Mineral deposits of the territory of Amapa, Brazil - alluvial gold, cassiterite, and columbite-tantalite in the Ampari River region

1967 ◽  
Author(s):  
Montis Ruhl Klepper ◽  
Victor Dequech
Keyword(s):  
Mineral Deposits ◽  
Alluvial Gold ◽  
River Region

Divergent Memories of Tumen Shan-shui

2019 ◽  
pp. 229-10.33526/EJKS.20191901.229
Author(s):  
Xiaoxuan Lu
Keyword(s):  
Lived Experience ◽  
North Korea ◽  
Research Study ◽  
States Of Mind ◽  
Geographical Research ◽  
River Region ◽  
Production Techniques ◽  
Landscape Research ◽  
Border Areas ◽  
The Creation

Focusing on the interplay between memory and place, this article examines the rationale behind the use of axonometric drawings (axons) in a geographical research study of the Tumen/Tuman River region encompassing the borders shared by China, Russia and North Korea. The concepts of “memory of place” and “place of memory” guide the structure of this project and the flow of this article. “Memory of place” emphasises the lived experience of our physical senses, and helps determine the great potential of visual methodologies in the fields of geographical and landscape research and study. Drawn up using the graphic production techniques of abstracting, foregrounding, highlighting and juxtaposing, axons avail themselves of and inform both realist and idealist states of mind. In contrast, “place of memory” references a particular type of materiality and helps us understand Tumen Shan-shui as a library of memories that reveals a profusion of contested aesthetic, cultural and political meanings. Axons serve to tell narratives revealing desires, actions and undertakings that have shaped and continue to shape the substance of the memory sites in question including infrastructure, architecture and signage. Initially adopted by the author as a medium for recording and communicating due to security restrictions imposed in the border areas in question, the creation of axons generated new insights on methods of documentation in landscape research, and the places and landscapes themselves.

ESTIMATION OF THE T-YEAR SPECIFIC DISCHARGE USING THE REGIONALISED SKEWNESS COEFFICIENT OF THE LOG-PEARSON TYPE III DISTRIBUTION

2020 ◽  
Author(s):  
Jakub Mészáros ◽  
◽  
Pavol Miklánek ◽  
Pavla Pekárová ◽  
◽  
...  
Keyword(s):  
River Basin ◽  
Type Iii ◽  
River Region ◽  
Pearson Type ◽  
Skewness Coefficient ◽  
Distribution Parameters ◽  
Design Values ◽  
Specific Discharge ◽  
Morava River ◽  
Pearson Type Iii Distribution

In this paper the results are presented of estimation of T-year specific discharge of several streams in two regions in Slovakia. The Qmax time series used in the study were observed at water gauges from lowland Slovak part of the Morava River basin, and from the mountainous Belá River basin. For estimating the design values, we have studied the use of only one type of probability distribution, namely the Log-Pearson Type III Distribution (LP3 distribution). The use of only one type of distribution brings several benefits, e.g. possibility of the regionalization of the distribution parameters (in this study skew coefficient). In the first step the design values of the specific discharge series qmax (with historical data) were estimated and regional skew coefficients Gr of the LP3 distribution were computed. Regional skewness coefficient Gr was estimated to be 0.38 in the Morava River region, and 0.73 in the Belá River region. In many cases the estimate of the 1000-year specific discharge is two times higher than the value of the 100-year specific discharge. Then we have derived the empirical relations between station skew coefficient G and the elevation of the water gauge. In the second step we have derived the empirical relationships between 1000-years specific discharge q1000 and the elevation of the water gauge for both regions separately. The derived empirical regional equations can be used to estimate the 1000-years specific discharge of other streams in the region.

THREAT ASSESSMENT OF THE DEPLETION OF TRADITIONAL FUEL-ENERGY RESOURCES

2017 ◽  
Author(s):  
Nikolay Tymchenko ◽  
◽  
Nataliia Fialko ◽  
Keyword(s):  
Threat Assessment ◽  
Energy Resources ◽  
Mineral Deposits ◽  
Fossil Energy ◽  
Global Threat

The issues of the global threat seeing depletion of the main types of traditional fossil energy resources were analyzed. The data is given on the proven world reserves of these energy resources and the timing of their depletion. The theory of M.K. Hubbert on the depletion of mineral deposits is considered. The application of the theory to assess the reserves of fossil energy resources in different countries is analyzed.

Problems of legislative regulation of land relations during the exploitation of mineral deposits

2018 ◽  
Vol 62 (6) ◽  
pp. 668-673
Author(s):  
Litvinenko M.V. ◽  
◽  
Vasyutinsky I.Yu. ◽  
Sladkopevtsev S.A. ◽  
◽  
...  
Keyword(s):  
Mineral Deposits ◽  
Legislative Regulation ◽  
Land Relations
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