Experimental Study on Initial Behavior of Water-rock Interaction in CO[sub 2]-added Hydrothermal System

2008 ◽  
Author(s):  
Y. Suto ◽  
H. Takahashi ◽  
N. Tsuchiya ◽  
Kazuyuki Tohji ◽  
Noriyoshi Tsuchiya ◽  
...  
Keyword(s):  
Experimental Study ◽  
Hydrothermal System ◽  
Rock Interaction ◽  
Water Rock Interaction

Experimental study on the fracture behavior of sandstone after ScCO2–water–rock interaction

2019 ◽  
Vol 68 ◽  
pp. 102904 ◽  
Author(s):  
Ze-dong Sun ◽  
Xuan-min Song ◽  
Gan Feng ◽  
Yu-ming Huo ◽  
Shao-qi Kong ◽  
...  
Keyword(s):  
Experimental Study ◽  
Fracture Behavior ◽  
Rock Interaction ◽  
Water Rock Interaction

Water–rock interaction in the magmatic-hydrothermal system of Nisyros Island (Greece)

2010 ◽  
Vol 192 (1-2) ◽  
pp. 57-68 ◽  
Author(s):  
Michele Ambrosio ◽  
Marco Doveri ◽  
Maria Teresa Fagioli ◽  
Luigi Marini ◽  
Claudia Principe ◽  
...  
Keyword(s):  
Hydrothermal System ◽  
Rock Interaction ◽  
Water Rock Interaction

scholarly journals The Yellowstone magmatic-hydrothermal system: using radiogenic and stable isotope geochemistry to constrain the processes of water-rock interaction

2019 ◽  
Vol 42 ◽  
pp. 11-19
Author(s):  
Cole Messa
Keyword(s):  
Hydrothermal System ◽  
Yellowstone National Park ◽  
National Park ◽  
Hot Springs ◽  
Fluid Phase ◽  
Past Century ◽  
Geochemical Processes ◽  
Rock Interaction ◽  
Geochemical Parameters ◽  
Water Rock Interaction

The hot springs of Yellowstone National Park provide a broad range of isotopic data (e.g. 238U-, 235U-, and 232Th-series) that can be exploited to interpret the geochemical processes occurring at depth, including water-rock interaction, nuclide sourcing, and fluid residence times. Despite its worldwide notoriety, Yellowstone’s hydrothermal system remains largely unconstrained. While major advances in the past century have helped us to understand the highly varied geochemical characteristics of Yellowstone’s thermal features and their potential mechanisms of formation, many questions remain regarding where exactly the water resides before ascending to the surface, how long the water remains at depth, and what geochemical processes are occurring between these waters and the superheated aquifer rocks. One of the primary questions surrounding the Yellowstone hydrothermal system revolves around the concept of “phase separation”, whereby ascending, pressurized hydrothermal fluids undergo decompressional boiling and separate into an acidic vapor phase and a neutral fluid phase. These diverging phases result in the two dominant spring chemistries viewed on the surface, acid-sulfate springs and neutral-chloride springs. Still, little is known about the timescales such a process operates on, and what geochemical parameters can be constrained to support the existence of this model. Herein we examine a handful of hydrothermal features throughout Yellowstone National Park in an effort to investigate the likelihood of phase separation’s existence and whether or not the isotopic evidence supports the geochemical processes that we know to be occurring should this model persist within the plumbing of a continental hydrothermal system.   Featured photo from figure 3 in report. 

87SR/86SR, δ18O AND NOBLE GASES AS TRACERS OF WATER-ROCK INTERACTION IN THE THEISTAREYKIR GEOTHERMAL FIELD

2020 ◽  
Author(s):  
Marie Haut-Labourdette ◽  
◽  
Daniele Pinti ◽  
André Poirier ◽  
Marion Saby ◽  
...  
Keyword(s):  
Noble Gases ◽  
Geothermal Field ◽  
Rock Interaction ◽  
Water Rock Interaction

scholarly journals Geochemical and isotopic evidence of groundwater salinization processes in the Essaouira region, north-west coast, Morocco

2021 ◽  
Vol 3 (7) ◽  
Author(s):  
Otman EL Mountassir ◽  
Mohammed Bahir ◽  
Driss Ouazar ◽  
Abdelghani Chehbouni ◽  
Paula M. Carreira
Keyword(s):  
Groundwater Recharge ◽  
West Coast ◽  
Exchange Process ◽  
Environmental Isotopes ◽  
Annual Rainfall ◽  
Groundwater Salinization ◽  
Rock Interaction ◽  
North West ◽  
The North ◽  
Water Rock Interaction

AbstractThe city of Essaouira is located along the north-west coast of Morocco, where groundwater is the main source of drinking, domestic and agricultural water. In recent decades, the salinity of groundwater has increased, which is why geochemical techniques and environmental isotopes have been used to determine the main sources of groundwater recharge and salinization. The hydrochemical study shows that for the years 1995, 2007, 2016 and 2019, the chemical composition of groundwater in the study area consists of HCO3–Ca–Mg, Cl–Ca–Mg, SO4–Ca and Cl–Na chemical facies. The results show that from 1995 to 2019, electrical conductivity increased and that could be explained by a decrease in annual rainfall in relation to climate change and water–rock interaction processes. Geochemical and environmental isotope data show that the main geochemical mechanisms controlling the hydrochemical evolution of groundwater in the Cenomanian–Turonian aquifer are the water–rock interaction and the cation exchange process. The diagram of δ2H = 8 * δ18O + 10 shows that the isotopic contents are close or above to the Global Meteoric Water Line, which suggests that the aquifer is recharged by precipitation of Atlantic origin. In conclusion, groundwater withdrawal should be well controlled to prevent groundwater salinization and further intrusion of seawater due to the lack of annual groundwater recharge in the Essaouira region.

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