This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help.
Summary
DescriptionCarbon 13 and time scale during the Ordovician.png
English: This shows the change in carbon 13 concentration, and sea surface temperatures over the entire Ordovician period.
"Carbon isotopic (δ13Ccarb) variations in seawater through the Ordovician alongwith the conodont-apatite based tropical seawater temperature trend from Trotter et al. (2008). Ordovician δ13Ccarb data replotted from Gao et al. (1996), Kump et al. (1999), Saltzman (2005), and Saltzman and Young (2005). Timescale (with new global stage names; H, Hirnantian), major biodiversity and extinction intervals are from Webby et al. (2004)."
Date
Source
"Did changes in atmopspheric CO2 coincide with latest Ordovician glacial-interglacial cycles"; Palaeogeography, Palaeoclimatology, Palaeoecology; 2010; pg. 337
Author
Seth A. Young, Matthew R. Saltzman, William I. Ausich, André Desrochers, Dimitri Kaljo
Licensing
Public domainPublic domainfalsefalse
This work is ineligible for copyright and therefore in the public domain because it consists entirely of information that is common property and contains no original authorship.
Captions
This shows the change in carbon 13 concentration, and sea surface temperatures over the entire Ordovician period.
Items portrayed in this file
depicts
inception
2 March 2010
MIME type
image/png
checksum
3df9066a80327d23f10a09e054dc5fa34c23d2ef
determination method: SHA-1
data size
250,088 byte
height
1,045 pixel
width
881 pixel
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time
Thumbnail
Dimensions
User
Comment
current
09:43, 26 September 2019
881 × 1,045 (244 KB)
K'm
User created page with UploadWizard
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):