Political and commercial geology and the world's mineral resources
Science
Political and commercial geology and the world's mineral resources
Geology, Economic; Mines and mineral resources
=Portugal.=--The largest deposits of iron ore in Portugal are those of
Moncorvo, in the northeastern part. The ore is a bedded sedimentary
deposit of low grade and the estimated reserve is 45 million tons.
Small deposits of magnetite and brown hematite are found in the
southern part in the Province of Alemtejo. Portugal produced 48,342
tons of iron ore in 1913.
=Turkey and Bulgaria.=--Minor deposits of magnetite and hematite occur
in Bulgaria and former European Turkey, and in western Asia Minor
several important ore bodies are known.[47] The largest of these
deposits occurs in the Berut Hills, 90 miles northwest of the Gulf of
Alexandretta. It is reported to be capable of producing 300,000 tons
annually.
[47] EDWARDS, G. M.: “Notes on Mines in the Ottoman Empire,” _Trans._
Inst. Min. Met., vol. 23, 1913-14.
Other important deposits are found near Ayazmat, on the mainland
opposite the island of Mitylene, and near Tireboli and Trebizond, on
the Black Sea. The only producing mine is near Ayazmat.
=Chile.=--Scattered iron-ore deposits occur in Chile in the coastal
mountain region; the principal deposits extend a distance of about 150
miles parallel to the coast, some of them being north and some south
of Coquimbo. The ore bodies are within 10 to 40 miles of the coast.
Most of them are enclosed as lenses in granitic rocks; a few are in
sedimentary rocks near the contact of igneous rocks.
Furnaces and a steel plant were erected by a French syndicate 10 to 15
years ago in southern Chile. The plant ran only a few months, there
being apparently no market for the product. The iron ore was obtained
from the Tofo deposit, and green wood was used for fuel.
Of the Chilean deposits, the largest, Algarrobo, is owned by a
joint Dutch-German syndicate controlled by Wm. H. Müller & Co., and
Gutehoffnungshütte. Tofo, next in size to Algarrobo, is under lease
to the Bethlehem Steel Co. Most of the other deposits are owned
by Chileans. The tonnage of Chilean ore controlled by different
nationalities is approximately as follows:
Millions of tons
(long tons)
German 50
American 40
Chilean (in part English) 50
---
Total 140
Iron ore was mined at Tofo during 1914, 1915, and 1916, and exported to
the United States. In 1915 about 153,000 tons were shipped. During the
war the mining practically ceased.
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