Hydrocarbon Potential of the Paleogene Disang Group, Manipur Region, India-A Palynological Approach

Abstract

In the present study, the rocks of the Disang Group of Manipur are evaluated for source rock potential for hydrocarbons. In these Paleogene rocks, amorphous organic matter is the most abundant component in association with other forms of organic matter. Other types of organic matters such as charcoal, partly biodegraded land plant fragments, black debris, spores and pollens are recorded as well. Rock-Eval and TOC analysis of the studied samples suggest that all the rocks have poor organic richness (TOC < 0.5 %) and poor hydrocarbon generation potential (S2 < 0.5 mgHC/g rock). The organic matter content is predominantly of Type III and Type IV. The T max and Productive Index values support the results of visual kerogen analysis. Most of the kerogen is of low level of maturity inferred from light colour of amorphous organic matter in some samples. This conclusion is also supported by Low T max values and low productive index obtained from these samples. TAI (Thermal Alteration Index) values above 3.5 suggest highly mature to overmature mixed palynofacies. The Disang Group of the Manipur appears poor to moderate gaseous hydrocarbons as far as hydrocarbon potential is concerned.

Nutritional Profiling and Antioxidant Property of Three Wild Edible Mushrooms from North East India

“…Geographically in the north-eastern region of India, covering a total area of 22,327 sq. km, lying between 23°50′ and 25°41′ North latitudes and 93°61′ and 94°47′ East longitudes [ 1 ]. The region falls in the Indo-Burma Global Biodiversity hotspots, experiencing different types of climatic zones, ranging from tropical to sub-tropical and temperate forests [ 2 ].…”

Palaeoecological significance of a palynofloral assemblage from Surma Group (Late Miocene) of Tamenglong area, Manipur, northeast India

“…However, very little palynological work has been done so far on the Neogene palynostratigraphy of Manipur. Only a few published records are available from the Palaeogene rocks of the Upper Disang Formation 1 (Singh and Meera 2013;Singh et al , 2015Singh et al , 2016a. During the course of biostratigraphical investigations of Manipur, the present authors have discovered and analyzed a well preserved Late Miocene palynofloral assemblage from the sediments of Surma Group exposed in the Tamenglong area.…”

Hydrocarbon Potential of the Disang Group of Rocks of the Inner Paleogene Fold Belt of Assam-Arakan Basin Exposed along the Dimapur-Senapati Road Section of Nagaland and Manipur, India

“…However, details about location of the study area are not mentioned in the document. Other notable publications on organic geochemistry and hydrocarbon potential of the Disang Group are those of Gogoi and Sarmah [3] and Singh et al [4]. These papers examine hydrocarbon potential of the Disang shales, exposed in the Tirap District of Arunachal Pradesh and Manipur respectively.…”