Magnetic survey at the "Crystal" site in 2019

2020 ◽  
Author(s):  
Alexandr N. Shein ◽  
◽  
Polina N. Novikova ◽  
Svetlana Yu. Artamonova ◽  
Vladimir V. Potapov ◽  
...  
Keyword(s):  
Nuclear Explosion ◽  
Geophysical Methods ◽  
Underground Nuclear Explosion ◽  
Magnetic Survey ◽  
Geological Environment

The paper discusses the results of magnetic survey over the site of the "Crystal" underground nuclear explosion, which indicated that large metal objects are buried under the sarcophagus. These results will help in interpreting data of other geophysical methods used here to study the effect of the underground nuclear explosion on the geological environment.

scholarly journals THE ELECTROTOMOGRAPHY SURVEY IN DIFFICULT GEOTECHNOGENIC CONDITIONS AT THE PEACEFUL UNDERGROUND NUCLEAR EXPLOSION "CRYSTAL" SITE

2021 ◽  
Vol 2 (3) ◽  
pp. 61-68
Author(s):  
Alexandr N. Shein ◽  
Svetlana Yu. Artamonova ◽  
Vladimir V. Potapov ◽  
Nickolay O. Kozhevnikov ◽  
Vladislav E. Ushnitskii
Keyword(s):  
Electrical Resistivity ◽  
Carbonate Rocks ◽  
Nuclear Explosion ◽  
Forward Modeling ◽  
Measured Data ◽  
Underground Nuclear Explosion ◽  
Geological Environment ◽  
Two Dimensional ◽  
Data Inversion ◽  
Significant Interference

The paper presents the results of measurements in 2019 by electrotomography at the site of the emplacement hole of the peaceful underground nuclear explosion "Crystal", carried in 1974 at a depth of 98 m in permafrost Cambrian carbonate rocks, and the neighboring forest area. The fence made of metal poles and barbed wire around the site, and the buried fragments of the casing of the emplacement hole create significant interference of measurements. To avoid the electromagnetic noise, the measured data of the apparent electrical resistivity was cleaned manually. Data inversion was performed in the Res2Dinv program. Geoelectric models, namely two-dimensional sections of the upper part of the geological environment to a depth of up to 80 m, were obtained. To verify the models, forward modeling was performed using the ZondRes2D program.

Pulse induction soundings in the area of the “Crystal” underground nuclear explosion

2020 ◽  
Author(s):  
Vladimir V. Potapov ◽  
◽  
Evgeniy Yu. Antonov ◽  
Alexandr N. Shein ◽  
Svetlana Yu. Artamonova ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Measurement Technique ◽  
Nuclear Explosion ◽  
Field Studies ◽  
Underground Nuclear Explosion ◽  
Geological Environment ◽  
Transient Electromagnetic ◽  
High Information Content ◽  
Tem Method ◽  
High Information

The paper presents the results of geophysical studies using the method of transient electromagnetic field (TEM) in the area of the «Crystal» underground nuclear explosion in 2008 and 2019. The measurement technique and signal differences in different years related to the noise situation at the site of work are described in detail. Geoelectric sections constructed from the results of field studies show the high information content of the TEM method in the study of Yakutia and can be used to study the effect of the «Crystal» underground nuclear explosion on the geological environment.

Geologic effects of the Rainier underground nuclear explosion : a summary progress report of U.S. Geological Survey investigations

1959 ◽  
Author(s):  
William H. Diment ◽  
V.R. Wilmarth ◽  
R.E. Wilcox ◽  
Alfred Clebsch ◽  
G.E. Manger ◽  
...  
Keyword(s):  
Nuclear Explosion ◽  
Progress Report ◽  
Geological Survey ◽  
Underground Nuclear Explosion

A LOOK INTO THE EARTH: EVALUATING THE USE OF MAGNETIC SURVEY IN AFRICAN ARCHAEOLOGY

2004 ◽  
Vol 2 (1) ◽  
pp. 49-63 ◽  
Author(s):  
Carlos Magnavita ◽  
Norbert Schleifer
Keyword(s):  
Geophysical Methods ◽  
Field Research ◽  
Archaeological Sites ◽  
Magnetic Survey ◽  
The Past ◽  
Common Technique ◽  
Sub Saharan ◽  
Prehistoric Settlements ◽  
Present Case Study

In the last decades, geophysical methods such as magnetic survey have become a common technique for prospecting archaeological sites. At sub-Saharan archaeological sites, however, magnetic survey and correlated techniques never came into broad use and there are no signs for an immediate change of this situation. This paper examines the magnetic survey undertaken on the Nigerian site of Zilum, a settlement of the Gajiganna Culture (ca 1800-400 BC) located in the Chad Basin and dated to ca 600-400 BC. By means of the present case study, we demonstrate the significance of this particular type of investigation in yielding complementary data for understanding the character of prehistoric settlements. In conclusion, we point out that geophysical methods should play a more important role in modern archaeological field research, as they furnish a class of documentation not achievable by traditional survey and excavation methods, thus creating new perspectives for interpreting the past of African societies.

Radioecological studies at the Kraton-3 underground nuclear explosion site in 1978–2007: a review

2009 ◽  
Vol 100 (12) ◽  
pp. 1092-1099 ◽  
Author(s):  
V. Ramzaev ◽  
A. Mishin ◽  
V. Golikov ◽  
T. Argunova ◽  
V. Ushnitski ◽  
...  
Keyword(s):  
Nuclear Explosion ◽  
Underground Nuclear Explosion
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