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Departement Of mines And Energy Directorate General Of Mines Directorate Of Mineral Resources Sub Directorate Of Geochemistry

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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 used to study mineral and chemical changes during greisenization.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

PMB LA 1982 - 1 NL

Penerbit

Bandung : Pusat Sumber Daya Geologi., 1982

Deskripsi Fisik

v, 50 hlm. : ilus. ; 30 cm.

Bahasa

English

ISBN/ISSN

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Klasifikasi

553.21 HAM d

Tipe Isi

text

Tipe Media

unmediated

Tipe Pembawa

other (unmediated)

Edisi

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Subjek

NONLOGAM
Granit

Info Detail Spesifik

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Pernyataan Tanggungjawab

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Informasi Lainnya

Kode Wilayah

LA

Pulau Dan Lembar Peta

Sumatera

Provinsi

Sumatera Selatan

Koordinat - Latitude

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Koordinat - Longitude

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Versi lain/terkait

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