Increasing chemical weathering in the Himalayan system since the Last Glacial Maximum
نویسندگان
چکیده
منابع مشابه
Enhanced chemical weathering of rocks during the last glacial maximum: a sink for atmospheric CO2?
It has been proposed that increased rates of chemical weathering and the related drawdown of atmospheric CO on the 2 Ž . continents may have at least partly contributed to the low CO concentrations during the last glacial maximum LGM . 2 Variations in continental erosion could thus be one of the driving forces for the glacialrinterglacial climate cycles during Quaternary times. To test such an ...
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The oxidative capacity of past atmospheres is highly uncertain. We present here a new climate–biosphere– chemistry modeling framework to determine oxidant levels in the present and past troposphere. We use the GEOS-Chem chemical transport model driven by meteorological fields from the NASA Goddard Institute of Space Studies (GISS) ModelE, with land cover and fire emissions from dynamic global v...
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Using CHIRP subbottom profiling across the Chukchi shelf, offshore NW Alaska, we observed a large incised valley that measures tens of kilometers in width. The valley appears to have been repeatedly excavated during sea level lowering; however, the two most recent incisions appear to have been downcut during the last sea level rise, suggesting an increase in the volume of discharge. Modern drai...
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Analyzing how climate change affects vegetation distribution is one of the central issues of global change ecology as this has important implications for the carbon budget of terrestrial vegetation. Mapping vegetation distribution under historical climate scenarios is essential for understanding the response of vegetation distribution to future climatic changes. The reconstructions of palaeoveg...
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ژورنال
عنوان ژورنال: Earth and Planetary Science Letters
سال: 2013
ISSN: 0012-821X
DOI: 10.1016/j.epsl.2013.01.038