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picrodolerite

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Journal Article

Age of picrite and picrodolerite magmatism in western Mongolia Available to Purchase

A.E. Izokh, A.V. Vishnevskii, G.V. Polyakov, R.A. Shelepaev
Published: 01 January 2011
Russ. Geol. Geophys. (2011) 52 (1): 7–23.
DOI: https://doi.org/10.1016/j.rgg.2010.12.002
...A.E. Izokh; A.V. Vishnevskii; G.V. Polyakov; R.A. Shelepaev Abstract The paper presents 39 Ar/ 40 Ar and UPb (SHRIMP zircon method) geochronological data on minor picrodolerite intrusions from western Mongolia. Picrodolerite magmatism in western Mongolia took place within different age intervals...
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View PDF for article title, Age of picrite and <span class="search-highlight">picrodolerite</span> magmatism in western Mongolia
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Journal Article

Petrology of Picrodolerites from the Dedan Cluster, Gujarat Available to Purchase

T. Krishnamacharlu
Published: 01 September 1972
Jour. Geol. Soc. India (1972) 13 (3): 262–272.
DOI: https://doi.org/10.17491/jgsi/1972/130305
... 1972 Geological Society of India JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA Vol. 13, No.3, 1972, pp. 262 to 272 PETROLOGY OF PICRODOLERITES FROM THE DEDAN CLUSTER, GUJARAT T. KRISHNAMACHARLU Centre of Advanced Study in Geology, University of Saugar, Sagar (Communicated by T. V. V. G. R. K. Murty...
View PDF for article title, Petrology of <span class="search-highlight">Picrodolerites</span> from the Dedan Cluster, Gujarat
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Globular ores. (A) Large sulfide globules in taxitic picrodolerite (PGD). (B) Phase map of PGD (from synchrotron X-ray fluorescence microscopy [XFM] image) showing sulfides (sulf) and silicate cap within void in olivine framework. (C) Upper taxite, segregation vesicles, and sulfides within Cr-spinel mat (Cr-Fe-Ti XFM map). (D) Picrodolerite with skeletal olivine (green) and segregation vesicles (Cr-Fe-Ca XFM map). Minerals: amyg—amygdule, ap—apatite; Ccp—chalcopyrite; cpx—clinopyroxene; hb/h’blende—hornblende; Ol/olv—olivine; plag/plg—plagioclase; Pn—pentlandite; Po—pyrrhotite.

Globular ores. (A) Large sulfide globules in taxitic picrodolerite (PGD). (... Open Access

Published: 17 August 2023
Figure 3. Globular ores. (A) Large sulfide globules in taxitic picrodolerite (PGD). (B) Phase map of PGD (from synchrotron X-ray fluorescence microscopy [XFM] image) showing sulfides (sulf) and silicate cap within void in olivine framework. (C) Upper taxite, segregation vesicles, and sulfides
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Concentrations of chalcogenes, PGEs, Ag, and Au in sulfide minerals from picrodolerite and studied troctolites. The data of the LA-ICP-MS analyses for the DV30-1 picrodolerite (1) (Ariskin et al., 2018c) and troctolites with disseminated (07DV403-1, D8/15, D12/15, 13DV554-1-3, and -12) (2) and pegmatoid (13DV551-4) (3) sulfides.

Concentrations of chalcogenes, PGEs, Ag, and Au in sulfide minerals from pi... Available to Purchase

Published: 01 May 2020
Fig. 10. Concentrations of chalcogenes, PGEs, Ag, and Au in sulfide minerals from picrodolerite and studied troctolites. The data of the LA-ICP-MS analyses for the DV30-1 picrodolerite (1) ( Ariskin et al., 2018c ) and troctolites with disseminated (07DV403-1, D8/15, D12/15, 13DV554-1-3, and -12
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Microtexture of ore phenocryst in picrodolerite (sample KCh 7/584) (a) and of ore nest in olivine dolerite (sample KCh 7/580) (b). For explanations, see the text.

Microtexture of ore phenocryst in picrodolerite (sample KCh 7/584) ( a ) an... Available to Purchase

Published: 01 January 2014
Fig. 7. Microtexture of ore phenocryst in picrodolerite (sample KCh 7/584) ( a ) and of ore nest in olivine dolerite (sample KCh 7/580) ( b ). For explanations, see the text.
Image
Picrodolerite intrusions on the tectonic sketch map of western Mongolia (Tomurtogoo, 2002). 1–6, terranes: 1, ophiolite; 2, accretionary; 3, flysch; 4, island-arc; 5, volcanic; 6, of active continental margins; 7, major faults; 8, manifestations of mafic magmatism. Picrodolerite areas and intrusions: 1, intrusions of the Tsagaan Shuvuut Range; 2, Mor’t Uula; 3, Tavtyn Hundiyn; 4, Altan Gadas; 5, Javhlant; 6, Yaryn Had; 7, Dzahuy; 8, Dzaraa Uula; 9, Hu Tsan Bulak; 10, Bomin Hara Uula. MML, Main Mongolian Lineament.

Picrodolerite intrusions on the tectonic sketch map of western Mongolia ( T... Available to Purchase

Published: 01 January 2011
Fig. 1. Picrodolerite intrusions on the tectonic sketch map of western Mongolia ( Tomurtogoo, 2002 ). 1–6 , terranes: 1 , ophiolite; 2 , accretionary; 3 , flysch; 4 , island-arc; 5 , volcanic; 6 , of active continental margins; 7 , major faults; 8 , manifestations of mafic magmatism
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Petrography and geochemistry of picrodolerite intrusions in western Mongolia. a, TAS diagram (Bogatikov et al., 2009); b, diagram of K–Na series (Le Bas, 2000); c, Al2O3–MgO; d, TiO2–P2O5. Oxide content is recalculated in terms of the dry residue. Intrusions: 1, Shara Hadny; 2, Mor’t Uula; 3, Tavtyn Hundiyn; 4, Altan Gadas; 5, Javhlant; 6, Yaryn Had; 7, Dzahuy; 8, Dzaraa Uula.

Petrography and geochemistry of picrodolerite intrusions in western Mongoli... Available to Purchase

Published: 01 January 2011
Fig. 2. Petrography and geochemistry of picrodolerite intrusions in western Mongolia. a , TAS diagram ( Bogatikov et al., 2009 ); b , diagram of K–Na series ( Le Bas, 2000 ); c , Al 2 O 3 –MgO; d , TiO 2 –P 2 O 5 . Oxide content is recalculated in terms of the dry residue. Intrusions: 1
Journal Article

Phase equilibria testing of a multiple pulse mechanism for origin of mafic–ultramafic intrusions: a case example of the Shiant Isles Main Sill, NW Scotland Available to Purchase

RAIS LATYPOV, SOFYA CHISTYAKOVA
Published: 27 May 2009
Geological Magazine (2009) 146 (6): 851–875.
DOI: https://doi.org/10.1017/S0016756809006499
.... As a case study we used the Shiant Isles Main Sill that is widely regarded as a classical example of a multiple, picrite–picrodolerite–crinanite alkaline sill. This sill is currently interpreted as having been formed by several olivine phenocryst-rich pulses of magma, which were successively emplaced...
View PDF for article title, Phase equilibria testing of a multiple pulse mechanism for origin of mafic–ultramafic intrusions: a case example of the Shiant Isles Main Sill, NW Scotland
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U–Pb isotopic dating of a sample of zircon grains. a, Tsagaan Shuvuut Range (sample I34-07, picrodolerite); b, Altan Gadas (sample A6-07, picrodolerite); c, Javhlant (sample A53-07, melanogabbro); d, Yaryn Had (sample A28-07, gabbronorite); e, Dzaraa Uula (sample A65-07, monzogabbro). Transmitted-light photographs of grains and their cathodoluminescence images are shown. Circles indicate the points where the U–Pb isotopic ratios were measured, and next to them there are grain and point numbers. See the values in Table 3.

U–Pb isotopic dating of a sample of zircon grains. a , Tsagaan Shuvuut Ran... Available to Purchase

Published: 01 January 2011
U–Pb isotopic dating of a sample of zircon grains. a , Tsagaan Shuvuut Range (sample I34-07, picrodolerite); b , Altan Gadas (sample A6-07, picrodolerite); c , Javhlant (sample A53-07, melanogabbro); d , Yaryn Had (sample A28-07, gabbronorite); e , Dzaraa Uula (sample A65-07, monzogabbro
Journal Article

The olivines of the Garbh Eilean sill, Shiant isles Free

R. Johnston
Published: 01 May 1953
Geological Magazine (1953) 90 (3): 161–171.
...R. Johnston Abstract The investigation of the olivines in the picrite, picrodolerite, and crinanite of the Garbh Eilean sill is part of a research program on the geochemistry and petrology of the rocks of the Shiant isles, situated 20 miles off the west coast of Scotland. Optical and chemical work...
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Journal Article

Mineral fractionation and pre- and post-emplacement processes in the uppermost part of the Shiant Isles Main Sill Available to Purchase

C. M. B. Henderson, F. G. F. Gibb, K. A. Foland
Published: 01 October 2000
Mineralogical Magazine (2000) 64 (5): 779–790.
... of the picrodolerite/crinanite unit. Many analyses are omitted to preserve clarity but the extremes of zoning are shown for each rock. Note that the plagioclase trend for GOPd SC1060 is substantially more Or-rich than those for the other GOPds and that the trend for crinanite SC1081 is slightly more potassic than...
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Concentrations of chalcogenes, PGEs, and silver versus rhodium in pentlandite from picrodolerite and the troctolites studied. See denotations in Fig. 9. The data of LA-ICP-MS analyses are from Table 6. The span of the colored lines corresponds to standard deviations (1σ).

Concentrations of chalcogenes, PGEs, and silver versus rhodium in pentlandi... Available to Purchase

Published: 01 May 2020
Fig. 11. Concentrations of chalcogenes, PGEs, and silver versus rhodium in pentlandite from picrodolerite and the troctolites studied. See denotations in Fig. 9 . The data of LA-ICP-MS analyses are from Table 6 . The span of the colored lines corresponds to standard deviations (1σ).
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Mantle- (a) and DV30-1-normalized (b) spidergrams of picrodolerites and plagioperidotites. The contents of precious metals, Cu, and Ni are given in Tables 1 and 2, and the mantle composition was borrowed from Barnes and Maier (1999). Designations follow Figs. 4 and 7.

Mantle- ( a ) and DV30-1-normalized ( b ) spidergrams of picrodolerites and... Available to Purchase

Published: 01 May 2018
Fig. 8. Mantle- ( a ) and DV30-1-normalized ( b ) spidergrams of picrodolerites and plagioperidotites. The contents of precious metals, Cu, and Ni are given in Tables 1 and 2 , and the mantle composition was borrowed from Barnes and Maier (1999) . Designations follow Figs. 4 and 7 .
Journal Article

Geochemical evidence for the fractionation of iridium group elements at the early stages of crystallization of the Dovyren magmas (northern Baikal area, Russia) Available to Purchase

A.A. Ariskin, G.S. Nikolaev, L.V. Danyushevsky, M. Fiorentini, E.V. Kislov, I.V. Pshenitsyn
Published: 01 May 2018
Russ. Geol. Geophys. (2018) 59 (5): 459–471.
DOI: https://doi.org/10.1016/j.rgg.2018.04.001
...Fig. 8. Mantle- ( a ) and DV30-1-normalized ( b ) spidergrams of picrodolerites and plagioperidotites. The contents of precious metals, Cu, and Ni are given in Tables 1 and 2 , and the mantle composition was borrowed from Barnes and Maier (1999) . Designations follow Figs. 4 and 7 . ...
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View PDF for article title, Geochemical evidence for the fractionation of iridium group elements at the early stages of crystallization of the Dovyren magmas (northern Baikal area, Russia)
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REE pattern in rocks of the Late Permian picrite-andesite-basalt complex in the Nam So region. 1 – picrite, 2 – picrodolerite, 3 – melanobasalt, 4, 5 – diabases, 6 – tuffiava breccia of basic composition, 7 – basalt (all samples are from the Nam So region).

REE pattern in rocks of the Late Permian picrite-andesite-basalt complex in... Available to Purchase

Published: 01 June 1998
Fig. 3. REE pattern in rocks of the Late Permian picrite-andesite-basalt complex in the Nam So region. 1 – picrite, 2 – picrodolerite, 3 – melanobasalt, 4, 5 – diabases, 6 – tuffiava breccia of basic composition, 7 – basalt (all samples are from the Nam So region).
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Distribution of trace and rare-earth elements in the rocks of the Cao Bang massifs. a — Lherzolites, wehrlites, and picrites; b — picrodolerites, olivine melanogabbronorites, and ophite gabbronorites; c — gabbronorites, dolerites, kongadiabases, and granophyres. The contents of elements are normalized to the primitive-mantle composition [25]. Initial data are given in Table 1.

Distribution of trace and rare-earth elements in the rocks of the Cao Bang ... Available to Purchase

Published: 01 July 2006
Fig. 3. Distribution of trace and rare-earth elements in the rocks of the Cao Bang massifs. a — Lherzolites, wehrlites, and picrites; b — picrodolerites, olivine melanogabbronorites, and ophite gabbronorites; c — gabbronorites, dolerites, kongadiabases, and granophyres. The contents
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Indicators of volatile interactions at Norilsk-Talnakh. 1. Cuprous ore skarn breccia in Tunguska Fm footwall, Skalitsky Mine, Talnakh. B, XRF map of globular sulfide ore in “picrodolerite”, sulfide globule in sub-spherical void in cumulus olivine framework. C, massive ore with bladed anhydrite and coal inclusions. D, XRF map, low-S PGE ore, sulfide inside spinel-lined amygdule [8].

Indicators of volatile interactions at Norilsk-Talnakh. 1. Cuprous ore skar... Available to Purchase

Published: 28 December 2023
Fig. 1. Indicators of volatile interactions at Norilsk-Talnakh. 1. Cuprous ore skarn breccia in Tunguska Fm footwall, Skalitsky Mine, Talnakh. B, XRF map of globular sulfide ore in “picrodolerite”, sulfide globule in sub-spherical void in cumulus olivine framework. C, massive ore with bladed
Journal Article

Mean grain diameters from thin sections: matching the average to the problem Open Access

Robert S. Farr, Victoria C. Honour, Marian B. Holness
Published: 01 June 2017
Mineralogical Magazine (2017) 81 (3): 515–530.
DOI: https://doi.org/10.1180/minmag.2016.080.107
... of average particle diameter is illustrated firstly with a consideration of the accumulation of olivine phenocrysts on the floor of the 135 m thick picrodolerite/crinanite unit of the Shiant Isles Main Sill. We show that the 45 m thick crystal pile on the sill floor could have formed by crystal settling...
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Chondrite-normalized (CI) (Boynton, 1984) and primitive mantle-normalized (McDonough and Sun, 1995) REE patterns and spidergrams for the picrodolerite intrusions of western Mongolia. a, Shara Hadny, Mor’t Uula; b, Tavtyn Hundiyn, Altan Gadas; c, Javhlant, Yaryn Had, Dzahuy; d, Dzaraa Uula. For legend see Fig. 2.

Chondrite-normalized (CI) ( Boynton, 1984 ) and primitive mantle-normalized... Available to Purchase

Published: 01 January 2011
Fig. 3. Chondrite-normalized (CI) ( Boynton, 1984 ) and primitive mantle-normalized ( McDonough and Sun, 1995 ) REE patterns and spidergrams for the picrodolerite intrusions of western Mongolia. a , Shara Hadny, Mor’t Uula; b , Tavtyn Hundiyn, Altan Gadas; c , Javhlant, Yaryn Had, Dzahuy; d
Journal Article

CONDITIONS OF FORMATION OF THE LATE PERMIAN CAO BANG PGE-Cu-Ni-BEARING LHERZOLITE-GABBRONORITE-DOLERITE COMPLEX ( northeastern Vietnam ) Available to Purchase

P.A. Balykin, G.V. Polyakov, Tran Trong Hoa, A.V. Lavrenchuk, A.E. Izokh, Ngo Thi Phuong, A.I. Glotov, Hoang Huu Thanh, T.E. Petrova, E.A. Vasyukova
Published: 01 July 2006
Russ. Geol. Geophys. (2006) 47 (7): 825–837.
...Fig. 3. Distribution of trace and rare-earth elements in the rocks of the Cao Bang massifs. a — Lherzolites, wehrlites, and picrites; b — picrodolerites, olivine melanogabbronorites, and ophite gabbronorites; c — gabbronorites, dolerites, kongadiabases, and granophyres. The contents...
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View PDF for article title, CONDITIONS OF FORMATION OF THE LATE PERMIAN CAO BANG PGE-Cu-Ni-BEARING LHERZOLITE-GABBRONORITE-DOLERITE COMPLEX ( northeastern Vietnam )
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