71 Carbonifero us 592.4 33.70 19.6 5.89 66.2 9.76 Permian 16.9 0.97 16.2 4.88 0 0 Pal. undiff. 1.5 0.08 0 0 1.5 0.22 Triassic 43.5 2.47 1.5 0.45 0 0 Jurassic 0 0 0 0 0 0 Cretaceous 2.5 0.14 0 0 0 0 Paleogene 0 0 0 0 0 0 Neogene 0 0 0 0 0 0 Pleistocene 8.5 0.49 0 0 8.5 1.26 Unknown 118.6 6.75 0 7.43 51.6 7.6 Total 1758.0 100 332.8 100 679.1 100 Proterocoic, in particular Neoproterozoic, sediments are by far the most important graphite-bearing rock sequences. During this period, organic material, which served as the basis for the graphites formed during metamorphism, was able to accumulate massively. Those areas are preferred exploration targets. 5.1.4 by geological-tectonic setting Table 4 - Distribution of C-resources by tectonic setting of mineralisation in Mio t Tectonic position of mineralisati on CResourc es all Share in % CResources producing operations only Share in % CResources exploratio n projects only Share in % Archaic Complexes Gneisses, granites 10.9 0.62 0.02 0.01 3.7 0.54 Greenstone belts 5.6 0.32 0 5,1 0.76 Granite intrusions 0 0 0 0 0 Ultrabas. Intr. 0 0 0 0 0 Sed. cover 142.6 8.11 95.5 28.69 0.25 0.04 Proterocoic complexes Proterocoic belts 712.4 40.52 152.7 45.89 497.0 73.19 L-prot. island arcs 0 0 0 0 0 0 Prot. sed. compl. 104.0 5.92 20.0 6.00 14.4 2.11 rifts 1,09 0.06 0 0 0 0
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