PROGRAMA GEOLOGIA DO BRASIL Contrato CPRM- UFPA Nº

Conclusão
Fácies Petrográficas Leucogranitos (PP3Ybl e PP3YMul)
Variedades Petrográficas LeucoSienogranitos
Amostra / Mineral CREMU-59B CREMU-24 CREMU-41A CREMU-58B KM-150 KM-51 KM-128 KM-138 KM-63 KM-82 KM-88 Média
Programa Geologia do Brasil – Folha Marajoara
Quartzo 31.9 30.4 32.4 25.7 31.5 30 31.4 32.6 46.7 34.3 32 32.70
Plagioclásio 14.8 21.6 17 17.1 20.7 22.5 20 17.6 14.7 18.6 14.3 18.41
Microclínio 46 45 47.3 53.7 45 42.9 47.4 49.2 36.1 44.8 51.2 46.26
Biotita 8.3 1.6 2.5 1.4 1.9 0.6 0.2 1.1 0.93
Anfibólio 0.1 0.7 0.08
Clorita 0.8 1.9 0.5 0.3 1.8 1.3 0.2 0.68
Opacos 0.8 0.4 0.1 0.4 0.4 0.7 0.3 0.4 0.5 0.7 0.8 0.47
Titanita 0.2 0.5 0.7 0.5 0.1 0.4 0.22
Allanita 0.3 0.03
Fluorita 0.8 0.4 0.12
Apatita 0.2 0.1 0.03
Acessórios 0.2 0.1 0.1 0.3 0.07
Clinopiroxênio 0.00
Muscovita 0.00
Máficos 9.30 2.00 3.20 3.30 2.30 4.60 1.20 0.60 2.40 2.00 2.50 2.41
A+P 46.7 52 49.4 42.8 52.2 52.5 51.4 50.2 61.4 52.9 46.3 51.11
Microclínio* 49.62 46.39 48.91 55.65 46.30 44.97 47.98 49.50 37.03 45.85 52.51 47.51
Quartzo* 34.41 31.34 33.51 26.63 32.41 31.45 31.78 32.80 47.90 35.11 32.82 33.57
Plagioclásio* 15.97 22.27 17.58 17.72 21.30 23.58 20.24 17.71 15.08 19.04 14.67 18.92
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