Jangada

STAFF, 1978 ENGINEERING AND MINING JOURNAL INTERNATIONALDIRECTORY OF MINING, 1978, P. 276.PERSONAL CORRESPONDENCE, D. G. SYDENSTRICKER, MINERACOESBRASILEIRAS REUNIDAS S.A.-MBR, FEB. 23, 1978.DORR, J. V. N., II, NATURE AND ORIGIN OF THE HIGH-GRADEHEMATITE ORES OF MINAS GERAIS, BRAZIL, ECONOMIC GEOLOGY,V. 60, NO. 1, P. 1-46.POMERENE, J. B., GEOLOGY AND ORE DEPOSITS OF THE BELOHORIZONTE, ITIBIRITE, AND MARCOS QUADRANGLES, MINASGERAIS, BRAZIL, U. S. GEOLOGICAL SURVEY PROF. PAPER 341,PT. D, 1964, P. D1-D81.