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1
Radiogenic Isotope Geology
New and updated edition of a popular textbook on the geological applications of radiogenic isotopes.
2
Radiogenic Isotopes in Geologic Processes
This book presents a modern approach of radiogenic isotope methods for solutions on problems in theoretical and practical geology.
Sergei V. Rasskazov, Sergeĭ Borisovich Brandt, Ivan S. Brandt, 2009
3
Radiogenic isotope geochemistry of sedimentary and aquatic ...
This book takes the reader through the complete weathering cycle, from the continents to the oceans, from the perspective of modern radiogenic isotope geochemistry.
Peter Stille, Graham Shields, 1997
4
Estimating
radiogenic cancer risks
We critically examine here the information in those reports, and some ancillary
information, with the aim of developing a revised methodology for EPA's
calculations of radiogenic cancer risks. Radiogenic benign neoplasm risks are
not ...
5
Estimating uncertainties in
radiogenic cancer risk review of ...
The Subcommittee commends EPA for producing a generally credible approach
to characterizing the uncertainty in radiogenic cancer risk estimates. References
to the corresponding sections of the detailed discussion in Section 3 appear in ...
United States, Environmental Protection Agency, Science Advisory Board
6
Mantle Convection in the Earth and Planets 2 Volume Set
qr = 22±2mWm~2 and/ir = 7. 2 ±0.7 km; and for the eastern Canadian shield data
we get qr = 30.5±1.8mWm~2 andhr — 7.1 ±1.7 km. In each case the thickness of
the radiogenic layer is small compared to the thickness of the continental crust.
Gerald Schubert, Donald L. Turcotte, Peter Olson, 2001
7
Basin Analysis: Principles and Applications
Despite the fact that the very large volume of the mantle means that it contributes
80% of the Earth's radiogenic heat, it is the crustal contribution that is of
importance in basin analysis and that determines the continental geotherm. The
question ...
Philip A. Allen, John R. Allen, 2009
8
Cenozoic Volcanism in the Mediterranean Area
The Sr isotopic ratios of radiogenic Pb volcanics are more heterogeneous, from
87Sr/86Sr = 0.70315 of Guspini to 87Sr/86Sr = 0.70401 of Rio Girone and 87Sr/
86Sr = 0.70437 of Capo Ferrato (Fig. 6A). CIPW quartz-normative samples have
...
Luigi Beccaluva, Gianluca Bianchini, B. Marjorie Wilson, 2007
9
The Nature of Magmatism in the Appalachian Orogen
The La-rich arc group is generally more radiogenic (206Pb/204Pb = 17.87 to
19.33) than the former group, and also displays large variations in 207Pb/204Pb
ratios (Fig. 1 1 A). Although these two arc-like groups generally have distinct Pb ...
A. Krishna Sinha, Joseph Bruce Whalen, John P. Hogan, 1997
10
Dating and Duration of Fluid Flow and Fluid-rock Interaction
On the other hand, the radiogenic isotopic ratios of 40Ar* and 2lNe* over 4He
provide insights on the sources and mechanisms of release of the radiogenic
noble gases into waters, which depend on their respective closure temperatures
in ...
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Plate tectonics may depend on 3 key elements
“Bulk composition determines its uranium, thorium and potassium abundance, which governs its internal radiogenic heating and ultimately dictates whether or ... «Futurity: Research News, 七月 15»
Blank Space no more: New Horizons makes it to Pluto
Earth is powered by two heat sources: radiogenic heat – that is, heat produced by the natural decay of radioactive elements – and primordial heat kept inside the ... «The London Economic, 七月 15»
Isotope geochemistry
Radiogenic isotopes are the basis of geochronology, as well as being powerful geochemical tracers. Both fields have benefited from recent advances in analysis ... «Royal Society of Chemistry, 五月 15»
Highly Radiogenic: Langham Research Centre Interviewed
A quartet of BBC radio producers and broadcasters have taken up the mantle of the Radiophonic Workshop and set about performing classic works of musique ... «The Quietus, 五月 15»
Early Earth collision could clear up two geological mysteries
... ratio of neodymium-142 to neodymium-144 in rocks on Earth is higher than in chondrites.2 Neodymium-142 is a radiogenic isotope formed from the α-decay of ... «Royal Society of Chemistry, 四月 15»
Ferromanganese Crusts Record Past Arctic Climate
We present the first continuous records of dissolved radiogenic neodymium, hafnium, and lead isotope compositions of deep waters in the western Arctic Ocean, ... «reportingclimatescience.com, 四月 15»
New age for Panama closure challenges long-held theories
The analytical work was performed in WSU's radiogenic lab using laser ablation technology, which has a laser beam vaporize a sample for spectroscopic ... «WSU News, 四月 15»
LPSC 2015: First results from Dawn at Ceres: provisional place …
... has lost a lot of near-surface volatiles due to impacts; or there has been true polar wander; or lots of dessication during an early period of radiogenic heating. «The Planetary Society, 三月 15»
Polish “Vampires” Discovered in Crypts, and They May Have Had …
... the researchers tested permanent molars retrieved from the corpses, using radiogenic strontium isotope ratios from archaeological dental enamel to trace their ... «Science Times, 十一月 14»
Fukushima's Children Aren't Dying
“These actions will have limited exposure to radioiodine by inhalation and by ingestion,” making radiogenic thyroid cancer extremely unlikely. Indeed, thyroid ... «The New American, 十月 14»
