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Getting closer to the area where we started. This is looking to the SW across the bowl (valley)
https://geologyistheway.com/blog/2021/0 ... nia-u-s-a/ The granitic rocks of Joshua Tree have monzogranite to granodiorite composition. The age of the granites range from the Jurassic to the Cretaceous (about 200 to 65 million years ago). These granitic rocks originated from the solidification of large volumes of magma at depth during the early history of convergence between the western margin of North America and the Pacific plate (then Farallon plate).
https://geologyistheway.com/blog/2021/0 ... nia-u-s-a/ The granitic rocks of Joshua Tree have monzogranite to granodiorite composition. The age of the granites range from the Jurassic to the Cretaceous (about 200 to 65 million years ago). These granitic rocks originated from the solidification of large volumes of magma at depth during the early history of convergence between the western margin of North America and the Pacific plate (then Farallon plate).