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
To Be or Not to Be (book) skulls". The story can reach any of 110 endings, each illustrated in colour by one of a wide variety of artists, including fellow webcomic artists Kate Beaton, Christopher Hastings, Jeph Jacques and Randall Munroe, among many others. The book features references to other works, including other plays of Shakespeare's (in one ending, Hamlet returns to the University of Wittenberg, befriends classmate T. J. Macbeth who nicknames Hamlet "Banquo", and returns with him to Scotland) and more recent pop culture. Occasionally the player can switch control between characters, such as taking over as Hamlet after his father has succeeded in convincing