Degassed versus Consumed Flux of CO2 from the Third Pole

The Himalaya hosts hundreds of active geothermal springs, which emit a substantial fraction of CO2 into the atmosphere. The quantity and rate of metamorphic CO2 emissions provide an important input in understanding the global carbon cycle. The Himalaya controls the earth’s carbon cycle and reflects...

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Bibliographic Details
Published in:Journal of the Geological Society of India 2023-09, Vol.99 (9), p.1305-1308
Main Authors: Tiwari, Sameer K., Sain, Kalachand, Kaur, Sehajnoor, Yadav, Jairam Singh, Baiswar, Ayushi
Format: Article
Language:English
Subjects:
Atmosphere
Carbon cycle
Carbon dioxide
Carbon dioxide emissions
Climate variability
Degassing
Drawdown
Geothermal springs
Metamorphism
Orogeny
Silicates
Weathering
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Summary:The Himalaya hosts hundreds of active geothermal springs, which emit a substantial fraction of CO2 into the atmosphere. The quantity and rate of metamorphic CO2 emissions provide an important input in understanding the global carbon cycle. The Himalaya controls the earth’s carbon cycle and reflects a long-term climate variability driven by metamorphism in response to geochemical weathering caused by orogenic forcing. The CO2 degassing has significantly increased (∼ more than threefold) in recent decades compared to the estimated CO2 drawdown in the Himalaya due to silicate weathering. The present study highlights the research gaps and limitations associated with measuring degassed concentrations from a geothermal field to the atmosphere.
ISSN:0974-6889
0016-7622
0974-6889
DOI:10.1007/s12594-023-2464-0