Titanium stable isotopic compositions of chondrites and ancient to modern terrestrial mantle-derived lavas

Creator(s):

Deng, Zhengbin; ORCID: 0000-0002-4141-9241
Schiller, Martin
Jackson, Matthew G
Millet, Marc-Alban
Pan, Lu
Nikolajsen, Katrine
Saji, Nikitha S
Huang, Dongyang
Bizzarro, Martin

Abstract:

We report ultra-high precision 49Ti/47Ti ratios for chondrites, ancient terrestrial mantle-derived lavas ranging from 3.8 to 2.0 Ga and modern oceanic island basalts (OIBs). Our new Ti bulk silicate Earth (BSE) estimate based on chondrites is 0.052±0.006‰ heavier than the modern upper mantle sampled by normal-type mid-ocean ridge basalts (N-MORBs). The 49Ti/47Ti ratio of Earth’s upper mantle was chondritic before 3.5 Ga and evolved to a N-MORB-like composition between ~3.5-2.7 Ga. Modern OIBs record variable 49Ti/47Ti ratios ranging from chondritic to N-MORBs compositions.

How to cite this dataset:

Deng, Z., Schiller, M., Jackson, M. G., Millet, M., Pan, L., Nikolajsen, K., Saji, N. S., Huang, D., Bizzarro, M., 2023. Titanium stable isotopic compositions of chondrites and ancient to modern terrestrial mantle-derived lavas, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA). https://doi.org/10.26022/IEDA/112942. Accessed 2026-09-20.

DOI Creation Date:

2023-05-26

License:

Creative Commons Attribution-ShareAlike 4.0 International [CC-BY-SA-4.0]

User Contributed Keyword(s):

chondrites, ancient to modern mantle-derived lavas, titanium stable isotopes

Data Available On:

2023-06-30

Resource Type:

Dataset

Dataset Information

DOI: 10.26022/IEDA/112942

Titanium stable isotopic compositions of chondrites and ancient to modern terrestrial mantle-derived lavas