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Modified silicified ecology at crater lake, Lonar, Maharashtra, India

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Author Affiliations

  • 1Room No. B1/701, Saket Co-Operative Hsg. Society Ltd., Saket Road, Thane (W) - 400 601, Maharashtra, India
  • 2H.No. 1910, Opp. Vittal Mandir, Mahatma Gandhinagar, Near Anandnagar, Thane (E) - 400603, Maharashtra, India

Int. Res. J. Earth Sci., Volume 6, Issue (11), Pages 1-9, November,25 (2018)

Abstract

Silicified rocks have been detected near Lake Periphery, Lonar, where SiO₂ content shows 99.5-99.8 % mass. Due to this, these rocks show milky white color and glassy type color of fully formed silica rocks. Representative rock samples of these types collected from the Lake Periphery and analyzed by XRF showed that SiO₂ was 99.5-99.8 mass %, which is nearly 100% silica or pure silica. This process known as silicification starts from white rusting of rocks/white coating of silica on basaltic rocks, having 95-97 mass % SiO₂, and finally is the formation of milky white rock having 99.5-99.8 mass % SiO₂., which means the transformation of entire basaltic rock converted into silicate rock by silicified process (white rusting or white coating of rocks). The whole process of silicification is observed to take place near the Lake periphery. The lake consists of diatoms, silt consisting SiO₂ detected at the bottom, lake water, in the soil at the lake periphery and transformation of basaltic rocks to silicate rock, all these indicate that a large quantity of SiO₂ may be present in the Crater Lake or in the soil near lake periphery and hence, it is of the opinion that a distinct ecology i.e., SiO₂ dominated ecology operates or exist here which has been termed as modified silicified ecology or modified silica ecology, although concentration of NaCl is high, yet it does not interfere with modified silica ecology or modified silicified ecology. What today exists at Lonar Crater is the silicified ecology. Being a preliminary investigation, this paper reports the findings and to put on records the observations and the findings.

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