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Which era are we currently in?
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Earth's outermost layer, consisting of the crust and upper mantle, is called the lithosphere.
According to Bowen's reaction series, quartz is often the last mineral to crystallize from a melt.
In Bowen's reaction series, the minerals that form last are the most susceptible to chemical weathering.
No place on Earth has a complete set of conformable strata.
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