Dunes in Arizona

class [petrology] . In the CIPW classification of igneous rocks, a subdivision based on the relative proportions of salic and femic standard minerals. The classes correspond approximately to the... more

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Harriet Evelyn Wallace Scholarship information

The Harriet Evelyn Wallace Scholarship is now taking applications. Women pursuing Master's or Doctoral degrees in Geoscience programs are eligible to apply by January 4th, 2017.

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Research in the field

The latest edition of AGI's comprehensive report on the state of the geoscience workforce and related economics.

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Geoscience for Americas Critical Needs

Invitation to a national policy dialogue on major geoscience policy topics.


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