- Home
- Documents
- Rubidium/Strontium Radiometric Dating By Paul Nethercott Creation Ministries International

prev

next

of 40

View

42Download

4

Embed Size (px)

DESCRIPTION

Rubidium/Strontium Radiometric Dating By Paul Nethercott Creation Ministries International April 2013. www.creation.com. Introduction How reliable is radiometric dating? We are repeatedly told that it proves the Earth to be billions of years - PowerPoint PPT Presentation

Transcript

Slide 1

Rubidium/Strontium Radiometric Dating

By Paul Nethercott

Creation Ministries International

April 2013www.creation.comIntroduction

How reliable is radiometric dating? We are repeatedly told that it proves the Earth to be billions of years old. If radiometric dating is reliable than it should not contradict the evolutionary model. According to the Big Bang theory the age of the Universe is 10 to 15 billion years.1 Standard evolutionist publications give the age of the universe as 13.75 Billion years. 2, 3Standard evolutionist geology views the Earth as being 4.5 billion years old. Here are some quotes from popular text:

Theage of the Earthis4.54 0.05billionyears. 4 The Solar System, formed between 4.53 and 4.58 billion years ago. 1 The age of 4.54 billion years found for the Solar System and Earth. 1

A valid age for the Earth of 4.55 billion years. 5, 6Evolutionists give the age of the galaxy as

11 to 13 billion years for the age of the Milky Way Galaxy. 1, 7

Let us remember this as we look at the following dating as given in secular science journals.

Creationist Predictions

Isotopic ratios give random spread of meaningless dates

Impossibly old dates.

Older than the evolutionist age of the Earth

Older than the evolutionist age of the Solar System

Older than the evolutionist age of the Galaxy

Older than the evolutionist age of the Universe

Older than the evolutionist age of the Big Bang

Negative or Future ages

Rocks that exist in the present formed in the future

Different dating methods disagree with each otherEvolutionist Predictions

Isotopic ratios give uniform meaningful dates

Dates are not impossibly old.

Younger than the evolutionist age of the Earth

Younger than the evolutionist age of the Solar System

Younger than the evolutionist age of the Galaxy

Younger than the evolutionist age of the Universe

Younger than the Big Bang

No Negative or Future ages

Rocks that exist in the present formed in the past

Different dating methods agree with each other

http://en.wikipedia.org/wiki/Geological_timeThe Geological Time ScaleThe Age Of The Earth4,500 Million Years Old The Origin Of Life3,500 Million Years AgoThe Biblical Time Scale

http://en.wikipedia.org/wiki/Geological_timeThe Evolution Of Life Time Scale

http://en.wikipedia.org/wiki/Solar_system_formationSolar System Formation

Began 4,500 Million Years Agohttp://en.wikipedia.org/wiki/Big_BangThe Big Bang Theory

13,700 Million Year Age For The UniverseIf we run the isotopic ratios give in standard geology magazines through the computer program Isoplot 7 we find that the Uranium/Thorium/Lead isotopic ratios in the rocks disagree radically with the Rubidium/Strontium ages. The U/Th/Pb ratios give ages older than the evolutionist age of the Earth, Solar System, Galaxy and Universe. How can Earth rocks be dated as being older than the Big Bang?

If we use isotopic formulas 8-11 given in standard geology text we can arrive at ages from the Rb/Sr and Nd/Sm ratios. The formula for Rb/Sr age is given as:

Where t equals the age in years. l equals the decay constant. (87Sr/86Sr) = the current isotopic ratio. (87Sr/86Sr)0 = the initial isotopic ratio. (87Rb/86Sr) = the current isotopic ratio. The same is true for the formula below.

Here are examples of isotopic ratios taken from several articles in major geology magazines which give absolutely absurd dates.1. Sm-Nd And Rb-Sr Isotopic Systematics Of Ureilites

These meteorite samples were dated in 1991 by scientist from the University of Arizona, and the University of California. According to the article 15 the age of the sample is:

Whole-rock samples of these ureilites are highly depleted assemblages (147Sm/144Nd = 0.33-0.35) having Sm-Nd model ages consistent with 4.55 Ga.

If we run the Rubidium/Strontium isotope ratios listed in the article 16 through Microsoft Excel we get the following values:DatingAgeAgeSummary147Sm/144Nd87Rb/86SrAverage4,1707,759Maximum4,91219,652Minimum2,9292,423Difference1,98317,22887Rb/86Sr87Rb/86SrAge SortedAge Sorted19,65210,13917,4198,49014,8127,71413,7946,81911,0155,377Rb/Sr, Maximum AgesSm/Nd Ages Versus Rb/Sr Ages2. Sr, Nd, Pb And Os Isotopes

These samples from the Precambrian crystalline basement of Schirmacher Oasis, East Antarctica were dated in 2001 by scientist from Germany and Switzerland. 17 According to the essay 18 the age of the sample is 1500 million years. If we run the Lead and Rubidium isotope ratios 19 through Isoplot and Microsoft Excel we get the following values:Rb/Sr, Maximum AgesSm/Nd Ages Versus Rb/Sr AgesDatingAgeAgeAgeAgeSummary207Pb/206Pb206Pb/238U87Rb/86Sr147Sm/144NdAverage5,0699,857446447Maximum5,12311,602448454Minimum5,0266,403444439Difference975,198314Age SortedAge Sorted206Pb/238U206Pb/238U11,60210,30311,1939,53411,1588,09510,5686,403The Uranium/Lead dates are 10 to 20 times older than the other two methods. The authors choice of the true age is just a guess. Five dates are older than the evolutionist age [10 Billion Years] of the Milky Way galaxy.3. Sr-Nd-Pb Isotope Systematics Of Mantle Xenoliths

These samples Somerset Island, Canadian Arctic were dated in 2001 by scientist from the University of Quebec. 20 According to the essay 20 the age of the sample is Sr, Nd, and Pb isotopic compositions were determined for a suite of Archean garnet peridotite and garnet pyroxenite xenoliths and their host Nikos kimberlite (100 Ma) from Somerset Island. If we run the Lead and Rubidium isotope ratios 21 through Isoplot and Microsoft Excel we get the following values:U/Pb, Maximum AgesMultiple Dating SummaryThe Uranium/Lead dates are 10 to 150 times older than the other two methods.

The authors choice of the true age is just a guess.

Eighteen dates are older than the evolutionist age [4.5 Billion Years] of the Earth.Dating87Rb/86Sr147Sm/144Nd206Pb/238U207Pb/206PbSummaryAgeAgeAgeAgeAverage2431004,3494,974Maximum2,5231019,6445,092Minimum65991,1734,904Difference2,45821,99131206Pb/238U207Pb/206PbAge SortedAge Sorted9,6445,0928,2185,0017,3594,9966,4174,9926,2804,9895,2734,9875,2314,9865,2134,9855,0334,9804. Strontium, Neodymium, And Lead Isotope Variations

These samples from the Alpha Ridge, central Arctic Ocean were dated in 1997 by scientist from the University of Wisconsin. 22 According to the essay 22 the age of the sample is

Provenance changes of silicate sediment deposited during the Late Cenozoic (5-0 Ma).

If we run the Lead 207/206 isotope ratios 23 through Isoplot and Microsoft Excel we get the following values:Lead 207/206 Dating SummaryAccording to the essay the true age by the Rb/Sr method is just 5 million years old. That is 1,000 times younger than the Lead 207/206 dating method.Average4,986Maximum5,239Minimum4,960Std Deviation405. Crystallization History Of Rhyolites At Long Valley

These samples from Long Valley, California were dated in 2002 by scientist from England and The Netherlands. 24 According to the essay 24 the age of the sample is

In this study, we present 87Rb/86Sr and 230Th/238U isotope analyses of glasses and phenocrysts from postcaldera rhyolites erupted between 150 to 100 ka from the Long Valley magmatic system.

According to various dating charts 25 the samples are only 100 thousand years old. If we run the Lead and Rubidium isotope ratios 26 through Isoplot and Microsoft Excel we get the following values:Multiple Dating SummaryThe Lead 207/206 date is 49,500 times the so called true age. The Rubidium/Strontium dates are way off to.DatingAgeAgeSummary87Rb/86Sr207Pb/206PbAverage-24,953Maximum54,954Minimum-164,951Difference2136. FluidRock Interaction During Progressive Migration

These samples from the Cretaceous Okorusu carbonatite complex (Namibia) were dated in 2003 by scientist from England, Germany and Brazil. 27 According to the essay 27 the age of the sample is

A crush-leach experiment for fluid inclusions in the hydrothermal quartz yielded a Rb-Sr isochron age of 103 Ma.

If we run the Lead and Rubidium isotope ratios 28 through Isoplot and Microsoft Excel we get the following values:Multiple Dating SummaryDating87Rb/86Sr206Pb/238U207Pb/235U207Pb/206PbSummaryAgeAgeAgeAgeAverage3210,8745,2144,598Maximum35136,76410,6385,019Minimum01383282,047Difference35136,62610,3102,9726. FluidRock Interaction During Progressive Migration

The 206Pb/238U dates are between 29 to 360 times to old. The 207Pb/235U dates are between 42 to 106 times to old. The 207Pb/206Pb dates are all 50 times to old. The Rubidium/Strontium dates are way off to.Multiple Dating Summary206Pb/238U207Pb/235U207Pb/206PbAge SortedAge SortedAge Sorted36,76410,6385,01925,3538,8165,01322,7288,3725,00017,1107,4494,9907,1455,5174,9434,3214,6324,9372,9554,2574,8887. Constraints On The U-Pb Isotopic Systematics

These samples from the Martian meteorite Zagami were dated in 2005 by scientist from the University of New Mexico. 29 According to the essay 29 the age of the sample is

Although the Rb-Sr and Sm-Nd systems define concordant crystallization ages of 166 +-6 Ma and 166 +- 12 Ma, respectively, the U-Pb isotopic system is disturbed. Nevertheless, an age of 156 Ma is derived from the 238U-206Pb isotopic system from the purest mineral fractions (maskelynite and pyroxene).

If we run the Lead and Rubidium isotope ratios 30 through Isoplot and Microsoft Excel we get the following values:Multiple Dating SummaryDatingAgeAgeAgeSummary87Rb/86Sr207Pb/206Pb206Pb/238UAverage4,5015,0812,826Maximum6,1865,2046,566Minimum4,0714,962218Difference2,1142426,3488. Age And Radiogenic Isotopic Systematics

These samples from t