Ciudad Guayana: A Planned Metropolis on the Orinoco

1963 ◽  
Vol 5 (3) ◽  
pp. 405-412 ◽  
Author(s):  
David E. Snyder

Great cities have historically demonstrated an affinity for riverine locations. Current activity in Venezuela points to the creation of a major urban node on the south bank of the Orinoco River, at its confluence with the Caroni (Figure 1). Since World War Two, but especially in the last decade, an important series of events within this area of Venezuela has pointed up the opportunity, if not the necessity, of bringing this long dormant region into the nation's developed, effectivelysettled domain. The mining and shipping of iron ore from El Pao by Bethlehem Steel's subsidiary, Iron Mines Company, initiated before the war but not operational until 1950, was the first major stimulus. The region was further awakened with the arrival of United States Steel's Orinoco Mining Company which opened up the Cerro Bolívar iron ore deposit. The first shipment here was in 1954. In both these projects, the developers had to bring in everything necessary for the beginning of operations.

2019 ◽  
Vol 1 (2) ◽  
pp. 37-41
Author(s):  
Su Kangjie ◽  
Yuan Ya

2019 ◽  
Author(s):  
Bolorchimeg Nanzad ◽  
◽  
Marek Locmelis ◽  
Brandon James Sullivan ◽  
Ryan Mathur

1998 ◽  
Vol 34 (3) ◽  
pp. 209-216 ◽  
Author(s):  
L. A. Nazarova ◽  
L. A. Nazarov ◽  
A. V. Leont'ev

Author(s):  
B. Elevli ◽  
A. Demirci ◽  
A. Dogan ◽  
G. Onal

2020 ◽  
Vol 177 ◽  
pp. 02006
Author(s):  
Andrey Vedernikov ◽  
Pavel Zuev ◽  
Danila Grigoriev

Often in deposits developed by underground mining, the task is to control the state of the earth's surface within the mine field. And this problem is even more acute in the case of combined open-underground mining. The Goroblagodatskoe iron ore deposit has been developed by a combined method for more than 40 years. The article describes the methodology and results of applying the geophysical diagnostic method at a mining facility developed by a combined open-underground method - the spectral seismic profiling method (SSP). The application of this method is justified. This method has shown its sufficient efficiency in terms of time costs and sufficient reliability for local studies. The results of field and desk studies are obtained, an assessment of the nature of the object is given, which justifies the use of further measures for the safe development of the object.


2013 ◽  
Vol 15 ◽  
pp. 63-68
Author(s):  
Sujan Devkota ◽  
Lalu Prasad Paudel

The Bhainskati Formation of the Tansen Group in the Palpa area is known for hematite iron ore deposit for long time. A prominent band of hematite of about 1-2 m thickness and extending >5 km was identified in the upper part of the Bhainskati Formation in the present study. The band is repeated three times in the area by folding and faulting. Petrographic study shows that it is oolitic ironstone of sedimentary origin. Main minerals in the band are hematite, goethite, quartz, calcite, siderite and albite. Hematite content varies considerably among samples and occurs mainly as oolite and cement. The Bhainskati ironstone with its ferrous mineral assemblage and well-rounded texture of the ooids suggests shallow marine environment (prodeltaic to estuarine) with reduced clastic input. DOI: http://dx.doi.org/10.3126/bdg.v15i0.7418 Bulletin of the Department of Geology, Vol. 15, 2012, pp. 63-68


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