Provenance (geology) Provenance (geology) Provenance in geology, is the reconstruction of the origin of sediments. The Earth is a dynamic planet, and all rocks are subject to transition between the three main rock types: sedimentary, metamorphic, and igneous rocks (the rock cycle). Rocks exposed to the surface are sooner or later broken down into sediments. Sediments are expected to be able to provide evidence of the erosion history of their parent source rocks. The purpose of provenance study is to restore the tectonic, paleo-geographic and paleo-climatic history. In the modern geological lexicon, "sediment provenance" specifically refers to the application of compositional analyses
Star Wars expanded to other media Star Wars expanded to other media "Star Wars" expanded to other media includes all "Star Wars" fictional material produced by Lucasfilm or officially licensed by it outside of the original "Star Wars" films and television series. Intended as an enhancement to and extension of the theatrical films produced by George Lucas, the spin-off material was moderated by Lucasfilm, and Lucas reserved the right to both draw from and contradict it in his own works. This includes an array of derivative "Star Wars" works produced in conjunction with, between, and after the original trilogy (1977–1983), prequel trilogy (1999–2005), and sequel trilogy