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Sloan Kimberlite

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Journal Article
Journal: Economic Geology
Published: 01 December 1992
Economic Geology (1992) 87 (8): 2175-2179.
Journal Article
Published: 01 October 1971
American Mineralogist (1971) 56 (9-10): 1735-1749.
...M. E. Mccallum; D. H. Eggler Abstract The fault-controlled kimberlitic Sloan diatreme penetrates Precambrian granitic rocks near Prairie Divide in northern Colorado. The kimberlite is predominantly an intrusive breccia in which clasts consist of serpentine pseudomorphous after olivine and pyroxene...
Series: Society of Economic Geologists Guidebook Series
Published: 01 January 1996
DOI: 10.5382/GB.26
EISBN: 9781934969793
Journal Article
Journal: Economic Geology
Published: 01 March 2016
Economic Geology (2016) 111 (2): 503-525.
...M. Y. Krebs; D. G. Pearson; T. Stachel; R. A. Stern; T. Nowicki; S. Cairns Abstract First predictions of the macrodiamond grade of newly discovered kimberlites are commonly obtained using size frequency distributions of microdiamonds. The success of this approach suggests a common origin...
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Journal Article
Journal: Economic Geology
Published: 01 December 2005
Economic Geology (2005) 100 (8): 1565-1582.
... Shan, central China, which formed from deeply subducted leucocratic continental crustal material, and also with rare garnet inclusions in diamonds from Sloan diatremes in Colorado and Wyoming and the Finsch kimberlite pipe, South Africa. Decompression microstructures, such as crystallographic...
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Journal Article
Published: 01 June 2008
European Journal of Mineralogy (2008) 20 (3): 357-364.
.... Otter , M.L. & Gurney , J.J. ( 1989 ): Mineral inclusions in diamonds from the Sloan diatremes, Colorado-Wyoming State Line kimberlite district, North America . in “Kimberlite and Related Rocks, Vol. 2”. Geol. Soc. Australia Spec. Publ ., 14 , 1042 – 1053 . Pal’yanov , Y.N...
FIGURES
Journal Article
Published: 01 June 2004
South African Journal of Geology (2004) 107 (1-2): 59-80.
... 61 kimberlites in southern Africa define four broad arrays on the basis of Cr 2 O 3 – Mg# systematics, referred to as H-, M-, L-and diffuse trends. M-trend megacrysts, representing typical Cr-poor megacryst compositions, occur over much of the southwestern Kaapvaal Craton, continuing...
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Journal Article
Published: 01 January 2001
Rocky Mountain Geology (2001) 36 (1): 1-12.
... – 357 . McCallum , M. E. , 1991 , The Sloan 1 and Sloan 2 Kimberlite complex near the southern boundary of the State Line district of the Colorado-Wyoming kimberlite province : Wyoming Geological Association Guidebook, 42nd Field Conference , p. 229 – 250 . McCallum , M. E...
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Journal Article
Published: 01 April 2001
The Canadian Mineralogist (2001) 39 (2): 361-376.
... kimberlites ( e.g., 14 samples from Sloan, Colorado), and the mantle sampled by these kimberlites may be, on average, more aluminous than the mantle sampled by southern African kimberlites in this study. The vast majority of spinel-group samples from peridotites in the Colorado–Wyoming kimberlite province...
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Journal Article
Published: 05 September 2003
Canadian Journal of Earth Sciences (2003) 40 (8): 1027-1051.
... be used to provide some estimate of the range of depletion of protoliths from which the garnet suites are derived. Using such a correlation, garnets from the Sloan, Williams, and Iron Mountain kimberlites appear to be derived from more depleted protoliths with <2 wt.% Al 2 O 3 (Fig.  10...
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Journal Article
Journal: Economic Geology
Published: 01 May 2014
Economic Geology (2014) 109 (3): 775-783.
.... McCallum M.E. , 1986 , Mineral inclusions in diamonds from the Sloan kimberlites, Colorado : The Journal of Geology , v. 94 , p. 600 – 612 . Mitchell R.H. , 1973 , Magnesian ilmenite and its role in kimberlite petrogenesis : The Journal of Geology , v. 81 , p. 301 – 311...
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Journal Article
Published: 01 January 1998
Rocky Mountain Geology (1998) 33 (2): 293-304.
... in several of the State Line kimberlites, but those samples with the least secondary alteration have been obtained from the Nix and Sloan diatremes ( Fig. 1b ). These xenoliths include spinel, spinel–garnet, and garnet peridotite as well as eclogite, pyroxenite, and websterite ( Eggler et al., 1987a...
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Journal Article
Published: 01 April 2006
The Canadian Mineralogist (2006) 44 (2): 323-340.
... diamond from the Quebrada Grande kimberlite sills and placer deposits, both located 50 km to the southeast. The diamond crystals in the Los Coquitos placer are generally similar to those of the Quebrada Grande area, but with significant morphological differences. Diamond from the Los Coquitos placer has...
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Journal Article
Published: 01 December 2000
The Canadian Mineralogist (2000) 38 (6): 1347-1370.
...Felix V. Kaminsky; Olga D. Zakharchenko; William L. Griffin; Dominic M. DeR. Channer; Galina K. Khachatryan-Blinova Abstract More than 5,000 diamond crystals (or fragments) from kimberlite sills and placer deposits in the Guaniamo area of Venezuela have been characterized in terms of morphology...
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Image
Sc&#x2F;V and Y for garnets from <b>kimberlites</b> from ( a ) the Fort a la Corne and ...
Published: 05 September 2003
Fig. 8. Sc/V and Y for garnets from kimberlites from ( a ) the Fort a la Corne and Stockdale kimberlites, and ( b ) Williams, Sloan, Iron Mountain and Cross kimberlites. Note scarcity of garnets with Sc/V>1 and Y<5 ppm in kimberlites from Proterozoic provinces ( a ).
Journal Article
Published: 01 November 2005
American Mineralogist (2005) 90 (11-12): 1759-1766.
... in silicate melts and crystals: Part I. Solubility measurements . American Journal of Science , 276 , 455 – 579 . Otter , M.L. and Gurney , J.J. ( 1989 ) Mineral inclusions in diamonds from the Sloan diatremes, Colorado-Wyoming State Line kimberlite district, North America . In J...
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Journal Article
Published: 01 June 2002
The Canadian Mineralogist (2002) 40 (3): 871-884.
... ): A geotherm from megacrysts in the Sloan kimberlite pipes, Colorado . Carnegie Inst. Wash., Yearb . 75 , 538 – 541 . Girnis , A.V. , Stachel , T. , Brey , G.P. , Harris , J.W. & Phillips , D. ( 1999 ): Internally consistent geothermobarometers for garnet harzburgites: model...
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Journal Article
Published: 01 June 2008
European Journal of Mineralogy (2008) 20 (3): 305-315.
... , 2 , 1029 – 1041 . Otter , J.J. & Gurney , J.J. ( 1989 ): Mineral inclusions in diamonds from the Sloan diatremes, Colorado-Wyoming State Line kimberlite district, North America . in “Kimberlites and Related Rocks” . GSA Spec. Publ. No. 14 , 2 , 1042 – 1053 . Pearson...
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Journal Article
Published: 01 June 2004
South African Journal of Geology (2004) 107 (1-2): 131-146.
...K.J. Westerlund; J.J. Gurney Abstract The diamonds associated with the 148 Ma Group II Klipspringer kimberlite dyke system emplaced on the Thabazimbi-Murchison Lineament are predominantly of eclogitic origin, and in a parallel study have been demonstrated to have a late Archean origin. Fourier...
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Journal Article
Journal: Economic Geology
Published: 01 May 2010
Economic Geology (2010) 105 (3): 689-712.
... eruption, continuing a process of volatile enrichment in the lithospheric mantle already identified in the Archean harzburgite diamond event. Mantle-derived SCD commonly shows evidence of resorption, illustrating that diamond-unfriendly processes, including lamproite and kimberlite generation, are also...
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