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Why do the earkiest rock samples date from 800 million years earth formed?
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Why did the earliest rock samples date from 800 Million Years After Earth formed?
earth cooled suffciently
The origins of the mineral sample were?
The origins of most mineral samples were terrestrial. This means that they were naturally formed on Earth, and were not extra-terrestrial.
Holes drilled several kilometers into earth's crust provide direct evidence about earth's interior in the form of?
Rock Samples.
Was the earth formed 50 million years ago?
The current best estimate for the age of the Earth is approximately 4.6 billion years, so it is much older than 50 million years!
What era was earth first formed Cenozoic Mesozoic Paleozoic or Precambrian PLEASE HELP?
The earth first formed at the beginning of the Precambrian supereon which spans a very large period of time from 4,567 million years ago, through to 542 million years ago.The beginning of the Precambrian where Earth formed is known as the Hadean eon, stretching from 4.7 Ga (billion years ago) and ended roughly 3.8 billion years ago.
Why did the earliest rock samples date from 800 Million Years After Earth formed?
earth cooled suffciently
Why do the earliest rock samples date from 800 million years after Earth formed?
IT took the earth this long to cool enough to form rocks
Geologist think Earth's continents began to form?
About 500 million years after Earth formed
The origins of the mineral sample were?
The origins of most mineral samples were terrestrial. This means that they were naturally formed on Earth, and were not extra-terrestrial.
What happen 800 million years after Earth formed to allowed rocks to form?
Earth cooled sufficiently
Holes drilled several kilometers into earth's crust provide direct evidence about earth's interior in the form of?
Rock Samples.
Where did precious metals come from?
ScienceDaily (Sep. 7, 2011) - Ultra high precision analyses of some of the oldest rock samples on Earth by researchers at the University of Bristol provides clear evidence that the planet's accessible reserves of precious metals are the result of a bombardment of meteorites more than 200 million years after Earth was formed.
When was the Yangtze river made?
It was formed by by the movement of earth's crust about 40 million years ago.
When was Yangtze river made?
It was formed by by the movement of earth's crust about 40 million years ago
When did ice first form on earth?
Ice first formed on Earth from the first ice age.
Was the earth formed 50 million years ago?
The current best estimate for the age of the Earth is approximately 4.6 billion years, so it is much older than 50 million years!
When did the Earth come into existence?
The Earth was formed 4.567 billion years ago from material accreted around the newly formed Sun.
