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  1. University of Mandalay
  2. Department of Physics

Hydrological processes at Inle Lake (Southern Shan State, Myanmar) inferred from hydrochemical, mineralogical and isotopic data

http://hdl.handle.net/20.500.12678/0000002958
http://hdl.handle.net/20.500.12678/0000002958
5b401d88-b6ba-4b92-993f-2664ded9fe52
30328c29-5ef3-4862-8a0e-7e743f4b92b0
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Hydrological Hydrological processes at Inle Lake Southern Shan State Myanmar inferred from hydrochemical mineralogical and isotopic data.pdf (2.3 Mb)
© 2016 Informa UK Limited, trading as Taylor & Francis Group
Publication type
Journal article
Upload type
Publication
Title
Title Hydrological processes at Inle Lake (Southern Shan State, Myanmar) inferred from hydrochemical, mineralogical and isotopic data
Language en
Publication date 2016-03-21
Authors
Myat Mon Thin
Sacchi, Elisa
Setti, Massimo
Description
A one-year hydrochemical and isotopic monitoring was conducted at the Inle Lake, the second largest lake in Myanmar, also considering sediment samples. Lake waters are characterised by low electrical conductivities (236–489 μS/cm), neutral to alkaline pH (7.36–9.26), oxidising Eh (329–457 mV) and Ca–Mg–HCO3 facies. Stable isotopes indicate that lake waters are only slightly affected by evaporation, are fully flushed yearly and are not stratified. Carbonate equilibria dominate the lake water hydrochemistry. In summer, photosynthetic activity and temperature increase induce calcite precipitation, as testified by its high content in the sediments, up to 97 %, and by its isotopic composition. The short residence time and endogenic calcite precipitation likely prevent the accumulation of contaminants and nutrients in lake waters. This study suggests a high resilience of the system to anthropogenic disturbances and demonstrates the sediment potential for the reconstruction of the environmental evolution in time and for the anthropogenic impact assessment.
Keywords
Anthropogenic impacts, carbon-13, evaporation, hydrodynamics, hydrogen-2, isotope ecology, isotope hydrology, oxygen-18, residence time, tropical lake, water quality
Identifier 10.1080/10256016.2015.1130038
Journal articles
4-5
Isotopes in Environmental and Health Studies
455–467
52
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