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
What Happened to Burger's Daughter or How South African Censorship Works What Happened to Burger's Daughter or How South African Censorship Works What Happened to Burger's Daughter or How South African Censorship Works is a 1980 collection of essays by South African novelist Nadine Gordimer and others. The book is about the South African government's banning and subsequent unbanning of Gordimer's 1979 novel "Burger's Daughter". The book was published in Johannesburg by Taurus Publications, a small underground publishing house established in the late-1970s to print anti-apartheid literature and other material South African publishers would avoid for fear of censorship. Its publications were generally distributed privately or sent to bookshops to be