Holocene lake-level fluctuations and beach-ridge development along the northern shore of Lake Michigan, USA

1996 ◽  
Vol 15 (2) ◽  
Author(s):  
WilliamH. Petty ◽  
PaulA. Delcourt ◽  
HazelR. Delcourt
Keyword(s):  
Lake Level ◽  
Lake Michigan ◽  
Beach Ridge ◽  
Lake Level Fluctuations ◽  
Northern Shore

AMS Radiocarbon Dating of Lake Michigan Beach-Ridge and Dune Development

1997 ◽  
Vol 48 (1) ◽  
pp. 137-140 ◽  
Author(s):  
John Lichter
Keyword(s):  
Radiocarbon Dating ◽  
Lake Level ◽  
Sand Dune ◽  
Lake Michigan ◽  
Beach Ridge ◽  
Radiocarbon Dates ◽  
Beach Ridges ◽  
Ams Radiocarbon Dating ◽  
Climate Fluctuations ◽  
Radiocarbon Chronology

Strandplains of shore-parallel beach ridges bordering the Great Lakes are valuable for reconstructing histories of climate-related lake-level fluctuations. However, imprecise radiocarbon dates of ridge formation have frustrated development of dependable chronologies from which information about variation in the frequency of ridge formation and inferred climate fluctuations can be obtained. The resolution and precision of radiocarbon chronologies can be improved with AMS 14C dates of roots and rhizomes of plant species associated with the formation and growth of the sand-dune caps of breach ridges. These dates reliably estimate the timing of shore progradation when the base of the previously established beach ridge becomes inundated by the water table. An AMS radiocarbon chronology of beach-ridge formation in northern Lake Michigan shows that information about variation in the frequency of ridge formation is important for paleoclimatic interpretation.

scholarly journals Late Pleistocene and Holocene geomorphologic evolution of Laguna Las Vueltas area, Tierra del Fuego (Argentina)

2020 ◽  
Vol 47 (1) ◽  
pp. 61 ◽  
Author(s):  
Alejandro Montes ◽  
Fernando Santiago ◽  
Mónica Salemme ◽  
Ramiro López
Keyword(s):  
Late Pleistocene ◽  
Tidal Flat ◽  
Lake Level ◽  
Tierra Del Fuego ◽  
Beach Ridge ◽  
Marine Transgression ◽  
Lake Level Fluctuations ◽  
The Past ◽  
Subaerial Exposure ◽  
Geomorphologic Evolution

Laguna Las Vueltas (LLV) area retains the morphology of a late Pleistocene watershed that was flooded during a mid-Holocene marine transgression. Sediments associated with a paleosol dated at 22,582 cal yr BP reflect subaerial exposure of the area prior to the submergence during the marine transgression. This transgression produced an extensive tidal flat near the mouth of the former LLV watershed by 7,477 cal yr BP. Subsequent decoupling of the Las Vueltas valley from the sea occurred through the growth of a baymouth barrier and a beach-ridge plain to the east. This decoupling turned the lagoon into a pan environment in which subsequent lake-level fluctuations were controlled by climate. A lunette dune developed at the pans in the former lagoon, providing a narrow corridor where humans trapped, killed and processed guanacos as early as 3,402 cal yr BP. Changes in aeolian sedimentation hint at increased aridity during the past 500 years.

scholarly journals Lake Level Fluctuations Boost Toxic Cyanobacterial “Oligotrophic Blooms”

PLoS ONE ◽  
2014 ◽  
Vol 9 (10) ◽  
pp. e109526 ◽  
Author(s):  
Cristiana Callieri ◽  
Roberto Bertoni ◽  
Mario Contesini ◽  
Filippo Bertoni
Keyword(s):  
Lake Level ◽  
Lake Level Fluctuations

Glacial-Lake Outburst Erosion of the Grand Valley, Michigan, and Impacts on Glacial Lakes in the Lake Michigan Basin

1993 ◽  
Vol 39 (1) ◽  
pp. 36-44 ◽  
Author(s):  
Alan E. Kehew
Keyword(s):  
Lake Level ◽  
Lake Michigan ◽  
Laurentide Ice Sheet ◽  
Glacial Lake ◽  
Michigan Basin ◽  
Lake Agassiz ◽  
Lake Algonquin ◽  
Lake Michigan Lobe ◽  
Possible Cause ◽  
Glacial Lake Algonquin

AbstractGeomorphic and sedimentologic evidence in the Grand Valley, which drained the retreating Saginaw Lobe of the Laurentide Ice Sheet and later acted as a spillway between lakes in the Huron and Erie basins and in the Michigan basin, suggests that at least one drainage event from glacial Lake Saginaw to glacial Lake Chicago was a catastrophic outburst that deeply incised the valley. Analysis of shoreline and outlet geomorphology at the Chicago outlet supports J H Bretz's hypothesis of episodic incision and lake-level change. Shoreline features of each lake level converge to separate outlet sills that decrease in elevation from the oldest to youngest lake phases. This evidence, coupled with the presence of boulder lags and other features consistent with outburst origin, suggests that the outlets were deepened by catastrophic outbursts at least twice. The first incision event is correlated with a linked series of floods that progressed from Huron and Erie basin lakes to glacial Lake Saginaw to glacial Lake Chicago and then to the Mississippi. The second downcutting event occurred after the Two Rivers Advance of the Lake Michigan Lobe. Outbursts from the eastern outlets of glacial Lake Agassiz to glacial Lake Algonquin are a possible cause for this period of downcutting at the Chicago outlets.

scholarly journals Optical Stimulation Luminescence Dating of Deltas Revealed the Early to Mid-Holocene Lake-level Fluctuations of Daihai, Inner Mongolia, Northern China

2021 ◽  
Vol 9 ◽  
Author(s):  
Shixin Huang ◽  
Xi Chun
Keyword(s):  
Lake Level ◽  
Climate Changes ◽  
Asian Summer Monsoon ◽  
Regional Climate ◽  
Lacustrine Sediments ◽  
Northern China ◽  
Luminescence Dating ◽  
Lake Area ◽  
Monsoon Precipitation ◽  
Lake Level Fluctuations

Lake-level reconstruction of inland enclosed lakes especially for monsoon-sensitive areas is of great significance to reveal regional climate changes. Daihai, a typical enclosed lake at the marginal of the East Asian summer monsoon (EASM) area in north China, is sensitive to climate changes due to its unique regional characteristics. There were a series of lakeshore terraces, highstand lacustrine sediments, and braided river deltas, providing sufficient geomorphologic and stratigraphic evidence for the reconstruction of lake-level fluctuations of Daihai. Reconstructed lake-level variations during the early and mid-Holocene were constructed based on 22 quartz optical stimulated luminescence (OSL) ages from six well-preserved profiles around Daihai Basin. Our results indicated Daihai showed a relatively low level at 10.2 ka, and a gradually increasing lake level following the enhanced monsoon precipitation during the mid-Holocene. Specifically, the high lake level began to develop at 8.1 ka and reached the maximum at 5.2 ka, with ∼40 m higher than present. At this time, the lake area expanded to ∼400 km2, approximately six times as large as that of present, corresponding to the maximum monsoon precipitation and intensity of EASM during the mid-Holocene. However, our stratigraphic records showed a part of the depositional records in the north and east of the Daihai was missed after 5.2 ka, probably indicating a sudden drop of the Daihai lake level. These rapid level fluctuations were likely to be interpreted by some local scenarios and need to be further investigated in the future. Overall, the lake-level fluctuation of Daihai during the early and mid-Holocene was slightly different from that observed in the previously published regional records. Possibly, the interaction of the EASM and regional feedback from topography, and hydrology factors might have contributed to the spatial complexity and distinction.

Sign in / Sign up

Export Citation Format

Share Document