| |
|
|
|
Mineral
Resources
Reserves of 232 mineral ores have been verified in Nagqu Prefecture,
including gold, silver, chromium, lead, zinc, salt, lithium, agate,
crystal, boron, magnesium, petroleum and jade. The reserves of a dozen
ores, including gold, lead, zinc, salt, boron and jade, are extremely
rich. Nagqu leads the rest of China in the reserves of chromite, iron
and antimony, and reserves of geothermal energy, copper, iron, boron
and magnetite are all well to the fore. There are also large reserves
of lithium. Incomplete statistics reveal that 46 types of ferrous
and non- ferrous ores, and jadeite have been found at 335 sites. There
include 11 large mineral sites, 20 medium-sized sites, and 304 small
sites. A comprehensive prospecting program has verified reserves of
12 mineral ores at some 20 different sites. Because of the inhospitable
climate, the landlocked nature of the area, and poor technical resources,
the bulk of these mineral resources have yet to be exploited.
The Dangqoi Iron Area in Nagqu is famous for its extremely rich
reserves. Chromite is widely distributed in Nagqu, and three chromite
area have been discovered in the Yilha Mountains in northern Tibet.
These include the Yilha Mountain Chromite Area, the Dongqiao Chromite
Area in Amdo, and the Qilin Lake Chromite Area also in Amdo. In
recent years, 56 rocky sites with a combined area of 1,500 square
kilometers and large reserves of chromite have also been found.
These sites are located in areas form the Banggong Co Lake to Zhabo,
and from Dongqiao to the Nujiang River. There are also rich, high
grade reserves of platinum in association with the chromite. Comprehensive
development of the platinum ore is underway in some areas. Enormous
reserves of antimony have also been found in a 700 kilometer long
area in Deqeng in the east and Banggo in Nagqu in the west. Efforts
are being made to prospect in this area, which is expected to become
China's largest antimony producting base. Copper is also widely
distributed in the area, and the copper found in Nyerong, Amdo and
Baqen is of a high grade. There are small gold mines everywhere
in Nagqu, and gold reserves have been verified in a dozen areas.
Given these facts, many believe that there are great prospects for
the development of the gold mining industry in Nagqu. A large silver
mine has also been found in Jiali County.
The numerous salt lakes in northern Tibet contain high-grade boron
resources, and efforts were made in the early 1960s to develop these
resources. Nagqu is also rich in salt. Since ancient times, the
people of Nagqu have traded salt for grain, and there are numerous
natural salt sites in the area. Five of these have proved to be
exploitable, and their annual production is expected to reach 100
million tons. Nagqu is also rich in high-grade alkalis, boron and
mirabilite used in the chemical industry. A great variety of precious
stones have also been found in Nagqu, including diamonds, rubies,
jade, turquoise, agate and cat's eye.
|
|
|
|
|
|
|