TY - JOUR
T1 - A long section of serpentinized depleted mantle peridotite
AU - Lissenberg, J
AU - McCaig, Andrew M.
AU - Lang, Susan Q.
AU - Blum, Peter
AU - Abe, Natsue
AU - Brazelton, William J.
AU - Coltan, Rémi
AU - Deans, Jeremy R
AU - Dickerson, Kristin L
AU - Godard, Marguerite
AU - John, Barbara E.
AU - Klein, Frieder
AU - Kuehn, Rebecca
AU - Lin, Kuan-Yu
AU - Liu, Haiyang
AU - Lopes, Ethan
AU - Nozaka, Toshi
AU - Parsons, Andrew
AU - Pathak, Vamdev
AU - Reagan, Mark
AU - Robare, Jordyn
AU - Savov, Ivan
AU - Schwarzenbach, Esther M.
AU - Sissmann, Olivier J.
AU - Southam, Gordon
AU - Wang, Fengping
AU - Wheat, C. Geoffrey
AU - Anderson, Lesley
AU - Treadwell, Sarah
PY - 2024/8/8
Y1 - 2024/8/8
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85200939993&partnerID=8YFLogxK
UR - https://pearl.plymouth.ac.uk/context/gees-research/article/1963/viewcontent/Lissenberg_etal_2024_ACCEPTED.pdf
U2 - 10.1126/science.adp1058
DO - 10.1126/science.adp1058
M3 - Article
SN - 0036-8075
VL - 385
SP - 623
EP - 629
JO - Science
JF - Science
IS - 6709
ER -