The low-pressure partial-melting behaviour of natural boron-bearing metapelites from the Mt. Stafford area, central Australia

Spicer, Esmé M.; Stevens, Gary; Buick, Ian S.

doi:10.1007/s00410-004-0577-z

Cited by 48 publications

(19 citation statements)

References 64 publications

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“…A slightly lower crystallization temperature of tourmalinebearing granite relative to MBG (zircon and monazite saturation thermometry: c. 640-700 °C) is in agreement. Such temperatures are consistent with lower solidus temperatures of fluid-saturated B-rich granitic melts (Pichavant 1981;Pichavant and Manning 1984;Spicer et al 2004).…”

Section: P-t Conditions Of Crystallizationsupporting

confidence: 80%

“…The important factors controlling tourmaline stability in granitic melts at 700-750 °C are sufficiently high contents of B (more than 2 wt. % B 2 O 3 ), Fe and/or Mg, along with high Al (A/CNK > 1.2) (Benard et al 1985;London and Manning 1995;Scaillet et al 1995;Wolf and London 1997;Spicer et al 2004;London 2011). Still, high Fe 3+ content may stabilize tourmaline in alkaline conditions .…”

Section: Evolution Of Granitic Melts and Saturation Of Tourmalinementioning

confidence: 99%

“…1 -H 2 O-and Al-saturated granite solidus (Tuttle and Bowen 1958); 2 -range between wet granite solidus and wet granite solidus where B 2 O 3 concentration in the melt is buffered by equilibria involving tourmaline; 3 -maximum shift of the haplogranitic wet solidus resulting from the addition of up to 17 wt. % B 2 O 3 (Spicer et al 2004). The grey field covers the area of the estimated P-T conditions defined by isochores of P and PS fluid inclusions hosted by both quartz and tourmaline.…”

Section: Nature and Origin Of The Fluid Phase Hosted By Fluid Inclusionsmentioning

confidence: 99%

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Textural and compositional evidence for a polyphase saturation of tourmaline in granitic rocks from the Třebíč Pluton (Bohemian Massif)

Buriánek¹,

Dolníček²,

Novák³

2016

J. Geosci.

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Crystallization of granite melts produced several textural types of granites and pegmatites in the Třebíč Pluton: dykes of volumetrically dominant muscovite-biotite granite (MBG) locally containing tourmaline nodules with leucocratic halos, minor oval pods to dykes of tourmaline granite and veins of tourmaline pegmatite, both enclosed in the MBG. An aplitic zone with comb textures, locally developed in MBG along the contact with surrounding durbachites, suggests high degree of undercooling. Evidence for polyphase saturation of tourmaline was observed within MBG and related granitic rocks including the following textural and compositional types of tourmaline: (i) nodules surrounded by leucocratic halos; (ii) euhedral to subhedral grains randomly distributed within tourmaline granite and tourmaline-quartz accumulations with leucocratic halos in the marginal part of granite dykes; (iii) rare columnar crystals of black tourmaline occurring locally in central parts of pegmatite; (iv) dravite-rich rims and late dravite veinlets in tourmaline grains from nodules, suggesting crystallization from hydrothermal fluids in the system open to host rocks as supported also by fluid inclusions study.

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Section: P-t Conditions Of Crystallizationsupporting

confidence: 80%

Section: Evolution Of Granitic Melts and Saturation Of Tourmalinementioning

confidence: 99%

Section: Nature and Origin Of The Fluid Phase Hosted By Fluid Inclusionsmentioning

confidence: 99%

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Textural and compositional evidence for a polyphase saturation of tourmaline in granitic rocks from the Třebíč Pluton (Bohemian Massif)

Buriánek¹,

Dolníček²,

Novák³

2016

J. Geosci.

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“…As granitic melts have a high solubility of B, partial melting of typical siliciclastic sedimentary rocks is likely to result in melts that are undersaturated in B, which destabilizes tourmaline (e.g., Wolf and London, 1997;London, 1999). Experimental studies have shown that tourmaline may coexist with melts at relatively low pressures (c. 3 kbar) up to relatively high temperatures (<850°C) for tourmaline-rich two-mica metapelitic protoliths (Spicer et al, 2004). As the solubility of B in melts seems to increase dramatically with temperature (e.g., Spicer et al, 2004), significant overstepping of the solidus temperature destabilizes tourmaline in the protolith.…”

Section: Role Of Fractionation and Magma Evolutionmentioning

confidence: 98%

Lithium and boron in late-orogenic granites – Isotopic fingerprints for the source of crustal melts?

Romer

Meixner

Förster

2014

Geochimica et Cosmochimica Acta

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“…It shows that aluminum, silica, calcium, and magnesium were the major components; the concentrations are larger than 1 mg/g. According to tourmaline ternary phase diagrams (Spicer, 2004), most of the tourmaline was composed of Al, Fe, Mg and others. Different structures of tourmaline will be produced by different proportions of elements.…”

Section: Characteristic Of Aceraliven ™mentioning

confidence: 99%

The characterization of tourmaline and its effects on plant growth

Huang

Yu²,

Liu³

et al. 2017

SJES

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Abstract. The purpose of this study was to investigate the characteristics of ACERALIVEN ™ , a commercial tourmaline, and to test its effect on plant growth. According to our analysis, ACERALIVEN ™ belongs to the Si-Al-Mg tourmaline structure. It contains some trace metals such as zirconium, potassium, and iron and able to emit far-infrared energy in the emissivity of 0.829. Introducing the tourmaline into water changes the water to be more alkaline. Tourmaline also releases negative hydroxyl ions and dissolved oxygen creating what is called as hydrogen water. Mung beans submerged with ACERALIVEN ™ shows a longer lifetime than without submerging the tourmaline. Additionally, the tourmaline can promote plant growth by removing chlorine and releasing far-infrared which is beneficial for plant's metabolism.

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The low-pressure partial-melting behaviour of natural boron-bearing metapelites from the Mt. Stafford area, central Australia

Cited by 48 publications

References 64 publications

Textural and compositional evidence for a polyphase saturation of tourmaline in granitic rocks from the Třebíč Pluton (Bohemian Massif)

Textural and compositional evidence for a polyphase saturation of tourmaline in granitic rocks from the Třebíč Pluton (Bohemian Massif)

Lithium and boron in late-orogenic granites – Isotopic fingerprints for the source of crustal melts?

The characterization of tourmaline and its effects on plant growth

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