The survey area lies 90 Km northwest of Tapaktuan on the west coast of Sumatra in Aceh Province. A regional geological and mineralisation. The Susoh instrusion (late cretaceous to palaeocene in age)intrudes volcanics and limestones presenting the possibility of skarn-type mineralisation. Also the drainage basin survey had indicated copper anomalies …
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Deskripsi Fisik
33 Halaman, tidak bergambar, tidak berwarna, lampi
The Weghete (Yapekopra0 1:250.000 geological sheet area covers the area between 4 derajat and 5 derajat sounth latitude and 135 derajat 136 derajat 30' east longitude overlapping the sounthy coast and southern fall of the western central ranges of Irian Jaya.
A geochemical survey and mineral exploration of the Sigalala area has identified a middle Tertiary intrusive complex of altrered/weathered granodiorite with characteristics suggestive of Cu-Mo Porphyry style mineralisation
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Deskripsi Fisik
27 Halaman, tidak berwarna, lampiran peta,cover bi
From 1976 through 1982 intensive systematic geological mapping Was carried out in Irianjaya, the easternmost provice in indonesia, in the western oart of the island of new guinea. Concurrently, sporadic geochemical sampling Was performed in minland Irianjaya and the nearby island.
Pemetaan geologi di lembar Biak, Irian Jaya, di lakukan pada tanggal 15 oktober hingga 28 Desember 1977 oleh sub Direktorat Perpetaan, Direktorat Geologi (sekarang Pusat Penelitian dan Pengembangan geologi), melalui Proyek Pemetaan Geologi dan Interpretasi Foto udara. Hampir semua perlengkapan lapangan termasuk kendaraan bermotor dan perahu bermotor…
Prior to the IAGMP the only significant gravity mapping of Irian Jaya Was undertaken byb the Nederlandsche Nieuw Guinee petroleum Maatschappij(NNGPM) from 1936 to 1960 as reported by visser and Hermes 1962. This pioneering Work Was undertaken as part of a search for oil and gas Was therefore largely restricted to areas of considered hydrocarbon pote…
A 1st-Order geochemical- and soil-painning tin anomaly on the north-aest margin of the Hatapang granite in north sumatra was magnetometric-.VLF-and VES measurements)and three brief geological traverses.
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28 Halaman, tidak berwarna,lampiran peta, cover bi
The Kr. Dusun basin area has been subjected to several previous investigations that have indicated the presence of porphyry-style mineralisation plus the occurrence of some lead-zinc drainage basin anomalies. In this investigation an area a altered granodiorite was surveyed by detailed drainage basin and rock sampling.
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Deskripsi Fisik
58 halaman, tidak berwarna, lampiran peta, cover b
The Ransiki 1:250,000 geological sheet is bounded by 1 derajat and 2 derajat sounth latitudes and 133 derajat and 134 derajat 30' east longitudes, and overlaps the eastern coastline of the Birds Head of Irian Jaya, indonesia's easternmost province.