Corrigendum to “Young oxygenation of the Archean Keonjhar Palaeosol, India, from 138La-138Ce chronometry” by Pfennig et al., 2025

M.L. Pfennig, J.J. Pakulla, E. Hasenstab-Dübeler, F. Wombacher, J. Jodder, A. Hofmann, C. Münker; M.L. Pfennig; J.J. Pakulla; E. Hasenstab-Du00fcbeler; F. Wombacher

by admin | Mar 12, 2025 | vol34

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Corrigendum to “Young oxygenation of the Archean Keonjhar Palaeosol, India, from ¹³⁸La-¹³⁸Ce chronometry” by Pfennig et al., 2025

M.L. Pfennig¹,

¹Institute of Geology and Mineralogy, University of Cologne, Germany

J.J. Pakulla¹,

¹Institute of Geology and Mineralogy, University of Cologne, Germany

E. Hasenstab-Dübeler¹,

¹Institute of Geology and Mineralogy, University of Cologne, Germany

F. Wombacher¹,

¹Institute of Geology and Mineralogy, University of Cologne, Germany

J. Jodder^2,3,4,

²Centre for Planetary Habitability (PHAB), University of Oslo, Norway
³Evolutionary Studies Institute, University of the Witwatersrand, South Africa
⁴Department of Geology, University of Johannesburg, South Africa

A. Hofmann^4,5,

⁴Department of Geology, University of Johannesburg, South Africa
⁵School of Earth, Ocean, and Climate Sciences, IIT, Bhubaneswar, India

C. Münker¹

¹Institute of Geology and Mineralogy, University of Cologne, Germany

Affiliations | Corresponding Author | Cite as

Geochemical Perspectives Letters v34 | https://doi.org/10.7185/geochemlet.2503cor
Received 8 February 2025 | Accepted 10 February 2025 | Published 12 March 2025

Published by the European Association of Geochemistry
under Creative Commons License CC BY-NC-ND 4.0



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Corrigendum

Correction to: Geochemical Perspectives Letters 33, 51–55, doi: 10.7185/geochemlet.2503, published 7 February 2025.

Corrections to Tables S-5 and S-6 in the Supplementary Information. After publication of our work, we identified errors with quoted significant digits for ¹⁷⁶Hf/¹⁷⁷Hf and ¹⁴³Nd/¹⁴⁴Nd ratios listed in Tables S-5 and S-6, which have now been corrected. Also, we identified a typing error in Table S-5 for the ¹⁷⁶Hf/¹⁷⁷Hf ratio of sample SIN17A (originally reported as 0.28096 and now corrected to 0.280898), and we added 2σ internal errors for ¹³⁸Ce/¹³⁶Ce, ¹⁷⁶Hf/¹⁷⁷Hf and ¹⁴³Nd/¹⁴⁴Nd ratios in Tables S-5 and S-6. The corrected tables are available for download from the Supplementary Information in the online version of the original article.

Table S-5 MC-ICP-MS data for isotope compositions and parent/daughter ratios obtained by isotope dilution. La, Ce, Sm, Nd, Lu and Hf concentrations are given in μg/g. The external reproducibility for the measured ¹³⁸Ce/¹³⁶Ce ratios amounts to ±30 ppm (2RSD) and the external long-term reproducibility of ¹⁷⁶Hf/¹⁷⁷Hf and ¹⁴³Nd/¹⁴⁴Nd ratios amounts to ±40 ppm (2RSD) (Marien et al., 2019).

dig.no	in.w. (mg)	elements	SIN17A 0 m	SIN17B 2 m	SIN17C 4 m	SIN17D 5 m	SIN17E 7 m	SIN17F1 -	SIN17F2 -	SIN17F3 -	SIN17F4
1 (IC)	200	¹³⁸Ce/¹³⁶Ce	1.33751	1.33745	1.33756	1.33752	1.33762	1.33752
		2σ internal	±3	±3	±3	±3	±3	±3
		¹³⁸Ce/¹³⁶Ce_{(3.29 Ga)}	1.33689	1.33661	1.33517	1.33528	1.33583	1.33487
		ϵCe	4.7	4.3	5.1	4.8	5.5	4.8
		ϵCe_{(3.29 Ga)}	11	8.9	−1.8	−1.0	3.0	−4.1
		2SE	±0.3	±0.3	±0.3	±0.3	±0.2	±0.3
2 (ID1)	80	La [ppm]									40.2
		Ce [ppm]									76.7
		¹³⁸La/¹³⁶Ce									0.2564
		Lu [ppm]	0.10	0.08	0.09	0.12	0.14				0.09
		Hf [ppm]	3.45	3.36	3.82	4.93	4.93				3.96
		¹⁷⁶Lu/¹⁷⁷Hf	0.003933	0.003585	0.003322	0.003505	0.003888				0.003148
		¹⁷⁶Hf/¹⁷⁷Hf	0.280898	0.280893	0.280921	0.280906	0.280898				0.280912
		2σ internal	±5	±5	±5	±5	±4				±6
		¹⁷⁶Hf/¹⁷⁷Hf_{(3.29 Ga)}	0.280713	0.280666	0.280710	0.280684	0.280652				0.280713
		ϵHf	−64	−67	−66	−66	−67				−66
		ϵHf_{(3.29 Ga)}	1.9	0.3	1.8	0.9	−0.2				1.9
		2SE	±0.3	±0.3	±0.3	±0.3	±0.3				±0.3
3 (ID2)	80	La [ppm]	31.7	33.1	32.7	50.2	62.1	42.3	44.6	44.1
		Ce [ppm]	51.6	46.2	50.2	84.0	66.5	77.0	76.2	76.9
		¹³⁸La/¹³⁶Ce	0.2985	0.3481	0.3163	0.2901	0.4538	0.2663	0.2840	0.2783
		Sm [pm]	2.40	2.72	1.22	2.79	2.73	3.91	4.40	4.34
		Nd [ppm]	15.6	17.3	12.6	27.4	25.2	24.8	27.1	26.9
		¹⁴⁷Sm/¹⁴⁴Nd	0.09272	0.09464	0.05841	0.06168	0.06538	0.09514	0.09786	0.09733
		¹⁴³Nd/¹⁴⁴Nd	0.510431	0.510430	0.510006	0.510057	0.510082	0.510413	0.510400	0.510401
		2σ internal	±8	±13	±8	±8	±9	±5	±5	±5
		¹⁴³Nd/¹⁴⁴Nd_{(3.29 Ga)}	0.508415	0.508372	0.508735	0.508716	0.508660	0.508344	0.508271	0.508284
		ϵNd	−43	−43	−51	−50	−50	−43	−44	−43
		ϵNd_{(3.29 Ga)}	0.9	0.1	7.2	6.9	5.8	−0.5	−1.9	−1.6
		2SE	±0.4	±0.4	±0.4	±0.4	±0.4	±0.4	±0.4	±0.4

Table S-6 MC ICP-MS data for reference materials BCR-2, AGV-2 and JG-1 including digestion no. (dig. no.) and initial sample weight (in. w.). La, Ce, Sm, Nd, Lu and Hf concentrations are given in μg/g. All reference values are from GeoREM database, except values for La and Ce concentrations and La and Ce isotope ratios for JG-1 and BCR-2, which are from Schnabel et al. (2017).

dig. no.	in.w. (mg)	elements	BCR-2	BCR-2 ref. ¹⁾ ²⁾	AGV-2	AGV-2 ref. ¹⁾	JG-1	JG-1 ref. ²⁾
1 (IC)	200	¹³⁸Ce/¹³⁶Ce			1.33684	1.33684	1.33700	1.31579
		2σ internal			±4		±3
2 (ID1)	80	La [ppm]	25.0	25.0	37.9	38.2
		Ce [ppm]	53.2	53.2	69.0	69.4
		¹³⁸La/¹³⁶Ce	0.2295	0.2279	0.2690	0.2630
		Lu [ppm]	0.499	0.503	0.247	0.251
		Hf [ppm]	4.93	4.90	5.21	5.14
		¹⁷⁶Lu/¹⁷⁷Hf	0.01437	0.01458	0.006723	0.006931
		¹⁷⁶Hf/¹⁷⁷Hf	ND		0.282924	0.282947
		2σ internal			±11
3 (ID2)	80	La [ppm]	23.9	25.0	ND
		Ce [ppm]	53.3	53.2	69.9	69.4
		¹³⁸La/¹³⁶Ce	0.2183	0.2279	ND
		Sm [pm]	6.06	6.55	5.09	5.51
		Nd [ppm]	26.5	28.0	28.2	30.5
		¹⁴⁷Sm/¹⁴⁴Nd	0.1381	0.1383	0.1089	0.1092
		¹⁴³Nd/¹⁴⁴Nd	0.512629	0.512626	0.512789	0.512789
		2σ internal	±3		±6

ND = not determined ¹⁾ GeoREM (http://georem.mpch-mainz.gwdg.de) ²⁾ Schnabel et al. (2017)

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