PROGRAMA GEOLOGIA DO BRASIL Contrato CPRM- UFPA Nº

Continuação
Fácies Petrográficas Granitos portadores de Biotita ± Anfibólio (PPY3bb e PPY3Mub)
Variedades Petrográficas Anfibólio-biotita-monzogranitos
Amostra / Mineral ADR-237D ADR-74E ADR-98A CREMU-23 CREMU-29A CREMU-35A CREMU-42A KM-113 KM-144B KM-37A KM-72 KM-77A KM-81 Média
Quartzo 30.4 27.4 28 30.5 30.3 23.9 29.6 29.2 27.1 30.6 29.4 30.3 32.1 29.14
Plagioclásio 30 36.7 36.1 33.5 27.6 27.6 36.6 36.6 39.3 32.5 28.9 34.7 34 33.39
Microclínio 24.3 22 27.4 27.8 32.2 35.1 24.3 26 22.9 24.5 32.6 29.5 26 27.28
Biotita 6 5.5 5.8 5.4 8.4 4.8 4.1 4.2 6.3 9 3.6 2.2 3.4 5.28
Anfibólio 5.6 4.4 0.8 1.4 0.4 3.9 1.9 1.2 2.5 1 2.7 1.5 2.3 2.28
Clorita 0.3 0.1 0.2 0.4 0.9 0.6 0.4 0.5 0.3 0.28
Opacos 2.4 1.9 1.3 0.6 0.3 1 1.7 0.6 0.6 1 0.9 0.9 0.3 1.04
Titanita 0.2 0.1 0.4 0.8 2.7 0.8 1 0.7 0.2 1 0.9 1.4 0.78
Allanita 0.5 1.1 0.12
Fluorita 0.00
Apatita 0.4 0.4 0.5 0.4 0.2 0.15
Acessórios 0.5 0.1 0.6 0.1 0.2 0.6 0.3 0.18
Clinopiroxênio 0.3 0.3 0.05
Muscovita 0.00
Máficos 14.80 13.50 8.50 8.20 9.90 12.40 9.40 7.60 10.10 11.60 8.70 5.50 7.70 9.84
A+P 60.4 64.1 64.1 64 57.9 51.5 66.2 65.8 66.4 63.1 58.3 65 66.1 62.53
Microclínio* 28.69 25.55 29.95 30.28 35.74 40.53 26.85 28.32 25.64 27.97 35.86 31.22 28.23 30.37
Quartzo* 35.89 31.82 30.60 33.22 33.63 27.60 32.71 31.81 30.35 34.93 32.34 32.06 34.85 32.45
Plagioclásio* 35.42 42.62 39.45 36.49 30.63 31.87 40.44 39.87 44.01 37.10 31.79 36.72 36.92 37.18
Programa Geologia do Brasil – Folha Marajoara
53