Magnetostratigraphy of the late Cenozoic Laojunmiao anticline in the northern Qilian Mountains and its implications for the northern Tibetan Plateau uplift

被引:185
作者
Fang, XM [1 ]
Zhao, ZJ
Li, JJ
Yan, MD
Pan, BT
Song, CH
Dai, SA
机构
[1] Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China
[2] Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China
[3] Lanzhou Univ, Coll Resources & Environm, Lanzhou 730000, Peoples R China
[4] Nanjing Normal Univ, Coll Geog, Nanjing 210097, Peoples R China
来源
SCIENCE IN CHINA SERIES D-EARTH SCIENCES | 2005年 / 48卷 / 07期
关键词
Qilian Mountains; Qinghai-Tibetan Plateau; Jiuquan Basin; magnetostratigraphy;
D O I
10.1360/03yd0188
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Cenozoic sediments in the foreland basin-Jiuquan Basin in west Hexi Corridor recorded tectonic uplift information of the Qilian Mountains. High resolution paleomagnetic dating of the Laojunmiao (LJM) section across the central LJM anticline in the southern Jiuquan Basin reveals ages of the Getanggou Member, Niugetao Member in the Shulehe Formation, the Yumen Conglomerate, Jiuquan Conglomerate and Gobi Formation at > 13-8.3 Ma, 8.3-4.9 Ma, 3.66-0.93 Ma, 0.84-0.14 Ma and 0.14-0 Ma, respectively. Sedimentary evolution study suggests that the Qilian Mountains should begin to rise gradually since similar to 8-6.6 Ma, accompanied by sedimentary environments changing from lacustrine mudstones-sandstones to alluvial conglomerates. Rapid uplift of the Qilian Mountains began at similar to 3.66 Ma, followed by a series of stepwise or intermittent intensive uplifts at about < 1.8-1.23 Ma, 0.93-0.84 Ma and 0.14 Ma, which finally resulted in the present high Qilian Mountains.
引用
收藏
页码:1040 / 1051
页数:12
相关论文
共 35 条
[1]   Eolian evidence from the Chinese Loess Plateau: the onset of the Late Cenozoic Great Glaciation in the Northern Hemisphere and Qinghai-Xizang Plateau uplift forcing [J].
An, ZS ;
Wang, SM ;
Wu, XH ;
Chen, MY ;
Sun, DH ;
Liu, XM ;
Wang, FB ;
Li, L ;
Sun, YB ;
Zhou, WJ ;
Zhou, J ;
Liu, XD ;
Lu, HY ;
Zhang, YX ;
Dong, GG ;
Qiang, XK .
SCIENCE IN CHINA SERIES D-EARTH SCIENCES, 1999, 42 (03) :258-271
[2]   SEQUENTIAL LATE CENOZOIC STRUCTURAL DISRUPTION OF THE NORTHERN HIMALAYAN FOREDEEP [J].
BURBANK, DW ;
REYNOLDS, RGH .
NATURE, 1984, 311 (5982) :114-118
[3]   REVISED CALIBRATION OF THE GEOMAGNETIC POLARITY TIMESCALE FOR THE LATE CRETACEOUS AND CENOZOIC [J].
CANDE, SC ;
KENT, DV .
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1995, 100 (B4) :6093-6095
[4]  
Chen J., 1996, QUATERNARY SCI, V16, P263
[5]  
Fang X.M., 1997, Chin Sci Bull, V42, P1457
[6]  
George AD, 2001, GEOLOGY, V29, P939, DOI 10.1130/0091-7613(2001)029<0939:MCITNQ>2.0.CO
[7]  
2
[8]   RAISING TIBET [J].
HARRISON, TM ;
COPELAND, P ;
KIDD, WSF ;
YIN, A .
SCIENCE, 1992, 255 (5052) :1663-1670
[9]  
HUANG H. F., 1993, ACTA GEOLOGICA GANSU, V2, P6
[10]   PALEOMAGNETIC CHRONOLOGY, FLUVIAL PROCESSES, AND TECTONIC IMPLICATIONS OF THE SIWALIK DEPOSITS NEAR CHINJI VILLAGE, PAKISTAN [J].
JOHNSON, NM ;
STIX, J ;
TAUXE, L ;
CERVENY, PF ;
TAHIRKHELI, RAK .
JOURNAL OF GEOLOGY, 1985, 93 (01) :27-40