Abstract:
Results of a geological traverse conducted through the northern part of Tirah in Khyber Agency during the last week of Jul 1971, are reported. The reeks encountered between Lala China and the Rajgal are Lala China Slaty shales, Chura Kandao Limestone, Walai Limestone, China Limestone. Spinkai Limestone, Mughalbagh Shales, Paleocene Limestone and Murree sandstones and shales; the latter two units are well developed in the Barn and Rajgal valleys, west of Bazar. The Palaeozoic sequences, besides Lala China and Chura Kandao(Khyber Pass), were encountered at two places; in a Khwar about 3 miles upstream of Mughalbagh and in Baraghat nala in the Rajgal area. Four differentiable mapable units from bottom to top are; Lwarai Mela Limestone Baraghat State, Barai Quartzite and Spinkai Limestone, which have been placed as members of the Rajgal Formation. Acid igneous intrusions consisting of granite and granitegneiss with pegmatite and splite veins lie in contact with the upper part of Spinkai Limestone. Graphite mineralization occurs in the granite and granitegneiss near the contact of the Spinkai Limestone.
Page(s):
79-88
DOI:
DOI not available
Published:
Journal: Bulletin of centre of excellence in geology, Volume: 7-8, Issue: 1, Year: 1975