|
|
 |
|||||||||||||||||
|
|||||||||||||||||
 |
|||||||||||||||||
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
1 CNR-Istituto di Geoscienze e Georisorse (IGG), Sezione di Pavia, Via Ferrata 1, I-27100 Pavia, Italy
2 Department of Geological Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
3 Geological Survey of Canada, 601, Booth Street, Ottawa, K1A 0E8, Canada
Correspondence: * E-mail: ottolini{at}crystal.unipv.it
Matrix effects in secondary-ion mass spectrometric (SIMS) analysis of light elements (H, Li, Be, B, and F) have been investigated in phenacite, kornerupine, danburite, axinite, spodumene, tourmaline, hambergite, and mica, all of which were epoxy-mounted in a known crystallographic orientation relative to the primary-ion beam. As reference chemical information, we used data from electron microprobe analysis (EMPA) and from single-crystal structure-refinement (SREF) on the same crystals used for SIMS. Quantification of secondary-ion intensities into concentrations was done using Si as the reference matrix element. The results indicate that matrix effects due to crystallographic orientation are <10% relative, or below analytical uncertainty for most analyzed elements. In dioctahedral mica, there is a difference in H/Si ion yield (IY) of ~25% relative when the crystal is analyzed parallel and orthogonal to the main cleavage (which is perpendicular to the c axis). The magnitude of this effect is significant and higher than our SIMS accuracy for H in micas: ±10% relative.
Among the analyzed elements, Be is affected least by matrix effects, even when present as a major element. The most significant chemical effects on SIMS analysis of H, Li, F, and B in silicates seem to be related to the Fe (+Mn) content of the matrix: the light-element IY decreases as the Fe (+Mn) content increases, as previously seen in tourmaline, axinite, and kornerupine. Silicon and Al seem to have complementary and opposite effects on IY with respect to Fe and Mn. The agreement between SIMS and SREF is close for most light elements when they are present as major constituents. The results of our study also show that analytical problems are still present for B by EMPA, and this technique may not be adequate to measure B accurately in some minerals.
This article has been cited by other articles:
|
|
 |
|
  F. K. Mazdab CHARACTERIZATION OF FLUX-GROWN TRACE-ELEMENT-DOPED TITANITE USING THE HIGH-MASS-RESOLUTION ION MICROPROBE (SHRIMP-RG) Can Mineral, August 1, 2009; 47(4): 813 - 831. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. A. Fregola, G. Capitani, E. Scandale, and L. Ottolini Chemical control of 3T stacking order in a Li-poor biotite mica American Mineralogist, February 1, 2009; 94(2-3): 334 - 344. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. Camara, R. Oberti, L. Ottolini, G. Della Ventura, and F. Bellatreccia The crystal chemistry of Li in gadolinite American Mineralogist, July 1, 2008; 93(7): 996 - 1004. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Matarrese, E. Schingaro, F. Scordari, F. Stoppa, G. Rosatelli, G. Pedrazzi, and L. Ottolini Crystal chemistry of phlogopite from Vulture-S. Michele Subsynthem volcanic rocks (Mt. Vulture, Italy) and volcanological implications American Mineralogist, February 1, 2008; 93(2-3): 426 - 437. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 E. MEDARD, M. W. SCHMIDT, P. SCHIANO, and L. OTTOLINI Melting of Amphibole-bearing Wehrlites: an Experimental Study on the Origin of Ultra-calcic Nepheline-normative Melts J. Petrology, March 1, 2006; 47(3): 481 - 504. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. Mesto, E. Schingaro, F. Scordari, and L. Ottolini An electron microprobe analysis, secondary ion mass spectrometry, and single-crystal X-ray diffraction study of phlogopites from Mt. Vulture, Potenza, Italy: Consideration of cation partitioning American Mineralogist, January 1, 2006; 91(1): 182 - 190. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. Bellatreccia, F. Camara, L. Ottolini, G. Della Ventura, G. Cibin, and A. Mottana WILUITE FROM ARICCIA, LATIUM, ITALY: OCCURRENCE AND CRYSTAL STRUCTURE Can Mineral, October 1, 2005; 43(5): 1457 - 1468. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Kagi, O. Muntener, P. Ulmer, and L. Ottolini Piston-cylinder experiments on H2O undersaturated Fe-bearing systems: An experimental setup approaching fO2 conditions of natural calc-alkaline magmas American Mineralogist, April 1, 2005; 90(4): 708 - 717. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. T. Tait, F. C. Hawthorne, J. D. Grice, L. Ottolini, and V.K. Nayak Dellaventuraite, NaNa2(MgMn23+Ti4+Li)Si8O22O2, a new anhydrous amphibole from the Kajlidongri Manganese Mine, Jhabua District, Madhya Pradesh, India American Mineralogist, February 1, 2005; 90(2-3): 304 - 309. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. ARMBRUSTER and A. FEENSTRA Lithium in nigerite-group minerals European Journal of Mineralogy, April 1, 2004; 16(2): 247 - 254. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. Camara, L. Ottolini, and F. C. Hawthorne Crystal chemistry of three tourmalines by SREF, EMPA, and SIMS American Mineralogist, October 1, 2002; 87(10): 1437 - 1442. [Abstract] [Full Text] [PDF]
|
|
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
