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Nuk gneisses Bjorneoen Pb-Pb Rb-Sr Rb-Sr Rb-Sr 11 whole rock 11 whole rock 14 whole rock 6 whole rock 3.02 +/- 0.26 2.98 +/- 0.05 2.94 +/- 0.09 3.08 +/- 0.03 Fiskenaesset Pb-Pb U-Pb Rb-Sr 9 whole rock 5 zircon 11 whole rock 2.82 +/- 0.07 2.80 +/- 0.10 2.84 +/- 0.07 Amitsoq gneisses Godthaab U-Pb U-Pb Pb-Pb 9 zircon 8 zircon 13 whole rock 3.60 +/- 0.05 3.60 3.56 +/- 0.10 Isua Pb-Pb Rb-Sr Rb-Sr 9 whole rock 13 whole rock 12 whole rock 3.74 +/- 0.12 3.64 +/- 0.06 3.62 +/- 0.14 Labrador Kiyuktok, Saglek Pb-Pb Rb-Sr Rb-Sr 5 whole rock 15 whole rock 6 whole rock 3.50 +/- 0.11 2.75 +/- 0.12 3.06 +/- 0.16 of the Superior Province of North America Sacred Heart Granite Morton, Minnesota Pb-Pb Rb-Sr Rb-Sr 6 minerals same rock 5 minerals same rock 4 minerals same rock 2.60 +/- 0.01 2.64 2.32 +/- 0.10 Older granitoid gneisses Morton, Minnesota U-Pb U-Pb U-Pb Rb-Sr 8 zircon 19 zircon 7 zircon 26 whole rock 3.59 +/- 0.12 3.54 +/- 0.04 3.66 +/- 0.04 3.48 +/- 0.11 of the Pilbara Block of Western Australia Pilbara Supergroup Duffer Formation U-Pb Rb-Sr Rb-Sr 11 zircon Marble Bar 6 wr Marble Bar 6 wr Warrery Gap 3.45 +/- 0.02 3.23 +/- 0.28 3.51 +/- 0.06 North Star Basalt Rb-Sr Sm-Nd Sm-Nd 3 wr Marble Bar 4 wr Marble Bar 6 wr Marble Bar 3.57 +/- 0.18 3.56 +/- 0.54 3.56 +/- 0.03 Granitoids Tambourah Dome Pb-Pb Pb-Pb Rb-Sr Rb-Sr 6 whole rock 5 whole rock 4 minerals same rock 4 minerals same rock 2.94 +/- 0.03 3.07 +/- 0.01 2.70 +/- 0.01 2.61 +/- 0.01 Shaw Batholith U-Pb U-Pb Rb-Sr Rb-Sr 2 zircon 52 zircon 10 whole rock 13 whole rock 3.42 +/- 0.04 3.47 +/- 0.02 2.89 +/- 0.08 3.09 +/- 0.05
of the Barberton Mountain Land of Southern Africa
Swaziland Supergroup Komati Formation Rb-Sr Ar-Ar Ar-Ar Ar-Ar Ar-Ar Ar-Ar Pb-Pb 6 minerals same rock 1 whole rock 1 whole rock 1 whole rock 1 whole rock 1 whole rock 12 whole rock 3.43 +/- 0.20 3.49 +/- 0.01 3.41 +/- 0.03 3.42 +/- 0.01 3.30 +/- 0.02 3.45 +/- 0.01 3.46 +/- 0.07
Komati and Theespruit formations Sm-Nd 10 whole rock 3.53 +/- 0.05 Age of Moon Rocks The manned lunar missions had significant scientific worth for they gave scientists an exciting opportunity to study rock samples collected from another planet. Both the theoretical and experimental evidence is quite good that the moon, the earth, along with the entire solar system formed more or less simultaneously. Therefore, the age of the moon has a direct bearing on the age of the earth. There are many rocks from the moon that are in fact older than the very oldest rocks found on earth. Nine missions, six from the United States and three from Russia, returned a total of nearly 382 kg of samples. This priceless material consists of crystalline rocks, breccias and soil, the latter in the form of both scooped samples and cores, from a variety of geological environments (Dalrymple, page 212). The following is a table of some radiometric ages calculated with different methods from the lunar rocks and material of the Apollo missions. Learn about the types of minerals here -- including Zircon (ZrSiO4, Zirconium Silicate), Ilmenite (FeTiO3, Iron Titanium Oxide), Pyroxene, Plagioclase (a form of Feldspar, NaAlSi3O8 abundant on the Moon), and many others. Radiometric Ages of Lunar Rocks [ From G. Brent Dalrymple (page 230-1, 239), some omitted for brevity ] Mission/Sample Method Material Dated Age (billions of years) R. Sungenis: Moon rocks don’t add anything to the discussion, since the same unproven presuppositions are used to date moon rocks as earth rocks. |
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