Articles | Volume 35, issue 6
https://doi.org/10.5194/ejm-35-987-2023
https://doi.org/10.5194/ejm-35-987-2023
Research article
 | 
16 Nov 2023
Research article |  | 16 Nov 2023

Contact metamorphic reactions and fluid–rock interactions related to magmatic sill intrusion in the Guaymas Basin

Alban Cheviet, Martine Buatier, Flavien Choulet, Christophe Galerne, Armelle Riboulleau, Ivano Aiello, Kathleen M. Marsaglia, and Tobias W. Höfig

Related authors

Impact of permeability evolution in igneous sills on hydrothermal flow and hydrocarbon transport in volcanic sedimentary basins
Ole Rabbel, Jörg Hasenclever, Christophe Y. Galerne, Olivier Galland, Karen Mair, and Octavio Palma
Solid Earth, 14, 625–646, https://doi.org/10.5194/se-14-625-2023,https://doi.org/10.5194/se-14-625-2023, 2023
Short summary
U–Pb dating of middle Eocene–Pliocene multiple tectonic pulses in the Alpine foreland
Luca Smeraglia, Nathan Looser, Olivier Fabbri, Flavien Choulet, Marcel Guillong, and Stefano M. Bernasconi
Solid Earth, 12, 2539–2551, https://doi.org/10.5194/se-12-2539-2021,https://doi.org/10.5194/se-12-2539-2021, 2021
Short summary

Related subject area

Fluid-rock interaction
Pervasive carbonation of peridotite to listvenite (Semail Ophiolite, Sultanate of Oman): clues from iron partitioning and chemical zoning
Thierry Decrausaz, Marguerite Godard, Manuel D. Menzel, Fleurice Parat, Emilien Oliot, Romain Lafay, and Fabrice Barou
Eur. J. Mineral., 35, 171–187, https://doi.org/10.5194/ejm-35-171-2023,https://doi.org/10.5194/ejm-35-171-2023, 2023
Short summary

Cited articles

Aarnes, I., Svensen, H., Connolly, J. A. D., and Podladchikov, Y. Y.: How contact metamorphism can trigger global climate changes: Modeling gas generation around igneous sills in sedimentary basins, Geochim. Cosmochim. Ac., 74, 7179–7195, https://doi.org/10.1016/j.gca.2010.09.011, 2010. 
Aarnes, I., Svensen, H., Polteau, S., and Planke, S.: Contact metamorphic devolatilization of shales in the Karoo Basin, South Africa, and the effects of multiple sill intrusions, Chem. Geol., 281, 181–194, https://doi.org/10.1016/j.chemgeo.2010.12.007, 2011a. 
Aarnes, I., Svensen, H., Polteau, S., and Planke, S.: Contact metamorphic devolatilization of shales in the Karoo Basin, South Africa, and the effects of multiple sill intrusions, Chem. Geol., 281, 181–194, https://doi.org/10.1016/j.chemgeo.2010.12.007, 2011b. 
Arndt, N. T. and Jenner, G. A.: Crustally contaminated komatiites and basalts from Kambalda, Western Australia, Chem. Geol., 56, 229–255, https://doi.org/10.1016/0009-2541(86)90006-9, 1986. 
Aubourg, C., Techer, I., Geoffroy, L., Clauer, N., and Baudin, F.: Detecting the thermal aureole of a magmatic intrusion in immature to mature sediments: a case study in the East Greenland Basin (73 N), Geophys. J. Int., 196, 160–174, https://doi.org/10.1093/gji/ggt396, 2014. 
Download
Short summary
The present study is based on sample chemical and mineralogical analyses of oceanic sediment and rock that were collected in the Guaymas Basin during IODP Expedition 385. The contact aureoles are not only affected by maturation of organic matter and dehydration reaction, but mineralogical reactions concern all sediment components (silicates, sulfides, carbonates, organic matter) and can be the result of the combination of different stages of alteration during and after the sill emplacement.