Translated Title
LA-ICP-MS Zircon U-Pb Dating of Xinchong Syenogranite in Southwestern Fujian and Its Prospecting Significance
Translated Abstract
The Xinchong syenogranite is located at the southeastern portion of the Hufang Compound granite, which is mainly composed of meat red patchy, coarse-grained syenogranite, generally presents a southwestward distribution and covers an area of 200 km2. In this paper, the LA-ICP-MS zircon U-Pb dating results for the Xinchong syenogranite, revealed a weighted mean 206U/236Pb age of 222.0 ± 1.0 Ma (n = 24, MSWD = 0.53). The result shows that the emplacement age of Xinchong syenogranite is of late Triassic. By contrast, the emplacement age of Xinchong syenogranite is younger than that of the Hufang granite (Silurian), reflecting that the Hufang Compound granite is the product of magmatic activities of the Silurian and Triassic. The REE elements of the Xinchong syenogranite show that the total amount of REE elements is higher, and the LREE elements of La and Ce are enriched, has a good prospecting prospects of ion-adsorbed REE deposits, this provides important information for magmatic evolution and prospecting in the southwest of Fujian pro- vince.
Access Number
WF:perioarticalHANS201707250043
