Petrography and illite crystallinity of the Lesser Himalayan metasediments, Gorkha Narayangarh section, central Nepal

Authors

  • Kabi Raj Paudyal Central Department of Geology Tribhuvan University Kirtirpur, Kathmandu
  • Tara Prasad Pokharel Central Department of Geology Tribhuvan University Kirtipur, Kathmandu
  • Lalu Prasad Paudel Central Department of Geology Tribhuvan University Kirtipur, Kathmandu

DOI:

https://doi.org/10.3126/bdg.v14i0.5441

Keywords:

Petrography, illite crystallinity, Lesser Himalaya

Abstract

Geological study was carried out in the Lesser Himalaya from Gorkha-Narayangarh section of central Nepal aiming to assessthe metamorphism of the area. The area consists of the Kunchha Formation, Fagfog Quartzite, Dandagaon Phyllites, NourpulFormation, Dhading Dolomite, Benighat Slate and the Robang Formation of the Nawakot Complex. Systematic study onpetrography and illite crystallinity was performed in the samples representing all types of lithology and formations. Bothpetrography and illite crystallinity show that the rocks south of Anbu Khaireni belong to chlorite zone. Biotite and garnet zonesare observed only in the north of Anbu Khaireni. The metamorphic zones are inverted as in the other parts of the Lesser Himalaya.

DOI: http://dx.doi.org/10.3126/bdg.v14i0.5441

Bulletin of the Department of Geology Vol.14 2011, pp.67-76


 

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How to Cite

Paudyal, K. R., Pokharel, T. P., & Paudel, L. P. (2011). Petrography and illite crystallinity of the Lesser Himalayan metasediments, Gorkha Narayangarh section, central Nepal. Bulletin of the Department of Geology, 14, 67–76. https://doi.org/10.3126/bdg.v14i0.5441

Issue

Vol. 14 (2011)

Section

Articles

License

© Central Department of Geology, Tribhuvan University, Nepal