NDLI: The structure of the Lomonosov volcanic pipe in the Arkhangel’sk diamond province from anomalies of the microseismic field

Content Provider	Springer Nature Link
Author	Frantsuzova, V. I. Danilov, K. B.
Copyright Year	2016
Abstract	This paper presents results from a study of the Lomonosov volcanic pipe as derived from anomalies of the microseismic field. Microseismic sounding revealed that this volcanic pipe is a cone-shaped body with a small gradient of microseismic intensity motion (2 to 5 dB). Discontinuities generally show greater contrasts compared with the variations of microseismic motion in the pipe body. Comparison of the results of this microseismic sounding with other geological and geophysical data showed that the intensities of the microseismic field along lines that traversed the pipe reflect realistic structures of a kimberlite pipe and the host rocks. The method of microseismic sounding was used to reconstruct the deeper structure of the volcanic pipe and the host rocks down to depths greater than 2 km. We estimated the velocity contrast and the errors involved in the identification of vertical boundaries of the pipe. The volcanic pipe has a shape that is consistent with a nearly vertical source situated at a depth of a few hundred meters. This is hypothesized to be a typical occurrence for other diamond-bearing pipes as well.
Starting Page	339
Ending Page	346
Page Count	8
File Format	PDF
ISSN	07420463
Journal	Journal of Volcanology and Seismology
Volume Number	10
Issue Number	5
e-ISSN	18197108
Language	English
Publisher	Pleiades Publishing
Publisher Date	2016-11-05
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Geophysics/Geodesy Geochemistry Geology
Content Type	Text
Resource Type	Article
Subject	Geology Geochemistry and Petrology Geophysics

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