Distribution of radioactive isotopes in rock and ore of Arkhangelskaya pipe from the Arkhangelsk diamond province


Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

The contents of radioactive elements and the uranium isotopic composition of kimberlite in the Arkhangelskaya pipe at the M.V. Lomonosov deposit and of nearby country rocks have been studied. A surplus of 234U isotope has been established in rocks from the near-pipe space. The high γ = 234U/238U ratio is controlled by the geological structure of the near-pipe space. A nonequilibrium uranium halo reaches two pipe diameters in size and can be regarded as a local ore guide for kimberlite discovery. The rocks in the nearpipe space are also characterized by elevated or anomalous U, Th, and K contents with respect to the background.

Авторлар туралы

S. Druzhinin

Institute of Geodynamics and Geology, Laverov Federal Research Center for Comprehensive Study of the Arctic Region

Email: yakovlev_eu@inbox.ru
Ресей, Arkhangelsk, 163000

A. Galkin

OAO Severalmaz

Email: yakovlev_eu@inbox.ru
Ресей, Arkhangelsk, 163000

G. Kiselev

Institute of Geodynamics and Geology, Laverov Federal Research Center for Comprehensive Study of the Arctic Region

Email: yakovlev_eu@inbox.ru
Ресей, Arkhangelsk, 163000

E. Yakovlev

Institute of Geodynamics and Geology, Laverov Federal Research Center for Comprehensive Study of the Arctic Region

Хат алмасуға жауапты Автор.
Email: yakovlev_eu@inbox.ru
Ресей, Arkhangelsk, 163000

Қосымша файлдар

Қосымша файлдар
Әрекет
1. JATS XML

© Pleiades Publishing, Ltd., 2017