Posts treating: "canyon walls"
Sunday, 26 June 2016
Earthly Musings [2016-06-26 20:31:00]
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(679 visits) Carboniferous,Neogene; IN,US,TH
My latest river trip in the Grand Canyon included some choice perks! In advance of the trip, there were three nights at The Enchantment Resort located in Boynton Canyon near Sedona and on the back end was a night at the Vdara Hotel on the Strip in Las Vegas. That might sound cheesy I agree, but sandwiched between these two luxurious bookends was a six-day rafting trip in Grand Canyon. It was a perfect ying and yang of a trip. Additionally, there were some fantastic flight to and from the river. [...]
Utah Geological Survey - blog [2015-11-17 22:29:22]
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(112 visits) Permian,Carboniferous; US
Dark Canyon Primitive Area, San Juan County, Utah Photographer: Diane Menuz; © 2015 The stream in the lower section of Dark Canyon runs reddish brown following heavy morning rain. Sandstone of the Permian-age Cutler Group forms the canyon walls and limestone of the Pennsylvanian-age Honaker Trail Formation is exposed along the stream
Earthly Musings [2015-06-09 17:42:00]
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(207 visits) Cambrian,Carboniferous; US,,HT
This past week I was privileged to lead a group of 28 enthusiastic people down the river in Grand Canyon. Most everyone was from San Antonio Texas but connected to the canyon through the Grand Canyon Association. It was nice to finally be on a trip where the water in the rapids felt great. In this posting, I highlight some details about the Muav Limestone.At Lees Ferry, the Paria River was contributing some silty water to the green Colorado. recent rains provided the small amount of [...]
Buckskin Gulch, Kane County, Utah Photographer: Valerie Davis; © 2013 Canyon walls of Buckskin Gulch, Kane
Earthly Musings [2014-09-16 19:45:00]
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(83 visits) Cambrian,Jurassic; US,NZ,AU
My Grand Canyon 10-Day rafting trip this year was extra special. We had 13 excited participants ready to learn a little geology and take some hikes to Grand Canyons' great places. But also, there were two special family member's along, my wife Helen and her dad Joel. This posting features photographs 100% from Helen who is becoming a sensational photographer before our eyes. Enjoy the canyon through Helen's lens!By the way, these are photo's taken with her iPhone. A nicer camera is on its way [...]
Mosaic burn on the rim of Oak Creek Canyon. Courtesy of USFS.Many friends from across the country have been asking about the Slide Fire south of Flagstaff. The firs made national news headlines as it raced north out of the canyon, seemingly making a beeline toward Flagstaff. I was traveling at the time on the Colorado River in Grand Canyon and smelled smoke on Thursday morning while in Havasu Creek. I immediately thought of Flagstaff.The fire is mostly under control now and the first detailed [...]
Tuesdays sessions were devoted to ideas related to the evolution of the Grand Canyon, the Colorado Plateau, and the Rocky Mountains.Lon Abbott (Univ. of Colorado) presented a fascinating talk on nine travertine deposits that are found on or near the Tonto Platform between Hermit and Boucher creeks. The most interesting of these are the ones perched on top of the Tonto. Curiously, they do not drape over the ledge into the Inner Gorge, suggesting to him that they predate the cutting of the Vishnu [...]
The Noctis Labyrinthus looks like it was meant to be a Martian Greece. Or the Scablands(*). Alas, its too high up even at the canyon floors to be Greece. The eastern end of the canyons would have ocean access, but the western not...huh. The canyon walls would be ~4000m/13,000 ft. 10 to 20 km/6 to 12 mile wide canyons, too.
The Xanthe Terrae seems like it'd be an interesting
Earthly Musings [2013-06-19 18:22:00]
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(108 visits) Devonian,Carboniferous,Cambrian
I just returned from an eight-day Colorado River trip in Grand Canyon with other professional geologists. The trip was organized by my friend and colleague Howard Capito who assembled these professionals, friends, and family members. One of the striking facts about this group was the high number of participants who had never before seen Grand Canyon - their first views would be from the bottom up. The trip was successful beyond any measure. And it was fun!Of course, a river trip of such length [...]
I have flown a lot over the course of my life, probably more than most folks who don't have to travel for a job. I have always loved occupying the window seat. Being able to look down at buildings and cars and the landscape was always magical, but it wasn't until getting into geology that I began to really appreciate flying in a window seat. Seeing geologic structures from the air makes me feel like a superhero (Geology Girl! photographing plunging synclines in a single shot!), so [...]
AZGS geologists Ann Youberg and Joe Cook led a field trip for the UA chapter of AEG this past Saturday, up Sabino Canyon to examine the debris flows that formed in July 2006 from intense monsoon rains.The photo at right is a panorama by Joe, showing some of the debris flow scars along the canyon
And so, I relaxed at the Jarbidge Forks, before turning back to my truck. It was the second day on my journey to Jarbidge, and I was going to make it this time! But first (from the first day), we'll take a quick look to the north, downstream in the canyon of the Jarbidge River. The geology of the canyon walls is a bit deceptive. The rocks are dark-looking from a distance, so it's easy to