Integrated Study of Geological Sub-Surface Samples of Goru Formation of Well DND#27 in the Jaisalmer Petroliferous Basin of Western Rajasthan, India

Abstract

DND#27 is a test well situated in the structure of Danewala in the Jaisalmer Petroliferous Basin in western Rajasthan. The sandstone sedimentary samples taken from the Goru formation of Tertiary sedimentary sequence were employed to look into the mineralogy of iron-containing minerals using Mössbauer spectroscopy. FTIR analytical study of the chemical composition of the minerals variation with temperature of the samples. In the current Mössbauer investigations, iron is primarily found as siderite carbonate and as pyrite-containing clay minerals. A notable difference in the amount and type of siderite and pyrite, along with the presence of (Fe, Mg, Ca) carbonates, is recognized as the context of sedimentary deposition. Iron is detected in the current Mössbauer research mostly as siderite (carbonate) and as pyritecontaining clay minerals. The environment of sedimentary deposition is examined to reveal a notable difference in the amount and type of siderite and pyrite, as well as the presence of (Fe, Mg, Ca) carbonates. FTIR studies at various temperatures of samples show the disappearance of siderite around 600 °C, which verifies that carbonate, is present.