 | Schulze, Daniel J., Coopersmith, Howard G., Harte, Ben, Pizzolato, Lori-Ann (2008) Mineral inclusions in diamonds from the Kelsey Lake Mine, Colorado, USA: Depleted Archean mantle beneath the Proterozoic Yavapai province. Geochimica et Cosmochimica Acta, 72 (6) 1685-1695 doi:10.1016/j.gca.2007.09.037 | Journal (article/letter/editorial) | | inclusions in diamonds from the Kelsey Lake Mine, Colorado, USA: Depleted Archean mantle beneath the Proterozoic...Associates, P.O. Box 1916, Fort Collins, CO 80522, USA School of GeoSciences, Grant Institute of Earth Science...the Kelsey Lake Mine in the Colorado-Wyoming State Line Kimberlite district. Eighteen olivines, seven Cr-pyropes...the other diamond suites studied in the State Line district (Sloan, George Creek), which are overwhelmingly...worldwide, but unlike the more Fe-rich (lherzolitic) Sloan olivine suite. Mg-chromites (wt% MgO = 12.8–13.8; |  | | Journal (issue) | | Page Diamonds in Colorado! The State Line Kimberlite District, Colorado & Wyoming, USA By Philip Persson...Mineralogy and History of Silver Deposits in the Calico District, California By Jeremy Zolan, jzolansci@gmail.com...Macdonald Bernard Makowski Jane Mannon Maricopa Mining John Marshall Stephanie Martin Miyairi Masumi ...Tonkacheev Robert Tripp Bruce Ueno Malcolm Uffelman UK Mining Ventures Paul Vela Earl Verbeek Yannick Verbelen...Zzyzx Diamonds in Colorado! The State Line Kimberlite District, Colorado & Wyoming, USA Philip Persson |  | | Journal (article/letter/editorial) | | 2310, Australia AND G. DUNCAN Rimfire Pacific Mining NL, Room 810, 530 Little Collins Street, Melboure...modern drainage system and soils in the Bingara district was undertaken to search for a hard-rock diamond...the low metamorphic grade country rock in the district. Using the major element classification scheme...in diamonds from Sloan diatremes in Colorado and Wyoming and the Finsch kimberlite pipe, South Africa...diamonds were produced, mainly from 19th century mining (MacNevin, 1977; Brown, 1995). High-quality diamond |  | | Journal (article/letter/editorial) | | Syngenetic diamond inclusions from the Mwadui kimberlite reveal that an unusually fertile section of lithospheric...Mwadui Mine has the scope to provide data on the state of the lithospheric upper mantle beneath Tanzania...Williamson Mine) in Western Tanzania is the largest kimberlite pipe in the world (146 ha) and lies within an...two Mwadui garnets the common high sodium trend line supports primary crystallisation from a similar...180 lm) of garnet and chromite. Analytical pro®les (EPMA) over the garnet-chromite contact show strong |  | Sobolev, Nikolai V., Logvinova, Alla M., Zedgenizov, Dmitry A., Pokhilenko, Nikolai P., Kuzmin, Dmitry V., Sobolev, Alexander (2008) Olivine inclusions in Siberian diamonds: high-precision approach to minor elements. European Journal of Mineralogy, 20 (3) 305-315 doi:10.1127/0935-1221/2008/0020-1829 | Journal (article/letter/editorial) | | eclogites in kimberlites. In primary, diamond-bearing kimberlite and lamproite rocks the ratio of diamonds from...non touching inclusions with enstatite, pyrope, chromite in harzburgitic or dunitic (without enstatite)...associated with enstatite, Cr-rich diopside, pyrope and chromite were studied from diamonds of major Siberian mines...minor elements, Siberian Craton, peridotite, kimberlite. Introduction Oceanic crust subduction and recycling...with olivine, enstatite, Cr-rich diopside and chromite in U(P)-type diamond (Sobolev et al., 1973). The |  | | Journal (article/letter/editorial) | | et al. 1989), Monastery (Moore and Gurney 1989), Sloan (Otter and Gurney 1989), Sao Luiz (Harte and Harris...room temperature would correspond to the dashed line in Fig. 1. The data of Fig. 1 indicate that the...Ryan CG, Gurney JJ, Sobolev NV, Win TT (1994) Chromite macrocrysts in kimberlites and lamproites: geochemistry...1-1, p 391 Mao HK, Bell PM (1979) Equation of state of MgO and e Fe under static pressure conditions...Mineral inclusions in diamond from Monastery kimberlite, South Africa. In: Ross J, et al (eds) Kimberlites |  | | Journal (article/letter/editorial) | | Mineral inclusions in diamonds from the Sputnik kimberlite pipe, Y akutia N.V. Sobolev a, F.V. Kaminsky... Moscow 117593, Russia ’ CSIRO Exploration and Mining, PO Box 136, North Ryde, NSW 2113, Australia d...accepted 10 September 1996 Abstract The Sputnik kimberlite pipe is a small “satellite” of the larger Mir...suite comprises olivine, enstatite, Cr-diopside, chromite, Cr-pyrope garnet (both lherzolitic and harzburgitic)...ilmenites known from peridotite xenoliths in kimberlite. Eclogitic phlogopite is intergrown with omphacite |  | Sobolev, N.V., Logvinova, A.M., Zedgenizov, D.A., Seryotkin, Y.V., Yefimova, E.S., Floss, C., Taylor, L.A. (2004) Mineral inclusions in microdiamonds and macrodiamonds from kimberlites of Yakutia: a comparative study. Lithos, 77 (1) 225-242 doi:10.1016/j.lithos.2004.04.001 | Journal (article/letter/editorial) | | Sciences, Washington University, St. Louis, MO 63130, USA c Planetary Geosciences Institute, Department of...The University of Tennessee, Knoxville, TN 37996, USA Received 27 June 2003; accepted 14 December 2003...Siberian craton; Yakutia; Eclogite; Peridotite; Kimberlite * Corresponding author. Fax: +7-3832-332-792...carats. This gives a size range for diamonds in kimberlite spanning four to five orders of magnitude. The...Sobolev and Burov, Fig. 1. Location of major kimberlite fields of the Siberian Platform of Paleozoic |  | Davies, Rondi M., Griffin, William L., O'Reilly, Suzanne Y., Doyle, Buddy J. (2004) Mineral inclusions and geochemical characteristics of microdiamonds from the DO27, A154, A21, A418, DO18, DD17 and Ranch Lake kimberlites at Lac de Gras, Slave Craton, Canada☆. Lithos, 77 (1) 39-55 doi:10.1016/j.lithos.2004.04.016 | Journal (article/letter/editorial) | | Sydney NSW 2109, Australia b CSIRO Exploration and Mining, P.O. Box 136, North Ryde, NSW 1670, Australia...isotope, nitrogen content, nitrogen aggregation state and morphological study of 576 microdiamonds from...abundances are similar to macrodiamonds from the DO27 kimberlite (Davies, R.M., Griffin, W.L., O’Reilly, S.Y....), The J. B. Dawson Vol., Proc. 7th Internat. Kimberlite Conf., Red Roof Designs, Cape Town, pp. 148 –...Diamonds from the Panda Kimberlite, S. P., Canada. 8th International Kimberlite Conference, extended abstracts) |  | | Journal (article/letter/editorial) | | Polishing-Exposed Solid-Phase Mineral Inclusions in Fuxian Kimberlite Diamonds Donggao Zhao Electron Microscope Laboratory...of Missouri-Kansas City, Kansas City, MO 64108, USA; zhaodo@umkc.edu Citation: Zhao, D. Electron Probe...Polishing-Exposed Solid-Phase Mineral Inclusions in Fuxian Kimberlite Diamonds. Minerals 2022, Abstract: Solid-phase...diamond (1–3 mm in diameter) from the No. 50 kimberlite diatreme of Liaoning Province, China, were exposed...The common solid-phase inclusions are olivine, chromite, garnet and orthopyroxene; the rare phases include |  | Griffin, W. L., Win, T. T., Davies, R., Wathanakul, P., Andrew, A., Metcalfe, I., Cartigny, P. (2001) Diamonds from Myanmar and Thailand: Characteristics andPossible Origins. Economic Geology, 96 (1) 159-170 doi:10.2113/gsecongeo.96.1.0159 | Journal (article/letter/editorial) | | and Mining, North Ryde, New South Wales 2113, Australia T. T. WIN, CSIRO Exploration and Mining, North...Myanmar. The Momeik diamonds are recovered during mining of gemstone gravels; the Theindaw and Phuket diamonds...history, nitrogen concentration and aggregation state, and isotopic composition of diamonds from Myanmar...indicator minerals (pyrope garnet, chrome diopside, chromite, magnesian ilmenite) associated with the diamonds...n/a 9 12 38 δ13C Paris δ15N Paris Inclusions Chromite Olivine Olivine –4.71 –8.46 –5.19 –17.74 –5.77 |  | | Journal (article/letter/editorial) | | extant at the time of emplacement of the host kimberlite or lamproite. Some inclusions record thermal...celui qui existait lors de la mise en place de la kimberlite ou la lamproïte hôte, voire même plus froid que...and would therefore reflect the ambient thermal state of the mantle at the time of eruption. Taking into...inclusions selected fall above or immediately below the line used by Nimis (1998) to separate diopside in garnet...in diamond pertain to diamond from the classic kimberlite fields of the Kaapvaal (southern Africa) and |  | | Journal (article/letter/editorial) | | Mineral inclusions in diamonds from the River Ranch kimberlite, Zimbabwe Received: 11 January 1995 / Accepted:...demonstrates a limited overlap with River Ranch kimberlite macrocrysts: the DI garnets are more Ca-undersaturated...economic kimberlites. Mineral chemistry of the LMB kimberlite indicator minerals suggests higher diamond potential...Martin's Drift kimberlite. River Ranch is presently the only diamond producing kimberlite mine in Zimbabwe...kimberlites have been discovered as of 1996. Like the kimberlite itself, all the xenolithic mantle material found |  | Taylor, Lawrence A., Anand, Mahesh, Promprated, Prinya, Floss, Christine, Sobolev, Nikolai V. (2003) The significance of mineral inclusions in large diamonds from Yakutia, Russia. American Mineralogist, 88 (5) 912-920 doi:10.2138/am-2003-5-621 | Journal (article/letter/editorial) | | (10–200 carats) from Udachnaya, Mir, and Aikhal kimberlite pipes of Yakutia contain variable mineral inclusions...lherzolitic and eclogitic groups, in addition to chromite diamond inclusions (DIs). The most striking feature...samples of DIs from the Udachnaya, Mir, and Aikhal kimberlite pipes. In this report, we present detailed major-...trace-element chemistry of a special set of garnet and chromite DIs from this sampling. This study is directed...investigated visually, 56 revealed garnet and chromite inclusions that could be sampled effectively without |  | | Journal (article/letter/editorial) | | extraordinary amounts of silicate spinel component in chromite inclusions, indicative of crystallisation under...discovered originally in 1919 at Abomoso. The largest mining operation in the Birim diamond ®eld is located...ppm for calcium in olivine and 30 ppm for Zn in chromite. Standards were diopside and pure Zn. Carbon isotopic...vacuum mass spectrometer and associated extraction line as described by Boyd et al. (1993). Typical error...Akwatia region actually are strongly weathered kimberlite, thus possibly establishing the presence of a |  | | Journal (article/letter/editorial) | | intergrowths, with garnet + orthopyroxene F chromite F olivine and chromite + olivine assemblages dominant. More...garnets exhibit intermediate compositions. Most chromite inclusions contain 63 – 67 wt.% Cr2O3 and < 0...with Mg-numbers of 93 – 97. Olivine inclusions in chromite exhibit the highest Mg-numbers and also contain...re-equilibration in a cooling mantle ( f 1050 jC) prior to kimberlite eruption at f 85 Ma. Pressure estimates for touching...diamonds are significantly older than the host kimberlite/lamproite magma, with some retaining mantle signatures |  | | Journal (article/letter/editorial) | | olivine inclusions in diamonds from the same kimberlite pipe (92-95). The following model is proposed...Department of Geosciences, State University of New York, Stony Brook, NY 11794-2100, USA. as its very simple...were transported to the earth’s surface through kimberlite magmatism. Mineral inclusions in diamonds can...suites, e.g., ultramafic (olivine, orthopyroxene, chromite and pyrope garnet) and eclogitic suite (sodic...through comparison with eclogite xenoliths in kimberlite. In this study, two rare diamonds with “mixed” |  | Kaminsky, F., Zakharchenko, O., Davies, R., Griffin, W., Khachatryan-Blinova, G., Shiryaev, A. (2001) Superdeep diamonds from the Juina area, Mato Grosso State, Brazil. Contributions to Mineralogy and Petrology, 140 (6) 734-753 doi:10.1007/s004100000221 | Journal (article/letter/editorial) | | Superdeep diamonds from the Juina area, Mato Grosso State, Brazil Received: 29 May 2000 / Accepted: 30 October...unidenti®ed Si-Mg phase. Neither Cr-pyrope nor Mg-chromite was found as inclusions. The spinel inclusions...2109, Australia W. L. Grin CSIRO Exploration and Mining, P.O. Box 128, North Ryde, NSW 1609, Australia...Introduction The Juina area is a major diamond mining area in Brazil (Fig. 1). In the late 1980s±early...ct (Gaspar et al. 1998). There are at least 26 kimberlite pipes in the area. Some of them are subeconomic |  | Taylor, Lawrence A., Milledge, H. Judith, Bulanova, Galina P., Snyder, Gregory A., Keller, Randall A. (1998) Metasomatic Eclogitic Diamond Growth: Evidence from Multiple Diamond Inclusions. International Geology Review, 40 (8) 663-676 doi:10.1080/00206819809465230 | Journal (article/letter/editorial) | | their inclusions, and host eclogites from the Mir kimberlite, Yakutia, Russia form the basis for our evaluation...inclusions in kimberlite and thus are xenocrysts, the association of diamond and kimberlite being one of...eclogites (e.g., Haggerty, 1986)—and not of the kimberlite per se. These mantle xenoliths and their diamonds...formation and growth continues up to the time of kimberlite emplacement (Phillips et al., 1989). For example...successful experiment to crystallize diamond from a kimberlite melt was achieved at temperatures (1800° to 2000°C |  | Griffin, William L., Huang, Jin-Xiang, Thomassot, Emilie, Gain, Sarah E. M., Toledo, Vered, O’Reilly, Suzanne Y. (2018) Super-reducing conditions in ancient and modern volcanic systems: sources and behaviour of carbon-rich fluids in the lithospheric mantle. Mineralogy and Petrology, 112. 101-114 doi:10.1007/s00710-018-0575-x | Journal (article/letter/editorial) | | monotonic trend significantly increase the oxidation state W. L. Griffin et al. of depleted cratonic peridotites...(Marshintsev 1990), the North China Craton (Fuxian kimberlite; Leung 1990), the Argyle lamproite in Australia...1989), Juina, Brazil (Hutchison 1997), the Sloan diatremes in North America and Monastery Mine in South...in microdiamond residues from the Swartruggens kimberlite (South Africa). The Ti-corundum+SiC association...run-of-mine diamond populations from the Orapa kimberlite contain a high proportion of diamonds with δ13C |  | | Journal (article/letter/editorial) | | the nineteenth century, when diamond-bearing kimberlite pipes were first recognised, was it realised...exploitation. The main sources of macrodiamonds are kimberlite and lamproite, and it is the manner of formation...for commercial exploitation, also occur within kimberlite and lamproite, and there have been suggestions...isotopic composition and the content and aggregation state of nitrogen in peridotitic and eclogitic diamonds...morphology and structures also reflect the phase state of the growth environment, i.e. fluid or solid. |  | Griffin, W. L., Doyle, B. J., Ryan, C. G., Pearson, N. J., Suzanne, Y. O., Davies, R., Kivi, K., Van Achterbergh, E., Natapov, L. M. (1999) Layered Mantle Lithosphere in the Lac de Gras Area, Slave Craton: Composition, Structure and Origin. Journal of Petrology, 40 (5) 705-727 doi:10.1093/petroj/40.5.705 | Journal (article/letter/editorial) | | SYDNEY, NSW 2109, AUSTRALIA 2 CSIRO EXPLORATION AND MINING, PO BOX 126, NORTH RYDE, NSW 2113, AUSTRALIA 3...chromites) and xenoliths from 21 Cretaceous–Tertiary kimberlite intrusions have been used to map the lithospheric...Temperature ( TZn) have been used to place garnet and chromite xenocrysts, respectively, in depth context. Paleogeotherms...and most of the remainder come from a single kimberlite (Udachnaya) on the Siberian craton. These two...show that the composition, structure and thermal state of the Kaapvaal lithosphere changed markedly ~90 |  | | 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...and Composition of Chromite Macrocrysts and their Inclusions, Guaniamo Kimberlite Field, Venezuela. Primary |  | Sobolev, Nikolai V., Sobolev, Vladimir N., Snyder, Gregory A., Yefimova, Emiliya S., Taylor, Lawrence A. (1999) Significance of Eclogitic and Related Parageneses of Natural Diamonds. International Geology Review, 41 (2) 129-140 doi:10.1080/00206819909465135 | Journal (article/letter/editorial) | | typical peridotitic minerals such as ol ivine, chromite, enstatite, pyrope, and chromium diopside as numerous...extreme ly variable in their parageneses. The Mir kimberlite pipe in Yakutia is the best example for such...pyroxenite and websterite from the Udachnaya kimberlite were described by Ponomarenko et al. (1980)....inclusions taken from 18 diamonds from the Dianga kimberlite (dated as Jurassic), lo cated in the northern... right side) intergrowlh (sample Mr-664, Mir kimberlite, Yakutia). D. Garnet-coesite intergrowth in X-ray |  | Krebs, M. Y., Pearson, D. G., Stachel, T., Stern, R. A., Nowicki, T., Cairns, S. (2016) Using Microdiamonds in Kimberlite Diamond Grade Prediction: A Case Study of the Variability in Diamond Population Characteristics Across the Size Range 0.2 to 3.4 mm in Misery Kimberlite, Ekati Mine, NWT, Canada. Economic Geology, 111 (2) 503-525 doi:10.2113/econgeo.111.2.503 | Journal (article/letter/editorial) | | v. 111, pp. 503–525 Using Microdiamonds in Kimberlite Diamond Grade Prediction: A Case Study of the...Across the Size Range 0.2 to 3.4 mm in Misery Kimberlite, Ekati Mine, NWT, Canada* M. Y. Krebs,1,† D....size-frequency analysis to predict diamond grade in kimberlite diamond deposits. Introduction In diamond exploration...Archean craton with a cool mantle root. Over 300 kimberlite occurrences are known from the Slave craton,...assumes efficient mixing of macrodiamonds within a kimberlite body, thus making bulk sampling results a proxy |
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