Dr. Sevi Modestou

I am an isotope geochemist and paleoceanographer using various isotopic tools to understand Earth's past climate. In particular, I work with 'clumped isotopes' to understand past temperature change on Earth (as well as within other planetary bodies). I also utilise stable, radiogenic and cosmogenic isotopes in the context of paleoclimatology and paleoceanography, and the evolution of the earth.

• Please visit the Pure Research Information Portal for further information
• Expedition 395 methods, Parnell-Turner, R., Briais, A., LeVay, L., Cui, Y., Di Chiara, A., Dodd, J., Jones, T., Dwyer, D., Eason, D., Friedman, S., Hemming, S., Hochmuth, K., Ibrahim, H., Jasper, C., Karatsolis, B., Lee, S., LeBlanc, D., Lindsay, M., McNamara, D., Modestou, S., Murton, B., O'Connell, S., Pasquet, G., Pearson, P., Qian, S., Rosenthal, Y., Satolli, S., Sinnesael, M., Suzuki, T., Doss, T., White, N., Wu, T., Yang Yang, A. 21 Jan 2025, Proceedings of the International Ocean Discovery Program, Texas, USA, International Ocean Discovery Program
• Expedition 395 summary, Parnell-Turner, R., Briais, A., LeVay, L., Cui, Y., Di Chiara, A., Dodd, J., Jones, T., Dwyer, D., Eason, D., Friedman, S., Hemming, S., Hochmuth, K., Ibrahim, H., Jasper, C., Karatsolis, B., Lee, S., LeBlanc, D., Lindsay, M., McNamara, D., Modestou, S., Murton, B., Oconnell, S., Pasquet, G., Pearson, P., Qian, S., Rosenthal, Y., Satolli, S., Sinnesael, M., Suzuki, T., Thulasi Doss, T., White, N., Wu, T., Yang Yang, A. 21 Jan 2025, Proceedings of the International Ocean Discovery Program, Texas, USA, International Ocean Discovery Program
• Onset of strong Iceland-Scotland overflow water 3.6 million years ago, Sinnesael, M., Karatsolis, B., Pearson, P., Briais, A., Hemming, S., LeVay, L., Dunkley Jones, T., Cui, Y., Di Chiara, A., Dodd, J., Dwyer, D., Eason, D., Friedman, S., Hanson, E., Hochmuth, K., Ibrahim, H., Jasper, C., Lee-Takeda, S., LeBlanc, D., Lindsay, M., McNamara, D., Modestou, S., Morris, M., Murton, B., OConnell, S., Pasquet, G., Qian, S., Rosenthal, Y., Satolli, S., Suzuki, T., Thulasi, T., Wade, B., White, N., Wu, T., Yang, A., Parnell-Turner, R. 9 May 2025, In: Nature Communications
• Site U1554, Parnell-Turner, R., Briais, A., LeVay, L., Cui, Y., Di Chiara, A., Dodd, J., Jones, T., Dwyer, D., Eason, D., Friedman, S., Hemming, S., Hochmuth, K., Ibrahim, H., Jasper, C., Karatsolis, B., Lee, S., LeBlanc, D., Lindsay, M., McNamara, D., Modestou, S., Murton, B., O'Connell, S., Pasquet, G., Pearson, P., Qian, S., Rosenthal, Y., Satolli, S., Sinnesael, M., Suzuki, T., Doss, T., White, N., Wu, T., Yang Yang, A. 21 Jan 2025, Proceedings of the International Ocean Discovery Program, Texas, USA, International Ocean Discovery Program
• Site U1555, Briais, A., Parnell-Turner, R., LeVay, L., Cui, Y., Di Chiara, A., Dodd, J., Dunkley Jones, T., Dwyer, D., Eason, D., Friedman, S., Hemming, S., Hochmuth, K., Ibrahim, H., Jasper, C., Karatsolis, B., Lee, S., LeBlanc, D., Lindsay, M., McNamara, D., Modestou, S., Murton, B., OConnell, S., Pasquet, G., Pearson, P., Qian, S., Rosenthal, Y., Satolli, S., Sinnesael, M., Suzuki, T., Thulasi Doss, T., White, N., Wu, T., Yang Yang, A. 21 Jan 2025, Proceedings of the International Ocean Discovery Program, Texas, USA, International Ocean Discovery Program
• Site U1562, Briais, A., Parnell-Turner, R., LeVay, L., Cui, Y., Di Chiara, A., Dodd, J., Jones, T., Dwyer, D., Eason, D., Friedman, S., Hemming, S., Hochmuth, K., Ibrahim, H., Jasper, C., Karatsolis, B., Lee, S., LeBlanc, D., Lindsay, M., McNamara, D., Modestou, S., Murton, B., O'Connell, S., Pasquet, G., Pearson, P., Qian, S., Rosenthal, Y., Satolli, S., Sinnesael, M., Suzuki, T., Doss, T., White, N., Wu, T., Yang Yang, A. 21 Jan 2025, Proceedings of the International Ocean Discovery Program, Texas, USA, International Ocean Discovery Program
• Site U1563, Briais, A., Parnell-Turner, R., LeVay, L., Cui, Y., Di Chiara, A., Dodd, J., Jones, T., Dwyer, D., Eason, D., Friedman, S., Hemming, S., Hochmuth, K., Ibrahim, H., Jasper, C., Karatsolis, B., Lee, S., LeBlanc, D., Lindsay, M., McNamara, D., Modestou, S., Murton, B., O'Connell, S., Pasquet, G., Pearson, P., Qian, S., Rosenthal, Y., Satolli, S., Sinnesael, M., Suzuki, T., Doss, T., White, N., Wu, T., Yang Yang, A. 21 Jan 2025, Proceedings of the International Ocean Discovery Program, Texas, USA, International Ocean Discovery Program
• Site U1564, Parnell-Turner, R., Briais, A., LeVay, L., Cui, Y., Di Chiara, A., Dodd, J., Jones, T., Dwyer, D., Eason, D., Friedman, S., Hemming, S., Hochmuth, K., Ibrahim, H., Jasper, C., Karatsolis, B., Lee, S., LeBlanc, D., Lindsay, M., McNamara, D., Modestou, S., Murton, B., O'Connell, S., Pasquet, G., Pearson, P., Qian, S., Rosenthal, Y., Satolli, S., Sinnesael, M., Suzuki, T., Doss, T., White, N., Wu, T., Yang Yang, A. 21 Jan 2025, Proceedings of the International Ocean Discovery Program, Texas, USA, International Ocean Discovery Program
• Site U1602, Parnell-Turner, R., Briais, A., LeVay, L., Cui, Y., Di Chiara, A., Dodd, J., Jones, T., Dwyer, D., Eason, D., Friedman, S., Hemming, S., Hochmuth, K., Ibrahim, H., Jasper, C., Karatsolis, B., Lee, S., LeBlanc, D., Lindsay, M., McNamara, D., Modestou, S., Murton, B., O'Connell, S., Pasquet, G., Pearson, P., Qian, S., Rosenthal, Y., Satolli, S., Sinnesael, M., Suzuki, T., Doss, T., White, N., Wu, T., Yang Yang, A. 21 Jan 2025, Proceedings of the International Ocean Discovery Program, Texas, USA, International Ocean Discovery Program

• Please visit the Pure Research Information Portal for further information
• Modestou - Improving seawater chemistry reconstructions using the biogenic silica archive, Modestou, S. (Principal Investigator), Natural Environment Research Council, 06/05/22 - 06/05/24, £59,696.00

I manage the NICEST Lab at Northumbria University, where we make analyse various materials, including fossils, speleothems, other carbonate minerals, soils and sediments, and water. More specifically, my lab focuses on the Δ47, δ13C and δ18O composition of carbonates, δD and δ18O of water, and the δ13C and δ15N of organic materials including sediment.