Browse Items (1 total)

  • Unit is exactly "Rooster Hill Formation"

Megacrystic potassium feldspar gneiss
This lithology is characterized by 1-4 inch long megacrysts of microperthite in a groundmass of quartz, oligoclase, hornblende, orthopyroxene, garnet, and oxide. Although the contacts of this unit are everywhere conformable, the rock is believed to…
Output Formats

atom, dc-rdf, dcmes-xml, json, omeka-xml, rss2