Early Holocene drought in the Laurentian Great Lakes basin caused hydrologic closure of Georgian Bay

McCarthy, Francine M.G.; McAndrews, John H.

doi:10.1007/s10933-010-9410-z

Cited by 19 publications

(10 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Phase 2 pollen assemblages are synchronous with the Lake Stanley lowstand and also recorded along with Phase 2 pollen assemblages are low‐diversity testate amoebae assemblages dominated by Centropyxis species, which are tolerant of brackish conditions. These brackish conditions during the Phase 2 pollen assemblages provided additional evidence of closed basin conditions during the Lake Stanley lowstand (McCarthy & McAndrews, ).…”

Section: Previous Researchmentioning

confidence: 84%

“…(Lewis et al., ). Pollen and testate amoebae analysis from sediment cores in Georgian Bay identified the probable cause of the lowstand event as a combination of isostatic rebound and climatic change, allowing for complete hydrologic closure and separation of Lake Michigan, Lake Huron, and Georgian Bay (Lewis et al., ; McCarthy et al., , ; McCarthy & McAndrews, ). McCarthy et al.…”

Section: Previous Researchmentioning

confidence: 99%

See 1 more Smart Citation

Archaeological Landscapes during the 10–8 ka Lake Stanley Lowstand on the Alpena‐Amberley Ridge, Lake Huron

Sonnenburg

O’Shea

2016

Geoarchaeology

View full text Add to dashboard Cite

Archaeologists have long been interested in the Lake Stanley lowstand event (ß10-8 ka) in the Lake Huron basin, as archaeological sites from the Late Paleoindian/Early Archaic cultural periods were inundated by subsequent high water levels. Recent archaeological and paleoenvironmental investigations of this submerged landscape have documented stone structures that were likely utilized for caribou hunting by these cultural groups during the late Lake Stanley lowstand phase of Lake Huron. In 2011 and 2012, a total of 67 core, sediment, and rock samples were collected in a 50 km 2 area by divers and a ponar sampler deployed from a survey vessel. These samples were analyzed for sediment size, sorting, morphology and source, organic and carbonate content, testate amoebae, and organic materials. A series of indicators, including distinct microfossil assemblages (such as species only found in sphagnum moss and boggy arctic ponds), rooted trees (tamarack and spruce), and charcoal (ca. 8-9000 yr old) reveal a series of microenvironments that are consistent with a subarctic climate. The analysis of the Alpena-Amberley Ridge provides a detailed picture of the environment exploited by ancient peoples during the Lake Stanley lowstand period. The methodologies employed in this study can in turn help identify other unique microregions that may yield more archaeological sites with less obvious archaeological footprints. C 2016 Wiley Periodicals, Inc.

show abstract

Section: Previous Researchmentioning

confidence: 84%

Section: Previous Researchmentioning

confidence: 99%

Archaeological Landscapes during the 10–8 ka Lake Stanley Lowstand on the Alpena‐Amberley Ridge, Lake Huron

Sonnenburg

O’Shea

2016

Geoarchaeology

View full text Add to dashboard Cite

show abstract

“…10-8 ka must have been large and persistent enough to permit surface defl ation. This breakdown of forest resilience is roughly coincident with rapid regional drying (Williams et al, 2010) that culminated with hydrologic closure of the upper Great Lakes (Lewis et al, 2008;Boyd et al, 2010;McCarthy and McAndrews, 2010;Fig. 2C, sites 8-11).…”

Section: Discussionmentioning

confidence: 98%

Drought drove forest decline and dune building in eastern upper Michigan, USA, as the upper Great Lakes became closed basins

Loope¹,

Loope²,

Goble³

et al. 2012

Geology

View full text Add to dashboard Cite

Current models of landscape response to Holocene climate change in midcontinent North America largely reconcile Earth orbital and atmospheric climate forcing with pollen-based forest histories on the east and eolian chronologies in Great Plains grasslands on the west. However, thousands of sand dunes spread across 12,000 km 2 in eastern upper Michigan (EUM), more than 500 km east of the present forest-prairie ecotone, present a challenge to such models. We use 65 optically stimulated luminescence (OSL) ages on quartz sand deposited in silt caps (n = 8) and dunes (n = 57) to document eolian activity in EUM. Dune building was widespread ca. 10-8 ka, indicating a sharp, sustained decline in forest cover during that period. This decline was roughly coincident with hydrologic closure of the upper Great Lakes, but temporally inconsistent with most pollen-based models that imply canopy closure throughout the Holocene. Early Holocene forest openings are rarely recognized in pollen sums from EUM because faint signatures of non-arboreal pollen are largely obscured by abundant and highly mobile pine pollen. Early Holocene spikes in nonarboreal pollen are recorded in cores from small ponds, but suggest only a modest extent of forest openings. OSL dating of dune emplacement provides a direct, spatially explicit archive of greatly diminished forest cover during a very dry climate in eastern midcontinent North America ca. 10-8 ka.on July 13, 2015 geology.gsapubs.org Downloaded from

show abstract

“…The Alpena-Amberley Ridge landform is a bedrock ridge, measuring 125 km in length and 5-15 km wide, that subdivides the Huron basin; its exposure during Lake Stanley/Hough low stands between circa 9900 and 7500 14 C yr BP (circa 11,300-8400 cal yr BP) formed a northwest-southeast trending isthmus that separated Lake Stanley from a smaller unnamed water body to the west (see Figure 7) (Lewis et al 2008;McCarthy and McAndrews 2012;O'Shea et al 2013, 37). Underwater survey of this ridge, using remote submersibles and scuba divers, has identified boulder-constructed drive lane and Vshaped hunting blind features that are identical to those used historically in the arctic and subarctic for terrestrial intercept hunting of migrating caribou.…”

Section: Late Paleoindian Settlementmentioning

confidence: 99%

Early Human Settlement of Northeastern North America

Lothrop

Lowery²,

Spiess

et al. 2016

PaleoAmerica

View full text Add to dashboard Cite

This paper summarizes current evidence for earliest human occupation of northeastern North America during the late Pleistocene and early Holocene. We review evolution of the region's landscapes and evidence of archaeological chronologies as context for understanding human settlement of the region. Current data support limited evidence for pre-Clovis occupation south of the Laurentide glacial margin, followed by a significant temporal gap prior to early Paleoindian settlement of the region. Despite differences in subregional data sets, mapping of site distributions and assemblage data do support the notion of variation in lifeways between Paleoindian populations occupying formerly glaciated parts of the Northeast in the late Pleistocene, versus contemporary groups in lands south of the Laurentide glacial margin. Through time, the greatest differences in Paleoindian land use and technology occur between the Younger Dryas and early Holocene.

show abstract

Early Holocene drought in the Laurentian Great Lakes basin caused hydrologic closure of Georgian Bay

Cited by 19 publications

References 65 publications

Archaeological Landscapes during the 10–8 ka Lake Stanley Lowstand on the Alpena‐Amberley Ridge, Lake Huron

Archaeological Landscapes during the 10–8 ka Lake Stanley Lowstand on the Alpena‐Amberley Ridge, Lake Huron

Drought drove forest decline and dune building in eastern upper Michigan, USA, as the upper Great Lakes became closed basins

Early Human Settlement of Northeastern North America

Contact Info

Product

Resources

About