Thursday, November 13, 2014

[GSMNL] ESA Probe Lands Comet

 

http://gscim.com/Science_News/11-14/ESA_probe_lands_comet.html

The Philae the lander of the European Space Agency (ESA) probe Rosetta has landed on the surface of Comet 67P/Churyumov-Gera on November 12th, 201 becoming the first probe to land on a comet.

A look at the high resolution version of the first image shows a grainy surface that is consistent with being a loose arrogate of material held together mainly by gravity, while a portion does look melted from being melted by the sun. It seems to be a mixture of various materials making it most consistent with an exploded or shattered planet. However other possibilities can not be ruled out without an actual mineral analysis. 




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Thursday, November 6, 2014

[GSMNL] Radiometric dating - Erroneous Radiometric dates.

 

As stated before rocks are not dated by plugging them in to an ACME dating machine. Dating labs do not measure time but measure isotopes ratios. Are these ratios the result of radioactive decay over time or other processes that have taken place in the rock? 

Uinkaret Plateau
Ages of Rocks in Millions of Years

K-Ar Rb-Sr Rb-Sr Isochron Pb-Pb Isochron
0.01 1230 - 1310 1300 - 1380 2390 - 2810 
1.0 - 1.4 1260 - 1380    
2.63 1310 - 1370    
3.6 1320 - 1440    
3.67 1360 - 1420    

Some times different methods used on the same rock, produce different ages. Further more the same method can produce different ages on different parts of the same rock. Some times these are close but other times they are vary different.


Anomalous dates

 Some times radiometric dating produces impossible results.

Uranium-Thorium-Lead Method
Ages in Billions of Years

Apollo Sample # Low High Age Inconsistencies 
extremes in billions 
of Years
14310 5.3 11.2   5.9
14053 5.4 28.1 22.7
15426 4.6 16.2 11.6
66095 5.6 14.1   8.5

Some soil from the Moon has been dated as more than a billion older than the uniformitarian age for the Moon. It was explained by processes of heating and cooling soil had been through.

Some rocks dated older than the
4.5 billion year evolutionary age for Earth.

Description Method "Date" in 
billion years.
Diamonds from magma  K-Ar Isochron 6.0 +- 0.3 
Rock  Rb-Sr Isochron 8.75 
Rock  Rb-Sr 8.3
Rock  Re-Os 11


Recent or young  volcanic rocks producing excessively old K-Ar "ages":

Name Location Real Date K-Ar date
Kilauea Iki basalt Hawaii AD 1959 8.5±6.8 Ma
Mt. Etna basalt Sicily May 1964 0.7±0.01 Ma
Medicine Lake 
Highlands obsidian
Glass Mountains, 
California 
<500 years 12.6±4.5 Ma
Hualalai basalt Hawaii AD 1800-1801 22.8±16.5 Ma
East Pacific Rise basalt Pacific Ocean <1 Ma  690±7 Ma
Olivine basalt  Nathan Hills,Victoria 
Land, Antarctica
<0.3 Ma 18.0±0.7 Ma
Anorthoclase in 
volcanic bomb
Mt Erebus, 
Antarctica
1984 0.64±0.03 Ma
Kilauea basalt  Hawaii <200 years 21±8 Ma
Kilauea basalt,  Hawaii <1,000 years 42.9±4.2 Ma; 
30.3±3.3 Ma
Sea mount basalt Near East Pacific Rise <2.5 Ma 580±10 Ma; 
700±150 Ma
East Pacific Rise basalt  Pacific Ocean <0.6 Ma 24.2±1.0 Ma

  Examples of  negative ages

Name Date Ar-Ar age
Glass Mountain  AD 1579 - 1839 -130,000 
-30,000 years
Mt. Mihara AD 1961 - 70,000  years
Sakurajima AD 1946 -200,000 years

G.B. Dalrymple, "40Ar/36Ar Analyses of Historic Lava Flows," Earth and Planetary Science Letters,6 (1969): pp. 47-55.

Some rocks have been measured with negative radiometric ages, in some case in terms of millions of years. Isochron dating can also produce negative ages, by producing a negative slope. K-Ar and Ar-Ar can result in negative ages when atmospheric argon is considered. So if these are real dates then you can hold a rock in your hand that wont form for hundreds of thousands or even millions of years yet.

Now in all fairness Ar-Ar dating can get the right age for a sample of known age, but it can also date samples as way too old, but without a known date there is no way of knowing when it is too old. One key factor is the fact that Ar-Ar dating need a standard of "known" age. If standard is of historically known age, such as would likely be used for testing Ar-Ar dating on sample of known age, then one would be more likely to get the correct age. For allegedly older samples K-Ar is used to "date" the standard and as such it still has the same problems as K-Ar dating.




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Saturday, October 11, 2014

[GSMNL] Radiometric dating - The assumptions of Radiometric dating

 

http://genesismission.4t.com/Radiodating/methods.html

Some of the basic Dating Methods are as follows:

  • Samarium - Neodymium. (Sm-Nd)
  • Rhenium - Osmium (Re-Os)
  • Uranium / Thorium - Lead. ( U/Th-Pb)
  • Ribidium - Strontium (Rb-Sr)
  • Potassium - Argon (K-Ar)
  • Argon - Argon (Ar-Ar)
  • Lutetium - Hafnium (Lu-Hf)
All these methods rely on the changing ratio of  parent or daughter isotopes in a closed system. Now such a closed system does not really exists, but open system affects can't be determined easily, so it is hoped that they about balance out. These methods all have the same basic assumptions.
  1. Constant decay rate.
  2. No gain or loss of parent or daughter isotope.
  3. Known amounts of daughter isotope at start.
Realizing the difficulty of dealing with assumptions #2 and #3 above Isochron Dating was developed in an attempt to solve this problem. According to theory the sample starts out with daughter isotopes ratio with other isotopes of the same element at a constant value, but with the parent isotope is arbitrary. As a result is forms a strait horizontal line on a graph. As parent decays to daughter, the ratios change and the straight line remains but becomes angled. The slope of the line equals the number of half-lives of the parent isotope has passed sense solidification.

A shift  from contamination can take place in all of the data points, but such contamination does not affect all data points equally, so it can cause the data points to shift off the true Isochron completely. Given this when one looks at an Isochron plot how can one really tell where the true Isochron line should be. Sufficient contamination can produce any Isochron pattern regardless of the true Isochron. It is even possible to get a negative slope, this would be equivalent to a negative or future date.

When you look at actual isochron plots such as the ones at above link, there seems to be room for subjectivity. Some are better than others but there is often room for multiple plot lines. Even uniformitarian geologists recognize the existence of false isochron. So how do they distinguish good data from bad? The answer is where the sample fits in the Geologic Column.

The unique key assumption of Isochron dating is that the affect of contamination does on the Isochron can be determined. However the quality of an Isochron is still judged by where the sample fits in the Geologic Column. Also like all forms of radiometric dating it assumes that nuclear decay rates are constant, an assumption which will later be shown false.


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Tuesday, September 23, 2014

[GSMNL] Radiometric dating - The theory behind Radiometric dating.

 


The theory behind radiometric dating is actually quite simple.  Every Atom of a given element has the same number of protons, but there are varieties in the number if neutrons. These varieties are called isotopes. Some of these isotopes decay (parent isotope) into other isotopes of other elements (daughter isotope). The time is takes for half of a sample of a given isotope to decay is called its half life. The half life of a given isotope can be as small a fractions of a second to billions of years. Some as far as we know are stable and do not decay.

Measurements of the half lives show that in general they are constant though there have been some reports of small variations. It is these half lives that form the theoretical bases of
radiometric dating. The basic idea is that if you have x amount of the parent isotope and y amount of the daughter isotope that given a constant half life you can calculate how much time parent isotope would have to decay to produce the measured amount of the daughter isotope.

Next the assumptions of Radiometric dating




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Saturday, September 6, 2014

[GSMNL] Asteroid 2014 RC

 

 
For several hours on Sunday September 7, 2014 you may not want to sat the Moon is the closed celestial object to the Earth you would be wrong. This because at 2:18 p.m. on September 7 Asteroid 2014 RC will pass 25,000 miles from Earth  or about 10% of the distancebetwen the Earth and the Moon. At just 60 feet across it is a small asteroid that will not be visible to the unaided eye. At 25,000 miles there is no danger of an impact with the Earth. In Astronomy terms this is a near miss but even if an impact occured the explosion would be at about 90 kilotons of TNT or 4 times the size of the atomic bomb dropped on Nagasaki Japan.  

Based on the Nebula Hypothesis it is claimed that asteroids a remnant from formation of the solar system but it suffers from problems such things as inbalences of angular momentum.. Also real planets both in the solar system and among exoplanets that are not in orbits predicted by the Nebula Hypothesis. Alternative theories include an exploded or shattered planet between Mars and Jupiter. They could have originated from outside the solar system which from a creationist perspective could have been created on day four of the creation week with the rest of the universe. There is  also the idea that they formed from material ejected from Earth during the Genesis Flood.




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