 | | Journal (article/letter/editorial) | | Primitive Magma From the Jericho Pipe, N.W.T., Canada: Constraints on Primary Kimberlite Melt Chemistry S. E...UNIVERSITY OF BRITISH COLUMBIA, VANCOUVER, B.C., CANADA, V6T 1Z4 RECEIVED APRIL 23, 1999; REVISED TYPESCRIPT...primary kimberlite melt composition from the Slave craton, based on samples of aphanitic kimberlite from...from the Jericho kimberlite pipe, N.W.T., Canada. Three samples derive from the margins of dykes where kimberlite...CO2 (10–17 wt %). Relative to bulk macrocrystal kimberlite, they have lower mg-numbers and lower MgO but |  | Kamenetsky, Vadim S., Kamenetsky, Maya B., Weiss, Yakov, Navon, Oded, Nielsen, Troels F.D., Mernagh, Terrence P. (2009) How unique is the Udachnaya-East kimberlite? Comparison with kimberlites from the Slave Craton (Canada) and SW Greenland. Lithos, 112. 334-346 doi:10.1016/j.lithos.2009.03.032 | Journal (article/letter/editorial) | | Udachnaya-East kimberlite? Comparison with kimberlites from the Slave Craton (Canada) and SW Greenland...2009 Available online 31 March 2009 Keywords: Kimberlite Olivine Melt inclusions Alkali carbonates Chlorine...Contrary to existing dogma that the Udachnaya-East kimberlite was either contaminated by the crustal sediments...idea of alkali- and chlorine enrichment of the kimberlite parental melt by studying olivine-hosted melt...in kimberlites from the Slave Craton, Canada (Gahcho Kué, Jericho, Aaron and Leslie pipes) and southern |  | Masun, K.M., Doyle, B.J., Ball, S., Walker, S. (2004) The geology and mineralogy of the Anuri kimberlite, Nunavut, Canada. Lithos, 76 (1) 75-97 doi:10.1016/j.lithos.2004.03.022 | Journal (article/letter/editorial) | | Anuri kimberlite, Nunavut, Canada K.M. Masun *, B.J. Doyle, S. Ball, S. Walker Kennecott Canada Exploration...Suite 354, 200 Granville Street, Vancouver, BC, Canada V6C 1S4 Received 25 June 2003; accepted 6 January...online 18 May 2004 Abstract The 613 F 6 Ma Anuri kimberlite is a pipelike body comprising two lobes with...– 5 ha. The pipe is infilled with two contrasting rock types: volcaniclastic kimberlite (VK) and, less...less common, hypabyssal kimberlite (HK). The HK is an archetypal kimberlite composed of macrocrysts of |  | | Journal (article/letter/editorial) | | the western Slave craton and Wopmay orogen from apatite (U–Th)/He thermochronometry Alexis K. Ault a,⁎...online 15 May 2009 Editor: R.W. Carlson Keywords: apatite (U–Th)/He thermochronometry Slave craton Wopmay...ca. 610 to 45 Ma kimberlites indicate that the region underwent a more dynamic history of burial and...unroofing than widely recognized. We report new apatite (U–Th)/He thermochronometry data along a southeast...± 39 Ma. Individual apatite dates are broadly uniform over a wide span of apatite [eU], and this pattern |  | | Journal (issue) | | FEATURE ARTICLE______________ 208 Diamonds in Canada B. A. Kjarsgaard and A. A. Levinson This article...Massachusetts A. A. Levinson Calgary, Alberta, Canada Christopher P. Smith Lucerne, Switzerland Editor...still a newcomer as a supplier of rough diamonds, Canada is now among the world’s most important diamond... GEMS & GEMOLOGY FALL 2002 207 DIAMONDS IN CANADA By B. A. Kjarsgaard and A. A. Levinson A newcomer...supplier of rough diamonds to the world market, Canada is currently the seventh most important diamond |  | | Book | | © 2011 Royal Ontario Museum, Toronto, Ontario, Canada. All rights reserved. No part of this publication...Cataloging-in-Publication Data (U.S.) Library and Archives Canada Cataloguing in Publication Tait, Kimberly. Tait...States by Firefly Books (U.S.) Inc. Published in Canada by Firefly Books Ltd. PO. Box 1338, Ellicott Station...at the Royal Ontario Museum, Toronto, Ontario, Canada. Photography: Brian Boyle, MPA, FPPO, and Miguel...publishing program by the Government of Canada through the Canada Book Fund as administered by the Department |  | Flowers, Rebecca M., Ault, Alexis K., Kelley, Shari A., Zhang, Nan, Zhong, Shijie (2012) Epeirogeny or eustasy? Paleozoic–Mesozoic vertical motion of the North American continental interior from thermochronometry and implications for mantle dynamics. Earth and Planetary Science Letters, 317. 436-445 doi:10.1016/j.epsl.2011.11.015 | Journal (article/letter/editorial) | | Phanerozoic sedimentary record. New and published apatite (U–Th)/He and fission-track data from three study...geologic observations, indicates that an extensive region of the continent was inundated and buried by sedimentary...km) elevation change in a continental interior region without significant crustal deformation therefore...dynamic control on the rise and fall of this cratonic region, we compare the 400 to 150 Ma burial and unroofing...shield (Fig. 1). New and published apatite (U–Th)/He (AHe) and apatite fission-track (AFT) data better resolve |  | | Journal (article/letter/editorial) | | indicators, we reconstructed the thermal history using apatite fission track and vitrinite reflectance data. In...of vitrinite reflectance and the fan model of apatite fission track (AFT) annealing were applied. The...2005). Bohai Bay Basin is located in the eastern region of the NCC (Figure 5(a)). Tectonic evolution of...different tectonic units in the Bohai Bay Basin using apatite fission track and vitrinite reflectance data. The...Peridotite xenoliths from the Eocene Homestead kimberlite pipe (~50 Ma) show a much hotter Eocene geotherm |  | | Book | | org/details/seventhinternati07inte SEVENTH INTERNATIONAL KIMBERLITE CONFERENCE Cape Town, April 1998 EXTENDED ABSTRACTS...Organising Committee of the 7th International Kimberlite Conference takes no responsibility for authors’...omissions. SOUTH AFRICA SEVENTH INTERNATIONAL KIMBERLITE CONFERENCE SPONSORS The 7IKC Organising Committee...recently discovered kimberlites of the Siberian kimberlite province. 9 K - rich clinopyroxenes as mantle...Chromite Macrocrysts and their Inclusions, Guaniamo Kimberlite Field, Venezuela. Primary and related diamond |  | | Journal (article/letter/editorial) | | and Geophysics, University of Calgary, Calgary, Canada AB T2N 1N4 b Department of Geology, Dickinson College...Sciences, University of British Columbia, Vancouver, Canada BC V6T 1Z4 Received 4 January 2007; accepted 31...Nisling (Ns), Nisling (Ns), Cassiar terrane (Ca), Lake George assemblage, and Seventymile-Slide Mountain...Devonian and Mississippian augen gneisses of the Lake George assemblage; no granulites have been detected...2). DuselBacon et al., (2002, 2006) interpret the Lake George assemblage as a parautochothonous continental |  | | Journal (article/letter/editorial) | | reflectance (Ro) (e.g. Sweeney and Burnham 1990) and apatite fission track (e.g. Laslett et al. 1987), and the...mW m‒2, starting in the Late Cretaceous. Some apatite fission track and Ro data from the Cenozoic strata...petrogeochemistry and tectonic evolution of this region (Chen 1988; Ren et al. 2002; Li et al. 2004; Xu...for over 50% of the surface heat flow in the study region, it is called the HC-CM structure. In this situation...based on Iherzolite xenoliths from the Udachnaya kimberlite, USSR: Geology, v. 12, p. 528–530. doi:10.11 |  | | Book | | Society (Fig. 2.14), Mineralogical Association of Canada (Fig. 9.23), Mineralogical Society of America (Fig...nomenclature. Examples are chromite, magnetite, apatite and ilmenite. 4 Post-magmatic minerals: minerals...are not distinguishable in transmitted light); • apatite. * See text. Igneous Rocks and Processes: A Practical... see Fig. 1.5); the dashed lines delineate the region of overlap between alkali and subalkali basalts...may also form near the base of a lava flow; such pipe vesicles (Fig. 2.8b) result from the upward invasion |  | | Book | | garnet peridotite xenolith from the Monastery kimberlite in South Africa. Polarizers are only partially...2, France D. Canil University of Victoria, BC, Canada M. J. Drake University of Arizona, Tucson, AZ,...USA R. W. Luth University of Alberta, Edmonton, Canada W. F. McDonough University of Maryland, College...pressure, temperature, and composition of the melting region or magma chamber changes during progressive melting...iron surrounded by a mixed iron—olivine zone. The region overlying the core contained material similar to |  | | Book | | continental crust, it is useful to begin by defining the region under consideration and to provide some generalities...rocks may not be representative of their source region. These elements include the alkali and alkaline-earth...natural division of the crust into thirds; (ii) the region beneath the upper crust and above a Conrad discontinuity...there is a layer beneath the Conrad; and (iii) the region immediately beneath the Conrad if there are two...Central Slave Province, Canada Host Xenolith types Types of analyses Pipe age Crust age Age References |  | | Report (volume) | | more than 10,000 prospectors to the semi-desert region, and inevitably led to the recognition of diamond...diamond in their volcanic host rock, dubbed kimberlite (Davies 1984; Hazen 1999). The South African kimberlites’...intrusion in coal/graphite; 2 = meteorite; 3 = kimberlite; 4 = other ultramafic **See Table 3 for locality...analysis shows that ophiolite-hosted Code Locality Canada C1 Jeffrey Mine, Quebec Carbides* 15 Type**...K K, M China C2 Fuxian kimberlite field, Liaoning Prov. C3 Mengyin kimberlite field, Linyi Prefecture |  | | Book | | position of 56Fe; and (iv) the abundance peaks in the region past iron at the neutron closed shell positions...mixing caused by the convection, the entire unstable region evolves essentially chemically homogeneously—replenishing...of burning region (central or shell burning) and depleting the fuel elsewhere in that region at the same...burning of this fuel then commences outside that region. Table 1 summarizes the burning stages and their...maximum temperatures that have been reached in each region in the preceding hydrostatic burning stages (Table |
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