GEO 1115 : Geo lab 4.docx
Document Summary
The metamorphic rocks of the grenville province are exposed at qantley quarry and show a lot of evidence from the wisconsinan glaciation. The wiiconsinan glaciation left a lot of hints at. Cantley quarry that tell us the geological history of the area. To understand the geological history of the area and understand the effects of continental glaciation and deglaciation. Answers: the bedrock observed is marble which is a metamorphic rock made of calcite. This bedrock was formed during the grenville orogeny during the forming of rodinia when tectonic plates were colliding. Limestone was likely the protolith that was buried in the. The protolith under great pressure and temperature formed marble. As the mountains formed on top of the protolith eroded away, uplift took place and the protolith came to the surface forming the marble bedrock we see today. The marble was formed 1 ga and the striations seen on the marble are about 15 000 years.
