Dust Transport to the Taylor Glacier, Antarctica, During the Last Interglacial
Changes in the composition of dust trapped in ice provide evidence of past atmospheric circulation and earth surface conditions. Investigations of dust provenance in Antarctic ice during glacial and interglacial periods indicate that South America is the primary dust source during both climate regim...
| Published in: | Geophysical Research Letters |
|---|---|
| Main Authors: | , , , , |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
American Geophysical Union
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/2027.42/148354 https://doi.org/10.1029/2018GL081887 |
| id |
ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/148354 |
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| record_format |
openpolar |
| institution |
Open Polar |
| collection |
University of Michigan: Deep Blue |
| op_collection_id |
ftumdeepblue |
| language |
unknown |
| topic |
last interglacial period climate transitions radiogenic isotopes mineral dust ice cores Geological Sciences Science |
| spellingShingle |
last interglacial period climate transitions radiogenic isotopes mineral dust ice cores Geological Sciences Science Aarons, S. M. Aciego, S. M. McConnell, J. R. Delmonte, B. Baccolo, G. Dust Transport to the Taylor Glacier, Antarctica, During the Last Interglacial |
| topic_facet |
last interglacial period climate transitions radiogenic isotopes mineral dust ice cores Geological Sciences Science |
| description |
Changes in the composition of dust trapped in ice provide evidence of past atmospheric circulation and earth surface conditions. Investigations of dust provenance in Antarctic ice during glacial and interglacial periods indicate that South America is the primary dust source during both climate regimes. Here, we present results from a new ice core dust archive extracted from the Taylor Glacier in coastal East Antarctica during the deglacial transition from Marine Isotope Stage 6 to 5e. Radiogenic strontium and neodymium isotopes indicate that last interglacial dust is young and volcanic, in contrast to the observed preindustrial and Holocene (Marine Isotope Stage 1) dust composition. The dust composition differences from the last interglacial and current interglacial period at the site require a profound difference in atmospheric transport and environmental conditions. We consider several potential causes for enhanced transport of volcanic material to the site, including increased availability of volcanic material and large‐scale atmospheric circulation changes.Plain Language SummaryFluctuations in the isotopic composition of dust particles transported atmospherically and trapped in East Antarctic ice during glacial and interglacial periods provide glimpses into past earth surface conditions and atmospheric dynamics through time. Here we present new ice core records of dust from the Taylor Glacier (Antarctica), extending back to the transition into the last interglacial period (~130,000 years ago). Dust deposited at this site during the last interglacial period has a significantly more volcanic dust composition compared to the current interglacial dust, caused by a pronounced wind direction change and/or increased subaerial exposure of volcanic material. The distinct dust compositions during two separate interglacial periods suggest significant differences in conditions at the dust source areas and atmospheric dynamics to this peripheral Antarctic site.Key PointsLast interglacial dust composition in Taylor ... |
| format |
Article in Journal/Newspaper |
| author |
Aarons, S. M. Aciego, S. M. McConnell, J. R. Delmonte, B. Baccolo, G. |
| author_facet |
Aarons, S. M. Aciego, S. M. McConnell, J. R. Delmonte, B. Baccolo, G. |
| author_sort |
Aarons, S. M. |
| title |
Dust Transport to the Taylor Glacier, Antarctica, During the Last Interglacial |
| title_short |
Dust Transport to the Taylor Glacier, Antarctica, During the Last Interglacial |
| title_full |
Dust Transport to the Taylor Glacier, Antarctica, During the Last Interglacial |
| title_fullStr |
Dust Transport to the Taylor Glacier, Antarctica, During the Last Interglacial |
| title_full_unstemmed |
Dust Transport to the Taylor Glacier, Antarctica, During the Last Interglacial |
| title_sort |
dust transport to the taylor glacier, antarctica, during the last interglacial |
| publisher |
American Geophysical Union |
| publishDate |
2019 |
| url |
https://hdl.handle.net/2027.42/148354 https://doi.org/10.1029/2018GL081887 |
| long_lat |
ENVELOPE(162.167,162.167,-77.733,-77.733) |
| geographic |
Antarctic East Antarctica Taylor Glacier |
| geographic_facet |
Antarctic East Antarctica Taylor Glacier |
| genre |
Antarc* Antarctic Antarctic Science Antarctica Antarctica Journal East Antarctica ice core Taylor Glacier |
| genre_facet |
Antarc* Antarctic Antarctic Science Antarctica Antarctica Journal East Antarctica ice core Taylor Glacier |
| op_relation |
Aarons, S. M.; Aciego, S. M.; McConnell, J. R.; Delmonte, B.; Baccolo, G. (2019). "Dust Transport to the Taylor Glacier, Antarctica, During the Last Interglacial." Geophysical Research Letters 46(4): 2261-2270. 0094-8276 1944-8007 https://hdl.handle.net/2027.42/148354 doi:10.1029/2018GL081887 Geophysical Research Letters Nyland, R. E., Panter, K. S., Rocchi, S., Di Vincenzo, G., Del Carlo, P., Tiepolo, M., Field, B., & Gorsevski, P. ( 2013 ). Volcanic activity and its link to glaciation cycles: Single‐grain age and geochemistry of Early to Middle Miocene volcanic glass from ANDRILL AND‐2A core. Journal of Volcanology and Geothermal Research, 250, 106 – 128. https://doi.org/10.1016/j.jvolgeores.2012.11.008 Panter, K. S., Blusztajn, J., Hart, S., & Kyle, P. ( 1997 ). Late Cretaceous‐Neogene basalts from Chatham Island: Implicatinos for HIMU mantle beneath continental borderlands of the southwest Pacific. In 7th Annual V.M. Goldschmidt Conference (p. 156). Panter, K. S., Hart, S. R., Kyle, P., Blusztanjn, J., & Wilch, T. ( 2000 ). Geochemistry of Late Cenozoic basalts from the Crary Mountains: Characterization of mantle sources in Marie Byrd Land, Antarctica. Chemical Geology, 165 ( 3‐4 ), 215 – 241. https://doi.org/10.1016/S0009‐2541(99)00171‐0 Panter, K. S., Kyle, P. R., & Smellie, J. L. ( 1997 ). Petrogenesis of a phonolite‐trachyte succession at Mount Sidley, Marie Byrd Land, Antarctica. Journal of Petrology, 38, 1225 – 1253. Petit, J. R., Jouzel, J., Raynaud, D., Barkov, N. I., Barnola, J. M., Basile, I., Bender, M., Chappellaz, J., Davis, M., Delaygue, G., Delmotte, M., Kotlyakov, V. M., Legrand, M., Lipenkov, V. Y., Lorius, C., PÉpin, L., Ritz, C., Saltzman, E., & Stievenard, M. ( 1999 ). Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica. Nature, 399 ( 6735 ), 429 – 436. https://doi.org/10.1038/20859 Petrenko, V. V., Severinghaus, J. P., Schaefer, H., Smith, A. M., Kuhl, T., Baggenstos, D., Hua, Q., Brook, E. 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ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/148354 2023-08-20T04:01:47+02:00 Dust Transport to the Taylor Glacier, Antarctica, During the Last Interglacial Aarons, S. M. Aciego, S. M. McConnell, J. R. Delmonte, B. Baccolo, G. 2019-02-28 application/pdf https://hdl.handle.net/2027.42/148354 https://doi.org/10.1029/2018GL081887 unknown American Geophysical Union Wiley Periodicals, Inc. Aarons, S. M.; Aciego, S. M.; McConnell, J. R.; Delmonte, B.; Baccolo, G. (2019). "Dust Transport to the Taylor Glacier, Antarctica, During the Last Interglacial." Geophysical Research Letters 46(4): 2261-2270. 0094-8276 1944-8007 https://hdl.handle.net/2027.42/148354 doi:10.1029/2018GL081887 Geophysical Research Letters Nyland, R. E., Panter, K. S., Rocchi, S., Di Vincenzo, G., Del Carlo, P., Tiepolo, M., Field, B., & Gorsevski, P. ( 2013 ). Volcanic activity and its link to glaciation cycles: Single‐grain age and geochemistry of Early to Middle Miocene volcanic glass from ANDRILL AND‐2A core. Journal of Volcanology and Geothermal Research, 250, 106 – 128. https://doi.org/10.1016/j.jvolgeores.2012.11.008 Panter, K. S., Blusztajn, J., Hart, S., & Kyle, P. ( 1997 ). Late Cretaceous‐Neogene basalts from Chatham Island: Implicatinos for HIMU mantle beneath continental borderlands of the southwest Pacific. In 7th Annual V.M. Goldschmidt Conference (p. 156). Panter, K. S., Hart, S. R., Kyle, P., Blusztanjn, J., & Wilch, T. ( 2000 ). Geochemistry of Late Cenozoic basalts from the Crary Mountains: Characterization of mantle sources in Marie Byrd Land, Antarctica. Chemical Geology, 165 ( 3‐4 ), 215 – 241. https://doi.org/10.1016/S0009‐2541(99)00171‐0 Panter, K. S., Kyle, P. R., & Smellie, J. L. ( 1997 ). Petrogenesis of a phonolite‐trachyte succession at Mount Sidley, Marie Byrd Land, Antarctica. Journal of Petrology, 38, 1225 – 1253. Petit, J. R., Jouzel, J., Raynaud, D., Barkov, N. I., Barnola, J. M., Basile, I., Bender, M., Chappellaz, J., Davis, M., Delaygue, G., Delmotte, M., Kotlyakov, V. M., Legrand, M., Lipenkov, V. Y., Lorius, C., PÉpin, L., Ritz, C., Saltzman, E., & Stievenard, M. ( 1999 ). Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica. Nature, 399 ( 6735 ), 429 – 436. https://doi.org/10.1038/20859 Petrenko, V. V., Severinghaus, J. P., Schaefer, H., Smith, A. M., Kuhl, T., Baggenstos, D., Hua, Q., Brook, E. J., Rose, P., Kulin, R., Bauska, T., Harth, C., Buizert, C., Orsi, A., Emanuele, G., Lee, J. E., Brailsford, G., Keeling, R., & Weiss, R. F. ( 2016 ). Measurements of 14C in ancient ice from Taylor Glacier, Antarctica constrain in situ cosmogenic 14CH4 and 14CO production rates. Geochimica et Cosmochimica Acta, 177, 62 – 77. https://doi.org/10.1016/hj.gca.2016.01.004 Scarchilli, C. ( 2007 ). Precipitation and sublimation impact on snow accumulation over Antarctica. Siena, Italy: University of Siena. 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B.P.: Isotopic constraints on origins. Earth and Planetary Science Letters, 111 ( 1 ), 175 – 182. https://doi.org/10.1016/0012‐821X(92)90177‐W IndexNoFollow last interglacial period climate transitions radiogenic isotopes mineral dust ice cores Geological Sciences Science Article 2019 ftumdeepblue https://doi.org/10.1029/2018GL08188710.1007/s00445‐002‐0204‐710.1029/1999RG90000710.1029/JB086iB11p1047010.1038/nature0530110.1038/364203a010.1038/271321a0 2023-07-31T20:30:08Z Changes in the composition of dust trapped in ice provide evidence of past atmospheric circulation and earth surface conditions. Investigations of dust provenance in Antarctic ice during glacial and interglacial periods indicate that South America is the primary dust source during both climate regimes. Here, we present results from a new ice core dust archive extracted from the Taylor Glacier in coastal East Antarctica during the deglacial transition from Marine Isotope Stage 6 to 5e. Radiogenic strontium and neodymium isotopes indicate that last interglacial dust is young and volcanic, in contrast to the observed preindustrial and Holocene (Marine Isotope Stage 1) dust composition. The dust composition differences from the last interglacial and current interglacial period at the site require a profound difference in atmospheric transport and environmental conditions. We consider several potential causes for enhanced transport of volcanic material to the site, including increased availability of volcanic material and large‐scale atmospheric circulation changes.Plain Language SummaryFluctuations in the isotopic composition of dust particles transported atmospherically and trapped in East Antarctic ice during glacial and interglacial periods provide glimpses into past earth surface conditions and atmospheric dynamics through time. Here we present new ice core records of dust from the Taylor Glacier (Antarctica), extending back to the transition into the last interglacial period (~130,000 years ago). Dust deposited at this site during the last interglacial period has a significantly more volcanic dust composition compared to the current interglacial dust, caused by a pronounced wind direction change and/or increased subaerial exposure of volcanic material. The distinct dust compositions during two separate interglacial periods suggest significant differences in conditions at the dust source areas and atmospheric dynamics to this peripheral Antarctic site.Key PointsLast interglacial dust composition in Taylor ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica Antarctica Journal East Antarctica ice core Taylor Glacier University of Michigan: Deep Blue Antarctic East Antarctica Taylor Glacier ENVELOPE(162.167,162.167,-77.733,-77.733) Geophysical Research Letters 46 4 2261 2270 |