SHRIMP Zircon U-Pb Ages and Geochemical Characteristics of the Neoproterozoic Granitoids in the Huangling Anticline and Its Tectonic Setting
- Received Date: 2017-03-03
- Accepted Date: 2017-03-03
- Available Online: 2017-03-03
Abstract: SHRIMP zircon U-Pb dating of the Neoproterozoic Maoping series (Sandouping (rock suite) granites exposed in the southern part of the Huangling anticline shows that the formation time of Sandouping biotite-hornblende tonalite intrusion, Jinpansi hornblende-biotite tonalite intrusion, and Longtanping monzogranite are 863 +/- 9, 842 +/- 10, and 844 +/- 10 Ma, respectively. Their geochemical features include A/CNK=0.98-1.06, from metaluminous to weakly peraluminous, delta=1.37-1.53, Sm/Nd=0.17-0.24, and Rb-N/Yb-N=1.1-3.62. These ..