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<BODY bgcolor="#ffffCC"> <P> <IMG src="title.gif" align="BOTTOM" width="593" height="64"><BR> <HR align="center"> <P> <A href="gsj1j.html">Japanese</A> <BR> <BR> <IMG src="srm.gif" align="BOTTOM" width="43" height="21" usemap="#abstracte"><A href="abstracte.html">What's GSJ Reference Samples</A> ? <P> The Geological Survey of Japan (GSJ) has issued 31 rock reference samples for the analysis of major, minor and trace elements, isotopic compositions and isotopic ages. The purpose of this standard reference material project in Geological Survey of Japan is to improve and check the reliability of analytical data obtained from different methods and different laboratories. Therefore, these samples (total number is over 8000) have been distributed to analytical laboratories in 43 countries worldwide and the analytical data obtained with cooperative works were compiled and used to improve the accuracy of the data <P> Igneous rock series <TABLE> <TR> <TD align="left" valign="middle"> <A href="ja1e.html">JA-1</A> <TD align="left" valign="middle"> Andesite (1982) <TD align="left" valign="middle"> Hakone volcano <TR> <TD align="left" valign="middle"> <A href="ja2e.html">JA-2</A> <TD align="left" valign="middle"> Andesite (1985) <TD align="left" valign="middle"> Goshikidai sanukitoid <TR> <TD align="left" valign="middle"> <A href="ja3e.html">JA-3</A> <TD align="left" valign="middle"> Andesite (1986) <TD align="left" valign="middle"> Asama volcano <TR> <TD align="left" valign="middle"> <A href="jb1e.html">JB-1</A> <TD align="left" valign="middle"> Basalt (1968) <TD align="left" valign="middle"> Kitamatsuura basalt <TR> <TD align="left" valign="middle"> <A href="jb1ae.html">JB-1a</A> <TD align="left" valign="middle"> Basalt (1984) <TD align="left" valign="middle"> Replacement sample of JB-1 <TR> <TD align="left" valign="middle"> <A href="jb2e.html">JB-2</A> <TD align="left" valign="middle"> Basalt (1982) <TD align="left" valign="middle"> Oshima volcano <TR> <TD align="left" valign="middle"> <A href="jb3.html"></A> <A href="jb3e.html">JB-3</A> <TD align="left" valign="middle"> Basalt (1983) <TD align="left" valign="middle"> Fuji volcano <TR> <TD align="left" valign="middle"> <A href="jf1e.html">JF-1</A> <TD align="left" valign="middle"> Feldspar (1985) <TD align="left" valign="middle"> Ohira feldspar <TR> <TD align="left" valign="middle"> <A href="jf2e.html">JF-2</A> <TD align="left" valign="middle"> Feldspar (1986) <TD align="left" valign="middle"> Kurosaka feldspar <TR> <TD align="left" valign="middle"> <A href="jg1e.html">JG-1</A> <A href="jg1.html"></A> <TD align="left" valign="middle"> Granodiorite (1967) <TD align="left" valign="middle"> Sori granodiorite <TR> <TD align="left" valign="middle"> <A href="jg1ae.html">JG-1a</A> <TD align="left" valign="middle"> Granodiorite (1984) <TD align="left" valign="middle"> Replacement sample of JG-1 <TR> <TD align="left" valign="middle"> <A href="jg2e.html">JG-2</A> <A href="jg2.html"></A> <TD align="left" valign="middle"> Granite (1985) <TD align="left" valign="middle"> Naegi granite <TR> <TD align="left" valign="middle"> <A href="jg3e.html">JG-3</A> <TD align="left" valign="middle"> Granodiorite (1986) <TD align="left" valign="middle"> Mitoya granodiorite <TR> <TD align="left" valign="middle"> <A href="jgb1e.html">JGb-1</A> <TD align="left" valign="middle"> Gabbro(1983) <TD align="left" valign="middle"> Utsushigatake <TR> <TD align="left" valign="middle"> <A href="jp1e.html">JP-1</A> <TD align="left" valign="middle"> Peridotite (1984) <TD align="left" valign="middle"> Horoman peridotite <TR> <TD align="left" valign="middle"> <A href="jr1e.html">JR-1</A> <TD align="left" valign="middle"> Rhyolite (1982) <TD align="left" valign="middle"> Wada Toge obsidian <TR> <TD align="left" valign="middle"> <A href="jr2.html"></A> <A href="jgr2e.html"></A> <A href="jr2e.html">JR-2</A> <TD align="left" valign="middle"> Rhyolite (1983) <TD align="left" valign="middle"> Wada Toge obsidian </TABLE> <P> Sedimentary rock series <TABLE> <TR> <TD align="left" valign="middle"> <A href="jlk1e.html">JLk-1</A> <TD align="left" valign="middle"> Lake sediment (1987) <TD align="left" valign="middle"> Lake Biw <TR> <TD align="left" valign="middle"> <A href="jls1.html"></A> <A href="jls1e.html">JLs-1</A> <TD align="left" valign="middle"> Limestone (1987) <TD align="left" valign="middle"> Garo limestone <TR> <TD align="left" valign="middle"> <A href="jdo1e.html">JDo-1</A> <TD align="left" valign="middle"> Dolomite (1987) <TD align="left" valign="middle"> Kuzuu dolomite <TR> <TD align="left" valign="middle"> <A href="jsd1e.html">JSd-1</A> <TD align="left" valign="middle"> Stream sediment (1988) <TD align="left" valign="middle"> Composite sample of northern region, Ibaraki <TR> <TD align="left" valign="middle"> <A href="jsd2.html"></A> <A href="jsd2e.html">JSd-2</A> <TD align="left" valign="middle"> Stream sediment (1989) <TD align="left" valign="middle"> Composite sample of eastern region, Ibaraki <TR> <TD align="left" valign="middle"> <A href="jsd3e.html">JSd-3</A> <TD align="left" valign="middle"> Stream sediment (1989) <TD align="left" valign="middle"> Composite sample of central region, Ibaraki <TR> <TD align="left" valign="middle"> <A href="jsl1e.html">JSl-1</A> <TD align="left" valign="middle"> Slate (1988) <TD align="left" valign="middle"> Toyoma clay slate <TR> <TD align="left" valign="middle"> <A href="jsl2e.html">JSl-2</A> <TD align="left" valign="middle"> Slate (1989) <TD align="left" valign="middle"> Toyoma clay slate <TR> <TD align="left" valign="middle"> <A href="jch1e.html">JCh-1</A> <TD align="left" valign="middle"> Chert (1989) <TD align="left" valign="middle"> Ashio chert </TABLE> <P> Instrumentary rock series <TABLE> <TR> <TD align="left" valign="middle"> <A href="jr3.html"></A> <A href="jr3e.html">JR-3</A> <TD align="left" valign="middle"> Rhyolite (1990) <TD align="left" valign="middle"> Ashizuri peralkaline rhyolite <TR> <TD align="left" valign="middle"> <A href="jgb2e.html">JGb-2</A> <TD align="left" valign="middle"> Gabbro (1991) <TD align="left" valign="middle"> Tsukuba-san leucogabbro <TR> <TD align="left" valign="middle"> <A href="jh1e.html">JH-1</A> <TD align="left" valign="middle"> Hornblendite (1992) <TD align="left" valign="middle"> Nishi-Dohira pyroxene hornblendite <TR> <TD align="left" valign="middle"> <A href="jsy1e.html">JSy-1</A> <TD align="left" valign="middle"> Syenite (1993) <TD align="left" valign="middle"> Nephton, Ontario, Canada <TR> <TD align="left" valign="middle"> <A href="jmn1.html"></A> <A href="jmn1e.html">JMn-1</A> <TD align="left" valign="middle"> Manganese Nodule(1994) <TD align="left" valign="middle"> Southern Central Pacific Basin </TABLE> <HR align="center"> <H3>Related information for Geochemical reference samples</H3> <P> <IMG src="panel.gif" align="BOTTOM" width="577" height="85" usemap="#Ryukeie"><P> <A href="samp1.html"></A> <A href="samp1.html">1.Sample Processing Method</A> <BR> <A href="ryukei.html"></A> <A href="ryukeie.html">2.Diameter of particle size</A> <BR> <A href="ref.html">3.References</A> <BR> <A href="methodcode.html">4.Analytical method code</A> <BR> <A href="concent.html">5.Concentration range for geostandard samples(GSJ</A> , <A href="concentworld.html">World</A> ) <BR> <A href="worldgeostand.html">6.Geostandard samples in the world(Sample name,</A> <A href="wgeostandprod.html">Producer)</A> <BR> <A href="caution.html">7.Homogeneity</A> <BR> <A href="distribute.html">8.How to get GSJ geochemical reference smaples</A> <MAP name="Sample" id="CSIM__0"> <AREA shape="rect" coords="4,3,231,25" href="samp1.html"> </MAP> <MAP 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