A long section of serpentinized depleted mantle peridotite

Authors

• J Lissenberg, Cardiff University
• Andrew M. McCaig, University of Leeds
• Susan Q. Lang, Department of Geology and Geophysics, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, MA, 02543, USA
• Peter Blum, Texas A&M University
• Natsue Abe, Japan Agency for Marine-Earth Science and Technology
• William J. Brazelton, University of Utah
• Rémi Coltan, Geosciences Department, Ecole Normale Supérieure; Paris
• Jeremy R Deans, School of Biological, Environmental, and Earth Sciences, University of Southern Mississippi
• Kristin L Dickerson, Department of Earth and Planetary Sciences, University of California
• Marguerite Godard, Université de Montpellier
• Barbara E. John, University of Wyoming
• Frieder Klein, Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution
• Rebecca Kuehn, Institute of Geosciences and Geography, Martin-Luther-University Halle-Wittenberg
• Kuan-Yu Lin, Department of Earth Sciences, University of Delaware
• Haiyang Liu, Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences
• Ethan Lopes, Department of Geophysics, Stanford University
• Toshi Nozaka, Department of Earth Sciences, Okayama University
• Andrew Parsons, School of Geography, Earth and Environmental Sciences
• Vamdev Pathak, Department of Geology, Central University of Punjab
• Mark Reagan, Department of Earth and Environmental Sciences, University of Iowa
• Jordyn Robare, School of Molecular Sciences, Arizona State University
• Ivan Savov, School of Earth and Environment, University of Leeds
• Esther M. Schwarzenbach, Department of Geosciences, University of Fribourg
• Olivier J. Sissmann, IFP Energies Nouvelles; Paris
• Gordon Southam, School of the Environment, The University of Queensland
• Fengping Wang, School of Oceanography, Shanghai Jiao Tong University, Shanghai
• C. Geoffrey Wheat, Global Undersea Research Unit, University of Alaska Fairbanks
• Lesley Anderson, Arctic Research Support and Logistics, Washington DC
• Sarah Treadwell, Department of Communication, University of North Dakota and Blue Marble Space Institute of Science

ORCID

• Andrew Parsons: 0000-0001-7538-9418

Abstract

The upper mantle is critical for our understanding of terrestrial magmatism, crust formation, and element cycling between Earth’s solid interior, hydrosphere, atmosphere, and biosphere. Mantle composition and evolution have been primarily inferred by surface sampling and indirect methods. We recovered a long (1268-meter) section of serpentinized abyssal mantle peridotite interleaved with thin gabbroic intrusions. We find depleted compositions with notable variations in mantle mineralogy controlled by melt flow. Dunite zones have predominantly intermediate dips, in contrast to the originally steep mantle fabrics, indicative of oblique melt transport. Extensive hydrothermal fluid-rock interaction is recorded across the full depth of the core and is overprinted by oxidation in the upper 200 meters. Alteration patterns are consistent with vent fluid composition in the nearby Lost City hydrothermal field.

DOI Link

10.1126/science.adp1058

Publication Date

2024-08-08

Publication Title

Science

Volume

385

Issue

6709

ISSN

0036-8075

Acceptance Date

2024-06-18

Deposit Date

2024-07-22

Additional Links

https://www.scopus.com/pages/publications/85200939993

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

First Page

623

Last Page

629

Recommended Citation

Lissenberg, J., McCaig, A., Lang, S., Blum, P., Abe, N., Brazelton, W., Coltan, R., Deans, J., Dickerson, K., Godard, M., John, B., Klein, F., Kuehn, R., Lin, K., Liu, H., Lopes, E., Nozaka, T., Parsons, A., Pathak, V., Reagan, M., Robare, J., Savov, I., Schwarzenbach, E., Sissmann, O., Southam, G., Wang, F., Wheat, C., Anderson, L., & Treadwell, S. (2024) 'A long section of serpentinized depleted mantle peridotite', Science, 385(6709), pp. 623-629. Available at: 10.1126/science.adp1058