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. Transactions of the Royal Society of Edinburgh: Earth Sciences 5–255.
Though partial melting in the lower crust is the main rate-limiting step, it is now conjectured to only take years to decades, so partial melting to produce a large reservoir of granitic magmas could have occurred in the pre-Flood era as a consequence of accelerated nuclear decay early in the Creation Week.
Evidence suggests that many may only be several kilometers (or less) thick. The entire landscape in this panoramic view is composed of granites.
Keywords: granites, magma, partial melting, melt segregation, magma ascent, dikes, magma emplacement, emplacement rates, crystallization and cooling rates, convective cooling, hydrothermal fluids, polonium radiohalos The major, almost exclusive, rock type in some areas on the earth’s surface, such as in the Yosemite National Park, is granite.
Huge masses of many adjoining granite bodies outcrop on a grand scale throughout that area (fig.
The growth of large crystals from magmas within hours has now been experimentally determined, while the co-formation in the same biotite flakes of adjacent uranium and polonium radiohalos, the latter from short-lived parent polonium isotopes, requires that crystallization and cooling of the granitic plutons only took about 6–10 days.
Thus the sum total of time, from partial melting in the lower crust to crystallization and cooling of granitic plutons emplaced in the upper crust, no longer conflicts with the biblical time frame for earth history, nor is it an impediment to accounting for most of the fossil-bearing geologic record during the global year-long Flood catastrophe.
The batholith stretches in a belt approximately 600 km (373 miles) long northwest–southeast and more than 165 km (102 miles) wide.
1), as they also do along the length of the Sierra Nevada and the Peninsular Ranges of central and southern California respectively. The Sierra Nevada batholith is the collective name given to all the granite bodies that outcrop in, and form much of, the magnificent Sierra Nevada range. El Cajon, California: Institute for Creation Research; St.