Chronological Discord Between the Last Interglacial Paleosol (S1) and its Parent Material in the Chinese Loess Plateau
An and Porter (Geology 25 (1997) 603) reported six high dust-influx events of millennial timescales recovered from the last interglacial paleosol S1 and correlated them to six cool events of millennial timescale in the North Atlantic. However, the complexity of soil-forming processes may have made t...
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ftmontclairstuni:oai:digitalcommons.montclair.edu:earth-environ-studies-facpubs-1207 2023-07-23T04:20:37+02:00 Chronological Discord Between the Last Interglacial Paleosol (S1) and its Parent Material in the Chinese Loess Plateau Feng, Z. D. Wang, H. B. Olson, C. Pope, Greg Chen, F. H. Zhang, J. W. An, C. B. 2004-01-01T08:00:00Z https://digitalcommons.montclair.edu/earth-environ-studies-facpubs/208 https://doi.org/10.1016/S1040-6182(03)00112-5 unknown Montclair State University Digital Commons https://digitalcommons.montclair.edu/earth-environ-studies-facpubs/208 doi:10.1016/S1040-6182(03)00112-5 Department of Earth and Environmental Studies Faculty Scholarship and Creative Works text 2004 ftmontclairstuni https://doi.org/10.1016/S1040-6182(03)00112-5 2023-07-03T21:48:13Z An and Porter (Geology 25 (1997) 603) reported six high dust-influx events of millennial timescales recovered from the last interglacial paleosol S1 and correlated them to six cool events of millennial timescale in the North Atlantic. However, the complexity of soil-forming processes may have made the chronological correlation with the North Atlantic records inadequate. To examine the complexity of the S1 formation, the S1 paleosol was traced laterally and identified based on the preserved characteristics observed in the field and analyzed in the laboratory. Our data show that from the northwest to the southeast, the S1 paleosol gradually converges from three distinctive soil profiles into a single welded profile because the net rate of loess accumulation was attenuated to the southeast and pedogenic development intensified southeastward during the last interglacial. Three soil-forming events within the S1 paleosol (S1S1, S1S2 and S1S3) separated by two loess units (S1L1 and S1L2) in the northwestern part of the Loess Plateau are stratigraphically coeval with a single soil profile in the southeastern margin of the Loess Plateau. In the southeast, the S1 paleosol developed into underlying older loess L2 (e.g., at the Lantian section). The three paleosols (S1S1, S1S2 and S1S3) are partially welded in the central part of the Chinese Loess Plateau (e.g., at the Tianshui section), where the lower portion of S1 paleosol developed in the underlying older loess unit L2. In the northwestern margin of the Chinese Loess Plateau (e.g., at the Lanzhou section), the preservation of the repeating soil-loess sequence (S1S1, S1L1, S1S2, S1L2 and S1S3) continuously documented the climatic events of the last interglacial. Our data also show that the magnetic signatures and particle-size information are more or less acceptable climatic proxies only for the northwestern sections, where the degree of pedogenesis was lower and the rate of eolian influx was greater during the last interglacial. It appears that in all cases ... Text North Atlantic Montclair State University Digital Commons Quaternary International 117 1 17 26 |
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Montclair State University Digital Commons |
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An and Porter (Geology 25 (1997) 603) reported six high dust-influx events of millennial timescales recovered from the last interglacial paleosol S1 and correlated them to six cool events of millennial timescale in the North Atlantic. However, the complexity of soil-forming processes may have made the chronological correlation with the North Atlantic records inadequate. To examine the complexity of the S1 formation, the S1 paleosol was traced laterally and identified based on the preserved characteristics observed in the field and analyzed in the laboratory. Our data show that from the northwest to the southeast, the S1 paleosol gradually converges from three distinctive soil profiles into a single welded profile because the net rate of loess accumulation was attenuated to the southeast and pedogenic development intensified southeastward during the last interglacial. Three soil-forming events within the S1 paleosol (S1S1, S1S2 and S1S3) separated by two loess units (S1L1 and S1L2) in the northwestern part of the Loess Plateau are stratigraphically coeval with a single soil profile in the southeastern margin of the Loess Plateau. In the southeast, the S1 paleosol developed into underlying older loess L2 (e.g., at the Lantian section). The three paleosols (S1S1, S1S2 and S1S3) are partially welded in the central part of the Chinese Loess Plateau (e.g., at the Tianshui section), where the lower portion of S1 paleosol developed in the underlying older loess unit L2. In the northwestern margin of the Chinese Loess Plateau (e.g., at the Lanzhou section), the preservation of the repeating soil-loess sequence (S1S1, S1L1, S1S2, S1L2 and S1S3) continuously documented the climatic events of the last interglacial. Our data also show that the magnetic signatures and particle-size information are more or less acceptable climatic proxies only for the northwestern sections, where the degree of pedogenesis was lower and the rate of eolian influx was greater during the last interglacial. It appears that in all cases ... |
format |
Text |
author |
Feng, Z. D. Wang, H. B. Olson, C. Pope, Greg Chen, F. H. Zhang, J. W. An, C. B. |
spellingShingle |
Feng, Z. D. Wang, H. B. Olson, C. Pope, Greg Chen, F. H. Zhang, J. W. An, C. B. Chronological Discord Between the Last Interglacial Paleosol (S1) and its Parent Material in the Chinese Loess Plateau |
author_facet |
Feng, Z. D. Wang, H. B. Olson, C. Pope, Greg Chen, F. H. Zhang, J. W. An, C. B. |
author_sort |
Feng, Z. D. |
title |
Chronological Discord Between the Last Interglacial Paleosol (S1) and its Parent Material in the Chinese Loess Plateau |
title_short |
Chronological Discord Between the Last Interglacial Paleosol (S1) and its Parent Material in the Chinese Loess Plateau |
title_full |
Chronological Discord Between the Last Interglacial Paleosol (S1) and its Parent Material in the Chinese Loess Plateau |
title_fullStr |
Chronological Discord Between the Last Interglacial Paleosol (S1) and its Parent Material in the Chinese Loess Plateau |
title_full_unstemmed |
Chronological Discord Between the Last Interglacial Paleosol (S1) and its Parent Material in the Chinese Loess Plateau |
title_sort |
chronological discord between the last interglacial paleosol (s1) and its parent material in the chinese loess plateau |
publisher |
Montclair State University Digital Commons |
publishDate |
2004 |
url |
https://digitalcommons.montclair.edu/earth-environ-studies-facpubs/208 https://doi.org/10.1016/S1040-6182(03)00112-5 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works |
op_relation |
https://digitalcommons.montclair.edu/earth-environ-studies-facpubs/208 doi:10.1016/S1040-6182(03)00112-5 |
op_doi |
https://doi.org/10.1016/S1040-6182(03)00112-5 |
container_title |
Quaternary International |
container_volume |
117 |
container_issue |
1 |
container_start_page |
17 |
op_container_end_page |
26 |
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1772185150643240960 |