Mineral carbonation reactions under water-saturated, hydrothermal-like conditions and numerical simulations of CO2 sequestration in tholeiitic basalt of the Eastern Deccan Volcanic Province, India

SummaryTen rather uniform tholeiitic basalt flows totalling a thickness of 190 m from Sagar, India, contain two stratigraphical breaks. Major element variation allows the flows to be grouped into two eruption cycles. Due to intraflow variation, however, chemical composition is unlikely to be useful in widespread correlation of flow sequence. The initial 87Sr/86Sr ratios vary from 0·7039 to 0·7084 with Rb and Sr averaging 6·5 and 184 ppm respectively and Rb/Sr ratios ranging from 0·002 to 0·224, with no systematic relationship between the initial 87Sr/86Sr ratios and other chemical parameters. Bulk crustal contamination is considered unlikely; selective introduction of 87Sr from the granitic basement is postulated.

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Fluoride Accumulation in Groundwater from Semi-arid Part of Deccan Volcanic Province, India: A Cause of Urolithiasis Outbreak

10.21523/gcj3.17010102 ◽

2017 ◽

Vol 1 (1) ◽

pp. 9-17 ◽

Cited By ~ 6

Author(s):

Sanjay Kale ◽

N. J. Pawar

Keyword(s):

Medical Records ◽

Fluoride Concentration ◽

Data Generation ◽

Deccan Volcanic Province ◽

Temporal And Spatial Distribution ◽

Volcanic Province ◽

Fluoride Accumulation ◽

Hot Days ◽

Geochemical Investigation ◽

Relationship Of

Groundwater fluoride and health problem was meticulously studied for dental and skeleton fluorosis except few studies on urolithiasis. Urolithiasis is multi-factorial disease and excess fluoride consumption is one of the causal factors. In view of this, increase of fluoride in groundwater is reported in semiarid Deccan Volcanic Province (DVP), India. To understand the fluoride and urolithiasis association, present study was carried out in Karha river basin of DVP region. Three stages of data generation were adopted for present study such as procuring of medical records of urolithiasis, previous groundwater chemistry data and geochemical investigation of 50 groundwater samples from representative villages. Further, these variables were used for correlation analysis, temporal and spatial distribution to find out their relationships. Result shows medical records of hospitals indicating the gradual increase in urolithiasis is reported during drought situations. In temporal variation, annual fluoride concentration of groundwater and hot days are positively correlated with annual urolith patients as well as spatial study supports the same. In conclusion, present study highlights the relationship of urolith formation with number of hot days, groundwater electrical conductivity and fluoride. However, detailed biomedical study may lead towards understanding of fluoride- urolithiasis relationship.

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The Assesment for CO2 Sequestration Potential by Magnesium silicate Minerals in Turkey: Cases of Orhaneli-Bursa and Divrigi-Sivas Regions

Energy Exploration & Exploitation ◽

10.1260/014459808787945362 ◽

2008 ◽

Vol 26 (5) ◽

pp. 293-309 ◽

Cited By ~ 5

Author(s):

K. Baris ◽

A. Ozarslan ◽

N. Sahin

Keyword(s):

Co2 Sequestration ◽

Power Plants ◽

Thermal Power ◽

Magnesium Silicate ◽

Open Pit ◽

Mineral Carbonation ◽

Silicate Mineral ◽

Open Pit Mines ◽

Silicate Minerals ◽

Sequestration Potential

This paper examines the CO2 sequestration potential of magnesium silicate minerals in Turkey for two example cases, the Orhaneli-Bursa and Divrigi-Sivas regions. The distribution and properties of the silicate mineral deposits are provided and the quantities of CO2 that can be sequestered in these deposits is estimated. The silicate minerals in the Orhaneli and Divrigi deposits provide significant CO2 sequestration capacity. Assuming 100% mineral carbonation efficiency, approximately 2.4 million tons/year of olivine and 6.5 million tons/year of serpentine would be required to sequester the CO2 released by the power plants investigated in this study. Although more detailed studies are needed, it is concluded that this approach has potential given Turkey's large dunite (olivine) and serpentine reserves. Furthermore, the proximity of these deposits and active open-pit mines to thermal power plants emitting CO2 facilitate the utilization of mineral carbonation.

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