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granite domes and conifer trees in the mountains

Bald Mountain: Granite domes and conifer trees are linked in the Sierra Nevada's ecosystem.

Credit: Claire Lukens

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Sierra Nevada forest of conifers

The western Sierra Nevada has extensive forests of conifers and other trees.

Credit: Claire Lukens

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Researcher Jesse Hahm collects a tree core for forest productivity analysis.

Researcher Jesse Hahm collects a tree core for forest productivity analysis.

Credit: Claire Lukens

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mountain with patchy forest cover,

Patchiness in forest cover, scientists have discovered, is explained by bedrock geochemistry.

Credit: Claire Lukens

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Researcher  extracting a granite core

A granite core is extracted for geochemical analysis.

Credit: Claire Lukens

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researcher with a gas-powered, water-cooled drill for sampling bedrock

Samples of bedrock are obtained using a gas-powered, water-cooled drill.

Credit: Claire Lukens

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