Screen LibraryHelium isotopes in nature /
Helium Isotopes in Nature.
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| Main Authors: | |
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| Corporate Authors: | |
| Group Author: | |
| Published: |
Elsevier ; Distributors for the U.S. and Canada : Elsevier Science Pub. Co.,
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| Publisher Address: | Amsterdam ; New York : New York, N.Y. : |
| Publication Dates: | 1984. |
| Literature type: | eBook |
| Language: |
English Russian |
| Series: |
Developments in geochemistry ;
3 |
| Subjects: | |
| Online Access: |
http://www.sciencedirect.com/science/bookseries/09213198/3 |
| Summary: |
Helium Isotopes in Nature. |
| Carrier Form: | 1 online resource (xiv, 273 pages) : illustrations. |
| Bibliography: | Includes bibliographical references (pages 249-267) and index. |
| ISBN: |
9781483289809 148328980X |
| Index Number: | QE516 |
| CLC: | O613.11 |
| Contents: |
Front Cover; Helium Isotopes in Nature; Copyright Page; PREFACE; Table of Contents; Chapter 1. COLLECTION AND PREPARATION OF NATURAL HELIUM SAMPLES FOR MASS-SPECTROMETRIC ANALYSIS; 1.1. Vessels for collecting and long storage of natural helium samples; 1.2. Collecting of gaseous and fluid samples; 1.3. Helium extraction from fluid microinclusions in minerals; 1.4. Helium extraction from solids; 1.5. Purification of helium from accompanying gases; 1.6. A modern all-metal system for extraction and purification of helium; Chapter 2. MEASUREMENT OF HELIUM CONTENTS IN SAMPLES. HELIUM STANDARDS WITH A GIVEN ISOTOPE RATIO2.1. Measurement of helium contents in terrestrial gases; 2.2. Preparation of standard mixtures of 3He and 4He; 2.3. Helium isotope composition in the lower atmosphere; 2.4. Universal mass-spectrometer leak-in system for helium isotope studies; Chapter 3. PECULIAR FEATURES OF MASS-SPECTROMETRIC ISOTOPE ANALYSES OF TERRESTRIAL HELIUM; 3.1. Resolution of a mass spectrometer; 3.2. Background of 4He scattered ions and its suppression in the measurements of very low 3He/4He ratios; 3.3. Background of scattered HD+ and H3+ ions. 3.4. ""Memory"" and other factors affecting the measurements of 3He and 4He abundance in terrestrial samples3.5. Two-beam mode of operation and static mode of pumping a mass spectrometer; 3.6. Requirements for a mass spectrometer used for natural helium isotope measurements; Chapter 4. ISOTOPIC ANALYSIS OF NATURAL HELIUM BY A STATIC MAGNETIC MASS SPECTROMETER; 4.1. One-stage magnetic static mass spectrometer; 4.2. Multi-stage static mass spectrometers; 4.3. Results obtained by means of magnetic static mass spectrometers; Chapter 5. MAGNETIC RESONANCE MASS SPECTROMETER (MRMS). 5.1. Design and operating principles of the MRMS5.2. Ways to ensure the analytical parameters; 5.3. A laboratory mass spectrometer; 5.4. Industrial magnetic resonance mass spectrometer MI 9302; 5.5. Solution of the most difficult problems of helium isotope studies achieved with the MRMS; Chapter 6. LIGHT NOBLE GAS ISOTOPES IN METEORITES; 6.1. Meteorites and the earth; 6.2. Primordial noble gases in meteorites; 6.3. Isotopes of light noble gases in meteorites; 6.4. Noble gases in the terrestrial atmosphere; Chapter 7. HELIUM ISOTOPES IN THE EARTH'S MANTLE. 7.1. Abundance of 4He and 3He in radiogenic helium7.2. Helium isotopes in mantle materials; 7.3. On the nature of 3He excess in the earth's mantle; 7.4. 3He/4He ratio and 20Ne excess in terrestrial samples; 7.5. Helium/argon isotope relationship; Chapter 8. HELIUM ISOTOPES IN ROCKS, WATERS AND GASES OF THE EARTH'S CRUST; 8.1. Distribution of 3He and 4He in rocks of the earth's crust; 8.2. The distribution of 3He and 4He in mineral fractions; 8.3. Helium isotopes in some minerals; 8.4. Distribution and origin of helium and argon isotopes in gas-liquid microinclusions in minerals. |