DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY CHEMICAL AND PHYSICAL CHARACTERISTICS OF COAL AND CARBONACEOUS SHALE SAMPLES FROM THE SALT RANGE COAL FIELD, PUNJAB PROVINCE, PAKISTAN by P. D. Warwick1 and T. Shakoor2 , S. Javed2 , S. T. A. Mashhadi2 , H. Hussain2 , M. Anwar2 , and M. I. Ghaznavi2 OPEN-FILE REPORT 90-524 Report prepared jointly by the Geological Survey of Pakistan and the U.S. Geological Survey under the auspices of the U.S. Agency for International Development This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature ^.S. Geological Survey 2 Geological Survey of Pakistan Reston, Virginia Lahore 1990