993 resultados para Mineral resources


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The decision in Palala Resources (Pty) Ltd v Minister of Mineral Resources and Energy & others 2014 (6) SA 403 (GP) (‘Palala Resources’) brings clarity about the lapsing of a company’s prospecting right in terms of s 56(c) of the Mineral and Petroleum Resources Development Act 28 of 2002 (‘the MPRDA’) upon deregistration of the company, and highlights some of the features of a statutory prospecting right. Section 56(c) determines that a company’s prospecting right will lapse upon deregistration of the company if no prior application has been made, in terms of s 11(1) of the MPRDA, to the Director-General of the Department of Mineral Resources for consent to alienate or transfer the right (item 1 of the Ministerial delegation of 12 May 2004). The principles underlying the decision could also be applied to mining rights granted in terms of the MPRDA. By way of introduction, these rights are briefly sketched before the decision will be set out and discussed. It will be argued that the case shows that despite the public law nature of the MPRDA, there is the need for a proper private-law analysis of these statutory rights.

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"Prepared by the United States Geological Survey in collaboration with the Washington State Department of Conservation, Division of Mines and Geology, and the United States Bureau of Reclamation, and other agencies, at the request of Senator Henry M. Jackson, chairman of the Committee on Interior and Insular Affairs, United States Senate."

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Includes bibliography.

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Includes bibliographical references (p. 40-41)

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At head of title: 89th Congress, 1st session, Committee print.

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At head of title: 88th Cong., 2d sess. Committee print.

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The Lake Elsinore quadrangle covers about 250 square miles and includes parts of the southwest margin of the Perris Block, the Elsinore trough, the southeastern end of the Santa Ana Mountains, and the Elsinore Mountains.

The oldest rocks consist of an assemblage of metamorphics of igneous effusive and sedimentary origin, probably, for the most part, of Triassic age. They are intruded by diorite and various hypabyssal rocks, then in turn by granitic rocks, which occupy over 40 percent of the area. Following this last igneous activity of probable Lower Cretaceous age, an extended period of sedimentation started with the deposition of the marine Upper Cretaceous Chico formation and continued during the Paloecene under alternating marine and continental conditions on the margins of the blocks. A marine regression towards the north, during the Neocene, accounts for the younger Tertiary strata in the region under consideration.

Outpouring of basalts to the southeast indicates that igneous activity was resumed toward the close of the Tertiary. The fault zone, which characterizes the Elsinor trough, marks one of the major tectonic lines of southem California. It separates the upthrown and tilted block of the Santa Ana Mountains to the south from the Perris Block to the north.

Most of the faults are normal in type and nearly parallel to the general trend of the trough, or intersect each other at an acute angle. Vertical displacements generally exceed the horizontal ones and several periods of activity are recognized.

Tilting of Tertiary and older Quaternary sediments in the trough have produced broad synclinal structures which have been modified by subsequent faulting.

Five old surfaces of erosion are exposed on the highlands.

The mineral resources of the region are mainly high-grade clay deposits and mineral waters.

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The purposes of this document are to:
• outline some processes in relation to the administration and/or handling of earth resources activities (particularly exploration and mining for minerals) on Crown land;
• provide Crown land managers with guidelines and procedures to assist in administration of exploration and mining cases;
• provide a broad framework within which regional or localised guidelines and procedures can be developed or utilised;
• provide guidance to proponents wishing to undertake exploration or mining for minerals on Crown land.

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The Paraná Basin is a Western Gondwanan cratonic basin that is better defined as the Paraná depositional site, since it has a diverse history as a basin. Sedimentation started in the Ordovician-Silurian, followed by extensive marine Devonian deposition. A Late Paleozoic/ Triassic facies cycle wedge was clearly built during Pangean time. The Early Cretaceous was characterized by extensive basaltic lava flows immediately before the break-up of Pangea. Following these rifting and drifting processes, the basin's structural framework was totally rebuilt, generating new depositional sites in the Late Cretaceous to Tertiary. Based on more recent data, at least two different basins may be defined during the evolution of what was once considered a unique basin. Nevertheless, even if considered as a single basin, the sedimentary pile of the Paraná Basin has considerable economic potential, until now exploited only rudimentarily, except for its groundwater resources. Aggregates, limestones, clays, industrial sands, gems, dimension stones, hydrocarbons, coal, peat, and uranium are some of the potential mineral resources of this basin. Copyright © 1997 by V. H. Winston & Son, Inc. All rights reserved.

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Geochemical mapping is a valuable tool for the control of territory that can be used not only in the identification of mineral resources and geological, agricultural and forestry studies but also in the monitoring of natural resources by giving solutions to environmental and economic problems. Stream sediments are widely used in the sampling campaigns carried out by the world's governments and research groups for their characteristics of broad representativeness of rocks and soils, for ease of sampling and for the possibility to conduct very detailed sampling In this context, the environmental role of stream sediments provides a good basis for the implementation of environmental management measures, in fact the composition of river sediments is an important factor in understanding the complex dynamics that develop within catchment basins therefore they represent a critical environmental compartment: they can persistently incorporate pollutants after a process of contamination and release into the biosphere if the environmental conditions change. It is essential to determine whether the concentrations of certain elements, in particular heavy metals, can be the result of natural erosion of rocks containing high concentrations of specific elements or are generated as residues of human activities related to a certain study area. This PhD thesis aims to extract from an extensive database on stream sediments of the Romagna rivers the widest spectrum of informations. The study involved low and high order stream in the mountain and hilly area, but also the sediments of the floodplain area, where intensive agriculture is active. The geochemical signals recorded by the stream sediments will be interpreted in order to reconstruct the natural variability related to bedrock and soil contribution, the effects of the river dynamics, the anomalous sites, and with the calculation of background values be able to evaluate their level of degradation and predict the environmental risk.