青藏高原新生代南北走向裂谷研究进展
张佳伟, 李汉敖, 张会平, 徐心悦

Research Progress in Cenozoic N-S Striking Rifts in Tibetan Plateau
Jiawei Zhang, Han'ao Li, Huiping Zhang, Xinyue Xu
表1 青藏高原南北走向裂谷初始拉张时间
Table 1 Onset timing of N-S striking rifts in Tibet
裂谷名称拉张时间/Ma测年方法流变学特征

活动速率/

(mm/a)

参考文献
羌塘地体双湖

13.5

4

40Ar/39Ar

地形剖面

脆性-

[44]

[45]

与东西向伸展相关的埃达克岩47~38U-Pb，同位素地球化学岩脉-[41,46,47,48]
拉萨地体隆格尔>10(U-Th)/He韧性4.0~5.0[49][50]
打加错18.3U-Pb岩脉-[39]
当惹雍错

约13

14.5

(U-Th)/He

(U-Th)/He, AFT

脆性

0.3~0.7[34]

4.0~5.0[49]

[51]

[34]

申扎约14U-Pb脆性1.0~2.0[49][52]
念青唐古拉

11~5

8

40Ar-39Ar

Th-Pb

韧性—脆性4.0[24]

[27]

[24]

谷露7(U-Th)/He脆性4.0~5.0[49][53]
喜马拉雅Leo Pargil16.9~14.540Ar/39Ar韧性-[54,55]
Gular Mandhata15~940Ar/39Ar韧性-[56]
Thakkola11~10磁性地层--[57]
孔错

19

13~12

4

U-Pb

(U-Th)/He

U-Pb, Ar/Ar, (U-Th)/He

韧性—脆性-

[40]

[58]

[59]

Ama Drime Massif13Th-Pb韧性—脆性0.6~1.7[60][53]
4(U-Th)/He[61]
11P-T-D-t[62]
亚东<10Th-Pb-1.4[11][63]
540Ar/39Ar脆性[64]
错那<12K/Ar-0.6~1.7[65][66]