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U pb dating of zircon by la icp ms

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Science Reporter (SR), Vigyan Pragati (VP) & Science Ki Duniya (SKD) and a Natural Products Repository (NPARR).

Present study consists on the sedimentation age of the Mesoproterozoic Zhaertai Group exposed along the northern margin of the North China Craton using zircon ages.

Our research contributes to the Research Field Biodiversity and Earth System Dynamics.

The Section Geochronology performs in-situ analysis on geological materials by making use of Inductively Coupled Plasma Mass Spectroscopy combined with Laser Ablation (LA ICP-MS).

As a result we are able to increase the scan rate for mapping while still capturing chemical variations.

Since commissioning these instruments in 2010, we have established a number of analytical procedures with applications to geochemistry, geochronology, geo-metallurgy, and tracer-isotope studies.

The information below describes some of the pertinent components of the system 1. Fast-mapping LA-ICP-MS setup Adjustments have been made to our tubing diameter and material (1.5mm ID ETFE), and tubing length (1 m) to increase the speed of washout to the ICP-MS.

The results showed that the Th/U of zircon varied greatly, from 0.20 to 1.77.

Also, the mean ages of the two Concordia Groups of U were 2503.1 ± 2.6Ma (n = 20, MSWD = 1.6), and 1688.0 ± 11Ma (n = 8, MSWD = 1.5), respectively.