Petrological and geochemical variations of a turbidite-like metasedimentary sequence over the metatexite to diatexite transition within the Pampean Orogen, Argentina

2019 ◽  
Vol 108 (4) ◽  
pp. 1361-1385 ◽  
Author(s):  
Juan E. Otamendi ◽  
Matías G. Barzola ◽  
Alina M. Tibaldi ◽  
Eber A. Cristofolini ◽  
Antonio M. Álvarez-Valero ◽  
...  
Keyword(s):  
Geochemical Variations ◽  
Metasedimentary Sequence

scholarly journals Analysis of Hydrothermal Systems Beneath Tayukeng through Long-Term Geochemical Signals of Hydrothermal Fluids in Tatun Volcano Group, Taiwan

2021 ◽  
Vol 18 (14) ◽  
pp. 7411
Author(s):  
Hsin-Fu Yeh ◽  
Hung-Hsiang Hsu
Keyword(s):  
Surface Temperature ◽  
Hydrothermal System ◽  
Hydrothermal Fluid ◽  
Thermal Water ◽  
Hydrothermal Systems ◽  
Hydrothermal Fluids ◽  
Geochemical Variations ◽  
Northern Taiwan

The Tatun Volcano Group (TVG) is located in northern Taiwan and consists of many springs and fumaroles. The Tayukeng (TYK) area is the most active fumarole site in the TVG. In this study, we analyzed the long-term geochemical variations of hydrothermal fluids and proposed a mechanism responsible for the variation in TYK. There are two different aquifers beneath the TYK area: a shallow SO42−-rich aquifer and a deeper aquifer rich in Cl−. TYK thermal water was mainly supplied by the shallow SO42−-rich aquifer; therefore, the thermal water showed high SO42− concentrations. After 2015, the inflow of deep thermal water increased, causing the Cl− concentrations of the TYK to increase. Notably, the inferred reservoir temperatures based on quartz geothermometry increased; however, the surface temperature of the spring decreased. We inferred that the enthalpy was lost during transportation to the surface. Therefore, the surface temperature of the spring does not increase with an increased inflow of deep hydrothermal fluid. The results can serve as a reference for understanding the complex evolution of the magma-hydrothermal system in the TVG.

Contrasting arc magma fertilities in the Gangdese belt, Southern Tibet: Evidence from geochemical variations of Jurassic volcanic rocks

Lithos ◽  
2019 ◽  
Vol 324-325 ◽  
pp. 789-802 ◽  
Author(s):  
Xilian Chen ◽  
Jeremy P. Richards ◽  
Huaying Liang ◽  
Yinqiao Zou ◽  
Jian Zhang ◽  
...  
Keyword(s):  
Volcanic Rocks ◽  
Southern Tibet ◽  
Geochemical Variations ◽  
Arc Magma

scholarly journals Morphological and geochemical variations along the eastern Galápagos Spreading Center

2005 ◽  
Vol 6 (1) ◽  
pp. n/a-n/a ◽  
Author(s):  
David M. Christie ◽  
Reinhard Werner ◽  
Folkmar Hauff ◽  
Kaj Hoernle ◽  
Barry B. Hanan
Keyword(s):  
Spreading Center ◽  
Geochemical Variations ◽  
Galapagos Spreading Center

Geochemical variations across the Jurassic/Cretaceous boundary in central Mexico. Insights for correlation with Tethyan areas

2020 ◽  
Vol 99 ◽  
pp. 102521
Author(s):  
Ricardo Barragán ◽  
Rafael López-Martínez ◽  
Bruno Chávez-Vergara ◽  
Fernando Núñez-Useche ◽  
Hugo Salgado-Garrido ◽  
...  
Keyword(s):  
Central Mexico ◽  
Geochemical Variations
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