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An ore deposit is an accumulation of ore. This is distinct from a mineral resource as defined by the mineral resource classification criteria.

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Porphyry copper deposit - Wikipedia

Porphyry copper deposits are copper orebodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the

The World Factbook — Central Intelligence Agency

The Office of Public Affairs (OPA) is the single point of contact for all inquiries about the Central Intelligence Agency (CIA). We read every letter, fax, or e-mail

The World Factbook — Central Intelligence Agency

Features map and brief descriptions of the geography, people, government, economy, communications, transportation, military and transnational issues.

Chapter 63 - Metal: Chemical Properties and Toxicity

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A Navy sailor named Janaye Ervin faces possible prosecution following her refusal to salute the flag during a recent ceremony at Pearl Harbor. Ervin, ranked as Petty

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NATURA : AMORE: ARTE: ANIMALI: CITTÀ: NATALIZI: RICORRENZE: PAESAGGI: FIORI: VARIE: Dipinto di Salvador Domènec Felip Jacint Dalí, Olio su

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