NATIVE METALS IN VOLCANIC ASHES
by Gennady KARPOV, Dr. Sc. (Geol. & Mineral.), Deputy Director of the RAS SB Institute of Volcanology and Seismology (Petropavlovsk-Kamchatsky) Vulcanism is often an unexpected, catastrophic and in many respects unexplored natural phenomenon driven by powerful physico-chemical and dynamic processes in terrestrial depths. Volcanic eruptions bring an in-depth gaseous, liquid, and solid element to the surface. It is important to study it to accumulate knowledge about the inner spheres of the planet and extend practical applications-for ore geology, volcanology, and many related disciplines such as seismology, climatology, and ecology. Despite of significant volumes of lava products that change the relief and build up the earth crust, it is well known that minute particles brought out into the atmosphere-ashes and aerosols (by estimate, about 100 mln tons of volcanic ashes get to the atmosphere) have major impact on the atmosphere, while powerful catastrophic eruptions can even change the climate of the Earth in general. Spread by the wind for hundreds of kilometers, ashes pose a great threat to air traffic. They also stimulate accumulation of loose material in soils and water bodies. In this context, it is very important to study material and mineral composition of ashes, which is a subject of the present article. стр. 19 Regular eruptions are accompanied by ejection of 5,000 t of crushed and finely crushed volcanic material per one second. Major and catastrophic eruptions bring out even more. For example, in the culmination point of eruption of Bezymianny volcano in the Kamchatka Peninsula on March 30, 1956, about 150 mln t of ashes were ejected. According to the data obtained by Nikolai Zharinov, Cand. Sc. (Tech.), and Yuri Demyanchuk, employees of the RAS SB Institute of Volcanology and Seismology, for the period from 1955 to 2009, only this very volcano ejected about 918.5 mln t of ashes. During the intense explosion of Karym-sky volcano on ... Читать далее
____________________

Эта публикация была размещена на Либмонстре в другой стране и показалась интересной редакторам.

Полная версия: https://biblio.kz/m/articles/view/NATIVE-METALS-IN-VOLCANIC-ASHES
Professional Authors' Comments:
Order by: 
Per page: 
 
  • There are no comments yet
Guest comments




Who Like this
Likes · Dislikes
 
Empty
Actions
Rate
0 votes
Publisher
Таджикистан Онлайн
Душанбе, Tajikistan
20.11.2021 (13 days ago)
Link
Permanent link to this publication:

http://library.tj/blogs/entry/NATIVE-METALS-IN-VOLCANIC-ASHES


© library.tj
 

Libmonster, International Network:

Actual publications:

Libmonster Partners

Actual publications:

Latest ARTICLES:

Latest BOOKS:

Actual publications:

LIBRARY.TJ is a Tajik open digital library, repository of author's heritage and archive

Register & start to create your original collection of articles, books, research, biographies, photographs, files. It's convenient and free. Click here to register as an author. Share with the world your works!
NATIVE METALS IN VOLCANIC ASHES
 

Contacts
Watch out for new publications: News only: Chat for Authors:

About · News · For Advertisers · Donate to Libmonster

Digital Library of Tajikistan ® All rights reserved.
2018-2021, LIBRARY.TJ is a part of Libmonster, international library network (open map)


LIBMONSTER NETWORK ONE WORLD - ONE LIBRARY

US-Great Britain Sweden Serbia
Russia Belarus Ukraine Kazakhstan Moldova Tajikistan Estonia Russia-2 Belarus-2

Create and store your author's collection at Libmonster: articles, books, studies. Libmonster will spread your heritage all over the world (through a network of branches, partner libraries, search engines, social networks). You will be able to share a link to your profile with colleagues, students, readers and other interested parties, in order to acquaint them with your copyright heritage. After registration at your disposal - more than 100 tools for creating your own author's collection. It is free: it was, it is and always will be.

Download app for smartphones