Dr. Samuele Boschi

Education

• Bachelor in Geology 2011, Università di Firenze, Italy
• Master in Geological Sciences and Technologies 2015, Università di Firenze, Italy
• Ph.D. Astrogeobiolgy 2019, Lunds Universitet, Sweden
• Postdoctoral Fellow 2024, Metal Isotope Group at Nanjing University, China

Key Research Interests

• Planetary Science
• Extraterrestrial Flux
• Meteorites
• Impact Ejecta
• Geochemistry
• Isotopes

Short Bio

I am a postdoctoral researcher focused on reconstructing the flux of extraterrestrial material to Earth during specific time. I completed my Bachelor's and Master's degrees in Geology at the Università di Firenze, specializing in sedimentology, petrography, geochemistry, and stratigraphy. My PhD aimed to reconstruct extraterrestrial matter's flux to Earth across specific time intervals, adding an astronomical dimension to Earth’s history. This was achieved through the extraction and analysis of extraterrestrial chrome-spinel grains and other proxies, such as iridium and impact spherules, in Cenozoic and mid-Ordovician sediments to trace variations in meteorite flux over time.I recently concluded a postdoc at Nanjing University, China, where my research involved petrographic and isotope analyses (K, Mg) of extraterrestrial materials, including the Chang’e-5 lunar basalts sample, Australasian tektites, and Late Eocene pancake spherules, contributing to the study of extraterrestrial mass delivery and cosmochemical isotope systems.

Main publications

1. Boschi, S., Wang, X., Hui, H., Yin, Z., Guan, Y., Hu, H., Zhang, W., Chen, J., Li, W. (2023) Compositional variability of 2.0-Ga lunar basalts at the Chang’e-5 landing site. Journal of Geophysical Research: Planets, 128, e2022JE007627.
2. An, S., Chen, J., Boschi, S., Li, W. (2023). Significantly enhanced robustness of K isotope analysis by collision cell MC-ICP-MS, and its application to the returned lunar samples by China’s Chang’e-5 project. Analytical Chemistry, v. 95, p. 2140-2145.
3. Coccioni, R., Montanari, A., Boschi, S., Catanzariti, R., Frontalini, F., Jovane, L., Kochhann, M. V. L., Pelosi, N., Sabatino, N., Savian, J. F., & Sprovieri, M. (2022). Integrated stratigraphy of the Lutetian-Priabonian pelagic section at Bottaccione (Gubbio, central Italy): A proposal for defining and positioning the Global Stratotype Section and Point (GSSP) for the base of the Bartonian Stage (Paleogene System, Eocene Series). (Special Paper of the Geological Society of America; Vol. 557). Geological Society of America.
4. Boschi, S., Schmitz, B., Martin, E., and Terfelt, F. (2020). The micrometeorite flux to Earth during the earliest Paleogene reconstructed in the Bottaccione section (Umbrian Apennines) Italy. Meteoritics & Planetary Science, v. 55, no. 7, p. 1615-1628.
5. Schmitz, B., Farley, K.A., Goderis, S., Heck, P.R., Bergström, S.M., Boschi, S., Claeys, P., Debaille, V., Dronov, A., van Ginneken, M., Harper, D.A.T., Iqbal, F., Friberg, J., Liao, S., Martin, E., Meier, M.M.M., Peucker-Ehrenbrink, B., Soens, B., Wieler, R., and Terfelt, T. (2019). An extraterrestrial trigger for the mid-Ordovician ice age: dust from the breakup of the L-chondrite parent body. Science Advances v. 5, no. 9, eaax4184.
6. Boschi, S., Schmitz, B., Terfelt, F., Ros, L., Elfman, M., Kristiansson, P., Sulas, C., Monechi, S., and Montanari, A. (2019). A.Popigai impact ejecta layer and extraterrestrial spinels recovered in a new Italian location—The Monte Vaccaro section (Marche Apennines, Italy). Geological Society of America Special Paper v. 542, p. 355-367.
7. Boschi, S., Schmitz, B., and Montanari, A. (2019). Distribution of chrome-spinel grains across the 3He anomaly of the Tortonian Stage at the Monte dei Corvi section, Italy. Geological Society of America Special Paper v. 542, p. 383-391.
8. Aguirre-Palafox, L.E., Alvarez, W., Boschi, S., Martin, E., and Schmitz, B. (2019). Zircon provenance analysis from lower Paleocene pelagic limestones of the Bottaccione Section at Gubbio (Umbria-Marche basin, Italy). Geological Society of America Special Paper v. 542, p. 159.
9. Boschi, S., Schmitz, B., Heck, P.R., Cronholm, A., Defouilloy, C., Kita, N.T., Monechi, S., Montanari, A., Rout, S.S., and Terfelt, F. (2017). Late Eocene 3He and Ir anomalies associated with ordinary chondritic spinels. Geochimica et Cosmochimica Acta, v. 204, p. 205-218.
10. Schmitz, B., Boschi, S., Cronholm, A., Heck, P.R., Monechi, S., Montanari, A., and Terfelt, F. (2015). Fragment of late Eocene Earth-impacting asteroids linked to disturbance of asteroid belt. Earth and Planetary Science Letters, v. 425, p. 77-83