soursat metamorphic complex (smc) in west of takab city is one of the polyphase metamorphic terrenes in northern sanandaj-sirjan metamorphic belt of iran. the smc composed mainly of metasedimentary rocks associated with granitic intrusions. based on metamorphic rocks, two metamorphic phases could be separate in the complex. m1 is representative of regional metamorphisms which varies from greens...

Due to developments in reaction cell technologies, it is now possible collect large 87 Rb/ 86 Sr and Sr/ data sets using LA‐ICP‐MS/MS. Until now, LA‐ICP‐MS/MS Rb‐Sr ages were constrained conventional isochrons on a contiguous set of data. In this contribution, we present straightforward procedure how measure, calculate validate from individual laser spots even detrital grains devoid context. Th...

This paper describes rapid methods for the determination of the production date (age dating) of plutonium (Pu) materials by inductively coupled plasma mass spectrometry (ICP-MS) for nuclear forensic and safeguards purposes. One of the presented methods is a rapid, direct measurement without chemical separation using 235U/239Pu and 236U/240Pu chronometers. The other method comprises a straightfo...

Abstract. The same unetched and chemically etched apatite crystals from five rock samples were dated by the U–Pb method via laser ablation inductively coupled plasma mass spectrometry (LA–ICP-MS). objective of this study is to test whether chemical etching required for fission track analysis impacts precision accuracy geochronology. results experiment suggest that has insignificant effects on a...

The use of analytical techniques is important and critical in all areas related to REE, such as basic fundamental research, exploration, mining, extraction, metallurgical activities at different stages by industries. At every stage these activities, rock, ore, minerals, other materials have be analyzed for their REE contents terms elemental, isotopic, mineralogical concentrations using techniqu...