during that time. The late deglacial period between 14.5 and 11.0 ka was characterized by enhanced fluvial runoff and biological productivity in the course of climate amelioration, sea-level rise, seasonal sea-ice retreat, and permafrost thaw in the hinterland. The latter processes temporarily stalled during the Younger Dryas stadial (12.9-11.7 ka) and commenced again during the Preboreal (earliest Holocene), after 11.7 ka. High river runoff might have fertilized the Bering Sea and contributed to enhanced upper ocean stratification. Since 11.0 ka, advanced transgression has shifted the coast line and fluvial influence of the Yukon River away from the study site. The opening of the Bering Strait strengthened contour currents along the continental slope, leaving behind winnowed sand-rich sediments through the early to mid-Holocene, with non-deposition occurring since about 6.0 ka. North Pacific terrigenous sediments heinrich event brooks range deglaciation meltwater Science Q Rong Wang verfasserin aut Gerhard Kuhn verfasserin aut Xun Gong verfasserin aut Boris K. Biskaborn verfasserin aut Rainer Gersonde verfasserin aut Lester Lembke-Jene verfasserin aut Gerrit Lohmann verfasserin aut Gerrit Lohmann verfasserin aut Ralf Tiedemann verfasserin aut Ralf Tiedemann verfasserin aut Bernhard Diekmann verfasserin aut Bernhard Diekmann verfasserin aut In Frontiers in Earth Science Frontiers Media S.A., 2014 9(2021) (DE-627)771399731 (DE-600)2741235-0 22966463 nnns volume:9 year:2021 https://doi.org/10.3389/feart.2021.712415 kostenfrei https://doaj.org/article/da33cf072f2e433a837342905a4e7119 kostenfrei https://www.frontiersin.org/articles/10.3389/feart.2021.712415/full kostenfrei https://doaj.org/toc/2296-6463 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2021
language	English
source	In Frontiers in Earth Science 9(2021) volume:9 year:2021
sourceStr	In Frontiers in Earth Science 9(2021) volume:9 year:2021
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	North Pacific terrigenous sediments heinrich event brooks range deglaciation meltwater Science Q
isfreeaccess_bool	true
container_title	Frontiers in Earth Science
authorswithroles_txt_mv	Rong Wang @@aut@@ Gerhard Kuhn @@aut@@ Xun Gong @@aut@@ Boris K. Biskaborn @@aut@@ Rainer Gersonde @@aut@@ Lester Lembke-Jene @@aut@@ Gerrit Lohmann @@aut@@ Ralf Tiedemann @@aut@@ Bernhard Diekmann @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	771399731
id	DOAJ06061434X
language_de	englisch
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author	Rong Wang
spellingShingle	Rong Wang misc North Pacific misc terrigenous sediments misc heinrich event misc brooks range misc deglaciation misc meltwater misc Science misc Q Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea
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topic_title	Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea North Pacific terrigenous sediments heinrich event brooks range deglaciation meltwater
topic	misc North Pacific misc terrigenous sediments misc heinrich event misc brooks range misc deglaciation misc meltwater misc Science misc Q
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title	Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea
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title_full	Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea
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author_browse	Rong Wang Gerhard Kuhn Xun Gong Boris K. Biskaborn Rainer Gersonde Lester Lembke-Jene Gerrit Lohmann Ralf Tiedemann Bernhard Diekmann
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title_sort	deglacial land-ocean linkages at the alaskan continental margin in the bering sea
title_auth	Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea
abstract	A marine sediment record from the central Bering Sea, spanning the last 20 thousand years (ka), was studied to unravel the depositional history with regard to terrigenous sediment supply and biogenic sedimentation. Methodic approaches comprised the inference of accumulation rates of siliciclastic and biogenic components, grain-size analysis, and (clay) mineralogy, as well as paleoclimatic modelling. Changes in the depositional history provides insight into land-ocean linkages of paleoenvironmental changes. During the finale of the Last Glacial Maximum, the depositional environment was characterized by hemipelagic background sedimentation. A marked change in the terrigenous sediment provenance during the late Heinrich 1 Stadial (15.7–14.5 ka), indicated by increases in kaolinite and a high glaciofluvial influx of clay, gives evidence of the deglaciation of the Brooks Range in the hinterland of Alaska. This meltwater pulse also stimulated the postglacial onset of biological productivity. Glacial melt implies regional climate warming during a time of widespread cooling on the northern hemisphere. Our simulation experiment with a coupled climate model suggests atmospheric teleconnections to the North Atlantic, with impacts on the dynamics of the Aleutian Low system that gave rise to warmer winters and an early onset of spring during that time. The late deglacial period between 14.5 and 11.0 ka was characterized by enhanced fluvial runoff and biological productivity in the course of climate amelioration, sea-level rise, seasonal sea-ice retreat, and permafrost thaw in the hinterland. The latter processes temporarily stalled during the Younger Dryas stadial (12.9-11.7 ka) and commenced again during the Preboreal (earliest Holocene), after 11.7 ka. High river runoff might have fertilized the Bering Sea and contributed to enhanced upper ocean stratification. Since 11.0 ka, advanced transgression has shifted the coast line and fluvial influence of the Yukon River away from the study site. The opening of the Bering Strait strengthened contour currents along the continental slope, leaving behind winnowed sand-rich sediments through the early to mid-Holocene, with non-deposition occurring since about 6.0 ka.
abstractGer	A marine sediment record from the central Bering Sea, spanning the last 20 thousand years (ka), was studied to unravel the depositional history with regard to terrigenous sediment supply and biogenic sedimentation. Methodic approaches comprised the inference of accumulation rates of siliciclastic and biogenic components, grain-size analysis, and (clay) mineralogy, as well as paleoclimatic modelling. Changes in the depositional history provides insight into land-ocean linkages of paleoenvironmental changes. During the finale of the Last Glacial Maximum, the depositional environment was characterized by hemipelagic background sedimentation. A marked change in the terrigenous sediment provenance during the late Heinrich 1 Stadial (15.7–14.5 ka), indicated by increases in kaolinite and a high glaciofluvial influx of clay, gives evidence of the deglaciation of the Brooks Range in the hinterland of Alaska. This meltwater pulse also stimulated the postglacial onset of biological productivity. Glacial melt implies regional climate warming during a time of widespread cooling on the northern hemisphere. Our simulation experiment with a coupled climate model suggests atmospheric teleconnections to the North Atlantic, with impacts on the dynamics of the Aleutian Low system that gave rise to warmer winters and an early onset of spring during that time. The late deglacial period between 14.5 and 11.0 ka was characterized by enhanced fluvial runoff and biological productivity in the course of climate amelioration, sea-level rise, seasonal sea-ice retreat, and permafrost thaw in the hinterland. The latter processes temporarily stalled during the Younger Dryas stadial (12.9-11.7 ka) and commenced again during the Preboreal (earliest Holocene), after 11.7 ka. High river runoff might have fertilized the Bering Sea and contributed to enhanced upper ocean stratification. Since 11.0 ka, advanced transgression has shifted the coast line and fluvial influence of the Yukon River away from the study site. The opening of the Bering Strait strengthened contour currents along the continental slope, leaving behind winnowed sand-rich sediments through the early to mid-Holocene, with non-deposition occurring since about 6.0 ka.
abstract_unstemmed	A marine sediment record from the central Bering Sea, spanning the last 20 thousand years (ka), was studied to unravel the depositional history with regard to terrigenous sediment supply and biogenic sedimentation. Methodic approaches comprised the inference of accumulation rates of siliciclastic and biogenic components, grain-size analysis, and (clay) mineralogy, as well as paleoclimatic modelling. Changes in the depositional history provides insight into land-ocean linkages of paleoenvironmental changes. During the finale of the Last Glacial Maximum, the depositional environment was characterized by hemipelagic background sedimentation. A marked change in the terrigenous sediment provenance during the late Heinrich 1 Stadial (15.7–14.5 ka), indicated by increases in kaolinite and a high glaciofluvial influx of clay, gives evidence of the deglaciation of the Brooks Range in the hinterland of Alaska. This meltwater pulse also stimulated the postglacial onset of biological productivity. Glacial melt implies regional climate warming during a time of widespread cooling on the northern hemisphere. Our simulation experiment with a coupled climate model suggests atmospheric teleconnections to the North Atlantic, with impacts on the dynamics of the Aleutian Low system that gave rise to warmer winters and an early onset of spring during that time. The late deglacial period between 14.5 and 11.0 ka was characterized by enhanced fluvial runoff and biological productivity in the course of climate amelioration, sea-level rise, seasonal sea-ice retreat, and permafrost thaw in the hinterland. The latter processes temporarily stalled during the Younger Dryas stadial (12.9-11.7 ka) and commenced again during the Preboreal (earliest Holocene), after 11.7 ka. High river runoff might have fertilized the Bering Sea and contributed to enhanced upper ocean stratification. Since 11.0 ka, advanced transgression has shifted the coast line and fluvial influence of the Yukon River away from the study site. The opening of the Bering Strait strengthened contour currents along the continental slope, leaving behind winnowed sand-rich sediments through the early to mid-Holocene, with non-deposition occurring since about 6.0 ka.
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title_short	Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea
url	https://doi.org/10.3389/feart.2021.712415 https://doaj.org/article/da33cf072f2e433a837342905a4e7119 https://www.frontiersin.org/articles/10.3389/feart.2021.712415/full https://doaj.org/toc/2296-6463
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author2	Rong Wang Gerhard Kuhn Xun Gong Boris K. Biskaborn Rainer Gersonde Lester Lembke-Jene Gerrit Lohmann Ralf Tiedemann Bernhard Diekmann
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Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea

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Vorhandene Bände

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