Journal of Northeastern University Natural Science ›› 2014, Vol. 35 ›› Issue (6): 898-902.DOI: 10.12068/j.issn.1005-3026.2014.06.031

• Resources & Civil Engineering • Previous Articles     Next Articles

Study on the Geochronology of Mengentaolegai Pluton in Horqin Right Wing Middle Banner,Inner Mongolia

SONG Weimin1, GONG Enpu1, LIU Shiwei2, FU Junyu2   

  1. 1School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China; 2Shenyang Institute of Geology and Mineral Resources, Shenyang 110034, China.
  • Received:2013-08-28 Revised:2013-08-28 Online:2014-06-15 Published:2014-04-11
  • Contact: SONG Weimin
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Abstract: LAICPMS zircon UPb isotope geochronology was studied for Mengentaolegai pluton in Horqin Right Wing Middle Banner, Inner Mongolia. The results show that the Mengentaolegai pluton formed (224±1)Ma ago and is Triassic in age. The available previous data of regional geology and some research works infer that the Triassic granite may be the product of lithosphere compressive mechanism during the Paleoasian Ocean collided and closed. The results provide a new geochronological evidence for confirming the collisional time between the North China Plate and the Siberian Plate.

Key words: Horqin Right Wing Middle Banner, Mengentaolegai pluton, Triassic, LAICPMS, geochronology

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