The uplift history of the Sierra Nevada mountain range and the subsidence history of the adjacent San Joaquin Basin of California are integrated with numerical modeling results on the physical processes attendant in the ongoing removal of mantle lithosphere from beneath the region. The geological data are leveraged against the modeling results as a means of better constraining the physical processes simulated in a number of model runs. A class of models is resolved that can satisfy both the uplift and subsidence histories, as well as a broad array of other geological constraints. These results are further developed into an integrated geological-geodynamic model of mantle lithosphere removal and its surface manifestations as it progressed over time in three dimensions.
Batholith tectonics: Formation and deformation of ghost stratigraphy during assembly of the mid-crustal Andalshatten batholith, central Norway
Heather S. Anderson (Aaron S. Yoshinbu, corresponding author) et al., Department of Geosciences, Texas Tech University, Lubbock, Texas 79409-1053, USA. Published online 17 Apr. 2013; http://dx.doi.org/10.1130/GES00824.1.
This work utilizes superb 3-D exposures of crystallized igneous rock to evaluate how magmas migrate through Earth's crust and how they ultimately solidify beneath arc volcanoes. The research uses high-precision geochronological dating methods to establish the timing of magmatism as well as structural analysis to explain the mechanisms by which different batches of magma were collected within a subterranean reservoir. The research highlights the complexity
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Geological Society of America