Comprehensive Chemical and Isotopic Analyses of Basalt and Sediment Reference Materials

Geostandards and Geoanalytical Research - Tập 35 Số 1 - Trang 125-143 - 2011
Catherine Chauvel, Sarah Bureau1, Christèle Poggi1
1LGCA, Maison des Geosciences, Universite de Grenoble, CNRS, BP 53, 38041 Grenoble Cedex, France

Tóm tắt

Geochemical studies of geological samples require the precise determination of their major and trace element contents and, when measured, of their isotopic compositions. It is now commonly accepted that the accuracy and precision of geochemical analyses are best estimated by the concomitant analysis of international reference materials run as unknown samples. Although the composition of a wide selection of basalts is relatively well constrained, this is far from being the case for sedimentary materials. We present here a comprehensive set of major and trace element data as well as Nd, Hf, Sr and Pb isotopic compositions for thirteen commonly used international reference materials – eight magmatic rocks (BHVO‐2, BR, BE‐N, BR 24, AGV‐1, BIR‐1, UB‐N, RGM‐1) and five sediments (JLk‐1, JSd‐1, JSd‐2, JSd‐3, LKSD‐1). We determined the concentrations of over forty elements in the magmatic rocks together with Sr, Nd, Hf and Pb isotopic compositions. Our trace element results were both accurate (difference ≤ 3%) and precise (reproducibility at 1s ≤ 3%) and the isotopic results were very similar to other published values. In contrast, we observed a significant chemical and isotopic variability in the sedimentary materials, which we attribute to mineral heterogeneities in the powders. Despite the limitation imposed by this heterogeneity, our work presents a complete set of data determined with a precision not yet achieved in the literature for sedimentary material. We also provide the first Nd, Hf and Pb isotopic measurements for the five sediments, which are commonly used by the geochemical community. Our study of both basalt and sediment reference materials represents a comprehensive and self‐consistent set of geochemical data and can therefore be considered as a reference database for the community.

Từ khóa


Tài liệu tham khảo

10.1016/j.chemgeo.2004.06.030

10.1111/j.1751-908X.1996.tb00177.x

10.1016/j.epsl.2008.10.028

10.1111/j.1751-908X.2003.tb00641.x

10.1016/S1251-8050(00)01456-7

Blais S., 2006, Notice explicative, carte géol

10.1007/s004100050278

10.1016/j.chemgeo.2004.08.004

10.1016/j.epsl.2008.04.036

10.1016/j.epsl.2009.07.043

10.1016/S0012-821X(01)00379-X

10.1029/2008GC002101

10.1016/0009-2541(94)00102-E

10.1016/j.chemgeo.2005.09.022

10.1016/S0009-2541(96)00100-3

10.1180/minmag.1998.62A.1.260

10.1111/j.1751-908X.1993.tb00122.x

10.1016/j.chemgeo.2003.08.003

Govindaraju K., 1994, 1994 compilation of working values and sample description for 383 geostandards, Geostandards Newsletter, 18, 10.1046/j.1365-2494.1998.53202081.x-i1

Govindaraju K, 1995, 1995 working values with confidence limits for twenty‐six CRPG, ANRT and IWG‐GIT geostandards, Geostandards Newsletter, 19, 10.1111/j.1751-908X.1995.tb00164.x

10.1111/j.1365-3091.2009.01075.x

10.1111/j.1751-908X.1996.tb00184.x

10.1016/j.gca.2005.11.010

10.1111/j.1751-908X.2004.tb01053.x

10.1111/j.1751-908X.2005.tb00904.x

10.1016/j.aca.2005.04.044

10.1111/j.1751-908X.1999.tb00577.x

10.1016/0016-7037(84)90221-7

10.1016/j.epsl.2004.06.023

10.1007/s00410-004-0645-4

10.1016/0009-2541(94)00140-4

10.1016/S0009-2541(97)00150-2

PlumeeG. (1998)USGS certificate of analysis: basalt Hawaiian Volcanic Observatory BHVO‐2. Available at:http://minerals.cr.usgs.gov/geo_chem_stand/basaltbhvo2.html#certinfo. Accessed date: October 2009.

10.1111/j.1751-908X.2001.tb00789.x

10.1111/j.1751-908X.2003.tb00644.x

10.1111/j.1751-908X.2009.00008.x

10.1111/j.1751-908X.1996.tb00178.x

10.1016/S0016-7037(98)00274-9

10.1029/2004GC000852

10.1029/2006GC001283

10.1029/2006GC001473

10.1016/S0009-2541(99)00182-5

10.1111/j.1751-908X.2005.tb00656.x

10.1111/j.1751-908X.2000.tb00584.x

Yamada T., 2002, Operation principles of the Agilent octopole reaction system (ORS), Agilent ICP-MS Journal

Thông tin
Thông tin xuất bản

Geostandards and Geoanalytical Research

Tập 35 Số 1

125-143

Thông tin tác giả