Response to Comment on "Dying in the Sun: Direct evidence for elevated UV-B radiation at the end-Permian mass extinction".
Journal
Science advances
ISSN: 2375-2548
Titre abrégé: Sci Adv
Pays: United States
ID NLM: 101653440
Informations de publication
Date de publication:
25 08 2023
25 08 2023
Historique:
medline:
28
8
2023
pubmed:
25
8
2023
entrez:
25
8
2023
Statut:
ppublish
Résumé
Seddon and Zimmermann have raised questions about the evidence for increased UV-B flux across the end-Permian mass extinction (EPME) that was presented in our recent study, specifically regarding the measurement of UV-B-absorbing compound (UAC) levels in fossil pollen. We respond to these points, arguing that the comparison of FTIR spectra of >250 million-year-old Permian fossil pollen with ~700-year-old subfossil pollen is not valid and that negligible nonrandom interference derived from water vapor fluctuations during data generation cannot coincidentally produce a substantial UAC peak during the EPME. Furthermore, we refute the suggestion that the measured aromatic peak at 1600 cm
Identifiants
pubmed: 37624883
doi: 10.1126/sciadv.adj6309
pmc: PMC10456830
doi:
Substances chimiques
fluoromethyl 2,2-difluoro-1-(trifluoromethyl)vinyl ether
58109-34-5
Ethers
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
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