文章基本信息

标题：Indication of Gold and Silver Occurrence at Sampit Bay, Kota Waringin Timur District, Central Kalimantan Province
其他标题：Indikasi Keterdapatan Emas dan Perak di Perairan Teluk Sampit, Kabupaten Kota Waringin Timur, Propinsi Kalimantan Tengah
本地全文：下载
作者：I Wayan Lugra ; I Wayan Lugra ; Udaya Kamiluddin 等
期刊名称：Bulletin of the Marine Geology
印刷版ISSN：1410-6175
电子版ISSN：2527-8843
出版年度：2013
卷号：28
期号：1
页码：1-11
DOI：10.32693/bomg.28.1.2013.50
语种：English
出版社：Marine Geological Institute of Indonesia
摘要：The study area is fluviatile deposit which consists of yellow to light gray loose sand, iron oxide, and kaoline spreading from the land shallowing to sea direction. Concentration grade for determining of gold and silver content used a total analysis of the hot mixture HF-HNO3-HClO4 with measurements "Atomic Absorption Spectrofotometry".(AAS). Highest concentration of gold and silver found at sample GCTS-31 that gold 0.096 ppm and silver 2.284 ppm, in muddy sand type sediment, at 3.1 meters depth and arround 1,250 meter length from coast line. While the lowest concentration of the gold was 0.025 ppm found at sample GBTS 14 in very fine sand type sediment located at 1.07 meter depth and approximately 320 meters length from coast line. The lowest concentration of the silver was founded at sample GBTS 25 that is 0.860 ppm in sandy mud sediment type located at 2.49 meters depth and approximately 3,000 meters length from the coast line. The gold placer is may derived from weathering of Pambuang Formation which spreads in the west and north of Sampit Bay, and transported by Mentaya River and longshore current system.
其他摘要：Daerah penelitian merupakan endapan fluviatil terdiri dari pasir lepas berwarna kuning muda sampai abu-abu pucat, oksida besi, dan kaolin yang memiliki sebaran makin mendangkal ke arah laut. Kadar konsentrasi untuk menentukan kandungan emas dan perak meng
关键词：sediment samples;laboratory analyses;gold;silver and Sampit Bay
其他关键词：contoh sedimen;analisis laboratorium;emas;perak dan Perairan Teluk Sampit