Zircon and apatite fission-track dating of the Ampipal alkaline massif, the Nepal Lesser Himalaya

Authors

  • Pitambar Gautam Central Department of Geology, Tribhuvan University, Kirtipur, Kathmandu
  • Satoshi Koshimizu Department of Geology & Mineralogy, Faculty of Science, Hokkaido University, Sapporo 060, Japan

DOI:

https://doi.org/10.3126/jngs.v7i0.32571

Keywords:

Isotopic dating, Zircon-Apatite, Fission-track, Alkaline massif, Lesser Himalaya Nepal

Abstract

Fission-track dates for the rocks of the Ampipal alkaline massif range from 2.60 0.19 Ma to 2.81 0.26 Ma for zircon and 1.58 0.17 Ma to 1.69 0.21 Ma for apatite respectively. These dates suggest uplift/erosion rates ranging from 2.00 to 2.22 mm/yr and the corresponding cooling rates of 80 to 89°C/Myr for the period between ca. 2.81 Ma and the present.

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Published

1991-07-01

How to Cite

Gautam, P., & Koshimizu, S. (1991). Zircon and apatite fission-track dating of the Ampipal alkaline massif, the Nepal Lesser Himalaya. Journal of Nepal Geological Society, 7, 1–8. https://doi.org/10.3126/jngs.v7i0.32571

Issue

Vol. 7 (1991)

Section

Articles

License

© Nepal Geological Society