TY - JOUR T1 - Towards a precise timing of groundwater use in the lower Yellow River area during the late Bronze age: Bayesian inference from the radiocarbon ages of ancient water wells at the Liang'ercun site, north China JF - Quaternary Geochronology Y1 - 2021 A1 - Yu, Shi-Yong A1 - Chen, Xuexiang A1 - Fang, Zhen A1 - Liu, Xiuling A1 - Li, Ming A1 - Guo, Junfeng KW - Geography KW - Multidisciplinary KW - Physical Geosciences VL - 66 UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000684185400002?AlertId=4d48b20a-7d27-4fa2-a6a8-37f0daa89864&SID=D6BWyCypH7Akklkv5hy ER - TY - JOUR T1 - Radiocarbon Dating of Basal Peats Supports Separation of Lake Superior from Lakes Michigan-Huron about 1250 years ago JF - Earth and Planetary Science Letters Y1 - 2013 A1 - Yu, Shi-Yong A1 - Colman, Steven M. A1 - Milne, Glenn A. AB - Lake Superior represents an important component of the aquatic ecosystem in North America. Along its south shore, ongoing lake-level rise, accelerated erosion, and wetland loss are major environmental concerns to coastal communities. A better prediction of the future of this shore requires placing the instrumental lake-level records in a geological context. However, our knowledge of the late-Holocene history of the world's largest freshwater body remains fragmentary. Here we present a sedimentary record of late-Holocene relative lake-level changes by dating transgressive basal peats resting directly on a sandy substrate along a bathymetric gradient in Bark Bay Slough, Wisconsin. Our record shows a moderate lake-level rise at 1.4±0.2 mm/yr from about 2200 to 1250 cal yr BP as a result of relatively slow differential uplift of Bark Bay relative to the controlling outlet at Port Huron. The rise accelerated to 2.3±0.2 mm/yr at about 1250 cal yr BP when Sault Ste. Marie emerged as the controlling outlet, thereby separating Superior from Lakes Michigan–Huron and giving rise to the modern hydrographic regime of the upper Great Lakes. The timing of this event in our record is about 1000 yr later than that estimated in most previous studies, but our data complement and confirm the younger age of lake separation inferred using a different methodology. Our results not only provide pertinent information for hydrological regulation, navigation operation, and infrastructural design in the upper Great Lakes, but also provide insight into freshwater wetland succession on flooded coasts. VL - 375 UR - http://www.sciencedirect.com/science/article/pii/S0012821X13003129 JO - Radiocarbon Dating of Basal Peats Supports Separation of Lake Superior from Lakes Michigan-Huron about 1250 years ago ER - TY - JOUR T1 - Separation of Lake Superior from Lakes Michigan–Huron about 1250 yr ago JF - Earth and Planetary Science Letters Y1 - 2013 A1 - Yu, Shi-Yong A1 - Colman, Steven M. A1 - Milne, Glenn A. AB - Lake Superior represents an important component of the aquatic ecosystem in North America. Along its south shore, ongoing lake-level rise, accelerated erosion, and wetland loss are major environmental concerns to coastal communities. A better prediction of the future of this shore requires placing the instrumental lake-level records in a geological context. However, our knowledge of the late-Holocene history of the world's largest freshwater body remains fragmentary. Here we present a sedimentary record of late-Holocene relative lake-level changes by dating transgressive basal peats resting directly on a sandy substrate along a bathymetric gradient in Bark Bay Slough, Wisconsin. Our record shows a moderate lake-level rise at 1.4±0.2 mm/yr from about 2200 to 1250 cal yr BP as a result of relatively slow differential uplift of Bark Bay relative to the controlling outlet at Port Huron. The rise accelerated to 2.3±0.2 mm/yr at about 1250 cal yr BP when Sault Ste. Marie emerged as the controlling outlet, thereby separating Superior from Lakes Michigan–Huron and giving rise to the modern hydrographic regime of the upper Great Lakes. The timing of this event in our record is about 1000 yr later than that postulated in most previous studies. Our results not only provide pertinent information for hydrological regulation, navigation operation, and infrastructural design in the upper Great Lakes, but also provide insight into freshwater wetland succession on flooded coasts. VL - 375 N1 - id: 2336 JO - Separation of Lake Superior from Lakes Michigan–Huron about 1250 yr ago ER - TY - JOUR T1 - Freshwater Outburst from Lake Superior as a Trigger for the Cold Event 9300 Years Ago JF - Science Y1 - 2010 A1 - Yu, Shi-Yong A1 - Colman, Steven M. A1 - Lowell, Thomas V. A1 - Milne, Glenn A. A1 - Fisher, Timothy G. A1 - Breckenridge, Andy A1 - Boyd, Matthew A1 - Teller, James T. AB - Paleoclimate proxy records reveal a pervasive cooling event with a Northern Hemispheric extent similar to 9300 years ago. Coeval changes in the oceanic circulation of the North Atlantic imply freshwater forcing. However, the source, magnitude, and routing of meltwater have remained unknown. Located in central North America, Lake Superior is a key site for regulating the outflow of glacial meltwater to the oceans. Here, we show evidence for an similar to 45-meter rapid lake-level fall in this basin, centered on 9300 calibrated years before the present, due to the failure of a glacial drift dam on the southeast corner of the lake. We ascribe the widespread climate anomaly similar to 9300 years ago to this freshwater outburst delivered to the North Atlantic Ocean through the Lake Huron-North Bay-Ottawa River-St. Lawrence River valleys. VL - 328 IS - 5983 N1 - id: 1950; PT: J; UT: WOS:000278318600030 JO - Freshwater Outburst from Lake Superior as a Trigger for the Cold Event 9300 Years Ago ER -