In the course of the 1956/57 Wedexro investigations of the Indonesian coals a petrographic examination has already been carried out. Also the coal samples taken in 1958 in Kalimantan have been subjected by the Geological Office of Land North-Rhine/Westphalia of the Federal Republic of Germany to petrographic and pollen analytical examinations. These…
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Deskripsi Fisik
Warna : Biru Halaman : 9
Judul Seri
Petrographic and Pollen Analytical Examinations of Indonesia Coal Samples