Concordia Isochron Dating

By Paul Nethercott

May 2012

 

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, 3

 

Standard evolutionist geology views the Earth as being 4.5 billion years old. Here are some quotes from popular text: “The age of the Earth is 4.54 ± 0.05 billion years.” 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, 6

 

Evolutionists 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.

 

 

Age and Mineralogy of Supergene Uranium

Theses rocks from the Bohemian Massif, South East Germany 8 were dated in 2010 using the Uranium-Lead  dating method. The table in the essay has three columns of isotopic ratios, 206Pb/238U, 207Pb/235U and 207Pb/206Pb. You will notice in Table 4 the original article 9 that there are dates besides the 206Pb/238U and 207Pb/235U ratios but no dates beside the 207Pb/206Pb ratios. The first two sets of ratios and dates agree with each other between 94 and 101 percent accuracy. If we use the computer program Isoplot 10 and calculate the ages of the 207Pb/206Pb ratios we see why not dates have been put beside them. In Table 1 we can see that many dates are negative. That is logically impossible. How can the rock have formed millions of years in the future?

 

Table 1

Sample

Pb-206/207

Sample

Pb-206/207

Name

Negative Ages

Name

Negative Ages

A30

-29

A06

-29

A35

-8

A10

-45

A04

-18

A11

-83

A07

-8

A12

-23

A10

-8

A13

-133

A11

-13

A17

-116

A18

-8

A19

-72

A19

-18

A21

-2

A20

-8

A26

-34

 

 

A27

-13

 

 

A29

-45

 

 

A39

-8

 

 

A40

3

 

 

A41

-50

 

In Table 2 we can see that the 207Pb/206Pb dates are between 1,000 to 21,000 percent discordant when compared to the two Uranium-Lead dating methods. Here is just one of many times where geology journals use selective evidence to try and prove evolution. If the third column or ratios were dated and added to the essay you can see how silly it would look.

 


 

Table 2

Sample

Difference

Sample

Difference

Name

Percent

Name

Percent

A26

1,087

A01

1,006

A29

1,192

A16

1,073

A25

1,202

A32

1,891

A41

1,338

A31

2,067

A07

1,964

A30

3,070

A19

2,385

A29

3,539

A10

2,389

A33

10,452

A22

2,551

A36

16,112

A18

3,126

 

 

A30

3,129

 

 

A24

3,360

 

 

A09

3,612

 

 

A13

4,616

 

 

A05

4,881

 

 

A06

4,982

 

 

A11

5,350

 

 

A25

5,479

 

 

A08

5,628

 

 

A42

6,215

 

 

A04

6,551

 

 

A22

7,031

 

 

A43

10,253

 

 

A17

10,673

 

 

A21

15,256

 

 

A20

21,500

 

 

 

 

207Pb–206Pb and 40Ar–39Ar ages from SW Montana

These rocks from North America were dated in 2002 using both 11 40Argon/39Argon and Lead-Lead dating methods. Again the no dates beside the 207Pb/206Pb ratios. If we add dates we soon see why. The first table in his article has dates 12 using the 40Ar–39Ar dating method. The third table 13 has the 207Pb/206Pb ratios.

 

Table 3

Sample

K-Ar Dating

K-Ar Dating

Pb Dating

Pb Dating

Name

Max Age

Min Age

Max Age

Min Age

RRCR2

1,818

1,695

4,471

1,895

RRSW1

1,806

1,740

5,011

4,032

HLM2

1,853

1,620

4,522

1,848

TRMR2

1,729

1,199

5,049

2,644

 

If we use the computer program Isoplot and calculate the ages of the 207Pb/206Pb ratios we see why not dates have been put beside them. The Potassium-Argon and Lead-Lead dating methods are extremely discordant. The author’s use of data is very selective. Dates that agree are added and those that do not are omitted. This happens over and over in geology magazines. We can see from the table below that many dates are older than the evolutionist view of the age of Earth. How can such an absurdity be possible? How can the Earth be older than itself?

.


 

Table 4

Sample

Million

Age

Name

Years

Category

RRSW1

5,005

Older Than The Solar System

RRSW1

5,011

Older Than The Solar System

RRSW1

4,939

Older Than Earth

TRMR2

5,015

Older Than The Solar System

TRMR2

5,049

Older Than The Solar System

207Pb/206Pb Dates

 

Uranium-Thorium-Lead Dating

This dating 14 was done in 1999 on meteorite samples by the Department of Earth and Planetary Sciences, Hiroshima University in Japan. Below we can see the isotopic ratios take from Table 2 in the original article. 15 Using the computer program Isoplot we calculate the ages of the 207Pb/206Pb ratios we see why not dates have been put beside them.

 

Table 5

Pb-207

Million

Age

Pb-206

Years

Category

0.889

5,071

Older Than Solar System

0.916

5,114

Older Than Solar System

0.876

5,051

Older Than Solar System

0.869

5,039

Older Than Solar System

0.922

5,123

Older Than Solar System

0.867

5,036

Older Than Solar System

5,051 to 5,123 million years old.

 

Diagram 1

 

According to the Iscohron [1, 2 and 3] diagrams in the article 16 the meteorites are only supposed to be 200 million years old! This means that the dates are 4,800 million years in error. The ratio of the so called “true” age versus the 207Pb/206Pb age is 25 to 1. The author deliberately chose not to put the dates beside the isotopic ratios because they would show how utterly ridiculous the whole system is. According to the Iscohron diagram in the article, the maximum error level is only 83 million years. The error level is 4934 years if we compare it to the 207Pb/206Pb age. This means the error level is 59 times in error.

 

 

 

 

Pb–Pb Dating Of Chondrules

The meteorite samples 17 were dates in 2009 by scientists form the Geological Museum, University of Copenhagen and The University of Texas at Austin. If we use Isoplot and run some of the 207Pb/206Pb ratios given in the article 18 through Microsoft Excel we see that many of the ratios produce ages over 5 billion years old.

 

Below we can see a Concordia diagram taken from the article 19 that shows the age of the rocks to be 4,565 million years old. As you can see the diagram claims that the error margins is only 810,000 years! If we add the 207Pb/206Pb ratios dates we can see that the diagram is out by 550 million years. That means the error margin given in the diagram is 677 times to short!

Diagram 2

 


 

Table 6

Sample

Age

Age

Number

Million Years

Category

C2-L1

5,194

Older Than Solar System

C2-L2

5,190

Older Than Solar System

C2-L3

5,089

Older Than Solar System

C2-L6

5,020

Older Than Solar System

C4

5,174

Older Than Solar System

C4-L6

5,013

Older Than Solar System

C4-L7

5,094

Older Than Solar System

C4-L8

5,051

Older Than Solar System

C7

5,091

Older Than Solar System

C7-L7

5,032

Older Than Solar System

C7-L8

5,021

Older Than Solar System

C12-10

5,050

Older Than Solar System

C12-L2

5,063

Older Than Solar System

C12-L3

5,206

Older Than Solar System

C12-L5

5,002

Older Than Solar System

5,002 to 5,206 million years old.

 

 

Pb–Pb Dating Constraints

This dating 20 was done in 2007 on meteorite samples by the Washington State University, Department of Geology. We can see from table seven which data in my essay the data was obtained from in Audrey Bouvier’s essay.

Table 7

Her Essay

My Essay

Table 2, Page 1587

Table 8

Table 3, Page 1588

Table 9

Table 4, Page 1589

Table 10

Table 5, Page 1590

Table 11

Table 6, Page 1590

Table 12

 

One of the concordia diagrams 21 in the article gives the following data:

 

Chondrules: 4565.5 ± 1.2 Ma

Pyroxenes:  4564.3 ± 0.8 Ma

Phosphates: 4562.7 ± 0.7 Ma

 

We are told that the date of 4,565 million years old is only one million years in error at the maximum. If run some of the 207Pb/206Pb ratios given in the article through Isoplot, we see that many of the ratios produce ages over 5 billion years old. The oldest is 5,379 million years. The error margin given in the article is 814 times in error.

 

 


 

Table 8

Sample

Age

Age

Name

Million Years

Category

Allende, Whole-rock-R0

5,334

Older Than Solar System

CV3, L0

5,325

Older Than Solar System

MNHN, L1

5,250

Older Than Solar System

MNHN, L2

5,258

Older Than Solar System

MNHN, L1

5,296

Older Than Solar System

MNHN, L2

5,029

Older Than Solar System

UCLA, L1

5,244

Older Than Solar System

UCLA, L1

5,244

Older Than Solar System

UCLA, L1

5,245

Older Than Solar System

UCLA, Olivine-R0

5,344

Older Than Solar System

UCLA, L0

5,336

Older Than Solar System

Murchison, Whole-rock-R0

5,333

Older Than Solar System

CM2, L0

5,321

Older Than Solar System

CM2, CAI-R0-Murch

5,238

Older Than Solar System

CM2, L0

5,267

Older Than Solar System

ENSL, Blanke

5,016

Older Than Solar System

Canyon-Diablo, Troilitef

5,379

Older Than Solar System

5,016 to 5,379 million years old.

 

 

Table 9

Pb-206/Pb-207

Age

Age

Ratio

Million Years

Category

0.86665

5,035

Older Than Solar System

0.84518

5,000

Older Than Solar System

0.86306

5,030

Older Than Solar System

0.84983

5,008

Older Than Solar System

0.96359

5,185

Older Than Solar System

0.98081

5,210

Older Than Solar System

0.91120

5,106

Older Than Solar System

1.09068

5,359

Older Than Solar System

0.87958

5,056

Older Than Solar System

0.96906

5,193

Older Than Solar System

5,000 to 5,359 million years old.

 

 

Table 10

Pb-206/Pb-207

Age

Age

Ratio

Million Years

Category

0.85705

5,020

Older Than Solar System

0.85871

5,022

Older Than Solar System

0.85888

5,023

Older Than Solar System

0.85681

5,019

Older Than Solar System

5,019 to 5,023 million years old.

 


 

Table 11

Pb-206/Pb-207

Age

Age

Ratio

Million Years

Category

0.90695

5,100

Older Than Solar System

0.86255

5,029

Older Than Solar System

0.85613

5,018

Older Than Solar System

0.86644

5,035

Older Than Solar System

0.92835

5,133

Older Than Solar System

0.91990

5,120

Older Than Solar System

0.92542

5,128

Older Than Solar System

0.90807

5,101

Older Than Solar System

0.90861

5,102

Older Than Solar System

5,018 to 5,133 million years old.

 

 

Table 12

Pb-206/Pb-207

Age

Age

Ratio

Million Years

Category

0.88990

5,073

Older Than Solar System

0.87125

5,043

Older Than Solar System

0.89581

5,082

Older Than Solar System

0.89269

5,077

Older Than Solar System

0.85401

5,015

Older Than Solar System

0.89561

5,082

Older Than Solar System

0.98433

5,215

Older Than Solar System

0.92618

5,129

Older Than Solar System

0.99857

5,235

Older Than Solar System

0.95025

5,166

Older Than Solar System

1.01559

5,259

Older Than Solar System

5,015 to 5,259 million years old.

 

 

U–Th–Pb Dating of Hydrothermal ore Deposits

This dating 22 was done in 2010 on rocks from eastern China. If we look at one of the tables 23 in the original essay we see four columns of isotopic data 207Pb/206Pb, 207Pb/235U, 206Pb/238U and 208Pb/232Th. Three have dates beside them but here are no dates beside the 207Pb/206Pb ratios. If we run the 207Pb/206Pb ratios through Isoplot we soon see why there are no dates beside them. According to the Concordia diagrams in the essay 24 the rocks are supposed to be 137 million years old with an average age of 120 million years.

 

Table 13

Sample

Maximum

Minimum

Average

Name

Age

Age

Age

TLS01

2,508

272

943

TLS02

346

8

254

S38

1,682

-294

354

S38

2,508

-139

899

S39

440

-325

94

207Pb/206Pb dates.

 

 

 

 

 

Table 14

Sample

Maximum

Minimum

Difference

Percentage

Age

Name

Age

Age

Age

Difference

Category

S38-1-a1

12,721

136

12,585

9,253%

Older Than Galaxy

S38-3-a1

7,663

136

7,527

5,534%

Older Than Solar System

S38-3-a2

11,457

44

11,413

25,938%

Older Than Galaxy

S38-3-a3

7,175

130

7,045

5,419%

Older Than Solar System

 

Some of the dates listed in the article 23 are older than the age of the Solar System and Galaxy! The author offers an explanation: “Due to the very low Th contents in the calcite-hosted titanite, no meaningful 208Pb/232Th ages were obtained.25

 

U–Th–Pb Dating of Yucca Mountain, Nevada

This dating was done 26 in 2008 by the U.S. Geological Survey office in Denver, Colorado. You will notice in Table 1 the original article 27 that there are no dates beside the 207Pb/206Pb ratios. If we use the computer program Isoplot and calculate the ages of the 207Pb/206Pb ratios we see why not dates have been put beside them.

 

Table 15

Sample

206-Pb/207-Pb

Age

Name

Million Years

Category

HD1939Pb1-Cc

5,474

Older Than Solar System

HD2055Pb6-Cc

5,632

Older Than Solar System

HD2055Pb7-Cc1

5,512

Older Than Solar System

HD2055Pb7-Cc2

5,523

Older Than Solar System

HD2055Pb10-Cc

5,587

Older Than Solar System

HD-2057-Pb1-Cc

7,864

Older Than Solar System

HD-2057-Pb2-Cc

6,577

Older Than Solar System

HD2059Pb4-Cc

7,474

Older Than Solar System

HD2062Pb2-Cc

5,528

Older Than Solar System

HD2062Pb3-Mn

5,450

Older Than Solar System

HD2065Pb4-Cc

7,202

Older Than Solar System

HD2074Pb1-Cc3

6,304

Older Than Solar System

HD2074Pb2-Cc1

7,569

Older Than Solar System

HD2074Pb2-Cc2

6,519

Older Than Solar System

HD2089APb2-Cc

6,973

Older Than Solar System

HD2089APb3-Mn

5,483

Older Than Solar System

HD2092Pb1-Cc

5,567

Older Than Solar System

HD2092Pb1-Mn

5,452

Older Than Solar System

HD2098Pb3-Cc

5,891

Older Than Solar System

HD2109Pb1-Cc

5,806

Older Than Solar System

HD2155Pb1-Cc

6,349

Older Than Solar System

HD2177Pb2-Cc

5,792

Older Than Solar System

HD2177Pb1-Mn

5,452

Older Than Solar System

HD2227Pb1-Cc

6,109

Older Than Solar System

HD2227Pb1-Mn

5,453

Older Than Solar System

HD2231Pb1-Cc

5,472

Older Than Solar System

HD2233Pb2-Ch1

7,933

Older Than Solar System

HD2233Pb2-Ch2

8,186

Older Than Solar System

HD2233Pb3-Ch

7,583

Older Than Solar System

HD2233Pb4-Ch

7,898

Older Than Solar System

5,450 to 8,186 million years old.

The dates are between 5,450 and 8,186 million years old. The average age is 6,320 million years old. Table 3 in the original article 28 has dates older than the universe and extreme discordance with up to 2 million percent. The average discordance is 212,000 perecent!

 

 

40Ar/39Ar and U-Th-Pb Dating

This meteorite sample 29 was dated in 1983 by Donald Bogard from the Johnson Space Center, Houston Texas. If we look in Table 5 in the original article we see that there are dates beside the 207Pb/208Pb ratios no dates beside the 207Pb/206Pb ratios. If we run the 207Pb/206Pb ratios through Isoplot we see that they uniformly differ with the 207Pb/208Pb dates given in the essay. The author’s choice to drop these dates and only have dates beside the 207Pb/208Pb ratios is just an arbitrary choice.

 

 

Table 16

Age

Age

Age

Pb-207/208

Pb-207/206

Category

4,560

5,370

Older Than Solar System

4,720

5,364

Older Than Solar System

4,560

5,364

Older Than Solar System

4,450

5,283

Older Than Solar System

4,700

5,371

Older Than Solar System

4,540

5,367

Older Than Solar System

4,410

5,082

Older Than Solar System

4,560

5,368

Older Than Solar System

4,700

5,367

Older Than Solar System

4,500

5,333

Older Than Solar System

 

 

Isotopic Lead Investigations

These meteorite samples were dated in 1975 by the Department of Geological Sciences, University of California, Santa Barbara, California. 31 From Table 2 in the original article we can calculate the 207Pb/206Pb ratios and then we run them through Isoplot. The ages are consistently older than the age of the Solar System.

 

 

Table 17

Sample

Pb 206/207

Age

Name

Ages

Category

7-1

5,175

Older Than Solar System

7-2

5,300

Older Than Solar System

7-3

5,287

Older Than Solar System

7-4

5,346

Older Than Solar System

4-1

5,337

Older Than Solar System

W-2

5,342

Older Than Solar System

Allende-1

5,297

Older Than Solar System

Allende-2

5,326

Older Than Solar System

Allende

5,262

Older Than Solar System

9-1

5,324

Older Than Solar System

M-2

5,322

Older Than Solar System

9-3

5,339

Older Than Solar System

9-4

5,334

Older Than Solar System

ChL-1 (IC)

5,138

Older Than Solar System

ChL-1 (ID)

5,137

Older Than Solar System

Ch3 (IC)

5,220

Older Than Solar System

Ch3 (ID)

5,227

Older Than Solar System

ChD (IC)

5,103

Older Than Solar System

ChD (ID)

5,099

Older Than Solar System

 

 

More Extraordinary Examples

Below are dates calculated from Pb207/206 isotopic ratios listed in standard geology magazines. The majority of ratios give dates of 5 billion years old. The model age put forward is radically different.

 

 

Reference

Maximum

Minimum

Model Age

Earth And Planetary Science Letters, Volume 245 (2006) 743–761

4,976

4,894

0.300

Earth And Planetary Science Letters, Volume 240 (2005) 605– 620

5,049

4,743

1

Geochimica Et Cosmochimica Acta 72 (2008) 5799–5818

5,008

4,871

3

Earth And Planetary Science Letters, Volume 267 (2008) 236–246

5,002

4,852

4

Mineralogy And Petrology (1993) 47, Pages 103-126

4,990

4,985

5

Journal of Petrology, 2011, Volume 52, Number 6, Pages 1143-1183

4,977

4,966

7

Earth And Planetary Science Letters, Volume 165 (1999) 117–127

4,975

4,933

10

Earth And Planetary Science Letters, Volume 306 (2011) 86–97

6,214

4,924

10

Geochimica Et Cosmochimica Acta, 2008, Volume 72, Pages 2067 - 2089

8,126

282

10

Journal of Petrology, August 2007, Pages 1-29

5,090

5,018

10

Journal of Petrology, 2007, Volume 48, Number 12, Pages 2261-2287

4,987

4,952

16

Chemical Geology, Volume 93 (1991) Pages 231-243

4,964

4,909

20

Earth And Planetarv Science Letters, Volume 46 (1980) Pages 221-232

5,040

4,712

20

Earth And Planetary Science Letters, Volume 301 (2011) 469–478

6,194

970

20

Geochemistry And Geophysics Geosystems, 2006, Vol 7, Number 8, Pages 1-29

5,009

4,992

20

Journal Of Petrology, 2004, Volume 45, Number 3, Pages 555-607

4,994

4,919

20

Journal Of Petrology, 2011, Volume 52, Number 2, Pages 401-430

4,968

4,920

20

Gondwana Research 11 (2007) Page 382–395

5,072

5,054

30

Journal Of Petrology, 1998, Volume 39, Number 4, Pages 711-748

5,020

4,994

30

Journal Of Petrology, 2004, Volume 45, Number 5, Pages 1069–1088

4,986

4,911

30

Journal Of Petrology, April 11, 2012, Pages 1-32

4,971

4,881

30

Journal Of Petrology, September, 2006, Page 1 Of 35

5,021

4,945

30

Journal of Petrology, 2000, Volume 41, Number 7, Pages 951-966

5,316

5,010

50

Journal of Petrology, 2010, Volume 51, Number 5, Pages 993-1026

5,008

5,004

50

Precambrian Research, 1999, Volume 95, Pages 167 - 185

5,010

4,968

55

Journal Of Petrology, 1998, Volume 39 Number 11-12, Pages 1847–1864

5,019

4,807

60

Journal Of Petrology, 1999, Volume 40, Number 6, Pages 873–908

5,174

4,987

60

Journal Of Petrology, 2007, Volume 48, Number 4, Pages 661-692

5,024

5,020

60

Ore Geology Reviews 31 (2007) Pages 337–359

5,010

4,976

60

 

 

 

 

 

 

 

 

 

 

Reference

Maximum

Minimum

Model Age

Earth And Planetary Science Letters, Volume 134 (1995) 169-185

5,016

4,953

66

Earth And Planetary Science Letters, Volume  59 (1982) Pages 327-342

5,061

5,004

70

Journal Of Petrology, 1997, Volume 38, Number 1, Pages 115-132

4,949

4,888

72

Journal of Petrology, April 2008, Pages 1-28

5,053

4,980

85

Chemical Geology, Volume 211 (2004) Pages 87–109

5,053

4,980

100

Earth and Planetary Science Letters, Volume  34 (1977) 419-431

5,057

4,838

100

Earth and Planetary Science Letters, Volume  76 (1985) Pages 57-70

5,061

4,898

100

Earth and Planetary Science Letters, Volume 244 (2006) Page 251–269

5,150

5,040

100

Earth and Planetary. Science Letters, 94 (1989) Pages 78-96

5,163

5,014

100

Geological Society Of London, Special Publications, 2004, Vol 229, Pages 133-150.

6,489

4,930

100

Isotope Geoscience, 1 (1983) Pages 23-38

5,043

4,760

100

Journal Of Petrology, 1998, Volume 39, Number 7, Pages 1285-1306

5,076

4,533

100

Precambrian Research, 1988, Volume 38, Pages 147 - 164

5,074

4,940

120

Journal Of Petrology, 2005, Volume 46, Number 4, Pages 829-858

5,065

4,996

140

Geochimica et Cosmochimica Acta, 1992, Volume 56, Pages 347-368

5,236

4,822

150

Contributions Mineral Petrology (1984) 85, Pages 376-390

5,066

4,987

155

Mereoritics And PIanetary Science, 2000, Volume 35, Pages 341 - 346

4,987

4,905

200

Geochimica et Cosmochimica Acta, Vol 62, Number 16, Pages 2823–2835, 1998

5,123

4,900

220

Uranium-Lead Zircon Ages, U.S. Geological Survey Report

4,982

4,024

250

Earth and Planetary Science Letters, Volume 183 (2000) 93-106

5,235

5,077

267

Chemical Geology, Volume 236 (2007) Pages 27–41

5,014

3,978

280

Earth and Planetary Science Letters, Volume  104 (1991) 1-15

5,145

4,947

300

Earth and Planetary Science Letters, Volume 94 (1989) Pages 239

5,016

668

316

Earth and Planetary Science Letters, Volume 94 (1989) Pages 236-244

5,016

668

320

http://pubs.usgs.gov/of/2008/1142/pdf/OF08-1142_508.pdf

4,997

4,799

416

Mineralium Deposita (1999) 34, Pages 273-283

5,046

5,029

456

Journal Of Petrology, 1999, Volume 40, Number 9, Pages 1399-1424

5,007

4,988

471

Geochimica et Cosmochimica Acta, Vol 62, Number 21/22, Pages 3527–3540, 1998

5,000

3,924

500

Geochimica et Cosmochimica Acta, Volume 61, Number 23, Pages 5005-5022, 1997

5,026

3,831

600

Chinese Journal Of Geochemistry, Volume 16, Number 1, 1997, Pages 80-85

5,237

5,065

700

 

Conclusion

Prominent evolutionist Brent Dalrymple states: “Several events in the formation of the Solar System can be dated with considerable precision.” 33

Looking at some of the dating it is obvious that precision is much lacking. He then goes on: “Biblical chronologies are historically important, but their credibility began to erode in the eighteenth and nineteenth centuries when it became apparent to some that it would be more profitable to seek a realistic age for the Earth through observation of nature than through a literal interpretation of parables.” 34

                The Bible believer who accepts the creation account literally has no problem with such unreliable dating methods. Much of the data in Dalrymple’s book is selectively taken to suit and ignores data to the contrary.

 

 

 

References

 

1              http://web.archive.org/web/20051223072700/http://pubs.usgs.gov/gip/geotime/age.html

The age of 10 to 15 billion years for the age of the Universe.

 

2              http://en.wikipedia.org/wiki/Age_of_the_universe

 

3              http://arxiv.org/pdf/1001.4744v1.pdf

Microwave Anisotropy Probe Observations, Page 39, By N. Jarosik

 

4              http://en.wikipedia.org/wiki/Age_of_the_Earth

 

5              http://sp.lyellcollection.org/content/190/1/205

The age of the Earth, G. Brent Dalrymple

Geological Society, London, Special Publications, January 1, 2001, Volume 190, Pages 205-221

 

6              The age of the earth, Gérard Manhes

Earth and Planetary Science Letters, Volume 47, Issue 3, May 1980, Pages 370–382

 

7              http://arxiv.org/pdf/astro-ph/0506458v1.pdf

The age of the Galactic disk, By E. F. del Peloso and L. da Silva

Astronomy & Astrophysics, Manuscript no. 3307, February 2, 2008

 

8              Age and mineralogy of supergene uranium

Geomorphology, 2010, Volume 117, Pages 44 - 65

C:\Essays\Geo_Dating\Age_Earth\SuperGene.pdf

 

9              Reference 8, Page 58

 

10           http://www.bgc.org/isoplot_etc/isoplot.html

 

11           207Pb–206Pb and 40Ar–39Ar ages from SW Montana

Precambrian Research, 2002, Volume 117, Pages 119 - 143

C:\Essays\Geo_Dating\Iso_Plot_Dates\Iso_Plot_008.pdf

 

12           Reference 11, Page 128

 

13           Reference 11, Page 133

 

14           Uranium-Thorium-Lead Dating

Mereoritics And Planetary Science, 2000, Volume 35, Pages 341 - 346

C:\Essays\Geo_Dating\Iso_Plot_Dates\Iso_Plot_012.pdf

 

15           Reference 14, Page 342

 

16           Reference 14, Page 343, 344

 

17           Pb–Pb dating of chondrules

Chemical Geology, 2009, Volume 259, Pages 143 - 151

C:\Essays\Geo_Dating\Iso_Plot_Dates\Iso_Plot_014.pdf

 

18           Reference 17, Page 145

 

19           Reference 17, Page 147

 

20           Pb–Pb dating constraints

Geochimica et Cosmochimica Acta, 2007, Volume 71, Pages 1583 - 1604

C:\Essays\Geo_Dating\Iso_Plot_Dates\Iso_Plot_015.pdf

 

21           Reference 20, Page 1596

 

22           U–Th–Pb dating of hydrothermal ore deposits

Chemical Geology, 2010, Volume 270, Pages 56 - 67

 

23           Reference 22, Page 65

 

24           Reference 22, Page 66

 

25           Reference 22, Page 62

 

26           U–Th–Pb dating of Yucca Mountain, Nevada

Geochimica et Cosmochimica Acta, 2008, Volume 72, Pages 2067 - 2089

C:\Essays\Geo_Dating\Age_Earth\Amelin_F.pdf

C:\Essays\Geo_Dating\Rubidium\Rubidium_Strontium_01.xlsm

 

27           Reference 26, Pages 2072, 2073

 

28           Reference 26, Pages 2080

 

29           40Ar/39Ar and U-Th-Pb Dating

Earth and Planetary Science Letters, 1983, Volume 62, Pages 132 - 146

C:\Essays\Geo_Dating\Iso_Plot_Dates\Iso_Plot_019.pdf

 

30           Reference 29, Pages 139

 

31           Isotopic Lead Investigations

Geochimica et Cosmochimica Acta, 1976, Volume 40, Pages 635 – 643

C:\Essays\Geo_Dating\Iso_Plot_Dates\Iso_Plot_020.pdf

 

32           Reference 31, Page 638

 

33           The Age Of The Earth, By G. Brent Dalrymple, 1991, Stanford University Press,

Stanford, California, Page 10.

 

34           Reference 31, Page 23

 

 

 

 

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