RUBIDIUM-STRONTIUM DATING在英语中的意思是什么？
铷锶约会
铷 - 锶测年方法是科学家使用的辐射测年技术，用于从其含有铷和锶特定同位素的量中确定岩石和矿物的年龄。 这个过程的发展得到了德国化学家奥托·哈恩和弗里茨·斯特拉斯曼（Fritz Strassmann）的帮助，后者随后在1938年12月发现了核裂变。铷 - 锶同位素体系的效用是由于87Rb衰变到87Sr，半衰期 488亿年。 此外，Rb是高度不相容的元素，在地幔的分级结晶期间，它停留在岩浆熔体中，而不是成为地幔矿物的一部分。 放射性子女87Sr是在这种衰变过程中产生的，并且是在太阳系创造之前产生的恒星核合成的。 在给定的地质环境中不同的矿物质可以获得明显不同的放射性锶-87与天然存在的比例
在英语 词典里rubidium-strontium dating的定义
字典中的铷 - 锶年龄定义是根据固定量的放射性同位素87Rb在天然铷中的出现来确定矿物的年龄的技术，该放射性同位素87Rb衰变为稳定的锶同位素87Sr，半衰期为4.7× 1011年。 这些同位素比率的测量因此给出了矿物的年龄，年龄可高达约4×109年。
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1
Library of Congress Subject Headings
R3] _ Isotopes UF Isotopic rubidium Rubidium isotopes _ _ Decay NT Rubidium-
strontium dating _ _ Spectra Rubidium isotopes USE Rubidium-Isotopes
Rubidium-strontium dating [QE508] UF Dating, Rubidium-strontium strontium-
rubidium ...
2
The United States Geological Survey in Alaska: ...
To determine the age of emplacement and timing of metamorphism, samples of
the plutons have been collected for whole-rock rubidium- strontium dating, and
samples of skarn and amphibolite zones in the dominantly greenschist- facies ...
Kathleen M. Johnson,
1979
3
Library of Congress Subject Headings
... rubidium Rubidium isotopes — — Decay sa Rubidium-strontium dating — —
Spectra Rubidium isotopes See Rubidium—Isotopes Rubidium-strontium dating (
015508) x Dating, Rubidium-strontium Strontium-rubidium dating xx Radioactive
...
Library of Congress. Subject Cataloging Division,
1980
4
Library of Congress Subject Headings
... Radiometric USE Radioactive dating Dating, Rubidium-strontium USE
Rubidium-strontium dating Dating, Samarium-neodymium USE Samarium-
neodymium dating Dating, Thermoluminescence USE Thermoluminescence
dating Dating, ...
Library of Congress,
2003
5
Evolution Impossible: 12 Reasons Why Evolution Cannot ...
One example is Pleistocene to recent lava dated as less than 1.6 million years
old from its position in the rock layers, which has been dated as 773 million years
old, using rubidium-strontium dating. Upper Miocene to Pliocene lava was dated
...
6
The Solid Earth: An Introduction to Global Geophysics
Rubidium-strontium dating is discussed first: it is simple and a good system to
use to illustrate the problems and pitfalls of geochronology. 6.3 Rubidium-
strontium For the decay of 87Rb to 87Sr, Eq. (6. 1 1 ) is [87Sr]now = [87Rb]now(e;
'-1) ...
7
Physics and Chemistry of the Solar System
Another extremely useful probe of the history of meteorites is rubidium–strontium
dating, based on the beta decay of 87Rb to 87Sr. This dating technique was
outlined in Fig. II.26. By reference to this figure, we can see that the minerals in
any ...
8
Radioactive and Stable Isotope Geology
H.-G. Attendorn, Robert Bowen. 7 Rubidium- strontium dating 7.1
GEOCHEMISTRY Rubidium (Latin rubidus meaning deep red) is an element with
relative atomic mass of 85.4678 and atomic number 37. A soft and highly reactive
white metal, ...
H.-G. Attendorn, Robert Bowen,
1997
9
The Facts on File Dictionary of Inorganic Chemistry
Rubidium–strontium dating relies on the decay rate of 87Rb. Symbol: Rb; m.p.
39.05°C; b.p. 688°C; r.d. 1.532 (20°C); p.n. 37; most common isotope 85Rb;
r.a.m. 85.4678. rubidium–strontium dating A technique for dating rocks. It
depends on ...
... concept behind rubidium—strontium dating is that the original rock has some
initial amount of 87Rb, some initial ratio of 87Sr/868r and some initial ratio of
87Rb/ge'Sr. These ratios evolve through time in a predictable manner. Over time,
the ...
Kevin Hefferan, John O'Brien,
2010
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Meet the atheist ... who believes in God
Rubidium-strontium dating is not as precise as the uranium-lead method, with ... Oh, I forgot, that same physics and chemistry that is wrong about dating, works ... «CNN, 六月 14»