Intracrystalline Reaction-Induced Cracking in Olivine Evidenced by Hydration and Carbonation Experiments

Autor: Romain Lafay, German Montes-Hernandez, François Renard, Pierre Vonlanthen

Publikováno v: Minerals, Vol 8, Iss 9, p 412 (2018)

In order to better understand the microtextural changes associated with serpentinization reactions, natural millimeter-sized olivine grains were experimentally reacted with alkaline NaOH and NaHCO3 solutions at a temperature of 200 °C and for durati

Externí odkaz: https://doaj.org/article/c592b580ba4845d5b0b253a6bac6c16a

Protracted hydrothermal alteration recorded at the microscale in the Chenaillet ophicarbonates (Western Alps): Insights from in situ δ18O thermometry in serpentine, carbonate and magnetite

Autor: Noriko T. Kita, Romain Lafay, John W. Valley, Maria Rosa Scicchitano, William O. Nachlas

Publikováno v: Geochimica et Cosmochimica Acta

The study of serpentinites and ophicarbonates from ophiolitic terrains provides a three-dimensional perspective on the hydration and carbonation processes affecting modern oceanic lithosphere. The Chenaillet ophiolite (western Alps) is interpreted as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6c3c9011af38cb7a83216e982d1227a
https://doi.org/10.1016/j.gca.2021.11.025

Metasomatism of the off-cratonic lithospheric mantle beneath Hangay Dome, Mongolia: Constraints from trace-element modelling of lherzolite xenoliths

Autor: Yoshiyuki Iizuka, Victor Kovach, V. V. Yarmolyuk, Chia-Ju Chieh, Romain Lafay, Kuo-Lung Wang, Fatma Kourim, Nick Dygert, Andreas Beinlich, Katsuyoshi Michibayashi

Publikováno v: Lithos
Lithos, Elsevier, 2021, 400-401, pp.106407. ⟨10.1016/j.lithos.2021.106407⟩

Interactions of hydrous fluid and melt with dry mantle rocks are known to result in metasomatic alteration of the lithospheric mantle. Here we investigate such interactions that occurred beneath the Hangay Dome, Mongolia, in 22 mantle xenoliths, whic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0977810d53a03e9ccd62ae1351dbec69
https://hal.archives-ouvertes.fr/hal-03402707

Mass transfer into the leading edge of the mantle wedge: Initial results from Oman Drilling Project Hole BT1B

Autor: Peter B Kelemen, Juan Carlos de Obeso, James Andrew Leong, Marguerite Godard, Keishi Okazaki, Alissa Jeanne Kotowski, Craig Manning, Eric T Ellison, Manuel D Menzel, Janos Urai, Greg Hirth, Matthew Rioux, Daniel Fritz Stockli, Romain Lafay, Andreas Beinlich, Jude A. Coggon, Nehal H. Warsi, Juerg Matter, Damon Teagle, Katsuyoshi Michibayashi, Eiichi Takazawa, Zaher Al Sulaimani, Michelle Harris

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44228e98249d65bcbcc1a77dfcdca582
https://doi.org/10.1002/essoar.10507370.1

Fossil oceanic core complexes in the Alps. New field, geochemical and isotopic constraints from the Tethyan Aiguilles Rouges Ophiolite (Val d’Hérens, Western Alps, Switzerland)

Autor: Othmar Müntener, Paola Manzotti, Romain Lafay, Carl Spandler, Thierry Decrausaz

Publikováno v: Swiss Journal of Geosciences
Swiss Journal of Geosciences, Springer, 2021, 114 (1), ⟨10.1186/s00015-020-00380-4⟩
Swiss Journal of Geosciences, Vol 114, Iss 1, Pp 1-27 (2021)

Exhumation of basement rocks on the seafloor is a worldwide feature along passive continental margins and (ultra-) slow-spreading environments, documented by dredging, drilling or direct observations by diving expeditions. Complementary observations

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::382bba58674da7e9b26fc6c847cf17ac
https://doi.org/10.1186/s00015-020-00380-4