porphyry copper वाक्य
उदाहरण वाक्य
मोबाइल
- The stock generated the porphyry copper deposits, gold-bearing veins, and gold placers.
- The deposit is complex but has the general characteristics of a porphyry copper.
- Porphyry copper deposits are currently the largest source of copper ore.
- The world's major copper deposits are formed within the granitic porphyry copper style.
- The open-pit mining of porphyry copper deposits was adopted worldwide.
- Quartz monzonite porphyry is often associated with copper mineralization in the porphyry copper ore deposits.
- The host rock for porphyry copper deposits in southeast Asia is typically diorite and quartz-diorite.
- Batu Hijau is a large porphyry copper / gold deposit, which Newmont discovered in 1990.
- Polymetallic replacements / mantos are often stratiform wall-rock replacement orebodies distal to porphyry copper deposits.
- It is estimated that the Earth s porphyry copper deposits contain approximately 1.7?0 11 tonnes of copper.
- Technological innovation in drilling, blasting, loading and transport made it profitable to mine large low-grade porphyry copper deposits.
- The deposit is a large porphyry copper-gold-molybdenum deposit, and if developed would be a major producer of those metals.
- For a more balanced but still dated account see A . B . Parsons, " The Porphyry Coppers ".
- In 1907 he started up the Ray copper mine in Arizona, one of the first large scale porphyry copper operations.
- Its activities include the extraction, exploitation and production copper from the porphyry copper deposit located southeast of the city of Arequipa.
- Copper is produced from two large open-pit porphyry copper operations in Grant County : the Chino Mine and the Tyrone mine.
- Porphyry copper deposits represent an important resource and the dominant source of copper that is mined today to satisfy global demand.
- "' Kerr "'- Recognized as a porphyry copper deposit since 1987 ( specifically a modified porphyry deposit with unique characteristics ).
- Covellite and other copper sulfides found in the area appear to have formed through postvolcanic epithermal mineralization above deep porphyry copper mineralization.
- Porphyry copper ore deposits are formed by concentration of copper within a granite stock during the ascent and crystallisation of a magma.
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