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McKelvey Diagram
A McKelvey diagram or McKelvey box is a visual representation used to describe a natural resource such as a mineral or fossil fuel, based on the geologic certainty of its presence and its economic potential for recovery. The diagram is used to estimate the uncertainty and risk associated with availability of a natural resource. As geological assurance of a resource's occurrence decreases, risk increases. As economic recoverability of a resource decreases, risk also increases. Meaning of the diagram The terminology used may vary somewhat, but resources in a McKelvey diagram fall into three main areas: * Reserves, which are already discovered and commercially-viable mineral deposits, * Contingent or conditional resources, whose existence is known but which are not commercially viable at present, * Prospective or undiscovered resources that might exist but have not been found. Natural resources are classified in two dimensions, with geologic certainty shown horizontally an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Original McKelvey Diagram Published In 1973
Originality is the aspect of created or invented works that distinguish them from replica, reproductions, clones, forgery, forgeries, or substantially derivative works. The modern idea of originality is according to some scholars tied to Romanticism, by a notion that is often called romantic originality.Smith (1924)Waterhouse (1926)Macfarlane (2007) The validity of "originality" as an operational concept has been questioned. For example, there is no clear boundary between "derivative" and "inspired by" or "in the tradition of." The concept of originality is both culturally and historically contingent. For example, unattributed reiteration of a published text in one culture might be considered plagiarism but in another culture might be regarded as a convention of veneration. At the time of Shakespeare, it was more common to appreciate the similarity with an admired classical work, and Shakespeare himself avoided "unnecessary invention".Royal Shakespeare Company (2007) ''The RSC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |