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Dec 01, 1983 we note that a maui lava of the post-erosional hana alkalic series, analyzed by kaneoka and takaoka 10, gives a helium ratio scaled as in section 3.3, only 14 times atmospheric as would be predicted by chen and frey. however, the shield lavas would have to have extraordinarily high helium ratios to match the model. 420.
Dec 07, 2006 young-earth creationists consider the helium diffusion studies of d. russell humphreys and others to be one of their greatest achievements in arguing for a 6,000 year old earth. this critique shows that these studies are extensively flawed and include serious miscalculations in their data, sampling the wrong rock type from the fenton hill site, failing to eliminate possible contamination from.
Dec 09, 2016 the 3 he 4 he ratio in helium released by crushing from the pre-heated sample, 127 11 10 8, was found to be similar to the bulk value, 118 10 8 , and to that in helium liberated by crushing of the original sample, 104 8 10.
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In figure 3 1409.83 m, crushing after ... failure is observed during high pressure triaxial rock deformation experiments. ... of helium concentration in initial samples allowed us to determine.
Jul 01, 2016 the magmatic contribution was inferred from a 6 min in-vacuo crushing of an aliquot of sample sp12-02d that yielded concentrations of 0.29 0.09 mat g 1 and 17.0 0.6 10 3 mat g 1 for 3 he and 4 he, respectively, which represented a 3 he 4 he isotopic ratio of 12 4 ra. reported errors 1 integrate ca. 3 uncertainty on 3.
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O f helium 3 he 4 h e ratio s ar e on e hal f thos e typica l o f mor b glasse s an d fluid s fro m mid-ocea n ridge s an d on e sixt h tha t o f th e icelan d maximum mentione d above . th e 4.
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Retenti on study in the rock-fo rming mine rals and in th e rock-w ater sys- tems e.g. , tolstikh in et al., 2011 . since the ear ly papers by gerl ing et al. 1 971, 1976 a speci cr o l eo.
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The helium isotopic ratio varies between 1340 and 6300 rra between 115 and 539 with 4he content around 3-8 10-10 ccstpg, confirming that cosmogenic helium can be extracted by.
The retention coefficient l in panel b is the ratio of measured to calculated maximum in-situ produced, table 3 concentration. a ratio of 1 would be expected between measured and calculated 3.
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