Skip Navigation

This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (46)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by PRICE, S. E.
Right arrow Articles by KOPYLOVA, M. G.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Journal of Petrology Volume 41 Number 6 Pages 789-808 2000
© Oxford University Press 2000

Primitive Magma From the Jericho Pipe, N.W.T., Canada: Constraints on Primary Kimberlite Melt Chemistry

S. E. PRICE, J. K. RUSSELL,* and M. G. KOPYLOVA

IGNEOUS PETROLOGY LABORATORY, DEPARTMENT OF EARTH AND OCEAN SCIENCES, UNIVERSITY OF BRITISH COLUMBIA, VANCOUVER, B.C., CANADA, V6T 1Z4

We report the first estimates of primary kimberlite melt composition from the Slave craton, based on samples of aphanitic kimberlite from the Jericho kimberlite pipe, N.W.T., Canada. Three samples derive from the margins of dykes where kimberlite chilled against wall rock (JD51, JD69 and JD82) and are shown to be texturally consistent with crystallization from a melt. Samples JD69 and JD82 have geochemical characteristics of primitive melts: they have high MgO (20–25 wt %), high mg-numbers (86–88), and high Cr (1300–1900 ppm) and Ni (800–1400 ppm) contents. They also have high contents of CO2 (10–17 wt %). Relative to bulk macrocrystal kimberlite, they have lower mg-numbers and lower MgO but are enriched in incompatible elements (e.g. Zr, Nb and Y), because the bulk kimberlite compositions are strongly controlled by accumulation of mantle olivine and other macrocrysts. The compositions of aphanitic kimberlite from Jericho are similar to melts produced experimentally by partial melting of a carbonate-bearing garnet lherzolite. On the basis of these experimental data, we show that the primary magmas from the Jericho kimberlite could represent 0·7–0·9% melting of a carbonated lherzolitic mantle source at pressures and temperatures found in the uppermost asthenosphere to the Slave craton. The measured CO2 contents for samples JD69 and JD82 are only slightly lower than the CO2 contents of the corresponding experimental melts; this suggests that the earliest hypabyssal phase of the Jericho kimberlite retained most of its original volatile content. As such these samples provide a minimum CO2 content for the primary kimberlite magmas from the Slave craton.

KEY WORDS: kimberlite; melt; primitive; primary magma; Slave craton


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Can MineralHome page
T. C. Birkett
FIRST-ROW TRANSITION ELEMENTS, Y AND Ga IN KIMBERLITE AND LAMPROITE: APPLICATIONS TO DIAMOND PROSPECTIVITY AND PETROGENESIS
Can Mineral, October 1, 2008; 46(5): 1269 - 1282.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
P. L. Roeder and D. J. Schulze
Crystallization of Groundmass Spinel in Kimberlite
J. Petrology, August 1, 2008; 49(8): 1473 - 1495.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
V. S. Kamenetsky, M. B. Kamenetsky, A. V. Sobolev, A. V. Golovin, S. Demouchy, K. Faure, V. V. Sharygin, and D. V. Kuzmin
Olivine in the Udachnaya-East Kimberlite (Yakutia, Russia): Types, Compositions and Origins
J. Petrology, April 1, 2008; 49(4): 823 - 839.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
Y. Fedortchouk, D. Canil, and E. Semenets
Mechanisms of diamond oxidation and their bearing on the fluid composition in kimberlite magmas
American Mineralogist, July 1, 2007; 92(7): 1200 - 1212.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
A. Bellis and D. Canil
Ferric Iron in CaTiO3 Perovskite as an Oxygen Barometer for Kimberlitic Magmas I: Experimental Calibration
J. Petrology, February 1, 2007; 48(2): 219 - 230.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
D. Canil and A. J. Bellis
Ferric Iron in CaTiO3 Perovskite as an Oxygen Barometer for Kimberlite Magmas II: Applications
J. Petrology, February 1, 2007; 48(2): 231 - 252.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
S. TAPPE, S. F. FOLEY, G. A. JENNER, L. M. HEAMAN, B. A. KJARSGAARD, R. L. ROMER, A. STRACKE, N. JOYCE, and J. HOEFS
Genesis of Ultramafic Lamprophyres and Carbonatites at Aillik Bay, Labrador: a Consequence of Incipient Lithospheric Thinning beneath the North Atlantic Craton
J. Petrology, July 1, 2006; 47(7): 1261 - 1315.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
M. BECKER and A. P. L. ROEX
Geochemistry of South African On- and Off-craton, Group I and Group II Kimberlites: Petrogenesis and Source Region Evolution
J. Petrology, April 1, 2006; 47(4): 673 - 703.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
L. M. HEAMAN, R. A. CREASER, H. O. COOKENBOO, and T. CHACKO
Multi-Stage Modification of the Northern Slave Mantle Lithosphere: Evidence from Zircon- and Diamond-Bearing Eclogite Xenoliths Entrained in Jericho Kimberlite, Canada
J. Petrology, April 1, 2006; 47(4): 821 - 858.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
G. H. GUDFINNSSON and D. C. PRESNALL
Continuous Gradations among Primary Carbonatitic, Kimberlitic, Melilititic, Basaltic, Picritic, and Komatiitic Melts in Equilibrium with Garnet Lherzolite at 3-8 GPa
J. Petrology, August 1, 2005; 46(8): 1645 - 1659.
[Abstract] [Full Text] [PDF]

Home page
 GeologyHome page
R. Maas, M. B. Kamenetsky, A. V. Sobolev, V. S. Kamenetsky, and N. V. Sobolev
Sr, Nd, and Pb isotope evidence for a mantle origin of alkali chlorides and carbonates in the Udachnaya kimberlite, Siberia
Geology, July 1, 2005; 33(7): 549 - 552.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
Y. FEDORTCHOUK and D. CANIL
Intensive Variables in Kimberlite Magmas, Lac de Gras, Canada and Implications for Diamond Survival
J. Petrology, September 1, 2004; 45(9): 1725 - 1745.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
A. P. LE ROEX, D. R. BELL, and P. DAVIS
Petrogenesis of Group I Kimberlites from Kimberley, South Africa: Evidence from Bulk-rock Geochemistry
J. Petrology, December 1, 2003; 44(12): 2261 - 2286.
[Abstract] [Full Text] [PDF]

Home page
 GeologyHome page
L. M. Heaman, R. A. Creaser, and H. O. Cookenboo
Extreme enrichment of high field strength elements in Jericho eclogite xenoliths: A cryptic record of Paleoproterozoic subduction, partial melting, and metasomatism beneath the Slave craton, Canada
Geology, June 1, 2002; 30(6): 507 - 510.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.