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titanium-in-zircon thermometry

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Journal Article
Journal: Geology
Published: 01 April 2007
Geology (2007) 35 (4): 295-298.
...J.A. Baldwin; M. Brown; M.D. Schmitz Abstract Titanium-in-zircon thermometry has been applied to evaluate the temperatures of metamorphism for two ultrahigh-temperature (UHT) granulite localities, the Neoproterozoic Anápolis-Itauçu Complex in central Brazil, and lower crustal xenoliths from...
FIGURES
Journal Article
Journal: Geology
Published: 01 February 2016
Geology (2016) 44 (2): 143-146.
... ) are universally lower (<800 °C) than those expected by dehydration melting of mafic crust ( T >900 °C). The values contrast with T zr from alkaline rocks from the Cenozoic U.S. Cordillera, which are typically >800 °C for 65–70 wt% SiO 2 . Case studies of titanium-in-zircon thermometry from the U.S...
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Journal Article
Journal: Economic Geology
Published: 01 May 2012
Economic Geology (2012) 107 (3): 525-535.
..., with 6 million metric tons (Mt) of contained titanium. Most of the rutile ores are hosted in garnet-free anthophyllite gneiss with minor Mg hornblende, feldspar, quartz, phlogopite, rutile, zircon, and titanite. Rutile grains are euhedral, 0.02 to 0.50 mm in size, contain 98.649 to 99.784 wt % TiO 2...
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Journal Article
Journal: Geology
Published: 07 September 2018
Geology (2018) 46 (10): 887-890.
...-titanium (Fe-Ti) oxide thermometry suggests that the magmas were significantly zircon undersaturated upon eruption and therefore a mafic rejuvenation event driving the eruption was short lived (<2500 yr). The discontinuous nature of the zircon age distribution in the ignimbrites contrasts with the more...
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<b>Titanium</b> <b>thermometry</b> temperature versus <b>zircon</b> composition (sd, standard de...
in > Geology
Published: 01 October 2009
Figure 2. Titanium thermometry temperature versus zircon composition (sd, standard deviation). Open symbols are norites, closed symbols represent granophyres.
Journal Article
Published: 02 January 2003
Reviews in Mineralogy and Geochemistry (2003) 53 (1): 89-112.
... understand the nature (e.g., the physical properties and chemical composition) of inherited zircon in natural systems, or to determine the nature of zircon dissolving in zircon-undersaturated silicate melts. The goal of this review paper is to discuss the role of zircon saturation thermometry...
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Journal Article
Journal: Geology
Published: 01 March 2014
Geology (2014) 42 (3): 267-270.
...) that are exceptionally high for silicic melts ( Miller et al., 2003 ). Here we test the hypothesis for the Grenville as a hot orogen, and the utility of high-Zr granitoids as probes of crustal zones of magma generation, using a combination of Ti-in-zircon thermometry and quantitative modeling of the crystallization...
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Journal Article
Published: 01 July 2009
Journal of Sedimentary Research (2009) 79 (7): 540-553.
... ratios, garnet geochemistry, tourmaline geochemistry, and detrital zircon geochronology, established the presence of five distinct sand types (MN1, MN2a, MN3, MN4, and MN5), sourced from different parts of the Norwegian and Greenland landmasses to the east and west of the basin. Approximately 50 rutile...
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Journal Article
Published: 01 February 2016
American Mineralogist (2016) 101 (2): 469-482.
... )/ dT slope can be negative. Biotite, FeTi-oxides, liquid, and possibly plagioclase largely maintained equilibrium in the Bishop Tuff magma (unlike the pyroxenes, and cores of quartz, sanidine, and zircon) prior to and during a mixing event triggered by a deeper recharge, which, based on elemental...
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Journal Article
Published: 01 April 2012
American Mineralogist (2012) 97 (4): 543-555.
...-in-zircon, and Zr-in-rutile thermometers are as low as ±5–10 °C ( Watson et al. 2006 ; Wark and Watson 2006 ; Tomkins et al. 2007 ) and ±20 °C for Zr-in-titanite ( Hayden et al. 2008 ), similar to the measured reproducibility of these thermometers in natural rocks (e.g., Zack et al. 2004 ; Spear et al...
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Journal Article
Journal: Economic Geology
Published: 01 December 2016
Economic Geology (2016) 111 (8): 1985-2016.
...Albert H. Hofstra; Corey J. Meighan; Xinyu Song; Iain Samson; Erin E. Marsh; Heather A. Lowers; Poul Emsbo; Andrew G. Hunt Abstract Mineral thermometry and fluid inclusion studies were conducted on variably altered and mineralized samples from the Mesoproterozoic Pea Ridge iron oxide-apatite (IOA...
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Journal Article
Published: 01 June 2016
American Mineralogist (2016) 101 (6): 1438-1450.
... of experiments. The use of a fluxing agent has previously proven to be successful in the case of zircon-garnet partitioning by Rubatto and Hermann (2007) . The rhyolite flux was synthesized using dried oxides and carbonates, as above; alkalis were added as natural albite and K-feldspar. For experimental run...
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Journal Article
Journal: Geology
Published: 01 December 2011
Geology (2011) 39 (12): 1143-1146.
... Ga. Monazite-xenotime thermometry of intergrowths in the inclusions and the quartz-muscovite rock matrix constrain temperatures to between 420–475 °C, corresponding with conditions during peak regional metamorphism. Petrography and U-Pb geochronology of zircon inclusions from other localities show...
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Sample locations for proto–Kern Canyon fault <b>thermometry</b> (stars) and  40 Ar...
in > Geosphere
Published: 01 April 2016
Figure 5. Sample locations for proto–Kern Canyon fault thermometry (stars) and 40 Ar/ 39 Ar ages (small squares) mapped on an igneous crystallization depth contour surface (modified from Nadin and Saleeby, 2008 ). The large squares give sample numbers and temperatures from titanium-in-quartz
Journal Article
Published: 01 April 2015
American Mineralogist (2015) 100 (4): 915-925.
.... ( 2006 ) TitaniQ: a titanium-in-quartz geothermometer . Contributions to Mineralogy and Petrology , 152 , 743 – 754 . Watson E.B. Wark D.A. Thomas J.B. ( 2006 ) Crystallization thermometers for zircon and rutile . Contributions to Mineralogy and Petrology , 151 , 413 – 433...
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Journal Article
Published: 01 December 2006
Mineralogical Magazine (2006) 70 (6): 709-729.
... aluminous subgroup rocks, zircon is weakly zoned and exhibits very low Th but relatively high U contents. The REE minerals are dominated by Th-rich monazite-(Ce). Titanium-poor magnetite, pyrophanite and rutile are the major Fe-Ti oxides. These occurrences indicate that peralkaline magmas favour...
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Journal Article
Published: 01 November 2018
American Mineralogist (2018) 103 (11): 1851-1868.
... surrounding large garnets. Some sapphires are concentrically color zoned. We carried out a P-T estimation using ternary feldspar reintegration thermometry of metamorphic antiperthites together with pseudosection modeling. Samples texturally and chemically record near-eclogite facies equilibration at minimum...
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Journal Article
Journal: Geology
Published: 01 July 2007
Geology (2007) 35 (7): 635-638.
... extending MELTS to calculate subsolidus phase relations : American Mineralogist , v. 83 pp. 1127 - 1131 . Baldwin , J.A. , Brown , M. , and Schmitz , M.D. , 2007 , First application of titanium-in-zircon thermometry to ultrahigh-temperature metamorphism : Geology , v. 35 (in press...
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Journal Article
Published: 01 December 2009
Journal of the Geological Society (2009) 166 (6): 1013-1032.
... assemblage fields in isochemical phase diagrams. Rb–Sr multi-mineral–whole-rock isochrons from two samples from close to the bottom of this nappe date formation of a retrograde sillimanite-bearing penetrative fabric to c . 590 Ma at temperatures of c . 750 °C (based on Ti-in-quartz thermometry). Rare zircons...
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Journal Article
Journal: Geology
Published: 01 October 2009
Geology (2009) 37 (10): 927-930.
...Figure 2. Titanium thermometry temperature versus zircon composition (sd, standard deviation). Open symbols are norites, closed symbols represent granophyres. ...
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