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Journal Article

Petrology of the Abloviak Aillikite dykes, New Québec: evidence for a Cambrian diamondiferous alkaline province in northeastern North America Available to Purchase

Stéphane Digonnet, Normand Goulet, James Bourne, Ross Stevenson, Doug Archibald
Published: 03 April 2000
Canadian Journal of Earth Sciences (2000) 37 (4): 517–533.
DOI: https://doi.org/10.1139/e00-008
... ultramafic intrusions commonly contains excess argon and step-heating does not always accurately record the age of emplacement (e.g., Phillips and Onstott 1986 ). Diamonds are known to occur in diverse rock types including kimberlite, orangeite, lamproite, aillikite and ultramafic lamprophyre. Thus...
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View PDF for article title, Petrology of the Abloviak <span class="search-highlight">Aillikite</span> dykes, New Québec: evidence for a Cambrian diamondiferous alkaline province in northeastern North America
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(A) Representative aillikite hand specimen from the Tarim large igneous province of NW China. (B) Microphotograph showing the heterogranular porphyritic texture of aillikites with macrocrysts and microcrysts of olivine, phlogopite, amphibole, magnetite, and apatite. (C) Subhedral amphibole microcryst composed of light brown anhedral cores, dark brown rim, and light green outmost rim (showing a “disequilibrium texture”). (D) Euhedral amphibole microcryst consisting of a dark brown core and a light green rim with abundant iron oxide inclusions. (E) Coarse-grained anhedral amphibole macrocrysts. (F) Resorbed and embayed amphibole macrocryst partially replaced by mica (“breakdown texture”). Panels B–F are in plane-polarized light. Amp—amphibole; Ap—apatite; Cal—calcite; Mag—Ti-magnetite; Ol—olivine; Phl—phlogopite; Prv—perovskite.

(A) Representative aillikite hand specimen from the Tarim large igneous pro... Available to Purchase

Published: 20 September 2023
Figure 2. (A) Representative aillikite hand specimen from the Tarim large igneous province of NW China. (B) Microphotograph showing the heterogranular porphyritic texture of aillikites with macrocrysts and microcrysts of olivine, phlogopite, amphibole, magnetite, and apatite. (C) Subhedral
Image
(a) Field photograph of the Wajilitag aillikite intruded by tephrite dike. (b) Olivine macrocrysts in the aillikite hand specimen. (c) Inequigranular porphyritic textured aillikites comprising abundant olivine, phlogopite, amphibole, and clinopyroxene, plane-polarized light. (d) Same as c, but in cross-polarized light. (e) Dunite nodule mainly consisting of olivine and minor Cr-spinel, plane-polarized light. (f) Olivine-bearing clinopyroxenite nodule. Euhedral olivine macrocrysts disseminate in interstitial space between clinopyroxene, plane-polarized light. (g–h) Amphibole and phlogopite distributed in the carbonate-rich matrix, BSE image. (i) Calcite segregation coexists with phlogopite, Ti-magnetite and perovskite in the matrix, BSE image. Ol = olivine; Phl = phlogopite; Cpx = clinopyroxene; Amp = amphibole; Cr-Spl = Cr-spinel; Prv = perovskite; Ap = apatite; Cal = calcite; Ti-Mag = titanomagnetite; Grt = Ti-rich andradite garnet; Srp = serpentine. (Color online.)

( a ) Field photograph of the Wajilitag aillikite intruded by tephrite dike... Available to Purchase

Published: 01 July 2021
Figure 2. ( a ) Field photograph of the Wajilitag aillikite intruded by tephrite dike. ( b ) Olivine macrocrysts in the aillikite hand specimen. ( c ) Inequigranular porphyritic textured aillikites comprising abundant olivine, phlogopite, amphibole, and clinopyroxene, plane-polarized light. ( d
Journal Article

Olivine from aillikites in the Tarim large igneous province as a window into mantle metasomatism and multi-stage magma evolution Available to Purchase

Changhong Wang, Zhaochong Zhang, Qiuhong Xie, Zhiguo Cheng, Weiliang Kong, Bingxiang Liu, M. Santosh, Shengkai Jin
Published: 01 July 2021
American Mineralogist (2021) 106 (7): 1064–1076.
DOI: https://doi.org/10.2138/am-2021-7521
...Figure 2. ( a ) Field photograph of the Wajilitag aillikite intruded by tephrite dike. ( b ) Olivine macrocrysts in the aillikite hand specimen. ( c ) Inequigranular porphyritic textured aillikites comprising abundant olivine, phlogopite, amphibole, and clinopyroxene, plane-polarized light. ( d...
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Journal Article

Composition of Phlogopite from Ultramafic Lamprophyres as an Indicator of Formation Conditions (Zima Alkaline Ultramafic Carbonatite Complex, Southern Siberian Craton) Available to Purchase

Ya.N. Nugumanova, A.G. Doroshkevich, A.E. Starikova, A.V. Ponomarchuk
Published: 01 November 2024
Russ. Geol. Geophys. (2024) 65 (11): 1285–1301.
DOI: https://doi.org/10.2113/RGG20244748
...Ya.N. Nugumanova; A.G. Doroshkevich; A.E. Starikova; A.V. Ponomarchuk Abstract ––The paper presents data on the age and composition of phlogopite from dikes of ultramafic lamprophyres (aillikites) of the Zima Complex located within the Urik–Iya graben in the East Sayan region (southern margin...
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View PDF for article title, Composition of Phlogopite from Ultramafic Lamprophyres as an Indicator of Formation Conditions (Zima Alkaline Ultramafic Carbonatite Complex, Southern Siberian Craton)
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Journal Article

Water contents and hydrogen isotope compositions of amphibole in aillikites from the Tarim large igneous province, NW China: Insight into Earth’s deep water cycle Available to Purchase

Changhong Wang, Zhaochong Zhang, Andrea Giuliani, Hongze Bo, Lukáš Krmíček, Xiaoguang Li
Journal: GSA Bulletin
Published: 20 September 2023
GSA Bulletin (2024) 136 (5-6): 2097–2110.
DOI: https://doi.org/10.1130/B36906.1
...Figure 2. (A) Representative aillikite hand specimen from the Tarim large igneous province of NW China. (B) Microphotograph showing the heterogranular porphyritic texture of aillikites with macrocrysts and microcrysts of olivine, phlogopite, amphibole, magnetite, and apatite. (C) Subhedral...
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View PDF for article title, Water contents and hydrogen isotope compositions of amphibole in <span class="search-highlight">aillikites</span> from the Tarim large igneous province, NW China: Insight into Earth’s deep water cycle
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Binary FeOtot–Al2O3 diagrams for phlogopite from ultramafic lamprophyres of the Zima alkaline ultramafic carbonatite complex. inc II – phlogopite from polycrystalline inclusions, inc – phlogopite from inclusions in chromites. Arrows show the core-rim composition trends of phlogopite grain. Composition fields of phlogopite from mantle rocks: MARID (phlogopite–amphibole–rutile–ilmenite–diopside-containing rock), PIC (phlogopite–ilmenite–clinopyroxene-containing rock), PB (xenoliths of polymict breccia from the Kimberley Province, SAR), KG (kimberlite groundmass), and Ti–K (high-Ti phlogopite from South African kimberlites (Kargin, 2021). 1 – phlogopite from more evolved aillikite melt; 2 – phlogopite from the original aillikite melt.

Binary FeO tot –Al 2 O 3 diagrams for phlogopite from ultramafic lamprophy... Available to Purchase

Published: 01 November 2024
-Ti phlogopite from South African kimberlites ( Kargin, 2021 ). 1 – phlogopite from more evolved aillikite melt; 2 – phlogopite from the original aillikite melt.
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40Ar/39Ar age spectra for phlogopite from aillikites from the Yuzhnaya pipe (a) and the Bol’shaya Tagna intrusion (b).

40 Ar/ 39 Ar age spectra for phlogopite from aillikites from the Yuzhnaya p... Available to Purchase

Published: 01 November 2024
Fig. 4. 40 Ar/ 39 Ar age spectra for phlogopite from aillikites from the Yuzhnaya pipe ( a ) and the Bol’shaya Tagna intrusion ( b ).
Journal Article

Alkaline mafic and ultramafic lamprophyres from the Aillik Bay area, Labrador Free

J. Malpas, S. F. Foley, A. F. King
Published: 01 December 1986
Canadian Journal of Earth Sciences (1986) 23 (12): 1902–1918.
DOI: https://doi.org/10.1139/e86-178
...J. Malpas; S. F. Foley; A. F. King Abstract The Aillik Bay lamprophyric dyke swarm comprises abundant sannaites, plus rarer olivine sannaites, aillikites and carbonatites. Sannaites are characterized by phenocrysts of Ti–Al titansalite plus rarer olivine and phiogopite in a groundmass dominated...
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Journal Article

CARBONATITES AND CARBONATITES AND CARBONATITES Available to Purchase

Roger H. Mitchell
Published: 01 December 2005
The Canadian Mineralogist (2005) 43 (6): 2049–2068.
DOI: https://doi.org/10.2113/gscanmin.43.6.2049
... diverse mantle-derived magmas, i.e. , carbonatites associated with the melilitite, nephelinite, aillikite and kimberlite clans, with the latter best being termed calcite kimberlites. Each magma type and associated carbonatites are considered to be genetically distinct, and formed at different depths...
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Forsterite (Fo) vs. (a) Ni, (b) Mn, (c) Ca, and (d) aspect ratio variation for groundmass olivines and macrocrysts from the Wajilitage aillikites. Forsterite contents for the olivines are measured with EMPA and Ni, Mn, and Ca with LA-ICP-MS. Note that the Ni, Mn, and Ca contents of olivine IIb are from EMPA analyses. The olivine aspect ratios are measured with microscopic analyses. Olivine data from aillikites of the Aillik Bay and Chadobets areas are also included for comparison (Tappe et al. 2006; Veter et al. 2017; Nosova et al. 2018). Kamchatka arc olivine data are from Gavrilenko et al. (2016) and OIB and MORB data from Sobolev et al. (2007). (Color online.)

Forsterite (Fo) vs. ( a ) Ni, ( b ) Mn, ( c ) Ca, and ( d ) aspect ratio va... Available to Purchase

Published: 01 July 2021
Figure 6. Forsterite (Fo) vs. ( a ) Ni, ( b ) Mn, ( c ) Ca, and ( d ) aspect ratio variation for groundmass olivines and macrocrysts from the Wajilitage aillikites. Forsterite contents for the olivines are measured with EMPA and Ni, Mn, and Ca with LA-ICP-MS. Note that the Ni, Mn, and Ca contents
Image
BSE images of inclusions in olivines from aillikites from the Bushkanai dike (Bush 3/21). Cpx – clinopyroxene, Mgt – magnetite, Ol – olivine, Phl – phlogopite, Srp – serpentine. Capital letters mark olivines, and lowercase letters denote inclusions in them.

BSE images of inclusions in olivines from aillikites from the Bushkanai dik... Available to Purchase

Published: 01 November 2024
Fig. 11. BSE images of inclusions in olivines from aillikites from the Bushkanai dike (Bush 3/21). Cpx – clinopyroxene, Mgt – magnetite, Ol – olivine, Phl – phlogopite, Srp – serpentine. Capital letters mark olivines, and lowercase letters denote inclusions in them.
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Schematic illustration (not to scale) illustrating the possible evolution of the Wajilitag aillikite magmatic system. See text for detailed descriptions. (Color online.)

Schematic illustration (not to scale) illustrating the possible evolution o... Available to Purchase

Published: 01 July 2021
Figure 10. Schematic illustration (not to scale) illustrating the possible evolution of the Wajilitag aillikite magmatic system. See text for detailed descriptions. (Color online.)
Image
Major element covariation plots and cation substitutions in amphibole in the Wajilitag aillikites from the Tarim large igneous province of NW China: (A) MgO versus Al2O3. (B) Mg# versus Si expressed as atoms per formula unit (apfu) amphibole classification diagram (Leake et al., 1997). (C) Pressure-sensitive Al-Tschermak exchange (MgVI + 2SiIV = AlVI + 2AlIV). (D) Temperature-sensitive edenite exchange [()A + SiIV = (K + Na)A + AlIV]. (E) Clinopyroxene-coprecipitation related exchange (NaA + SiIV = CaA + AlIV). (F) Temperature-sensitive Ti-Tschermak exchange (MnVI + 2SiIV = TiVI + 2AlIV). Cations are expressed in apfu. The number of oxygens used to calculate the cation abundances is 24. Amphiboles in aillikites of the Aillik Bay areas are from Tappe et al. (2004).

Major element covariation plots and cation substitutions in amphibole in th... Available to Purchase

Published: 20 September 2023
Figure 4. Major element covariation plots and cation substitutions in amphibole in the Wajilitag aillikites from the Tarim large igneous province of NW China: (A) MgO versus Al 2 O 3 . (B) Mg# versus Si expressed as atoms per formula unit (apfu) amphibole classification diagram ( Leake et al
Image
Classification diagram for micas from aillikites of the Zima Complex (Mitchell, 1995). Composition points fall in the field of phlogopite (gray field). 1 – TGK 1, 2 – TGK 3, 3 – TGK 6/21, 4 – Bush 3/21, 5 – BZT 4/21.

Classification diagram for micas from aillikites of the Zima Complex ( Mitc... Available to Purchase

Published: 01 November 2024
Fig. 6. Classification diagram for micas from aillikites of the Zima Complex ( Mitchell, 1995 ). Composition points fall in the field of phlogopite (gray field). 1 – TGK 1, 2 – TGK 3, 3 – TGK 6/21, 4 – Bush 3/21, 5 – BZT 4/21.
Journal Article

The “Lamprophyre Clan” Revisited Available to Purchase

Ioannis Kamvisis, Pothuri Ramesh Chandra Phani
Published: 01 September 2022
Jour. Geol. Soc. India (2022) 98 (9): 1205–1209.
DOI: https://doi.org/10.1007/s12594-022-2153-4
... ; Le Maitre et al. 2002 ), Leucitites are volcanic rocks with abundant leucite phenocrysts ( Le Maitre et al. 2002 ), Aillikites are ultramafic lamprophyres with 10-50% carbonates ( Tappe et al. 2005 ), Silicocarbonatites are igneous rocks with >50% carbonates and >20% SiO 2 ( Tappe et...
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Bivariate diagrams of Al2O3 versus trace element concentrations for amphibole microcrysts cores, macrocrysts cores, and their rims in the Wajilitag aillikites from the Tarim large igneous province of NW China.

Bivariate diagrams of Al 2 O 3 versus trace element concentrations for amp... Available to Purchase

Published: 20 September 2023
Figure 6. Bivariate diagrams of Al 2 O 3 versus trace element concentrations for amphibole microcrysts cores, macrocrysts cores, and their rims in the Wajilitag aillikites from the Tarim large igneous province of NW China.
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Multilayer energy-dispersive spectral maps and BSE images for aillikites from the Bol’shaya Tagna intrusion (a–f), Bushkanai dike (g), and Yuzhnaya pipe (h–i). Ap – apatite, Cal – calcite, Chl – chlorite, Chr – chromite, Dol – dolomite, Grt – garnet, Mgt – magnetite, Phl – phlogopite, Rt – rutile, Px – clinopyroxene, Srp – serpentine. 1 – chromite, 2 – magnetite, 3 – perovskite, 4 – phlogopite, 5 – apatite, 6 – calcite, 7 – dolomite, 8 – andradite, 9 – sulphide.

Multilayer energy-dispersive spectral maps and BSE images for aillikites fr... Available to Purchase

Published: 01 November 2024
Fig. 3. Multilayer energy-dispersive spectral maps and BSE images for aillikites from the Bol’shaya Tagna intrusion ( a – f ), Bushkanai dike ( g ), and Yuzhnaya pipe ( h – i ). Ap – apatite, Cal – calcite, Chl – chlorite, Chr – chromite, Dol – dolomite, Grt – garnet, Mgt – magnetite, Phl
Journal Article

Tectonomagmatic events during stretching and basin formation in the Labrador Sea and the Davis Strait: evidence from age and composition of Mesozoic to Palaeogene dyke swarms in West Greenland Available to Purchase

LOTTE M. LARSEN, LARRY M. HEAMAN, ROBERT A. CREASER, ROBERT A. DUNCAN, ROBERT FREI, MARK HUTCHISON
Published: 01 December 2009
Journal of the Geological Society (2009) 166 (6): 999–1012.
DOI: https://doi.org/10.1144/0016-76492009-038
... and sometimes also as phenocrysts, but also high volatile contents; essentially ‘wet' alkali basalts), monchiquite (mafic, no plagioclase; glass or feldspathoid in groundmass), alnöite (ultramafic, carbonate-rich, with melilite), aillikite (ultramafic, carbonate-rich, no melilite), and carbonatite (more than 50...
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Backscattered electron scanning electron microscope image and elemental maps showing compositional zoning in a representative amphibole microcryst in the Wajilitag aillikites from the Tarim large igneous province of NW China. Amp—amphibole; Ap—apatite; Cal—calcite; Mag—magnetite; Phl—phlogopite.

Backscattered electron scanning electron microscope image and elemental map... Available to Purchase

Published: 20 September 2023
Figure 5. Backscattered electron scanning electron microscope image and elemental maps showing compositional zoning in a representative amphibole microcryst in the Wajilitag aillikites from the Tarim large igneous province of NW China. Amp—amphibole; Ap—apatite; Cal—calcite; Mag—magnetite; Phl