Title: Zircon LA-ICPMS dating of the Tanshan pluton in the area of southern Anhui Province and its geological significances
Abstract:The Yanshanian magmatic rocks are widely distributed in the area of southern Anhui Provine,but the chronological works on the magmatic rocks are still weak.For constructing the geochronological framew...The Yanshanian magmatic rocks are widely distributed in the area of southern Anhui Provine,but the chronological works on the magmatic rocks are still weak.For constructing the geochronological framework of these Yanshanian magmatic rocks,this paper deals with geochronological study on the Tanshan pluton by using zircon LA-ICPMS U-Pb dating for the K-feldspar granites from the pluton.Two coincident weighted mean 206Pb/235 U ages of 128.5±1.7Ma and 128.3±1.5Ma respectively for two samples from Tanshan pluton are obtained,which represent magma intrusive age of Early Cretaceous.By combining with the high precision age data of magmatic rocks in the area,the Mesozoic magmatic rocks in the area of southern Anhui Province can be divided into three stages,namely 142~139Ma(the first peak period),133~130Ma(the second peak period)and 128~125Ma(the third peak period).Read More
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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Cited By Count: 2
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