A late Pleistocene-Holocene noble gas paleotemperature record in southern Michigan
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منابع مشابه
A late Pleistocene–Holocene noble gas paleotemperature record in southern Michigan
[1] Noble gas temperatures (NGTs) and C derived ages in groundwaters of the Michigan Basin reveal a ground temperature of 1 C toward the end of the Last Glacial Maximum (LGM) suggesting that groundwater recharge occurred under the Laurentide Ice Sheet (LIS) cover. In addition to the general warming observed since the LGM, the NGT record indicates an abrupt warming event between 12.8 and 11.1kyr...
متن کاملNoble gases and stable isotopes in a shallow aquifer in southern Michigan: Implications for noble gas paleotemperature reconstructions for cool climates
[1] Noble gas data from the Glacial Drift, the shallowest aquifer in southern Michigan confirm findings by Ma et al. (2004) that modern noble gas temperatures (NGTs) are systematically below the current mean annual air temperature (MAAT) which, in turn, is similar to the ground temperature of these recharge waters. By tracking noble gas concentrations as well as stable isotope ratios through an...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2004
ISSN: 0094-8276
DOI: 10.1029/2004gl021766