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Ditemukan 24 dari pencarian Anda melalui kata kunci: subject="Geochemical"
Geological Survey Program in Geochemical Exploration Research
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- 9 halaman , tidak bewarna , tidak bergambar , cove
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- PMB LU 1967 - 2
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- 9 halaman , tidak bewarna , tidak bergambar , cove
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- PMB LU 1967 - 2
The Homogeneity Of Six Geochemical Exploration Reference Samples
U.S. Geological Survey analysts have made more than 4fi,OUO determinations on six geochemical exploration reference samples for the purpose of furnishing data on the homogeneity of the samples. The samples are considered to bL• sufficiently uniform to be use f'…
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- Deskripsi Fisik
- 22 halaman, tidak berwarna, cover warna abu
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- PMB LU 1980 - 5
North Sumatra geochemical and mineral exploration project
The machines are equipped to run at U.K. mains voltage and frequency, ie 240v 50Hz, and consume 146VA power at full load. Computers are sensitive to voltage fluctuations, and '.even more so to sudden voltage failures. It is usually prudent to install some form of protection device between the mains and the computer. Mains-born interference can take …
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- 32 p. ; 21 cm
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- PMB LU 1985 - 24
Geochemical practice in the exploration of soil and gas
Nonnally oil or gas occupy only a small fraction of the total pore -1. volume in the subsut!l:-ece; the rest of the spJlce contains water_.Sometimes the water associated with the oil is fresh, but usually it is salty. In general, the deeper and older a rock is, the saltier the water it contains. Thr origin of oil-field brines is not well understoo…
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- 34 p. : ill. ; 21 cm
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- PMB LU 1976 - 4
A generalized classification of some tungsten deposits and their relation to …
In recent years two new classifications of Cale Alkalie granitoids have evolved in the eastern hemisphere and are currently influencing exploration concepts, particularly in SE Asia. This note arises from considerations of their possible appliction to the further exploration of the pre-Quaternary part of Sumatra for which a Regional Geolog~cal an…
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- 6 p. : 21 cm
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- PMB LU 1981 - 12
Unit 4 geochemical reactions unit 5 geochemical cycles unit 6 applications of…
In the first place, most chemists work with materials whose chemical formulae are fairly simple, and in which the ratio of the numbers of atoms of one kind to the numbers of atoms of another are small integers, or fractions of small integers. Among such compounds are NaCl, Al203 and Si02• By contrast, the geochemist often stud…
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- 38 p. : ill. ; 21 cm
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- PMB LU 1985 - 15
Results of the 1976 orientation stream sediment geochemical survey in north-e…
Orientation studies indicate that stream-sediment geochemistry is a potentially useful exploration tec~ique in the Kepala Burung region of Irian Jaya, Indonesia. Previously located uranium anomalies and small zones of known base-metal sulphide. mineralisation, are reflected in anomalous concen• trations of these elements in•the stream sedim…
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- Deskripsi Fisik
- 18 p. : ill. ; 21 cm
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- No. Panggil
- PMB LU 1977 - 5
Geochemical prospecting for mineral deposits
The recognition of the nature of primary and secondary dispersion halos and trains associated with mineral deposits. Although haloesand trains were known for centuries to be associated with metal deposits, the work carried out in the U.S.S.R and Scandinavia in the 1930's and early 1940's systematised the data and permitted it to be used in the most …
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- 57 p. : ill. ; 21 cm
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- PMB 622.13 REA g
Geochemical Analytical Standards
Numerous and diverse errors are encountered in applied geochemistry from field collection, sample preparation and chemical analysis. Typographic errors are also involed but frequently neglected. These errors must be controlled and monitored and the quality of the results checked before the results are processed and displayed on maps. This to ensure …
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- 47 halaman, tidak berwarna, cover biru muda
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- PMB LU 1989 - 8
Geochemical prospecting for petroleum and natural gas deposits
Geochemical prospecting (or exploration) methods for petroleum and natural gas deposits at and near the surface of the ground and the offshore area have not achieved the popularity of geophysical methods. Geochemical methods have been used widely in both the united states and the soviet union, and many new discoveries have been reposrted from these …
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- 61 p. ; 18 cm
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- No. Panggil
- PMB LU 1975 - 32
Karya Umum 
Filsafat 
Agama 
Ilmu-ilmu Sosial 
Bahasa 
Ilmu-ilmu Murni 
Ilmu-ilmu Terapan 
Kesenian, Hiburan, dan Olahraga 
Kesusastraan 
Geografi dan Sejarah