PEtROGRAPHIC AND GEOCHEMICAL STUOIES OF SOME PHOSPHORITE '- DEPOSITS OF HAZARA, PAKISTAN

Authors

  • VIQAR HUSAIN PCSIR Laboratories, Jamrud Road, Peshawar; Pakistan
  • SAFDAR SULTAN PCSIR Laboratories, Jamrud Road, Peshawar; Pakistan
  • RUBINA BILQEES PCSIR Laboratories, Jamrud Road, Peshawar; Pakistan
  • ABDUL MATEEN PCSIR Laboratories, Jamrud Road, Peshawar; Pakistan
  • BAHRAWAR KHAN PCSIR Laboratories, Jamrud Road, Peshawar; Pakistan

Keywords:

Petrography, Geochemistry, Phosphorite.

Abstract

Samples from Kakul mine and trenches of several phosphorite deposits were studied. These phosphorites oecur
in gradational contact with siltstone, dolomite and chert belonging to Abbottabad Cambrian System. Thinly bedded
phosphorites occur mostly as pellets and microsphoritc, while the intraclasts and pseudo-oolites are rare. Fluorapatite
is abundant in all the samples, while quartz, calcite, dolomite, feldspar, illite and hematite occur in minor phases. These
phosphorites are primary marine sediments formed mostly by direct precipitation. Recrystallization is due to intense diagenesis,
whereas fcrruginization suggests weathering of phosphatic horizons in Hazara.

Published

2022-06-09

How to Cite

HUSAIN , V. ., SULTAN, . S. ., BILQEES, . . R. ., MATEEN , A., & KHAN , . B. . (2022). PEtROGRAPHIC AND GEOCHEMICAL STUOIES OF SOME PHOSPHORITE ’- DEPOSITS OF HAZARA, PAKISTAN. Biological Sciences - PJSIR, 37(6-7), 245–251. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/2675

Issue

Vol. 37 No. 6-7 (1994): Pakistan Journal of Scientific and Industrial Research

Section

Articles