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 vndiſcouered Countrey, from whoſe Borne<br> No Traueller returnes, Puzels the will,<br> And makes vs rather beare those illes we haue,<br> Then flye to others that we know not of.<br> Thus Conſcience does make Cowards of vs all,<br> And thus the Natiue hew of Resolution<br> Is ſicklied o’re, with the pale caſt of Thought,<br> And enterprizes of great pith and moment,<br> With this regard their Currants turne away,<br> And looſe the name of Action. Soft you now,<br> The faire "Ophelia?" Nimph, in thy Orizons<br> Be all my ſinnes remembred. "To be, or not to be" is one of the most widely