Abstract
The first detailed chronology for the late Oligocene to early Miocene continental record in northern Junggar Basin is presented, based on rock magnetic experiments and magnetostratigraphic investigations of a 192 m thick mammal-bearing section in the Ulungur River area. Magnetites and hematites were identified as the main carriers for the characteristic remanent magnetization, and the resulting polarity sequence allows an unambiguous correlation to the geomagnetic polarity time scale (GPTS). Furthermore, the Tieersihabahe fauna layer occurs below the Paleocene/Neocene boundary, and the Suosuoquan fauna layer is just above the Neocene onset. Therefore, the age of the Tieersihabahe fauna and Suosuoquan fauna layers can be definitely estimated to be about 25.2 Ma and 22.5 Ma, respectively.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Li C K, Wu W Y, Qiu Z D. Chinese Neogene: Subdivision and correlation. Vert Pal As (in Chinese), 1984, 22(3): 163–178
Qiu Z X, Qiu Z D. Chinese Neogene local mammalian faunas: succession and ages. J Stratigr (in Chinese), 1990, 14(4): 241–260
Tedford R H. Neogene mammalian biostratigraphy in China: Past, present, and future. Vert Pal As, 1995, 33(4): 272–289
Flynn L J, Wu W Y. The Late Cenozoic mammal record in North China and the Neogene mammal zonation of Europe. Bollettino della societa Paleontologica Italiana, 2001, 40(2): 195–199
Tong Y S, Qi T, Ye J, et al. Tertiary stratigraphy of the north of Junggar Basin, Xinjiang. Vertbr Pal Asia, 1990, 28(1): 59–70
Wu W Y, Ye J, Meng J. Progress of study of Tertiary Biostratigraphy in North Junggar Basin. Vertbr Pal Asia, 1998, 36(1): 24–31
Ye J, Wu W Y, Meng J. New result in the study of Tertiary Biostratigraphy in the Ulungur River Region of Xinjiang, China. Vertbr Pal Asia, 2000, 38(3): 192–202
Ye J, Wu W Y, Meng J. The age of Tertiary Strata and Mammal Faunas in Ulungur River area of Xinjiang. J Stratigr, 2001, 25(4): 283–287
Ye J, Wu W Y, Meng, J. Tertiary Stratigraphy in the Ulungur River area of Xinjiang. J Stratigr, 2001, 25(3): 193–200
Zijderveld J D A. AC Demagnetization of Rocks—Analysis of Results in Methods in Palaeomagnetism., New York: Elsevier, 1967. 254–286
Kirschvink J L. The least-squares line and plane and the analysis of palaeomagnetic data. Geophys J R Astr Soc, 1980, 62: 699–718
Cande S C, Kent D V. Revised calibration of the geomagnetic polarity timescale for the Late Cretaceous and Cenozoic. J Geophy Res, 1995, 100: 6093–6095
Berggren W A, Kent D V, Swisher C C, et al. A revised Cenozoic geochronology and chronostratigraphy. In: Berggren W A, Kent D V, Aubry M P, et al, eds. Geochronology, Timescales and Global Stratigraphic Correlation: Framework for a Historical Geology. SEPM (Society for Sedimentary Geology), Specical Publication, No. 54. 1995. 129–212
Gradstein F M, Ogg J G, Smith A G, et al. A new geologic time scale with special reference to Precambrian and Neogene. Episodes, 2004, 27(2): 83–100
Steininger F F, Aubry M, Berggren W A, et al. The Global Stratotype Section and Point (GSSP) for the base of the Neogene. Episodes, 1997, 20(1): 23–28
Everett L. Correlation of mammalian biochronology with the Geomagnetic polarity time scale. Bollettino della societa Paleontologica Italiana, 2001, 40(2): 225–233
Qiu Z X, Wang B Y, Qiu Z D. Land mammal geochronology and magnetostratigraphy of mid-Tertiary deposits in Lanzhou Basin, Gansu Province, China. Eclogae Geologicae Helvetiae, 2001, 94(3):373–385
Yue L P, Heller F, Qiu Z X, et al. Magnetostratigraphy and paleoenvironmental record of Tertiary deposits of Lanzhou Basin. Chin Sci Bull, 2001, 46(9): 770–773
Reidar L, Su P, Fan X Z, et al. A revised paleomagnetic age of the Nihewan Group at the Xujiayao Palaeolithic site, China. Quat Sci Rev, 2001, 20: 1341–1353
Zhu R X, An Z S, Potts R, et al. Magnetostratigraphic dating of early humans in China. Earth-Sci Rev, 2003, 61: 341–359
Fang X M, Garzione C, Voo R V, et al. Flexural subsidence by 29 Ma on the NE edge of Tibet from the magnetostratigraphy of Linxia Basin, Chinese. Earth Planet Sci Lett, 2003, 210: 545–560
Sun J M, Zhu R X, Bowler J. Timing of the Tianshan Mountains uplift constrained by magnetostratigraphic analysis of molasses deposits. Earth Planet Sci Lett, 2004, 219: 239–253
Author information
Authors and Affiliations
Corresponding author
Additional information
Supported by the National Natural Science Foundation of China (Grant Nos. 40372202 and 40172610) and National Important Basic Research Project of China (Grant No. G2003CB214607)
About this article
Cite this article
Zhang, R., Yue, L. & Wang, J. Magnetostratigraphic dating of mammalian fossils in Junggar Basin, northwest China. CHINESE SCI BULL 52, 1526–1531 (2007). https://doi.org/10.1007/s11434-007-0205-1
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s11434-007-0205-1