The mean composition of ocean ridge basalts
Planetary Science Institute · Harvard University · +5 more institutions
Abstract
Abstract The mean composition of mid‐ocean ridge basalts (MORB) is determined using a global data set of major elements, trace elements, and isotopes compiled from new and previously published data. A global catalog of 771 ridge segments, including their mean depth, length, and spreading rate enables calculation of average compositions for each segment. Segment averages allow weighting by segment length and spreading rate and reduce the bias introduced by uneven sampling. A bootstrapping statistical technique provides rigorous error estimates. Based on the characteristics of the data, we suggest a revised nomenclature for MORB. “ALL MORB” is the total composition of the crust apart from back‐arc basins, N‐MORB…
Citation impact
- FWCI
- 26.51
- Percentile
- 100%
- References
- 69
Authors
5- AGA. GaleCorresponding
Planetary Science Institute, Harvard University
- CAC. A. Dalton
Boston University, University of Massachusetts Boston
- CHC. H. Langmuir
Planetary Science Institute, Harvard University
- YSYongjun Su
Lamont-Doherty Earth Observatory, Columbia University
- JSJean‐Guy Schilling
University of Rhode Island
Topics & keywords
- Basalt
- Geology
- Mantle (geology)
- Mid-ocean ridge
- Geochemistry
- Ridge
- Island arc
- Crust
- Life below water