A multiproxy environmental investigation of Holocene wood from a submerged conifer forest in Lake Huron, USA

R. Douglas Hunter, Irina P. Panyushkina, Steven Leavitt, Alex C. Wiedenhoeft, John Zawiskie

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Remains of a Holocene drowned forest in southern Lake Huron discovered in 12.5 m of water (164 m above sea level), 4.5 km east of Lexington, Michigan USA (Sanilac site), provided wood to investigate environment and lake history using several proxies. Macrofossil evidence indicates a forest comprised primarily of conifers equivalent to the modern "rich conifer swamp" community, despite generally low regional abundance of these species in pollen records. Ages range from 7095 ± 50 to 6420 ± 70 14C yr BP, but the clustering of stump dates and the development of 2 floating tree-ring chronologies suggest a briefer forest interval of no more than c. 400 years. Dendrochronological analysis indicates an environment with high inter-annual climate variability. Stable-carbon isotope composition falls within the range of modern trees from this region, but the stable-oxygen composition is consistent with warmer conditions than today. Both our tree-ring and isotope data provide support for a warmer environment in this region, consistent with a mid-Holocene thermal maximum. This drowned forest also provides a dated elevation in the Nipissing transgression at about 6420 14C yr BP (7350 cal yr BP) in the southern Lake Huron basin, a few hundred years before reopening of the St. Clair River drainage.

Original languageEnglish (US)
Pages (from-to)67-77
Number of pages11
JournalQuaternary Research
Volume66
Issue number1
DOIs
StatePublished - Jul 2006

Fingerprint

coniferous tree
Holocene
lake
tree ring
Hypsithermal
swamp
transgression
carbon isotope
chronology
stable isotope
pollen
sea level
isotope
drainage
oxygen
Wood
Conifers
climate
history
river

Keywords

  • Holocene
  • Lake Huron
  • Lake levels
  • Lake Stanley
  • Stable isotopes
  • Thuja
  • Tree rings

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Earth and Planetary Sciences(all)

Cite this

A multiproxy environmental investigation of Holocene wood from a submerged conifer forest in Lake Huron, USA. / Hunter, R. Douglas; Panyushkina, Irina P.; Leavitt, Steven; Wiedenhoeft, Alex C.; Zawiskie, John.

In: Quaternary Research, Vol. 66, No. 1, 07.2006, p. 67-77.

Research output: Contribution to journalArticle

Hunter, R. Douglas ; Panyushkina, Irina P. ; Leavitt, Steven ; Wiedenhoeft, Alex C. ; Zawiskie, John. / A multiproxy environmental investigation of Holocene wood from a submerged conifer forest in Lake Huron, USA. In: Quaternary Research. 2006 ; Vol. 66, No. 1. pp. 67-77.
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