Neither Darwin nor Lyell had the least clue about plate tectonic theory either. However, plate tectonics does little to support literal biblical creation or a young earth theory. How did the granite get to the top of the mountain range in the first place under a young earth format, granite is intrusive igneous rock, meaning it came in beneath other rocks in the crust initially. It must have taken a day or two to get up at the high elevations.
Thought you might find the following interesting—GGG
Catastrophic Granite Formation: Rapid Melting of Source Rocks, and Rapid Magma Intrusion and Cooling
Abstract
The timescale for the generation of granitic magmas and their subsequent intrusion, crystallization, and cooling as plutons is no longer incompatible with the biblical time frames of the global, year-long Flood cataclysm and of 6,000–7,000 years for earth history...
http://www.answersingenesis.org/contents/379/Catastrophic-Granite-Formation.pdf
how did granite get to the tops of mountains? During Noah’s flood when the earth broke forth and the waters of the deep opened up.