Paleoclimate Variations Spanning the Past 29–4 Ma Inferred From Lipid Biomarkers and Carbon Isotopes in the Linxia Basin, Northeast Tibetan Plateau

Climatic variation in the Linxia basin, NE Tibetan Plateau, from 13.1 to 4.3 Ma: The stable isotope record

The δC and δO values of carbonates and δCorg values, % C, and C/N ratios of organic matter from lacustrine and fluvial sediments were measured from two stratigraphic sections in the Linxia basin on the northeastern margin of the Tibetan Plateau. Diagenesis, when present, is early, limited to small spatial scales and restricted stratigraphic intervals. A strong correlation exists between dolomit...

Leaf wax stable isotopes from Northern Tibetan Plateau: Implications for uplift and climate since 15 Ma

Flexural subsidence by 29 Ma on the NE edge of Tibet from the magnetostratigraphy of Linxia Basin, China

This study provides a detailed magnetostratigraphic record of subsidence in the Linxia Basin, documenting a 27 Myr long sedimentary record from the northeastern edge of the Tibetan Plateau. Deposition in the Linxia Basin began at V29 Ma and continued nearly uninterruptedly until V1.7 Ma. Increasing rates of subsidence between 29 and 6 Ma in the Linxia Basin suggest deposition in the foredeep po...

Diets and environments of late Cenozoic mammals in the Qaidam Basin, Tibetan Plateau Evidence from stable isotopes

The timing history and driving mechanisms of C4 expansion and Tibetan uplift are hotly debated issues. Paleoenvironmental evidence from within the Tibetan Plateau is essential to help resolve these issues. Here we report results of stable C and O isotope analyses of tooth enamel samples from a variety of late Cenozoic mammals, including deer, giraffe, horse, rhino, and elephant, from the Qaidam...

Paleoaltimetry of the Tibetan Plateau from D/H ratios of lipid biomarkers