General geology and petrology of the Precambrian crystalline rocks, Park and Jefferson Counties, Colorado metamorphic rocks in the Tarryall region were intruded by Precambrian igneous rocks in three distinct episodes 1.7,1.46, and 1.04 bibblion years ago. Late phases of the final intrusion, the Pikes Peak Granite, were accompanied by beryllium-bearing greisens

Bibliographische Detailangaben

Hauptverfasser:	Hawley, Charles Cadwell (VerfasserIn), Wobus, Reinhard A. (VerfasserIn)
Format:	Buch
Sprache:	English
Veröffentlicht:	Washington, DC U.S. Government Print. Office 1977
Schriftenreihe:	Geological Survey professional paper 608-B
Schlagworte:	Präkambrium Gesteinskunde Kristallines Gestein Staat Colorado Front Range
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!