1-20 OF 110 RESULTS FOR

melilitolite

Results shown limited to content with bounding coordinates.
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article

Umbrianite, K 7 Na 2 Ca 2 [Al 3 Si 10 O 29 ]F 2 Cl 2 , a new mineral species from melilitolite of the Pian di Celle volcano, Umbria, Italy Available to Purchase

Victor V. Sharygin, Igor V. Pekov, Natalia V. Zubkova, Alexander P. Khomyakov, Francesco Stoppa, Dmitry Yu. Pushcharovsky
Published: 01 December 2013
European Journal of Mineralogy (2013) 25 (4): 655–669.
DOI: https://doi.org/10.1127/0935-1221/2013/0025-2306
...Victor V. Sharygin; Igor V. Pekov; Natalia V. Zubkova; Alexander P. Khomyakov; Francesco Stoppa; Dmitry Yu. Pushcharovsky Abstract The new mineral umbrianite, ideally K 7 Na 2 Ca 2 [Al 3 Si 10 O 29 ]F 2 Cl 2 , was discovered as an essential groundmass mineral in melilitolite of the Pian di Celle...
FIGURES | View All (11)
View PDF for article title, Umbrianite, K 7 Na 2 Ca 2 [Al 3 Si 10 O 29 ]F 2 Cl 2 , a new mineral species from <span class="search-highlight">melilitolite</span> of the Pian di Celle volcano, Umbria, Italy
Purchase
Add to Citation Manager for Umbrianite, K 7 Na 2 Ca 2 [Al 3 Si 10 O 29 ]F 2 Cl 2 , a new mineral species from <span class="search-highlight">melilitolite</span> of the Pian di Celle volcano, Umbria, Italy
Journal Article

Melilitolites; a new scheme of classification Available to Purchase

Elizabeth Ann Dunworth, Keith Bell
Published: 01 June 1998
The Canadian Mineralogist (1998) 36 (3): 895–903.
View PDF for article title, <span class="search-highlight">Melilitolites</span>; a new scheme of classification
Purchase
Add to Citation Manager for <span class="search-highlight">Melilitolites</span>; a new scheme of classification
Image
Pegmatoid vesicular melilitolite in venanzite lava flow.

Pegmatoid vesicular melilitolite in venanzite lava flow. Available to Purchase

Published: 01 December 2013
Fig. 2 Pegmatoid vesicular melilitolite in venanzite lava flow.
Image
Umbrianite in melilitolite (images in thin sections): Umb – umbrianite; Ks – kalsilite; Lc – leucite; Gl – silicate glass; Phl –fluorophlogopite; Mgt – Ti-rich magnetite; Ap – fluorapatite; Go – götzenite; Di – diopside; Ae – aegirine; Arf – arfvedsonite; H,M – Ba-rich hydrated phases; Bar – partially altered bartonite; Mg – Mg-H2O-rich silicate; CF – hydrated Ca-Fe-silicate; Cc – calcite-fluorite globule; map – see Fig 8.

Umbrianite in melilitolite (images in thin sections): Umb – umbrianite; Ks ... Available to Purchase

Published: 01 December 2013
Fig. 3 Umbrianite in melilitolite (images in thin sections): Umb – umbrianite; Ks – kalsilite; Lc – leucite; Gl – silicate glass; Phl –fluorophlogopite; Mgt – Ti-rich magnetite; Ap – fluorapatite; Go – götzenite; Di – diopside; Ae – aegirine; Arf – arfvedsonite; H,M – Ba-rich hydrated phases; Bar
Image
Magnetite compositions from the Turiy rocks. Note that the melilitolite, pyroxenite and turjite magnetite analyses have higher Al contents than the rest of the samples. Most of the olivine melteigite data is off scale, due to the presence of a significant spinel component in the analyses. Fe2+# = 100(Fe2+/(Fe2++Mg)).

Magnetite compositions from the Turiy rocks. Note that the melilitolite, py... Available to Purchase

Published: 01 June 2003
F ig . 7. Magnetite compositions from the Turiy rocks. Note that the melilitolite, pyroxenite and turjite magnetite analyses have higher Al contents than the rest of the samples. Most of the olivine melteigite data is off scale, due to the presence of a significant spinel component
Image
Scheme of the Krestovskii Massif geologic structure (compiled by A. M. Sazonov and M. Ya. Bekhter). 1 – recent alluvial deposits; 2 – undifferentiated Quaternary deposits; 3 – Tyvankit Formation, melanephelites; 4 – clastolavas of melanephelites; 5, 6 – dikes: 5 – alkaline microsyenites, 6 – trachybasalts, trachydolerites, plagioclase porphyrites and picrites; 7 – enclosed dikes (microsyenites, trachybasalts, trachydolerites, alkaline picrites); 8 – Maimecha-Kotui complex (EMJ2mk?) – melilitolites; 9 – Guli complex (σT1–2g) – olivinites, wehrlites, and pyroxenites; 10 – monticellitollites; 11 – isograds (a – perovskite, b – sphene); 12 – hornblendes (a – fine-grained pyroxene, b – blastoporphyry pyroxene); 13 – biotized melanephelinites; 14 – injection melilitolite-ultramafic rocks, skarnized and recrystallized rocks of the contact zone of melilitolite bodies; 15 – supposed faults; 16 – geologic boundaries.

Scheme of the Krestovskii Massif geologic structure (compiled by A. M. Sazo... Available to Purchase

Published: 01 September 2001
microsyenites, 6 – trachybasalts, trachydolerites, plagioclase porphyrites and picrites; 7 – enclosed dikes (microsyenites, trachybasalts, trachydolerites, alkaline picrites); 8 – Maimecha-Kotui complex (EMJ 2 mk?) – melilitolites; 9 – Guli complex ( σ T 1–2 g) – olivinites, wehrlites, and pyroxenites
Journal Article

The Turiy Massif, Kola Peninsula, Russia: mineral chemistry of an ultramafic-alkaline-carbonatite intrusion Available to Purchase

E. A. Dunworth, K. Bell
Published: 01 June 2003
Mineralogical Magazine (2003) 67 (3): 423–451.
DOI: https://doi.org/10.1180/0026461036730109
...F ig . 7. Magnetite compositions from the Turiy rocks. Note that the melilitolite, pyroxenite and turjite magnetite analyses have higher Al contents than the rest of the samples. Most of the olivine melteigite data is off scale, due to the presence of a significant spinel component...
FIGURES | View All (10)
View PDF for article title, The Turiy Massif, Kola Peninsula, Russia: mineral chemistry of an ultramafic-alkaline-carbonatite intrusion
Purchase
Add to Citation Manager for The Turiy Massif, Kola Peninsula, Russia: mineral chemistry of an ultramafic-alkaline-carbonatite intrusion
Journal Article

PARAGENETIC TYPES OF CARBONATITE AS INDICATED BY THE DIVERSITY AND RELATIVE ABUNDANCES OF ASSOCIATED SILICATE ROCKS: EVIDENCE FROM A GLOBAL DATABASE Available to Purchase

Alan R. Woolley, Bruce A. Kjarsgaard
Published: 01 August 2008
The Canadian Mineralogist (2008) 46 (4): 741–752.
DOI: https://doi.org/10.3749/canmin.46.4.741
... associations with silicate rocks. These are (in decreasing order of abundance): 1) nephelinite–ijolite, 2) phonolite – feldspathoidal syenite, 3) trachyte–syenite, 4) melilitite–melilitolite, 5) lamprophyre, 6) kimberlite, 7) basanite – alkali gabbro. A significant proportion of the nephelinite–ijolite...
FIGURES | View All (5)
View PDF for article title, PARAGENETIC TYPES OF CARBONATITE AS INDICATED BY THE DIVERSITY AND RELATIVE ABUNDANCES OF ASSOCIATED SILICATE ROCKS: EVIDENCE FROM A GLOBAL DATABASE
Purchase
Add to Citation Manager for PARAGENETIC TYPES OF CARBONATITE AS INDICATED BY THE DIVERSITY AND RELATIVE ABUNDANCES OF ASSOCIATED SILICATE ROCKS: EVIDENCE FROM A GLOBAL DATABASE
Journal Article

Origin of the Sung Valley Carbonatite Complex, Meghalaya, India: Major Element Geochemistry Constraints Available to Purchase

Amit Kumar Sen
Published: 01 March 1999
Jour. Geol. Soc. India (1999) 53 (3): 285–297.
DOI: https://doi.org/10.17491/jgsi/1999/530302
...Amit Kumar Sen Abstract The Sung Valley carbonatite complex is situated in the Shillong Plateau, Meghalaya and includes an array of silicate rocks along with sovitic carbonatite. The silicate rocks are represented by serpentinized peridotite, pyroxenite, melilitolite, ijolite and nepheline syenite...
View PDF for article title, Origin of the Sung Valley Carbonatite Complex, Meghalaya, India: Major Element Geochemistry Constraints
Purchase
Add to Citation Manager for Origin of the Sung Valley Carbonatite Complex, Meghalaya, India: Major Element Geochemistry Constraints
Image
Back-scattered electron image of a coarse crystal of umbrianite (Umb) on kalsilite (Ks) in a vug of melilitolite.

Back-scattered electron image of a coarse crystal of umbrianite (Umb) on ka... Available to Purchase

Published: 01 December 2013
Fig. 4 Back-scattered electron image of a coarse crystal of umbrianite (Umb) on kalsilite (Ks) in a vug of melilitolite.
Journal Article

Commenton: Reported data and interpretation of some wollastonite- and melilite-bearing rocks from the Central Apennines of Italy Available to Purchase

Francesco Stoppa, Gianluigi Rosatelli, Aldo Cundari, Francesca Castorina, Alan R. Woolley
Published: 01 November 2005
American Mineralogist (2005) 90 (11-12): 1919–1925.
DOI: https://doi.org/10.2138/am.2005.398
... ). The latter appears to have been dragged, deformed, brecciated, and intruded by the main melilitolite body (Fig. 3B ). Sharp contacts were observed between the two subvolcanic rocks. F igure 3. Photographs showing details of the Colle Fabbri outcrop. ( A ) Palaesoil at contact between the lower...
FIGURES | View All (8)
View PDF for article title, Commenton: Reported data and interpretation of some wollastonite- and melilite-bearing rocks from the Central Apennines of Italy
Purchase
Add to Citation Manager for Commenton: Reported data and interpretation of some wollastonite- and melilite-bearing rocks from the Central Apennines of Italy
Image
Geological map of the Sung Valley ultramafic–alkaline–carbonatite complex (Srivatava et al., 2005 after Krishnamurthy, 1985). Nepheline syenite and melilitolites dykes exposed around the villages Sung and Maskut are very small, hence not indicated in the map.

Geological map of the Sung Valley ultramafic–alkaline–carbonatite complex (... Available to Purchase

Published: 01 August 2019
Fig. 1.12. Geological map of the Sung Valley ultramafic–alkaline–carbonatite complex (Srivatava et al., 2005 after Krishnamurthy, 1985 ). Nepheline syenite and melilitolites dykes exposed around the villages Sung and Maskut are very small, hence not indicated in the map.
Image
Geological map of the Sung Valley ultramafic-alkaline – carbonatite complex (modified after Srivastava et al. 2005). Nepheline syenite and melilitolite dykes exposed around the villages Sung and Maskut are very small, hence not reported on the map.

Geological map of the Sung Valley ultramafic-alkaline – carbonatite complex... Available to Purchase

Published: 01 February 2010
F ig . 1. Geological map of the Sung Valley ultramafic-alkaline – carbonatite complex (modified after Srivastava et al. 2005 ). Nepheline syenite and melilitolite dykes exposed around the villages Sung and Maskut are very small, hence not reported on the map.
Journal Article

MELILITE- AND MONTICELLITE-BEARING ROCKS OF THE KRESTOVSKAYA INTRUSION ( northern Siberian Platform ) AND THEIR GENESIS Available to Purchase

L. I. Panina, A. M. Sazonov, L. M. Usol’tseva
Published: 01 September 2001
Russ. Geol. Geophys. (2001) 42 (9): 1243–1263.
... microsyenites, 6 – trachybasalts, trachydolerites, plagioclase porphyrites and picrites; 7 – enclosed dikes (microsyenites, trachybasalts, trachydolerites, alkaline picrites); 8 – Maimecha-Kotui complex (EMJ 2 mk?) – melilitolites; 9 – Guli complex ( σ T 1–2 g) – olivinites, wehrlites, and pyroxenites...
FIGURES
View PDF for article title, MELILITE- AND MONTICELLITE-BEARING ROCKS OF THE KRESTOVSKAYA INTRUSION ( northern Siberian Platform ) AND THEIR GENESIS
Purchase
Add to Citation Manager for MELILITE- AND MONTICELLITE-BEARING ROCKS OF THE KRESTOVSKAYA INTRUSION ( northern Siberian Platform ) AND THEIR GENESIS
Image
Photographs showing details of the Colle Fabbri outcrop. (A) Palaesoil at contact between the lower breccia and Pleistocene conglomerates. (B) Upper breccia dredged up by the melilitolite intrusion (at right in the photograph). (C) Melilitite dikelet intruding the upper breccia. (D) Contact breccia.

Photographs showing details of the Colle Fabbri outcrop. ( A ) Palaesoil at... Available to Purchase

Published: 01 November 2005
F igure 3. Photographs showing details of the Colle Fabbri outcrop. ( A ) Palaesoil at contact between the lower breccia and Pleistocene conglomerates. ( B ) Upper breccia dredged up by the melilitolite intrusion (at right in the photograph). ( C ) Melilitite dikelet intruding the upper breccia
Journal Article

U–Pb geochronology of calcite carbonatites and jacupirangite from the Guli alkaline complex, Polar Siberia, Russia Available to Purchase

Ekaterina P. Reguir, Ekaterina B. Salnikova, Panseok Yang, Anton R. Chakhmouradian, Maria V. Stifeeva, Irina T. Rass, Aleksandr B. Kotov
Published: 09 June 2021
Mineralogical Magazine (2021) 85 (4): 469–483.
DOI: https://doi.org/10.1180/mgm.2021.53
... Ma. This interpretation is supported by reports of pre-flood magmatism elsewhere in eastern Siberia. Andradite crystals from the contact between the Southern stock and metasomatised melilitolite were analysed by ID-TIMS. These measurements are inconclusive (247 ± 6 Ma) and could not be used...
FIGURES | View All (8)
View PDF for article title, U–Pb geochronology of calcite carbonatites and jacupirangite from the Guli alkaline complex, Polar Siberia, Russia
Purchase
Add to Citation Manager for U–Pb geochronology of calcite carbonatites and jacupirangite from the Guli alkaline complex, Polar Siberia, Russia
Journal Article

Chemical and structural study of the Zr,Ti-disilicates in the venanzite from Pian di Celle, Umbria, Italy Available to Purchase

Marco BELLEZZA, Stefano MERLINO, Natale PERCHIAZZI
Published: 01 November 2004
European Journal of Mineralogy (2004) 16 (6): 957–969.
DOI: https://doi.org/10.1127/0935-1221/2004/0016-0957
... mineralogical study of both the constituent and accessory phases of the pegmatitoid facies is due to Stoppa et al . (1997) , who report a modal composition for the rock, classifying it as a calcite leucite melilitolite. Sampling errors can seriously affect optical mode results, in the case of coarse-grained...
FIGURES | View All (5)
View PDF for article title, Chemical and structural study of the Zr,Ti-disilicates in the venanzite from Pian di Celle, Umbria, Italy
Purchase
Add to Citation Manager for Chemical and structural study of the Zr,Ti-disilicates in the venanzite from Pian di Celle, Umbria, Italy
Journal Article

DJERFISHERITE IN THE GULI DUNITE COMPLEX, POLAR SIBERIA: A PRIMARY OR METASOMATIC PHASE? Available to Purchase

Federica Zaccarini, Oskar A.R. Thalhammer, Francesco Princivalle, Davide Lenaz, Chris J. Stanley, Giorgio Garuti
Published: 01 October 2007
The Canadian Mineralogist (2007) 45 (5): 1201–1211.
DOI: https://doi.org/10.2113/gscanmin.45.5.1201
..., including melilitolite, ijolite, alkaline syenite and carbonatite, occupy less than 10% of the area. The sample with the most abundant djerfisherite is a coarse-grained phlogopite–magnetite-rich clinopyroxenite. Djerfisherite most commonly occurs in irregular patches of sulfide composed mainly of pyrrhotite...
FIGURES | View All (5)
View PDF for article title, DJERFISHERITE IN THE GULI DUNITE COMPLEX, POLAR SIBERIA: A PRIMARY OR METASOMATIC PHASE?
Purchase
Add to Citation Manager for DJERFISHERITE IN THE GULI DUNITE COMPLEX, POLAR SIBERIA: A PRIMARY OR METASOMATIC PHASE?
Journal Article

Extreme closed system fractionation of volatile-rich, ultrabasic peralkaline melt inclusions and the occurrence of djerfisherite in the Kugda alkaline complex, Siberia Available to Purchase

C. M. B. Henderson, L. N. Kogarko, D. A. Plant
Published: 01 June 1999
Mineralogical Magazine (1999) 63 (3): 433–438.
...C. M. B. Henderson; L. N. Kogarko; D. A. Plant Abstract Djerfisherite [K 6 (Cu,Fe,Ni) 25 S 26 Cl] has been found as a daughter mineral in melt inclusions in melilite from a Kugda melilitolite. The inclusion mineral assemblage includes pyrrhotite, pentlandite, forsterite, diopside, monticellite...
View PDF for article title, Extreme closed system fractionation of volatile-rich, ultrabasic peralkaline melt inclusions and the occurrence of djerfisherite in the Kugda alkaline complex, Siberia
Purchase
Add to Citation Manager for Extreme closed system fractionation of volatile-rich, ultrabasic peralkaline melt inclusions and the occurrence of djerfisherite in the Kugda alkaline complex, Siberia
Image
Perovskite compositions from the Turiy rocks, showing the amount of loparite (NaREETi2O6) component present. The northern-complex melilite-carbonatite perovskites are additionally enriched in REE. Most melilitolite perovskite analyses contain [La + Ce] &gt; Na, while the ijolite perovskite analyses contain Na &lt; [La + Ce].

Perovskite compositions from the Turiy rocks, showing the amount of loparit... Available to Purchase

Published: 01 June 2003
F ig . 8. Perovskite compositions from the Turiy rocks, showing the amount of loparite (Na REE Ti 2 O 6 ) component present. The northern-complex melilite-carbonatite perovskites are additionally enriched in REE. Most melilitolite perovskite analyses contain [La + Ce] > Na, while