Publications

Holmfred, E., Chamberlain, P., & Stürup, S. (2025). Revealing the stable d2H, d13C, and d18O isotopic patterns of ibuprofen drug products and commonly used pharmaceutical excipients. Molecular Pharmaceutics, 22(8), 4879-4889. https://doi.org/doi.org/10.1021/acs.molpharmaceut.5c00522

Chamberlain, P., Methner, K., Holmfred, E., Ibarra, D., Cheng, X., & Mulch, A. (2025). Miocdene triple oxygen isotope paleoaltimetry demonstrates diachronous uplift of the Cascades. American Journal of Science.

Lloyd, M., Ibarra, D., Pester, N., Seyfried, W., & Chamberlain, P. (2025). Triple oxygen isotope composition of the Oman ophiolite and modern hydrothermal fluids: implications for the oxygen isotope balance of the ocean (in review). Geochimica Cosmochimica Acta.

Methner, K., Ibarra, D., Mulch, A., Teyssier, C., & Chamberlain, P. (2025). Triple oxygen isotope paleoaltimetry of the Kettle Metamorphic Core Complex (in review). Geochemistry, Geophysics, Geosystems.

Holmfred, E., Alrijjal, A., Chamberlain, P., Maher, K., & Stürup, S. (2024). Determination of trace elements in ibuprofen drug products using microwave-assisted acid digestion and inductively coupled plasma-mass spectrometry. Heliyon, 10(1). https://doi.org/doi.org/10.1016/j.heliyon.2023.e23566

Ibarra, D., Dao, J., Gao, Y., Lang, X., Duan, P., Gao, Z., Chen, J., Methner, K., Sha, L., Han, X., Zhu, D., Li, Y., Tang, J., Cheng, H., & Chamberlain, P. (2023). High-elevation Tibetan Plateau before India–Eurasia collision recorded by triple oxygen isotopes. Nature Geosciences. https://doi.org/10.1038/s41561-023-01243-x

Şekercioğlu, C., Fullwood, M., Cerling, T., Brenes, F., Daily, G., Ehrlich, P., Chamberlain, P., & Newsome, S. (2023). Using stable isotopes to measure the dietary responses of Costa Rican forest birds to agricultural countryside. Frontiers in Ecology and Evolution, 11. https://doi.org/10.3389/fevo.2023.1086616

Kukla, T., Rugenstein, J., Ibarra, D., Winnick, M., Stromberg, C., & Chamberlain, C. P. (2022). Drier winters linked to Cenozoic open habitat expansion in North America . AGU Advances, 3. https://doi.org/10.1029/2021AV000566

Kukla, T., Rugenstein, J., Driscoll, E., Ibarra, D., & Chamberlain, P. (2022). The PATCH Lab v.1.0: A database and workspace for Cenozoic terrestrial paleoclimate and environmental reconstruction. . American Journal of Science, 322, 1089-1123.

Ibarra, D. ., Yanchilina, A. ., Lloyd, M., Methner, K., Chamberlain, P., Yam, R., Semesh, A., & Stolper, D. (2022). Triple oxygen isotope systematics of diatom opal-A to opal-CT to microquartz in deep sea sediments. Geochimica Cosmochimica Acta, , 320, 304-323.

Clumped isotope constraints on warming and precipitation seasonality in Mongolia sue to Altai uplift. (2021).

High elevation southern Tibet prior to India-Asia Collision. (2021).

High-resolution paleotopography of the John Day region, Oregon, USA. (2021).

Reconstructing past elevations from triple oxygen isotopes of lacustrine chert: Application to the Eocene Nevadoplano, Elko Basin, Nevada, USA. (2021).

Terrestrial climate in mid-latitude East Asia from the latest Cretaceous to the earliest Paleogene: A multiproxy record from the Songliao Basin in northeastern China. (2021).

The resilience of Amazon tree cover to past and present drying. (2021).

Triple oxygen isotope paleoaltimetry of crystalline rocks. (2021).

Warm high-elevation Mid-latitudes during the Miocene Climatic Optimum: Paleosol clumped isotope temperatures from the Northern Rocky Mountain USA. (2021).

Constraints on surface temperatures 3.4 billion years ago based on triple oxygen isotopes of cherts from the Barberton Greenstone Belt South Africa, and the problem of sample selection. (2020).

Middle Miocene long-term continental temperature change in and out of pace with marine climate records. (2020).