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Timing of tibetan plateau uplift and related climate change

Timing of tibetan plateau uplift and related climate change

Objective

What is the timing and mechanism of uplift of the Tibetan plateau and its relation to climate change? The prevailing answer to this fundamental question is: wholesale plateau uplift due to convective removal of Tibetan lithosphere at ~8 Ma triggers the onset of Asian monsoons and global climate change. However, growing evidence from paleoclimatic and geologic indicators argue for older initiation of Tibetan uplift and progressive northeastward plateau propagate ion such that the problem remains essentially unresolved. A successful related to the Indo-Asian collision has been magneto stratigraphic and lithostratigraphic analysis applied to middle Miocene sediments shed into the Himalayan foreland basin. However, to fully understand the Tibetan uplift, the record needs to be extended backing time as well as to other parts of the plateau while a higher time resolution is required to assess the related paleoclimate record. The unique opportunity to accomplish these challenging goals is provided by the synergy of the applicant's extended field experience in northern Tibet with the host institution' s expertise in the new high-resolution magneto-cyclostratigraphic method. Together, we propose an integrated stratigraphic study of the best-exposed Tertiary basin of northern Tibet (the Xining bas in) usingmagneto-cyclostratigraphy in order to describe the tectonic and climatic signal in response to the Tibetan uplift. This project will provide the applicant with opportunity to pursue his research in Asia and test tectonic hypothesis formulated during his doctorate research. Already familiar with paleomagnetic techniques, applicant is seeking training in the application ofmagneto-cyclostratigraphy to APTS calibration in continental deposits, a revolutionary geochronologic method developed by the host institution. Research training sought by the applicant in interdisciplinary application of paleomagnetism involving paleoclimate is highly compatible with the host institution research program. Given the nature of the project and the trainings ought by the applicant I the choice of host institution is not only logical but also inescapable. Host institution will benefit from applicant's familiarity with Asian tectonics and extensive field experience to open a new project in Asia. Extension of the APTS to continental sediments related to Tibetan uplift and the Asian monsoon is a challenging opportunity.

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Coordinator

UTRECHT UNIVERSITY

Address

Budapestlaan 17
3584 Cd Utrecht

Netherlands

Administrative Contact

Cor A. BOSBOOM (Mr.)

Project information

Grant agreement ID: HPMF-CT-2002-02046

  • Start date

    1 September 2002

  • End date

    31 August 2004

Funded under:

FP5-HUMAN POTENTIAL

  • Overall budget:

    € 140 550

  • EU contribution

    € 140 550

Coordinated by:

UTRECHT UNIVERSITY

Netherlands