Hi Tootsie! Good to see you.
I think one will look at the book soon.
a person by the name of Matt Neibaur posted this today on UBRON. I was just wondering sinse you're a geologist if you might know WHEN (waht year) the age of these rocks were determined?
TUB stated there location and age by 1946 when there printing plates were locked in the printer's vault until it was published in 1955.
The article is from today. Thanks in advance Thomas. Peace Brother
Researchers find oldest rocks on Earth
Canadian bedrock more than four billion years old may be the oldest known section of the Earth's early crust. Scientists at the Carnegie Institution used geochemical methods to obtain an age of 4.28 billion years for samples of the rock, making it 250 million years more ancient than any previously discovered rocks. The findings, which offer scientists clues to the earliest stages of our planet's evolution, are published in the September 26 issue of Science.
From: matt neibaur
Subject: Oldest rocks on Earth
Date: Thu, Sep 25, 2008, 7:45 PM
This is an interesting article on the ancient rocks found at the Hudson Bay. Compare to the UB below. This article states that 2001 was the date it was first recognized. Perhaps someone with a historical or geological background could give some insight.
Researchers find oldest rocks on Earth
The Nuvvuagittuq greenstone belt is an expanse of bedrock exposed on the eastern shore of Hudson Bay
in northern Quebec and was first recognized in 2001 as a potential site of very old rocks. Samples of the Nuvvuagittuq rocks were collected by geologists from McGill University in Montreal and analyzed by Jonathan O'Neil, a PhD student at McGill, and Richard Carlson at the Carnegie Institution's Department of Terrestrial Magnetism.
By measuring minute variations in the isotopic composition of the rare earth elements neodymium and samarium in the rocks, O'Neil and Carlson determined that the rock samples range from 3.8 to 4.28 billion years old. The oldest dates came from rocks termed "faux amphibolite," which the researchers interpret to be ancient volcanic deposits.
"There have been older dates from Western Australia for isolated resistant mineral grains called zircons," says Carlson, "but these are the oldest whole rocks found so far."
The oldest zircon dates are 4.36 billion years. Before this study, the oldest dated rocks were from a body of rock known as the Acasta Gneiss in the Northwest Territories, which are 4.03 billion years old.
The Earth is 4.6 billion years old, and remnants of its early crust are extremely rare—most of it has been mashed and recycled into Earth's interior several times over by plate tectonics since the Earth formed.
The rocks are significant not only for their great age but also for their chemical composition, which resembles that of volcanic rocks in geologic settings where tectonic plates are crashing together.
"This gives us an unprecedented glimpse of the processes that formed the early crust," says Carlson.
Oldest Rocks on Earth (Phys.org)
From the UB:
P.661 - §4 Shortly after Urantia was first recognized on the universe broadcasts to all Nebadon, it was accorded full universe status. Soon thereafter it was registered in the records of the minor and the major sector headquarters planets of the superuniverse; and before this age was over, Urantia had found entry on the planetary-life registry of Uversa.
P.661 - §5 This entire age was characterized by frequent and violent storms. The early crust of the earth was in a state of continual flux. Surface cooling alternated with immense lava flows. Nowhere can there be found on the surface of the world anything of this original planetary crust. It has all been mixed up too many times with extruding lavas of deep origins and admixed with subsequent deposits of the early world-wide ocean.
P.661 - §6 Nowhere on the surface of the world will there be found more of the modified remnants of these ancient preocean rocks than in northeastern Canada around Hudson Bay.
This extensive granite elevation is composed of stone belonging to the preoceanic ages. These rock layers have been heated, bent, twisted, upcrumpled, and again and again have they passed through these distorting metamorphic experiences.