О МЕХАНИЗМЕ ФОРМИРОВАНИЯ КИМБЕРЛИТОВЫХ ДИАТРЕМ АРХАНГЕЛЬСКОЙ АЛМАЗОНОСНОЙ ПРОВИНЦИИ
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dc.contributor.author | Ерёменко А.В. | |
dc.date.accessioned | 2021-12-11T08:08:57Z | |
dc.date.available | 2021-12-11T08:08:57Z | |
dc.date.issued | 2003 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=18240087 | |
dc.identifier.citation | Вестник Воронежского государственного университета. Серия: Геология, 2003, , 1, 158-163 | |
dc.identifier.issn | 1609-0691 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/33196 | |
dc.description.abstract | The work deals with the mechanism of diatreme formation that is greatly controlled by formation of “magmatic corks” when magma rises to the surface. It explains: 1) manifestation of explosive effects that influence the peculiarities of rocks composing diatremes; 2) difference in peculiarities of rocks of different phases of intrusion in the same diatremes; 3) difference in the composition of different pipes and the occurence of xenoliths of country rocks not only at the edges of the diatremes but in their central parts as well; 4) existence of “blind pipes”. The assumption on the origin of pipes of different types of the same field from a singe vertical non-homogeneous magmatic hot-bed has been put forward. Difference in the rock composition and the degree of productivity of diatremes inside each field depends on the character of vertical non-homogeneity of the hot-bed that is related with lateral variability of sediments attracted into the subduction zone. | |
dc.title | О МЕХАНИЗМЕ ФОРМИРОВАНИЯ КИМБЕРЛИТОВЫХ ДИАТРЕМ АРХАНГЕЛЬСКОЙ АЛМАЗОНОСНОЙ ПРОВИНЦИИ | |
dc.type | Статья | |
dc.subject.udc | 552.323.6:551.215.6(470.11) |
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