https://community.esri.com/t5/k12-discussion/sea-floor-crustal-age-map-question/m-p/1660291#M362 <DIV>I'm confused. The area at the mid-atlantic ridge and other mid-ocean ridges is the darkest color. According to the key, the darker colors have the high higher crustal age. The mid-ocean ridges are where new rock is forming. Am I mistaken or is the key / map backwards?</DIV> <DIV>&nbsp;</DIV> <DIV>&nbsp;</DIV> <DIV> <DIV class="">&nbsp;</DIV> <P>&nbsp;</P> </DIV> Mon, 17 Nov 2025 18:55:13 GMT LindaKronenbitter 2025-11-17T18:55:13Z https://community.esri.com/t5/k12-discussion/sea-floor-crustal-age-map-question/m-p/1660291#M362 <DIV>I'm confused. The area at the mid-atlantic ridge and other mid-ocean ridges is the darkest color. According to the key, the darker colors have the high higher crustal age. The mid-ocean ridges are where new rock is forming. Am I mistaken or is the key / map backwards?</DIV> <DIV>&nbsp;</DIV> <DIV>&nbsp;</DIV> <DIV> <DIV class="">&nbsp;</DIV> <P>&nbsp;</P> </DIV> Mon, 17 Nov 2025 18:55:13 GMT https://community.esri.com/t5/k12-discussion/sea-floor-crustal-age-map-question/m-p/1660291#M362 LindaKronenbitter 2025-11-17T18:55:13Z https://community.esri.com/t5/k12-discussion/sea-floor-crustal-age-map-question/m-p/1682375#M365 <P>Hello!</P><P>I am sorry for the delayed reply! You are not wrong. This fall, we encountered a bug that reversed the legend. We have corrected this issue, and the legend should now appear correctly.</P><P>Thanks!</P><P>Sarah Appleton</P> Thu, 05 Feb 2026 14:57:10 GMT https://community.esri.com/t5/k12-discussion/sea-floor-crustal-age-map-question/m-p/1682375#M365 SarahAppleton 2026-02-05T14:57:10Z