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
Means to an end something leading into something else, thus it is an end in itself. Means to an end In philosophy, the term "means to an end" refers to any action (the means) carried out for the sole purpose of achieving something else (an end). It can be thought of as a metaphysical distinction as no empirical information differentiates actions that are means to ends from those that are not—that are "ends in themselves". It has been inferred that all actions are means to other ends—this is relevant when considering the meaning of life. Immanuel Kant's theory of morality, the categorical imperative, states