+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Chemostratigraphy of the late Pleistocene to Holocene transition in the central Great Plains



Chemostratigraphy of the late Pleistocene to Holocene transition in the central Great Plains



Geological Society of America 40.6



Newly-derived, detailed numerical age control (14 C & OSL) indicate that the Brady Soil of the late Pleistocene to Holocene transition in the central Great Plains developed from about 14.5 to 10 ka. Notably, the Chronozone of the Younger Dryas (YD) climatic event ( approximately 12.9-11.6 ka) was coeval with only the middle of this major pedogenic interval. High-resolution stable C data (delta13 C) from several profiles in the Wauneta study area of southwestern Nebraska were derived in an attempt to detect a YD signal, if such existed. Stable C analyses were conducted on total SOM, as well as on the fulvic acid, humin, and humic acid constituents. All lines of SOM isotope data exhibit a retardation of the emergence of the C4 grassland during the YD event. Data from the various organic constituents mirror that of the total SOM signal, and, in some instances, further articulate and enhance the apparent impact of the YD climatic event. Because the Brady Soil was an upward building soil, organic C content also exhibits sensitivity to the YD, which was characterized by decreased organic C accumulation. This investigation demonstrates the utility of a detailed chemostratigraphic approach to deciphering the impact of the YD climatic event on progressive post-glacial development of the mixed and warm-season grasslands of the region.

Accession: 037016559

Download citation: RISBibTeXText


Related references

Alluvial paleosols and the Pleistocene-Holocene transition of the central Great Plains, USA. Program and Abstracts - American Quaternary Association. Conference 20, 2008

Loess record of the Pleistocene-Holocene transition on the Northern and central Great Plains, USA. Quaternary Science Reviews 27.17-18, 2008

Isotopic and rock magnetic expression of environmental changes at the Pleistocene-Holocene transition in the central Great Plains. Quaternary International 67: 89-106, 2000

Late Pleistocene and Holocene eolian stratigraphy of the central Great Plains and paleoclimatic reconstructions. Abstracts with Programs - Geological Society of America 23(5): 284, 1991

Resource structure and diet breadth at late paleoindian sites during Pleistocene-Holocene transition; a view from the Great Plains and Southeast. Bulletin - Southern California Academy of Sciences 110.2, 2011

Soil biota communitys response to C3-C4 transition in the Brady Soil, central Great Plains, Pleistocene-Holocene transition. Geological Society of America 42.5, 2010

SOM- and bone-derived isotopic signals as proxies of late Pleistocene and Holocene climatic conditions in the central Great Plains, USA. Congress of the International Union for Quaternary Research 16(Pages 203-204, 2003

Late Pleistocene to early Holocene climatic change recorded in fill of a dissolution collapse feature within the Central Great Plains. Abstracts with Programs - Geological Society of America 37(7): 426, 2005

Evidence for dramatic environmental change derived from the late Pleistocene-early Holocene Brady soil of the central Great Plains. Program and Abstracts - American Quaternary Association Conference, 1998

Loess chrono- and chemostratigraphy of the last glacial-interglacial transition on the central and Northern Great Plains, USA. Program and Abstracts - American Quaternary Association. Conference 20, 2008

Late Pleistocene and Holocene bison on the northern Great Plains. Program and Abstracts American Quaternary Association: rence. 5, Pages 97. 1978., 1978

Human occupations across the Pleistocene-Holocene transition on the Great Plains; geomorphic and regional patterns. Abstracts with Programs - Geological Society of America 33(6): 287, 2001

Responses of Great Plains eolian systems to climate changes of the late Pleistocene and Holocene. Program and Abstracts - American Quaternary Association Conference, 1996

Pleistocene faunal provinces and Holocene biomes of the central Great Plains. Guidebook Series - Kansas Geological Survey 5: 159-165, 1987

The Brady geosol as an indicator of the Pleistocene/ Holocene boundary in the central Great Plains. Program and Abstracts - American Quaternary Association Conference, 1992