Posted on 05/13/2017 6:19:54 PM PDT by BenLurkin
4.4 billion years ago, the Earth was in what is called the Hadean Eon. This time period is poorly understood, because there is no rock record dating from that time. This is where the zircon mineral grains come in.
...
In a sense, these zircon grains are the missing pages.
Zircons chemical name is zirconium silicate, and its found almost everywhere in the Earths crust. This study focuses on whats called detrital zircon, which is formed in igneous rocks, but then survives over time until deposited in sedimentary rocks. Zircon grains are typically very small, about 0.1 to 0.3 mm in size.
Zircon commonly contains traces of thorium and uranium, which means they can be easily dated by modern dating methods. Zircon can survive a lot of geologic processes like metamorphism, which explains their usefulness in studying the early Earth. Theyre not easily destroyed, and they have a story to tell us.
The zircon grains were crystallized in magma about 500 million years after the Earth formed. As a result, they offer rare insights into conditions on Earth at the time. The zircon grains in question are referred to as detritus, because they formed in magma but were deposited in the geologically-important sandstone at Jack Hills, Australia. The detritus grains were compared to a second type of zircon grain which were formed directly in the sedimentary formations.
By distinguishing between the two types, researchers gain a new geochemical tool to understand early Earth.
(Excerpt) Read more at universetoday.com ...
(and other self-worshipping man-god zars (sun-princes) https://www.google.com/#q=Sar+akkadian+word+for+Sun-Prince)
...arrogantly have the scribes depict them as:
Note: this topic is from . Thanks BenLurkin.
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Note: this topic is from . Thanks BenLurkin.
“I think that might be in a book I read somewhere.”
That seems to be happening a lot lately.
Yeah sounds familiar to me too!
Dang, what IS that from?
what about all the boats...
“Jeanny Tripplehorn was hot”
even if she had to play second fiddle in Basic Instinct
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