GEO-CHEMICAL CONSTRAINTS OF ANAKDEV (DARA) HOT SPRING OF SHAHADA IN MIDDLE TAPI VALLEY, NANDURBAR DISTRICT OF MAHARASHTRA, INDIA

WAGH R.V.¹*, AUTI S.K.², RATHOD B.L.^3
1Art, Commerce and Science College, Sonai- 414 105, MS, India.
²Art, Commerce and Science College, Sonai- 414 105, MS, India.
³Kankawali College Kankawali- 416602, MS, India.
* Corresponding Author : rajeshwagh2424@gmail.com

Received : 12-10-2013     Accepted : 03-12-2013     Published : 31-12-2013
Volume : 4     Issue : 1       Pages : 116 - 119
Geosci Res 4.1 (2013):116-119

Keywords : Tapi Valley, Anakdev Hot Spring, Satpura hills, Deccan trap, Geochemistry
Conflict of Interest : None declared

Middle Tapi valley belongs to Jalgaon, Dhule and Nandurbar districts of Maharashtra state hosts nine hot springs. Geo-structurally, they are situated along the dolerite dyke, faults and fractures. Geologically this area comes under the Deccan Trap province. They are almost parallel to the strike line of southern Satpura foot hill or Tapi valley lineament. The geothermal water emerges on the surface through these dykes, faults and fractures. The water gets heated due to the geothermal gradient of interior of the earth. Anakdev (Dara) hot spring is perennial. The discharge of water from hot spring is constant with discharging rate 44 l/minute throughout the year. The temperature of hot spring fluctuates 50°C. The chemical characteristics of thermal water discharged from Anakdev (Dara) hot spring is sodium Chloride type. The source of the saline component (Cl) is attributed to ancient formation waters trapped in the geological formations, or magmatic or hydrothermal fluids. The percentage of total cation and anion (Na-HCO₃) is found to be a good indicator of hotness of water discharging from spring. The concentration of SO₄ ion in the hot spring waters is small. This unusual concentration reveals that the origin of SO₄ ions in the hot spring water is related topyrite (FeS₂) minerals in the rock formation. The recent occurrence of rise of water of this hot spring may be related to the recent interior activities of this area.

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