21. The Basin area is underlain by the quartz monzonite of the Boulder Batholith . 22. The granite that forms Mount Whitney is part of the Sierra Nevada batholith . 23. Dacites and andesites were erupted above an evolving batholith in the first interval. 24. In addition there are many older terranes between the batholith and basalt flows. 25. The Tharwa Adamellite is part of the Murrumbidgee Batholith . 26. The Murrumbidgee Batholith was formed, with several intrusions. 27. It rises towards the east, part of the enormous Sierra Nevada Batholith . 28. The batholith has caused metamorphism on its western edge. 29. The northern parts are of the batholith are themselves intruded by Jurassic gabbros. 30. The age of the Chilliwack batholith ranges from 26 to 29 million years old.
