The orebody at Bata Hijau is porphyry copper and includes a high gold component, which is common for a copper deposit in southeast Asia.
22.
Most copper is mined or extracted as copper sulfides from large open pit mines in porphyry copper deposits that contain 0.4 to 1.0 % copper.
23.
He contributed to the discovery of a large porphyry copper-gold deposit that was renamed in his honor, at the advanced Oyu Tolgoi project in Mongolia.
24.
In 1978, J David Lowell proposed an exploration program along the porphyry copper belt between Chuquicamata in the north and El Salvador in the south.
25.
A major economic activity in the region the large porphyry copper Mining | mine known as the Toquepala mine, located the Tacna Province, Tacna Department, Peru.
26.
"' Porphyry copper deposits "'are copper orebodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the deposit itself.
27.
The mine composes two porphyry copper deposits ( the San Juan and Dos Pobres copper ore bodies ) that have leachable oxide and secondary sulfide mineralization.
28.
The Safford mine, in a large porphyry copper deposit, will be the largest new copper mine put on production in Arizona in more than 30 years.
29.
Dr . Douglas put him in charge of redeveloping the property, in what became probably the first attempt to mine a porphyry copper deposit by mass methods.
30.
Bingham Canyon is a porphyry copper deposit where magma containing copper, molybdenum, gold and other minerals slowly moved its way to the surface and cooled into rock.
