tag:blogger.com,1999:blog-5192250381057989170.post5783530277916894356..comments2024-03-26T16:53:48.618-06:00Comments on In the Company of Plants and Rocks: Beach-combing 11,000 Feet above Sea LevelHollishttp://www.blogger.com/profile/10788942181934895493noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-5192250381057989170.post-44638039364673978242016-08-29T16:19:23.521-06:002016-08-29T16:19:23.521-06:00Thanks, Suvrat! More on early Proterozoic times so...Thanks, Suvrat! More on early Proterozoic times soon--above the quartzite is stromatolitic dolomite. It's so mind-boggling to look at these rocks and think about how old they are, how things were then. We're lucky to have them!Hollishttps://www.blogger.com/profile/10788942181934895493noreply@blogger.comtag:blogger.com,1999:blog-5192250381057989170.post-86559606919094505682016-08-26T22:57:31.002-06:002016-08-26T22:57:31.002-06:00enjoyed this one Hollis! I got my introduction to ...enjoyed this one Hollis! I got my introduction to sedimentary geology in a Proterozoic terrain.. so have a soft spot! Suvrat Kherhttps://www.blogger.com/profile/18281172632784780810noreply@blogger.comtag:blogger.com,1999:blog-5192250381057989170.post-14221658658998997162016-08-26T12:58:33.620-06:002016-08-26T12:58:33.620-06:00Anonymous--thanks for the info. Another reader men...Anonymous--thanks for the info. Another reader mentioned several beautiful quartzite Precambrian formations (I assume the Lorrain is?) in North America, and I recently read that these suggest a supercontinent rifting apart at the time.Hollishttps://www.blogger.com/profile/10788942181934895493noreply@blogger.comtag:blogger.com,1999:blog-5192250381057989170.post-44159815934116427122016-08-26T12:55:26.205-06:002016-08-26T12:55:26.205-06:00Beth, the answer is "No" unfortunately. ...Beth, the answer is "No" unfortunately. I think the two main factors are proximity to the Colorado Front Range, and more and more active retirees--those darn boomers! (moi) Fortunately it's the kind of place where you can quickly get off the beaten path. And visitation is already dropping off for the year. Nice that you visited the Med Bows before things got crazy!Hollishttps://www.blogger.com/profile/10788942181934895493noreply@blogger.comtag:blogger.com,1999:blog-5192250381057989170.post-74268700888166476712016-08-25T12:39:23.788-06:002016-08-25T12:39:23.788-06:00The Lorrain Formation on the Canadian Shield, whic...The Lorrain Formation on the Canadian Shield, which crops out between Sault Ste Marie and Sudbury is also a strikingly white quartzite metasedimentary. Especially where it forms the heart of the La Cloche Mountains along the northern shore of Georgian Bay of Lake Huron.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5192250381057989170.post-84597657727986889392016-08-24T20:48:57.386-06:002016-08-24T20:48:57.386-06:00Fascinating. I remember traveling through that are...Fascinating. I remember traveling through that area many years ago. We drove through (around?) the Snowy Range and camped in the Medicine Bow Mts. It seemed very wild and untouched by humans at that time. Is that still the case?Beth at PlantPostingshttps://www.blogger.com/profile/10473637655960119672noreply@blogger.com