I have used compound-specific hydrogen and carbon isotopes of biomarkers found in the sediments to reconstruct paleo-precipitation and paleo-vegetation.
My mission at UMass Amherst is to apply a biomarker index to reconstruct paleo-temperature in lake environments.
Publications:
- Zhaohui Zhang* , and Julian P. Sachs (2007) Hydrogen isotope fractionation in freshwater water algae: III. Theoretical interpretations. In final preparation for submission to Organic Geochemistry.
- Zhaohui Zhang* , Julian P. Sachs and Adrian Marchetti (2007) Hydrogen isotope fractionation in freshwater water algae: II. Growth effect. In final preparation for submission to Organic Geochemistry.
- Zhaohui Zhang* , Pierre Metzger and Julian P. Sachs (2007) Biomarkers evidence for the co-occurrence of three races (A, B and L) of Botryococcus braunii in Lake El Junco, Galgapagos. Organic Geochemistry, in revision.
- Zhaohui Zhang* and Julian P. Sachs (2007) Hydrogen isotope fractionation in freshwater algae: I. Variations among lipids and species. Organic Geochemistry,38, 582-608. pdf
- Julian P. Sachs, Katharina Pahnke, Rienk H. Smittenberg and Zhaohui Zhang (2007) Biomarker indicators of past climate. In Elias, S.A. (Ed.). Encyclopedia of Quaternary Science. Vol.2. Elsevier, pp. 1627-1633. pdf
- Zhaohui Zhang , Meixun Zhao, Geoffrey Eglinton, Huayu Lu and Chi-yue Huang (2006) Leaf wax lipids as paleovegetational and paleoenvironmental proxies for the Chinese Loess Plateau over the last 170kyrs. Quaternary Science Reviews, 25, 575-594. pdf
- Zhaohui Zhang* , Meixun Zhao, Xiangdong Yang, Suming Wang, Xuezhong Jiang, Frank Oldfield and Geoffrey Eglinton (2004) A hydrocarbon biomarker record for the last 40 kyr of plant input to Lake Heqing, southwestern China. Organic geochemistry, 35, 595-613. pdf
- Zhaohui Zhang* , Meixun Zhao, Huayu Lu and Anthony M. Faiia (2003) Lower temperature as the main cause of C 4 plant declines during the glacial periods on the Chinese Loess Plateau. Earth and Planetary Science Letters, 214, 467-481. pdf
- Meixun Zhao, Geoffrey Eglinton, Simon K. Haslett, Richard W., Jordan, Michael Sarnthein, and Zhaohui Zhang (2000) Marine and terrestrial biomarker records for the last 35,000 years at ODP site 658C off NW Africa. Organic Geochemistry, 31, 919-930. pdf
* Corresponding author
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