Ditapis dengan
Ditemukan 2 dari pencarian Anda melalui kata kunci: author=Hasjrul Hamidsyah
Departement Of mines And Energy Directorate General Of Mines Directorate Of M…
In Hatapang, North Sumatra, Permo-Carboniferous metawacke of the Tapanuli Group is intruded by a Cretaceous-Tertiary granite. At the contact, quartz veins, aplite, and pegmatite dykes cut the surrounding rocks. Cassiterite (tin) and wolframite (tungsten) occur in the veins and greisen zones, along with minerals like pyrite, arsenopyrite, and muscovite. Thin section and chemical analyses were us…
- Edisi
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- ISBN/ISSN
- -
- Deskripsi Fisik
- v, 50 hlm. : ilus. ; 30 cm.
- Judul Seri
- -
- No. Panggil
- PMB LA 1982 - 1 NL
Department Of Mines And Energy Directorate General Of Mines Directorate Of Mi…
- Edisi
- -
- ISBN/ISSN
- -
- Deskripsi Fisik
- 51 Halaman
- Judul Seri
- -
- No. Panggil
- PMB LA 1982 - 1
- Edisi
- -
- ISBN/ISSN
- -
- Deskripsi Fisik
- 51 Halaman
- Judul Seri
- -
- No. Panggil
- PMB LA 1982 - 1
Karya Umum 
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Kesenian, Hiburan, dan Olahraga 
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Geografi dan Sejarah