Trace elements in quartz: a combined electron microprobe, secondary ion mass spectrometry, laser-ablation ICP-MS, and cathodoluminescence study

We present electron microprobe, secondary ion mass spectrometry, and laser ablation inductively coupled mass spectrometry data for common trace elements (Li, Al, Ti, Na, K, Fe) in quartz. Our samples from both magmatic and hydrothermal environments all show heterogeneity at the single grain scale. ConcentrationsofAlandTi determinedbyEPMA,SIMS,andLA-ICP-MSareinroughagreementandconfirmtherobustnessof these analytical methods. The highest precision data were obtained from SIMS, but this is outweighed by the lack of a high quality quartz reference sample for calibrating this technique. Due to its large sampling volume, laser ablation analyses gave only average values for trace elements in zoned quartz. Because of its better spatial resolution in conjunction with the ability to combine spot analyseswithcathodoluminescenceimaging EPMAprovedthemost reliable insitu methodfor obtainingquantitativetraceelement dataofquartzatconcentrationsinexcessof afew10' sofppmandatthe<10µ mscale.However,oursamplecontainedfewelements at such high concentration levels. We found in our samples a positive correlation between CL signature and the observed Ti contents for the samples investigated. In particular, blue luminescing zones were found to have elevated Ti concentrations as compared to other nearby domains. Using a mathematical spectral deconvolution weshow thehighlycomplex natureof CL emission- it appearsthat other trace elementmight play a less pronounced role in this process. Our examples demonstrate the value of CL for documenting multi-phase alteration in quartz. In agreement with previously proposed models, we confirm a significant correlation between mono- and tri-valent cation concentrations in quartz. A very strong correlation in alkali metal contents is particularly obvious. Ti was found to be universally present in magmatic quartz, but at much lower abundance in hydrothermal quartz.

[1]  A. Müller,et al.  Cathodoluminescence and micro-structural evidence for crystallisation and deformation processes of granites in the Eastern Lachlan Fold Belt (SE Australia) , 2002 .

[2]  A. Grimstvedt,et al.  In situ analysis of trace elements in quartz by using laser ablation inductively coupled plasma mass spectrometry , 2002 .

[3]  K. Simon Does δD from fluid inclusion in quartz reflect the original hydrothermal fluid , 2001 .

[4]  M. Plötze,et al.  Origin, spectral characteristics and practical applications of the cathodoluminescence (CL) of quartz – a review , 2001 .

[5]  A. Müller Cathodoluminescence and characterisation of defect structures in quartz with applications to the study of granitic rocks , 2001 .

[6]  Christian Schmidt,et al.  In-situ Raman spectroscopy of quartz: A pressure sensor for hydrothermal diamond-anvil cell experiments at elevated temperatures , 2000 .

[7]  R. Seltmann,et al.  Application of cathodoluminescence to magmatic quartz in a tin granite – case study from the Schellerhau Granite Complex, Eastern Erzgebirge, Germany , 2000 .

[8]  Thomas G. Alley,et al.  Secondary ion mass spectrometry study of space-charge formation in thermally poled fused silica , 1999 .

[9]  R. Luedke,et al.  Petrochemistry of Late Miocene Peraluminous Silicic Volcanic Rocks from the Morococala Field, Bolivia , 1998 .

[10]  G. Watt,et al.  Cathodoluminescence and trace element zoning in quartz phenocrysts and xenocrysts , 1997 .

[11]  A. Kearsley,et al.  RAPID COMMUNICATIONS Complex quartz growth histories in granite revealed by scanning cathodoluminescence techniques , 1997, Geological Magazine.

[12]  W. B. Harland,et al.  Late Silurian and Early Devonian stratigraphy and probable strike-slip tectonics in northwestern Spitsbergen , 1997, Geological Magazine.

[13]  S. Jackson,et al.  A Compilation of New and Published Major and Trace Element Data for NIST SRM 610 and NIST SRM 612 Glass Reference Materials , 1997 .

[14]  M. Ploetze,et al.  Investigation of trace-element distribution in detrital quartz by Electron Paramagnetic Resonance (EPR) , 1997 .

[15]  A. Stephan,et al.  Cathodoluminescence investigations and trace-element analysis of quartz by micro-PIXE; implications for diagenetic and provenance studies in sandstone , 1996 .

[16]  W. Mchardy Microprobe Techniques in the Earth Sciences , 1996, Clay Minerals.

[17]  C. Girardet,et al.  Small alkali metal clusters on (001) quartz surface: adsorption and diffusion , 1995 .

[18]  R. Pankrath,et al.  Microdistribution of Al, Li, and Na in alpha quartz; possible causes and correlation with short-lived cathodoluminescence , 1992 .

[19]  K. Ramseyer,et al.  Factors influencing short-lived blue cathodoluminescence of alpha -quartz , 1990 .

[20]  A. Kronenberg,et al.  Fourier transform infrared spectroscopy determinations of intragranular water content in quartz-bearing rocks: implications for hydrolytic weakening in the laboratory and within the earth , 1990 .

[21]  R. Hervig,et al.  An experimental study of hydroxyl in quartz using infrared spectroscopy and ion microprobe techniques , 1989 .

[22]  A. Matter,et al.  Cathodoluminescence Colours of α-Quartz , 1988, Mineralogical Magazine.

[23]  H. Behr,et al.  The role of sedimentary and tectonic brines in the Damara Orogen, Namibia , 1987 .

[24]  G. Rossman,et al.  Solubility and diffusional uptake of hydrogen in quartz at high water pressures: Implications for hydrolytic weakening , 1986 .

[25]  G. Crozaz,et al.  A method for the quantitative measurement of rare earth elements in the ion microprobe , 1986 .

[26]  Roger D. Aines,et al.  Water in minerals? A peak in the infrared , 1984 .

[27]  J. A. Weil A review of electron spin spectroscopy and its application to the study of paramagnetic defects in crystalline quartz , 1984 .

[28]  N. Shimizu,et al.  Geochemical applications of quantitative ion-microprobe analysis☆ , 1978 .

[29]  G. Lehmann On the color centers of iron in amethyst and synthetic quartz: A discussion , 1975 .

[30]  M. Schieber,et al.  Microsegregation of impurities in hydrothermally-grown quartz crystals , 1974 .

[31]  G. Lehmann,et al.  Quarzkristalle und ihre Farben , 1973 .

[32]  W. H. Blackburn,et al.  Aluminum in quartz as a geothermometer , 1970 .

[33]  W. Dennen Stoichiometric substitution in natural quartz , 1966 .

[34]  P. Hörmann Zur geochemie des germaniums , 1963 .

[35]  A. Kats Hydrogen in alpha-quartz , 1961 .

[36]  R. Larsen,et al.  Granite pegmatite quartz from Evje-Iveland: trace element chemistry and implications for the formation of high-purity quartz , 2000 .

[37]  J. Lowenstern,et al.  Exsolved magmatic fluid and its role in the formation of comb-layered quartz at the Cretaceous Logtung W-Mo deposit, Yukon Territory, Canada , 1996, Earth and Environmental Science Transactions of the Royal Society of Edinburgh.

[38]  H. Bahadur Sweeping and irradiation effects on hydroxyl defects in crystalline natural quartz , 1994, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[39]  C. Roques-carmes,et al.  Cathodoluminescence applied to the microcharacterization of mineral materials : a present status in experimentation and interpretation , 1992 .

[40]  L. Reimer,et al.  Scanning Electron Microscopy , 1984 .

[41]  G. Lehmann,et al.  A trapped-hole center causing rose coloration of natural quartz , 1983 .

[42]  W. Dennen TRACE ELEMENTS IN QUARTZ AS INDICATORS OF PROVENANCE , 1967 .