Byorder of the head of the bureau of mines the author has lead an excursion to the iron ore deposits in tanah bumbu or a commission composed of messrs .Ir.A.B.mettivier meyer of the billiton company and M.hirokawa,geologist of the furukawa mining co.Ldt.(mitsubishi concern).
n.wing easton sudah melakukan penyelidikan geologi konvensional setjara mendetil,terutama untuk sektor kalimatan barat lengkap dengan hasil penelitian lapangan dan lab.sebagai hasilnja berupa peta -peta geologi jang lengkap .
laporan ini disusun sebagai hasil peninjauan singkat terhadap endapan parit di daerah landjut ,kec.kenda-wangan,kab.ketapang ,prov.kalimantan barat pada achir tahu 1971 dalam rangka pelita terhadap pertama .
sesuai dengan isi surat pemerintah kepala direktorat pertambangn di djakarta ttg. 13-XXX-57, no 97/III, dan surat pemerintah dari kepala pusat djawatan geologi ttg.14-XXX-57, no:972/57, maka jang bertanda tangan dibawah telah melakukan perdjalanan dinas ke tambangan batu bara ombilin dari tgl. 18-XII-57 s.d 21-XII-57, bersama2 dgn. Mr. D. W. Mitchel…
atas permintaan kepala seksi hydrogeologi g.t.h.,kepada seksi eksplorasi geofisika ,telah diadakan penyelidikan tahanan jenis di kota indya pontianak untuk mencari lapisan pembawa air tawar di daerah tersebut .
sampai pertambangan bulan september 1973 hampir seluruh "test pit" yang direncanakan telah selesai di gali meskipun beberapa diantaranya besar kemungkinan masih ada yang harus diperdalam .
These are completed and decribed by Ubaghs in the mentioned Kutai area, and are also finished in his 5 maps of scale 1:25.000 it included not only the region west and east koetai (exduded apart of S.W. And N.W Koetai) but also Balikpapan, The whole Mangkaliat peninsula and a small part of upper Mahakam. in comexion with Dr. Zwierzycki's criticism et…
These are completed and decribed by Ubaghs in the mentioned Kutai area, and are also finished in his 5 maps of scale 1:25.000 it included not only the region west and east koetai (exduded apart of S.W. And N.W Koetai) but also Balikpapan, The whole Mangkaliat peninsula and a small part of upper Mahakam. in comexion with Dr. Zwierzycki's criticism et…
In the years 1937 writer of this report was on behald of the marsman concern for two and a half mont in SE borneo i.e the surroundinge of kotabaroe at the strait of laoet for the study of the iron-and coal-deposits, occurring there, and the possibilities of their exploitation, either each separately or some or all of them together.