15:2215:22, 17 July 2024diffhist+38
Meteor Crater
→Discovery and investigation: "San Francisco Volcanic Field" - changed distance - the SE edge of the field is only about 20 miles from Meteor Crater (i.e. near Winona or Angell or Babbitt Wash) - 40 miles is distance to the Google Maps/Google Earth placemark of San Francisco Peaks, farther to the northwest - the volcanic field extends far to the east of this point; also the cited source reference incorrectly states that the San Francisco volcanic field is only 6 km northwest of the cratercurrent
14:2514:25, 17 July 2024diffhist+81
Meteor Crater
→Discovery and investigation: intial volcanic steam explosion cause - changed from "The crater had initially been described as an action of a volcanic steam explosion" to "The crater was initially assumed to have been formed by a volcanic steam explosion ; evidence of geologically recent volcanic activity occurs across this part of Arizona"
16 July 2024
23:0223:02, 16 July 2024diffhist+230
Silurian
→Flora and fauna: "early Ludlow (420 million years)" - added "needs update?" tag because after revisions of the ICS geologic time scale, early Ludlow is defined now as more like c. 427 to c.426 million years ago; 420 million years ago would now be regarded as late Pridoli
22:1722:17, 16 July 2024diffhist+8
Silurian
→History of study: changed "Whilst the rocks now identified as belonging to the Silurian period" to "Whilst the British rocks now identified as belonging to the Silurian System" - clarified the rocks as "British"; rocks are in a system, events and times are in a period
14:1014:10, 13 July 2024diffhist+307
Geology of the Canary Islands
→Tenerife: moved first paragraph to end of section; added a sentence "During the Holocene Epoch, Tenerife has had more confirmed volcanic eruptions (eighteen) than any other Canary island." with source reference
13:4713:47, 13 July 2024diffhist−89
Blue Lias
reverted my 2 edits about Scotland (due to finding probable errors in the BGS Lexicon, which includes western Scotland in its list of locations for this formation)Tag: Manual revert
15:2215:22, 17 July 2024diffhist+38
Meteor Crater
→Discovery and investigation: "San Francisco Volcanic Field" - changed distance - the SE edge of the field is only about 20 miles from Meteor Crater (i.e. near Winona or Angell or Babbitt Wash) - 40 miles is distance to the Google Maps/Google Earth placemark of San Francisco Peaks, farther to the northwest - the volcanic field extends far to the east of this point; also the cited source reference incorrectly states that the San Francisco volcanic field is only 6 km northwest of the cratercurrent
14:2514:25, 17 July 2024diffhist+81
Meteor Crater
→Discovery and investigation: intial volcanic steam explosion cause - changed from "The crater had initially been described as an action of a volcanic steam explosion" to "The crater was initially assumed to have been formed by a volcanic steam explosion ; evidence of geologically recent volcanic activity occurs across this part of Arizona"
16 July 2024
23:0223:02, 16 July 2024diffhist+230
Silurian
→Flora and fauna: "early Ludlow (420 million years)" - added "needs update?" tag because after revisions of the ICS geologic time scale, early Ludlow is defined now as more like c. 427 to c.426 million years ago; 420 million years ago would now be regarded as late Pridoli
22:1722:17, 16 July 2024diffhist+8
Silurian
→History of study: changed "Whilst the rocks now identified as belonging to the Silurian period" to "Whilst the British rocks now identified as belonging to the Silurian System" - clarified the rocks as "British"; rocks are in a system, events and times are in a period
14:1014:10, 13 July 2024diffhist+307
Geology of the Canary Islands
→Tenerife: moved first paragraph to end of section; added a sentence "During the Holocene Epoch, Tenerife has had more confirmed volcanic eruptions (eighteen) than any other Canary island." with source reference
13:4713:47, 13 July 2024diffhist−89
Blue Lias
reverted my 2 edits about Scotland (due to finding probable errors in the BGS Lexicon, which includes western Scotland in its list of locations for this formation)Tag: Manual revert