Fault-controlled hydration of the upper mantle during continental rifting

Research output: Contribution to journalArticlepeer-review

Standard

Fault-controlled hydration of the upper mantle during continental rifting. / Bayracki, Gaye; Minshull, Tim; Sawyer, Dale; Reston, Timothy; Klaeschen, Dirk; Papenberg, Cord; Ranero, Cesar; Bull, Jonathan; Davy, Richard; Shillington, Donna; Perez Gussinye, Marta; Morgan, Julia.

In: Nature Geoscience, Vol. 9, 05.2016, p. 384-388.

Research output: Contribution to journalArticlepeer-review

Harvard

Bayracki, G, Minshull, T, Sawyer, D, Reston, T, Klaeschen, D, Papenberg, C, Ranero, C, Bull, J, Davy, R, Shillington, D, Perez Gussinye, M & Morgan, J 2016, 'Fault-controlled hydration of the upper mantle during continental rifting', Nature Geoscience, vol. 9, pp. 384-388. https://doi.org/10.1038/ngeo2671

APA

Bayracki, G., Minshull, T., Sawyer, D., Reston, T., Klaeschen, D., Papenberg, C., Ranero, C., Bull, J., Davy, R., Shillington, D., Perez Gussinye, M., & Morgan, J. (2016). Fault-controlled hydration of the upper mantle during continental rifting. Nature Geoscience, 9, 384-388. https://doi.org/10.1038/ngeo2671

Vancouver

Bayracki G, Minshull T, Sawyer D, Reston T, Klaeschen D, Papenberg C et al. Fault-controlled hydration of the upper mantle during continental rifting. Nature Geoscience. 2016 May;9:384-388. https://doi.org/10.1038/ngeo2671

Author

Bayracki, Gaye ; Minshull, Tim ; Sawyer, Dale ; Reston, Timothy ; Klaeschen, Dirk ; Papenberg, Cord ; Ranero, Cesar ; Bull, Jonathan ; Davy, Richard ; Shillington, Donna ; Perez Gussinye, Marta ; Morgan, Julia. / Fault-controlled hydration of the upper mantle during continental rifting. In: Nature Geoscience. 2016 ; Vol. 9. pp. 384-388.

Bibtex

@article{db5984f9cd054f2ebac94bb3deba2250,
title = "Fault-controlled hydration of the upper mantle during continental rifting",
abstract = "Water and carbon are transferred from the ocean to the mantle in a process that alters mantle peridotite to create serpentinite and supports diverse ecosystems1. Serpentinized mantle rocks are found beneath the sea floor at slow- to ultraslow-spreading mid-ocean ridges1 and are thought to be present at about half the world{\textquoteright}s rifted margins2,3. Serpentinite is also inferred to exist in the downgoing plate at subduction zones4, where it may trigger arc magmatism or hydrate the deep Earth.Water is thought to reach the mantle via active faults3,4. Here we show that serpentinization at the rifted continental margin oshore from western Spain was probably initiated when the whole crust cooled to become brittle and deformation was focused along large normal faults.We use seismic tomography to image the three-dimensional distribution of serpentinization in the mantle and find that the local volume of serpentinite beneath thinned, brittle crust is related to the amount of displacement along each fault.This implies that seawater reaches the mantle only when the faults are active. We estimate the fluid flux along the faults and find it is comparable to that inferred for mid-ocean ridge hydrothermal systems. We conclude that brittle processes in the crust may ultimately control the global flux of sea water into the Earth.",
author = "Gaye Bayracki and Tim Minshull and Dale Sawyer and Timothy Reston and Dirk Klaeschen and Cord Papenberg and Cesar Ranero and Jonathan Bull and Richard Davy and Donna Shillington and {Perez Gussinye}, Marta and Julia Morgan",
year = "2016",
month = may,
doi = "10.1038/ngeo2671",
language = "English",
volume = "9",
pages = "384--388",
journal = "Nature Geoscience",
issn = "1752-0894",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Fault-controlled hydration of the upper mantle during continental rifting

AU - Bayracki, Gaye

AU - Minshull, Tim

AU - Sawyer, Dale

AU - Reston, Timothy

AU - Klaeschen, Dirk

AU - Papenberg, Cord

AU - Ranero, Cesar

AU - Bull, Jonathan

AU - Davy, Richard

AU - Shillington, Donna

AU - Perez Gussinye, Marta

AU - Morgan, Julia

PY - 2016/5

Y1 - 2016/5

N2 - Water and carbon are transferred from the ocean to the mantle in a process that alters mantle peridotite to create serpentinite and supports diverse ecosystems1. Serpentinized mantle rocks are found beneath the sea floor at slow- to ultraslow-spreading mid-ocean ridges1 and are thought to be present at about half the world’s rifted margins2,3. Serpentinite is also inferred to exist in the downgoing plate at subduction zones4, where it may trigger arc magmatism or hydrate the deep Earth.Water is thought to reach the mantle via active faults3,4. Here we show that serpentinization at the rifted continental margin oshore from western Spain was probably initiated when the whole crust cooled to become brittle and deformation was focused along large normal faults.We use seismic tomography to image the three-dimensional distribution of serpentinization in the mantle and find that the local volume of serpentinite beneath thinned, brittle crust is related to the amount of displacement along each fault.This implies that seawater reaches the mantle only when the faults are active. We estimate the fluid flux along the faults and find it is comparable to that inferred for mid-ocean ridge hydrothermal systems. We conclude that brittle processes in the crust may ultimately control the global flux of sea water into the Earth.

AB - Water and carbon are transferred from the ocean to the mantle in a process that alters mantle peridotite to create serpentinite and supports diverse ecosystems1. Serpentinized mantle rocks are found beneath the sea floor at slow- to ultraslow-spreading mid-ocean ridges1 and are thought to be present at about half the world’s rifted margins2,3. Serpentinite is also inferred to exist in the downgoing plate at subduction zones4, where it may trigger arc magmatism or hydrate the deep Earth.Water is thought to reach the mantle via active faults3,4. Here we show that serpentinization at the rifted continental margin oshore from western Spain was probably initiated when the whole crust cooled to become brittle and deformation was focused along large normal faults.We use seismic tomography to image the three-dimensional distribution of serpentinization in the mantle and find that the local volume of serpentinite beneath thinned, brittle crust is related to the amount of displacement along each fault.This implies that seawater reaches the mantle only when the faults are active. We estimate the fluid flux along the faults and find it is comparable to that inferred for mid-ocean ridge hydrothermal systems. We conclude that brittle processes in the crust may ultimately control the global flux of sea water into the Earth.

U2 - 10.1038/ngeo2671

DO - 10.1038/ngeo2671

M3 - Article

VL - 9

SP - 384

EP - 388

JO - Nature Geoscience

JF - Nature Geoscience

SN - 1752-0894

ER -