Raman spectroscopy has increasingly been used as an alternative to evaluation the maturity
of coals and organic matters, with more than 84% related articles published during the year …

Coal petrology data and vitrinite reflectance modelling were combined with micro-
geochemical and fluid inclusion analyses of coal mineralization and apatite fission track …

Tectonically deformed coal (TDC) is formed by complex and variable tectonic stresses. The
induced physical-chemical effects result in a variety of chemical compositions and structures …

The present study investigates the microstructural framework of coals from the Raniganj and
the Jharia Basins as well as from the Himalayan fold-thrust belts of Sikkim, India, by vitrinite …

The low to medium-rank Tertiary coals from Meghalaya, India, are explored for the first time
for their comprehensive microstructural characterization using the FTIR and Raman …

Solvent-extracted fractions of six Indian coal samples of different ranks were investigated
using multiple geochemical, petrological and spectroscopic proxies and an attempt was …

Nitrogen (N) stable isotope ratio (δ 15 N) in coal organic matter (OM) provides information
on the N source and dominant mechanisms affecting isotopic fractionation during …

This study recognizes a transition in the modes of ductile deformation across the Himalayan
Crystalline Complex (HCC) from field and microstructural evidence. This transition leads to …

Despite the global trend toward decarbonization, coal continues to play a significant role in
energy production, as current renewable energy sources cannot fully meet the increasing …

Differential tectonic deformation has different effects on the macromolecular structure of coal.
In this study, samples of tectonically deformed coals (TDCs) from the same coal seam in the …