14C measurements of dissolved inorganic and organic carbon in Qinghai Lake and inflowing rivers (Ne Tibet, Qinghai Plateau), China

A. J.T. Jull, G. S. Burr, W. Zhou, P. Cheng, S. H. Song, A. G. Leonard, L. Cheng, Z. S. An

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

There have been a number of studies that have attempted to estimate the past radiocarbon reservoir effects in Qinghai Lake, China. This article reports on measurements on modern samples collected at the lake in October 2003 and October 2009, which allow us to better understand the systematics of the lake and shed new insights on the processes occurring in the lake. The results indicate that atmospheric exchange of 14C is the main process affecting surface dissolved inorganic carbon (DIC) in the lake, but dissolved organic carbon (DOC) can be explained as a combination of sources. We also conclude that sediment carbon can be explained by a model where input from the surrounding rivers and groundwater are important, in agreement with the model of Yu et al. (2007).

Original languageEnglish (US)
Pages (from-to)1115-1127
Number of pages13
JournalRadiocarbon
Volume56
Issue number3
DOIs
StatePublished - 2014

ASJC Scopus subject areas

  • Archaeology
  • Earth and Planetary Sciences(all)

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