scholarly journals Notes on the volcanic rocks of the republic of Salvador, Central America

1886 ◽  
Vol s3-32 (187) ◽  
pp. 26-31
Author(s):  
A. Hague ◽  
J. P. Iddings
Keyword(s):  
Central America ◽  
Volcanic Rocks ◽  
The Republic

Resolution 530 (1983

1984 ◽  
Vol 23 (4) ◽  
pp. 838-840
Keyword(s):  
United Nations ◽  
Central America ◽  
Use Of Force ◽  
Foreign Minister ◽  
Self Determination ◽  
Northern Border ◽  
The United Nations ◽  
The Republic ◽  
The One

The Security Council,Having heard the statement of the Foreign Minister of the Republic of Nicaragua,Having also heard the statements of various States Members of the United Nations in the course of the debate,Deeply concerned, on the one hand, at the situation prevailing on and insid the northern border of Nicaragua and, on the other hand, at the consequent dange of a military confrontation between Honduras and Nicaragua, which could further aggravate the existing crisis.situation in Central America,Recalling all the relevant principles of the Charter of the United Nations,, particularly the obligation of States to settle their disputes exclusively by peaceful means, not to resort to the threat or use of force and to respect the self-determination of peoples and the sovereign independence of all States,Noting the widespread desire expressed by the States concerned to achieve solutions to the differences between them,

scholarly journals COVID-19 pandemic in Panama: lessons of the unique risks and research opportunities for Latin America

2020 ◽  
Vol 44 ◽  
pp. 1
Author(s):  
Jose R. Loaiza ◽  
Kosagisharaf Rao ◽  
Gilberto A. Eskildsen ◽  
Eduardo Ortega-Barria ◽  
Matthew J. Miller ◽  
...  
Keyword(s):  
Central America ◽  
Research Community ◽  
Middle Income Country ◽  
Local Health ◽  
Middle Income ◽  
Research Opportunities ◽  
Health Authorities ◽  
Global Study ◽  
The Republic ◽  
Local Health Authorities

The Republic of Panama has the second most unequally distributed wealth in Central America, has recently entered the list of countries affected by the COVID-19 pandemic, and has one of the largest testing rate per inhabitant in the region and consequently the highest incidence rate of COVID-19, making it an ideal location to discuss potential scenarios for assessing epidemic preparedness, and to outline research opportunities in the Region of the Americas. We address two timely important questions: What are the unique risks of COVID-19 in Panama that could help other countries in the Region be better prepared? And what kind of scientific knowledge can Panama contribute to the regional and global study of COVID-19? This paper provides suggestions about how the research community could support local health authorities plan for different scenarios and decrease public anxiety. It also presents basic scientific opportunities about emerging pandemic pathogens towards promoting global health from the perspective of a middle income country.

scholarly journals Hydrochemical and Isotopic Assessment of Groundwater in the Goda Mountains Range System. Republic of Djibouti (Horn of Africa)

Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 2004 ◽  
Author(s):  
Ibrahim Ahmed ◽  
Mohamed Jalludin ◽  
Moumtaz Razack
Keyword(s):  
Stable Isotopes ◽  
Major Ions ◽  
Volcanic Rocks ◽  
Principal Component ◽  
Initial Step ◽  
Radiogenic Isotopes ◽  
Horn Of Africa ◽  
Significant Progress ◽  
The Republic ◽  
Hydrogeological System

The hydrogeological system of the Goda Mountains Range (GMR) in the Republic of Djibouti (Horn of Africa), hosted by volcanic and sedimentary formations, is the only water resource in the Tadjourah region for more than 85,000 inhabitants. Water needs are expected to drastically increase in the coming years, due to fast socio-economic development of the region. Accordingly, this system is under high pressure and should sustainably be exploited. However, little is known about the hydrogeology of this system. This study aims to improve the understanding of the hydrochemistry and the recharge processes of this system. The study is based on the combined interpretation of major ions, stable isotopes (18O, 2H), and radiogenic isotopes (3H, 14C). The interpretation of major ions contents using classical hydrochemical methods and principal component analysis highlighted that alteration of volcanic rocks minerals, coastal rainfall infiltration, and evaporation are the main processes from which groundwater acquires mineralization. Stable isotopes revealed that groundwater is of meteoric origin and has undergone high evaporation during infiltration. Radiogenic isotopes showed that groundwater in the basalts is mostly submodern to old, in relation with low hydraulic conductivity of the rocks and/or longer pathways through fissures from outcrop to subsurface. Groundwater in the rhyolites is much younger compared to the basalts due to faster infiltration. The sedimentary part, in connection with the rhyolites, has younger waters compared to the basalts, but older compared to the rhyolites. The overall results show that GMR is a fairly complex hydrogeological system, containing a resource made up of a mixture of waters of different ages. This study has made significant progress in understanding this system and is an initial step towards the sustainable exploitation of resources.

Syngenetic magnetic anomaly sources: Three examples

Geophysics ◽  
1991 ◽  
Vol 56 (7) ◽  
pp. 902-913 ◽  
Author(s):  
S. Parker Gay ◽  
Bronson W. Hawley
Keyword(s):  
Central America ◽  
Upper Cretaceous ◽  
Volcanic Rocks ◽  
Rocky Mountain ◽  
Magnetic Anomalies ◽  
Magnetic Minerals ◽  
Subsurface Geology ◽  
South Central ◽  
Different Types ◽  
Source Materials

Aeromagnetic anomalies encountered in three areas, two in the western United States and one in Central America, are shown to arise from magnetic sedimentary formations. These examples are selected from a larger number of similar areas surveyed by Applied Geophysics, Inc. in various places in the U.S. Midcontinent and Rocky Mountain regions. The first area discussed is the northwest corner of Nebraska where the Miocene Arikaree formation, comprised of magnetic airfall and windblown tuffs, causes anomalies in areas of incised topography. The second area is located in south central Utah, where the Upper Cretaceous Kaiparowits sandstones contain detrital magnetite that causes large anomalies in tilted structures and over incised topography. The third area treated covers over half of southern Belize in Central America, including much of the offshore portion. Here, the Toledo formation of Paleocene‐Eocene age contains a thick section of clastic detritus rich in lithic grains of volcanic rocks that produce magnetic highs over thrusted and folded anticlinal axes. These three examples of magnetic anomalies due to syngenetic magnetite in widely scattered areas and from different types of source materials bring into question the assumption of so‐called “diagenetic magnetite” (or other magnetic minerals) as a cause of magnetic anomalies in other petroleum basins. It is necessary in all cases to determine the magnetic source from surface or subsurface geology, as was done here, rather than making assumptions strictly from magnetic profiles or mathematical models.

scholarly journals Geological-geomorphological characteristics and petrographical composition of the St. Anastasia Island

2021 ◽  
Vol 8 (1) ◽  
pp. 118-125
Author(s):  
Dimitar Dimitrov ◽  
Banush Banushev
Keyword(s):  
Upper Cretaceous ◽  
Volcanic Rocks ◽  
Alkali Feldspar ◽  
Geological Processes ◽  
The Republic ◽  
Historical Heritage

Abstract St. Anastasia Island is one of the symbols of the cultural and historical heritage of the Republic of Bulgaria. This raises the need for the study of risky oceanographic factors, climatic phenomena, risky geological processes as well as detailed petrographical characteristics of the Upper Cretaceous volcanic rocks forming the islands. The results of the petrographical study show that the island was built by Alkali feldspar trachytes. The volcanics from St. Anastasia Island shows a close petrochemical similarity to the volcanics from Alatepenski paleovolcano belonging to the “Peripheral Volcanic Centers” in the region.

The Use of Lightweight Concrete Effectiveness in Volcanic Resistant Construction

2019 ◽  
Vol 828 ◽  
pp. 24-30
Author(s):  
Maria Badalyan ◽  
Grigor Arakelyan ◽  
Amalya Karapetyan
Keyword(s):  
Portland Cement ◽  
Lightweight Concrete ◽  
Excess Free Energy ◽  
Volcanic Rocks ◽  
Stable State ◽  
Amorphous Structure ◽  
Partial Replacement ◽  
Fine Grained ◽  
Mineral Additive ◽  
The Republic

The article is devoted to the topical problem - to increase seismic resistance of erected buildings in the Republic of Armenia. Armenia is rich in volcanic rocks of glassy structure, which possess sufficient excess free energy of particles of matter and this energy can be regarded as a work stock that they can accomplish, i.e. can be regarded as kinetic energy. One of the most active rocks in the republic is the lithoid pumice of the Jrauber-Lusavan deposit, a spongy material of an acidic composition, the amorphous phase of which reaches up to 98%. We studied this rock for obtaining lightweight structural concrete using energy-saving technology. The amorphous structure of pumice gives the possibility of expensive Portland cement to be replaced in part by a cheaper bonded binder - a fine-grained mixture of quicklime and aluminosilicate rock. Due to the non-stable state of volcanic pumice, which possesses chemical activity, i.e. property to interact with lime, the composition of lightweight concrete, which can be used for the manufacture of blocks, reinforced concrete structures. In studies to regulate and give concrete the necessary properties, a plasticizing additive of the firm Sika Visco Crete 510P and a mineral additive - microsilica were used. Lightweight concrete cement was obtained, where the compressive strength increased to 43.17 MPa in 28-day increments, and 4.1 MPa in the case of bending: and with partial replacement of Portland cement with lime, the strength naturally decreased, because lime is slowly gaining strength, but for a long time, and the strength to break has increased to 4.6 MPa, which is explained by the structure of the neoplasms.

The Central American Court of Justice

1932 ◽  
Vol 26 (4) ◽  
pp. 759-786 ◽  
Author(s):  
Manley O. Hudson
Keyword(s):  
United States ◽  
Central America ◽  
The United States ◽  
Central American ◽  
Court Of Justice ◽  
American States ◽  
International Court ◽  
The Republic ◽  
Made In ◽  
Unanimous Agreement

Federation in Central America. The organization of an international court in Central America was greatly facilitated by the fact that since their independence began the five Central American states have had a tradition of solidarity. This tradition has persisted in spite of frequent dissensions, and it has been expressed in numerous attempts at federation. Under the Spanish régime, the Vice-royalty of Guatemala included in its five provinces the territory of what is now the five states. It was this dependency which declared its independence in 1821. Two years later the Republic of the United States of Central America was formed, and it continued for some years. Later attempts at union were made in 1835, 1842, 1847, 1852, 1889, and 1895, all of them more or less abortive, as was the latest attempt in 1921. Unanimous agreement of the five states was always difficult to achieve; distances were great and communications difficult; and no pressing need made union imperative. Yet the attempts at federation were renewed from time to time, over a period of a century. They had the effect of encouraging cooperation in many fields, and led to the efforts in 1902, 1907 and 1921 to create a judicial agency for the handling of disputes between the five states.

scholarly journals ON THE DISTRIBUTION OF GRIMMIA (GRIMMIACEAE) IN THE REPUBLIC OF BASHKORTOSTAN

ÈKOBIOTEH ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 156-166
Author(s):  
L. A. Valitova ◽  
◽  
E. Z. Baisheva ◽  
Keyword(s):  
Volcanic Rocks ◽  
Southern Urals ◽  
Habitat Conditions ◽  
The Southern Urals ◽  
Moss Species ◽  
Annotated List ◽  
Vegetation Zones ◽  
Republic Of Bashkortostan ◽  
Data Book ◽  
The Republic

In the Republic of Bashkortostan, 13 epilithic moss species belonging to the genus Grimmia Hedw. have been found. An annotated list of species with information about the number of findings in different vegetation zones and a brief description of habitat conditions, as well as distribution map of species are provided. In study area, Grimmia species are more common in areas with volcanic rocks outcrops, i. e. the central part and the eastern slope of the Southern Urals, as well as in the Bashkir Trans-Urals. Habitat conditions of G. laevigata, G. longirostris and G. muehlenbeckii differ significantly by temperature and humidity. The species G. plagiopodia G. teretinervis, G. alpestris, G. anomala and G. tergestina are rare in Bashkortostan and recommended to be included in the appendix to the Red Data Book of the republic.

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