Dharvi Dungar Fm
Type Locality and Naming
SUBSURFACE: [Referred Publication: John Dolson, Stuart D. Burley, V.R. Sunder, V. Kothari, Bodapati Naidu, Nicholas P. Whiteley, Paul Farrimond, Andrew Taylor, Nicholas Direen, and B. Ananthakrishnan, 2015 : The Discovery of the Barmer Basin, Rajasthan, India, and its petroleum geology : AAPG Bulletin, 99 (issue 3, 1 Mar 2015), pp. 433-465; https://doi.org/10.1306/10021414045]
Lithology and Thickness
Claystone. Comprised of lacustrine shales with lignitic coals. It is further divided into Giral Member.
[Figure 1: Detailed stratigraphy in the Barmer Basin, with newly proposed stratigraphic units, linked to summary tectonic evolution and reservoirs, seals and source rocks in the basin. The primary reservoirs are the Paleocene Fatehgarh and Barmer Hill Formations. The most prolific source rock is the Barmer Hill Formation. The ultimate seal is the Eocene Akli Formation (Dolson et al., 2015)]
Relationships and Distribution
Lower contact
Unconformably overlies Barmer Hill Fm.
Upper contact
Unconformably overlain by the Thumbli Fm.
Regional extent
[Figure 2: Stratigraphic Correlation of Rajasthan Basins (from dghindia.gov.in)]
GeoJSON
Fossils
Occasional presence of dinoflagellates
Age
Depositional setting
Additional Information
The Dharvi Dungar Fm has generally tested commercial oil only on the Central Basin high in the Raageshwari and Guda fields.