The geology of the area is described in blad 30 van de geologische kaart van java by Ludwig (1) Folded and faulted dark concretion bearing shales of the widdle miocene Annualatushorizon are overlain by andesitic bearing tuff and breccia amd puntured by contemporaneus (?) plugs, dikes and small stocks of diorite porphyry and andesite.
DAerah pantai Indramayu - Tjirebon adalah dataran rendah jang hampir rata dengan ketinggian rata2 5-40 meter diatas permukaan laut. Didaerah ini endapan aluvium dan endapan vulkanik menutupi hampir seluruh daerah, endapan aluvium hampir menutupi seluruh pantau. endapan neogen terdapat disebagian ketjil daerah sebelah selatan.
Sesuai dengan rentjana pembangunan sementara berentjana kita sekarang ini,memebuka projek2 besar jang mana termasuk projek besi badja.disini kami aturkan satu di antaranya penyelidikan projek besi badja lampung,jang diperintahkan djawatan geologi bandung,pada tanggal 20 oktober 1962
It is Proposed to recover and produce on a commercial basis: a. gypsum, by Precipitation this material from a natural, dilute nut impure sulphuric acid salution throught a reaction with limestone
in the framework of the iron and street project of the biro pranjang negara,geological investigation on the coal deposits in te sungup-salero region in the northen part of pulau laut(southhest Kalimantan),were carried our in the 1958 by the geoogical survey indonesia
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Deskripsi Fisik
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