Changes in solar activity and Holocene climatic shifts derived from C-14 wiggle-match dated peat deposits

D. Mauquoy, B. Van Geel, Maarten Blaauw, A. Speranza, J. Van Der Plicht

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

Closely spaced sequences of accelerator mass spectrometer (AMS) C-14 dates of peat deposits display century-scale wiggles which can be fitted to the radiocarbon calibration curve. By wiggle-matching such sequences, high-precision calendar age chronologies can be generated which show that changes in mire surface wetness during the Bronze Age/Iron Age transition (c. 850 cal. BC) and the 'Little Ice Age' (Wolf, Sporer, Maunder and Dalton Minima) occurred during periods of suddenly increasing atmospheric concentration of C-14. Replicate evidence from peat-based proxy climate indicators in northwest Europe suggest these changes in climate may have been driven by temporary declines of solar activity. Carbon-accumulation rates of two raised peat bogs in the UK and Denmark record low values during the 'Little Ice Age' which reflects reduced primary productivity of the peat-forming vegetation during these periods of climatic deterioration.
Original languageEnglish
Pages (from-to)45-52
Number of pages8
JournalThe Holocene
Volume14
DOIs
Publication statusPublished - 2004

Fingerprint Dive into the research topics of 'Changes in solar activity and Holocene climatic shifts derived from C-14 wiggle-match dated peat deposits'. Together they form a unique fingerprint.

Cite this