Data Publication

Database of mineral compositions within the lowermost oceanic crust accreted at fast-spreading ridges (Hess Deep, East Pacific Rise, IODP Leg 345)

Basch, Valentin | Sanfilippo, Alessio | Snow, Jonathan | Loocke, Matthew | Zanetti, Alberto

GFZ Data Services

(2023)

This database contains mineral major and trace element compositions of gabbroic rocks composing the lower oceanic crust accreted at the East Pacific Rise and recovered at Hess Deep during IODP Leg 345 (Gillis et al., 2014a). Hess Deep is located at 2°15’N, 101°30’W in the Pacific Ocean, at the western tip of the Cocos-Nazca spreading centre, a westward-propagating oceanic ridge that progressively opens the oceanic lithosphere formed at the adjacent East Pacific Rise (Fig. 1a; Searle and Francheteau, 1986; Karson et al., 2002). Hess Deep is an East-West trending intraoceanic rift reaching 5200 mbsl (metres below sea level) at its deepest point (Fig. 1b,c). It is a tectonic window exposing a complete section of 1.3 Myr oceanic crust accreted at the fast-spreading East Pacific Rise (~130 mm/yr; Rioux et al., 2012; Rowan and Rowley, 2014), ranging from pillow basalts to sheeted dikes, isotropic gabbros, layered gabbros and troctolites, and upper mantle peridotites (e.g., Francheteau et al., 1990, 1992; Hekinian et al., 1993; Lissenberg et al., 2013). The gabbroic rocks included in this database are primitive in composition and range from olivine-rich troctolites to troctolites, olivine gabbros, olivine gabbronorites and gabbros.

Keywords

Originally assigned keywords

Fastspreading ridges

Lower crustal gabbros

Mineral major elements

Mineral trace elements

Primary MORB melts

EPOS

multiscale laboratories

geochemistry and microscopy

geochemistry data

MIDOCEAN RIDGES

CHEMICAL CONCENTRATIONS

IGNEOUS ROCK FORMATION

MSL enriched keywords

Earth's structure

Earth crust

oceanic crust

igneous rock - intrusive

basic intrusive

gabbro

ultrabasic intrusive

peridotite

igneous rock - extrusive

basic extrusive

basalt

minerals

silicate minerals

nesosilicates

olivine

Earth mantle

upper mantle

lithosphere

oceanic lithosphere

Source

http://dx.doi.org/10.5880/fidgeo.2023.049

Source publisher

GFZ Data Services

DOI

10.5880/fidgeo.2023.049

Authors

Basch, Valentin

0000-0002-0069-4490

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

Sanfilippo, Alessio

0000-0002-4112-3643

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy; Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy;

Snow, Jonathan

0000-0003-4244-7700

Louisiana State University, Geology & Geophysics Department, Baton Rouge, USA;

Loocke, Matthew

0000-0001-7660-2516

Louisiana State University, Geology & Geophysics Department, Baton Rouge, USA;

Zanetti, Alberto

0000-0001-9026-1519

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

Contributers

Basch, Valentin

ContactPerson

0000-0002-0069-4490

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

Basch, Valentin

DataCollector

0000-0002-0069-4490

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

Basch, Valentin

DataCurator

0000-0002-0069-4490

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

Sanfilippo, Alessio

RelatedPerson

0000-0002-4112-3643

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy; Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy;

Sanfilippo, Alessio

Researcher

0000-0002-4112-3643

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy; Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy;

Snow, Jonathan

RelatedPerson

0000-0003-4244-7700

Louisiana State University, Geology & Geophysics Department, Baton Rouge, USA;

Snow, Jonathan

Researcher

0000-0003-4244-7700

Louisiana State University, Geology & Geophysics Department, Baton Rouge, USA;

Loocke, Matthew

RelatedPerson

0000-0001-7660-2516

Louisiana State University, Geology & Geophysics Department, Baton Rouge, USA;

Loocke, Matthew

Researcher

0000-0001-7660-2516

Louisiana State University, Geology & Geophysics Department, Baton Rouge, USA;

Zanetti, Alberto

ProjectLeader

0000-0001-9026-1519

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

Zanetti, Alberto

RelatedPerson

0000-0001-9026-1519

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

Zanetti, Alberto

Researcher

0000-0001-9026-1519

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

Zanetti, Alberto

Supervisor

0000-0001-9026-1519

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

Basch, Valentin

ContactPerson

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

References

to be updated

IsSupplementTo

Deasy, R. T., Wintsch, R. P., & Meyer, R. (2021). Bulk Composition of Fast-Spreading Oceanic Crust: Insights from the Lower Cumulates of the East Pacific Rise and from Cocos–Nazca Rift Basalts, Hess Deep. Journal of Petrology, 62(10). https://doi.org/10.1093/petrology/egab019

10.1093/petrology/egab019

Cites

Francheteau, J., Armijo, R., Cheminée, J. L., Hekinian, R., Lonsdale, P., & Blum, N. (1990). 1 Ma East Pacific Rise oceanic crust and uppermost mantle exposed by rifting in Hess Deep (equatorial Pacific Ocean). Earth and Planetary Science Letters, 101(2–4), 281–295. https://doi.org/10.1016/0012-821x(90)90160-y

10.1016/0012-821X(90)90160-Y

Cites

Francheteau, J., Armijo, R., Cheminee, J. L., Hekinian, R., Lonsdale, P., & Blum, N. (1992). Dyke complex of the East Pacific Rise exposed in the walls of Hess Deep and the structure of the upper oceanic crust. Earth and Planetary Science Letters, 111(1), 109–121. https://doi.org/10.1016/0012-821x(92)90173-s

10.1016/0012-821X(92)90173-S

Cites

Gillis, K. M., Snow, J. E., Klaus, A., Abe, N., Adrião, Á. B., Akizawa, N., Ceuleneer, G., Cheadle, M. J., Faak, K., Falloon, T. J., Friedman, S. A., Godard, M., Guerin, G., Harigane, Y., Horst, A. J., Hoshide, T., Ildefonse, B., Jean, M. M., John, B. E., … Wintsch, R. P. (2013). Primitive layered gabbros from fast-spreading lower oceanic crust. Nature, 505(7482), 204–207. https://doi.org/10.1038/nature12778

10.1038/nature12778

Cites

Hekinian, R., Bideau, D., Francheteau, J., Cheminee, J. L., Armijo, R., Lonsdale, P., & Blum, N. (1993). Petrology of the East Pacific Rise crust and upper mantle exposed in Hess deep (eastern equatorial Pacific). Journal of Geophysical Research: Solid Earth, 98(B5), 8069–8094. Portico. https://doi.org/10.1029/92jb02072

10.1029/92JB02072

Cites

Lissenberg, C. J., MacLeod, C. J., Howard, K. A., & Godard, M. (2013). Pervasive reactive melt migration through fast-spreading lower oceanic crust (Hess Deep, equatorial Pacific Ocean). Earth and Planetary Science Letters, 361, 436–447. https://doi.org/10.1016/j.epsl.2012.11.012

10.1016/j.epsl.2012.11.012

Cites

Pearce, N. J. G., Perkins, W. T., Westgate, J. A., Gorton, M. P., Jackson, S. E., Neal, C. R., & Chenery, S. P. (1997). A Compilation of New and Published Major and Trace Element Data for NIST SRM 610 and NIST SRM 612 Glass Reference Materials. Geostandards Newsletter, 21(1), 115–144. Portico. https://doi.org/10.1111/j.1751-908x.1997.tb00538.x

10.1111/j.1751-908X.1997.tb00538.x

Cites

Rioux, M., Johan Lissenberg, C., McLean, N. M., Bowring, S. A., MacLeod, C. J., Hellebrand, E., & Shimizu, N. (2012). Protracted timescales of lower crustal growth at the fast-spreading East Pacific Rise. Nature Geoscience, 5(4), 275–278. https://doi.org/10.1038/ngeo1378

10.1038/ngeo1378

Cites

Rowan, C. J., & Rowley, D. B. (2014). Spreading behaviour of the Pacific-Farallon ridge system since 83 Ma. Geophysical Journal International, 197(3), 1273–1283. https://doi.org/10.1093/gji/ggu056

10.1093/gji/ggu056

Cites

van Achterbergh, E., Griffin, W. L., & Stiefenhofer, J. (2001). Metasomatism in mantle xenoliths from the Letlhakane kimberlites: estimation of element fluxes. Contributions to Mineralogy and Petrology, 141(4), 397–414. https://doi.org/10.1007/s004100000236

10.1007/s004100000236

Cites

Contact

Basch, Valentin

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

Basch, Valentin

Institute of Geoscience and Earth Resources, Italian National Research Council, Pavia, Italy;

Citiation

Basch, V., Sanfilippo, A., Snow, J., Loocke, M., & Zanetti, A. (2023). Database of mineral compositions within the lowermost oceanic crust accreted at fast-spreading ridges (Hess Deep, East Pacific Rise, IODP Leg 345) [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2023.049

Geo location(s)

Hess Deep tectonic window - IODP Site 345