scholarly journals Chlorine isotopes of salts xenoliths from Udachnaya-East kimberlite pipe (Russia)

2019 ◽  
Keyword(s):  
Kimberlite Pipe ◽  
Chlorine Isotopes

RUTILE-DIAMOND INTERGROWTHS FROM UDACHNAYA KIMBERLITE PIPE (YAKUTIA)

2017 ◽  
Vol 39 (3) ◽  
pp. 17-31
Author(s):  
V. Kvasnytsya ◽  
◽  
O. Vyshnevskyi ◽  
Keyword(s):  
Kimberlite Pipe

Quadrupole Coupling Ratio of the Chlorine Isotopes

1952 ◽  
Vol 86 (5) ◽  
pp. 809-810 ◽  
Author(s):  
T. C. Wang ◽  
C. H. Townes ◽  
A. L. Schawlow ◽  
A. N. Holden
Keyword(s):  
Coupling Ratio ◽  
Chlorine Isotopes ◽  
Quadrupole Coupling

Primary hydrocarbon inclusions in garnet of diamondiferous eclogite from the Udachanaya kimberlite pipe, Yakutia

2009 ◽  
Vol 426 (1) ◽  
pp. 695-698 ◽  
Author(s):  
A. A. Tomilenko ◽  
S. V. Kovyazin ◽  
L. N. Pokhilenko ◽  
N. V. Sobolev
Keyword(s):  
Kimberlite Pipe

Nb-rutile from eclogite microxenolith of the Zagadochnaya kimberlite pipe

2011 ◽  
Vol 439 (1) ◽  
pp. 970-973 ◽  
Author(s):  
N. V. Sobolev ◽  
A. M. Logvinova ◽  
Yu. G. Lavrent’ev ◽  
N. S. Karmanov ◽  
L. V. Usova ◽  
...  
Keyword(s):  
Kimberlite Pipe

Age and Composition of Zircons From the Devonian Petrivske Kimberlite Pipe of the Azov Domain, the Ukrainian Shield

2021 ◽  
Vol 43 (4) ◽  
pp. 50-55
Author(s):  
L.V. SHUMLYANSKYY ◽  
V. KAMENETSKY ◽  
B.V. BORODYNYA
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Continental Crust ◽  
Kimberlite Pipe ◽  
Zircon Crystal ◽  
Precambrian Rock ◽  
Weighted Mean ◽  
Terrigenous Rocks ◽  
Devonian Age ◽  
Isotope Systematics

Results of a study of U-Pb and Hf isotope systematics and trace element concentrations in five zircon crystals separated from the Devonian Petrivske kimberlite are reported in the paper. Four zircons have yielded Paleoproterozoic and Archean ages, while one zircon grain gave a Devonian age of 383.6±4.4 Ma (weighted mean 206Pb/238U age). The Precambrian zircons have been derived from terrigenous rocks of the Mykolaivka Suite that is cut by kimberlite, or directly from the Precambrian rock complexes that constitute continental crust in the East Azov. The Devonian zircon crystal has the U-Pb age that corresponds to the age of kimberlite emplacement. It is 14 m.y. younger than zircon megacrysts found in the Novolaspa kimberlite pipe in the same area. In addition, Petrivske zircon is richer in trace elements than its counterparts from the Novolaspa pipe. Petrivske and Novolaspa zircons crystallized from two different proto-kimberlite melts, whereas the process of kimberlite formation was very complex and possibly included several episodes of formation of proto-kimberlite melts, separated by extended (over 10 M.y.) periods of time.

scholarly journals Tectonic fault monitoring at open pit mine at Zarnitsa Kimberlite Pipe

2018 ◽  
Vol 134 ◽  
pp. 012069
Author(s):  
VI Vostrikov ◽  
NS Polotnyanko ◽  
AS Trofimov ◽  
AA Potaka
Keyword(s):  
Kimberlite Pipe ◽  
Open Pit Mine ◽  
Open Pit ◽  
Tectonic Fault ◽  
Fault Monitoring

Competence and lithostratigraphy of host rocks govern kimberlite pipe morphology

2018 ◽  
Vol 55 (2) ◽  
pp. 130-137
Author(s):  
David E. Newton ◽  
Amy G. Ryan ◽  
Luke J. Hilchie
Keyword(s):  
Host Rock ◽  
Sedimentary Rock ◽  
Kimberlite Pipe ◽  
Crystalline Rock ◽  
Experimental Results ◽  
Compressed Air ◽  
Unconsolidated Sediments ◽  
Final Shape ◽  
Class 1 ◽  
Host Rocks

We use analogue experimentation to test the hypothesis that host rock competence primarily determines the morphology of kimberlite pipes. Natural occurrences of kimberlite pipes are subdivided into three classes: class 1 pipes are steep-sided diatremes emplaced into crystalline rock; class 2 pipes have a wide, shallow crater emplaced into sedimentary rock overlain by unconsolidated sediments; class 3 pipes comprise a steep-sided diatreme with a shallow-angled crater emplaced into competent crystalline rock overlain by unconsolidated sediments. We use different configurations of three analogue materials with varying cohesions to model the contrasting geological settings observed in nature. Pulses of compressed air, representing the energy of the gas-rich head of a kimberlitic magma, are used to disrupt the experimental substrate. In our experiments, the competence and configuration of the analogue materials control the excavation processes as well as the final shape of the analogue pipes: eruption through competent analogue strata results in steep-sided analogue pipes; eruption through weak analogue strata results in wide, shallow analogue pipes; eruption through intermediate strength analogue strata results in analogue pipes with a shallow crater and a steep-sided diatreme. These experimental results correspond with the shapes of natural kimberlite pipes, and demonstrate that variations in the lithology of the host rock are sufficient to generate classic kimberlite pipe shapes. These findings are consistent with models that ascribe the pipe morphologies of natural kimberlites to the competence of the host rocks in which they are emplaced.

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