Potential for oil and gas in the Proterozoic carbonates (Sirban Limestone) of Jammu, northern India
Published:January 01, 2009
G. M. Bhat, Ghara Ram, Sumita Koul, 2009. "Potential for oil and gas in the Proterozoic carbonates (Sirban Limestone) of Jammu, northern India", Global Neoproterozoic Petroleum Systems: The Emerging Potential in North Africa, J. Craig, J. Thurow, B. Thusu, A. Whitham, Y. Abutarruma
Download citation file:
The Proterozoic Sirban Limestone of Jammu in northern India contains an assemblage of Neoproterozoic microflora comparable to other such assemblages from different Proterozoic oil- and gas-bearing carbonate successions in India, Morocco and Siberia. The stromatolitic Sirban Limestone succession is composed of lamina-scale organic-rich source rocks, limestone units with good-quality reservoir characteristics and seal horizons that together constitute the basic physical elements of a petroleum system. A reworked microfloral assemblage of Neoproterozoic age is also recovered from the unconformably overlying Subathu Formation (Eocene) from the area. Some in situ elements of this assemblage, including a few genera, were also recovered from the Sirban Limestone. This reworked assemblage may be related either to upwards migration of hydrocarbons from deeper sediments or, more likely, to the existence of the Sirban Limestone and younger Neoproterozoic formations as a positive area that sourced the microflora to the Eocene Subathu Basin.
Figures & Tables
Global Neoproterozoic Petroleum Systems: The Emerging Potential in North Africa
Neoproterozoic successions are major hydrocarbon producers around the world. In North Africa, large basins with significant surface outcrops and thick sedimentary fills are widespread. These basins are now emerging as potential sources of hydrocarbons and are attracting interest from geological researchers in academia and the oil and gas industry.
This volume focuses on recent developments in the understanding and correlation of North African basin fills and explores novel approaches to prospecting for source and reservoir rocks. The papers cover aspects of petroleum prospectivity and age-equivalent global petroleum systems, Neoproterozoic tectonics and palaeogeography, sequence stratigraphy, glacial events and global climatic models, faunal and floral evolution and the deposition of source rocks.
The broader aim of this volume is to compare major environmental change, the emergence of life, the global carbon cycle and the implications for hydrocarbon exploration of well-studied Neoproterozoic successions worldwide.