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Kolob Canyons, also referred to as the Finger Canyons of the Kolob, occur in the northwestern corner of Zion National Park in southwestern Utah, USA.
Kolob Canyons occur immediately east of the Hurricane Cliffs, which sit at the western boundary of the Colorado Plateau Physiographic Province. As is the rest of the Colorado Plateau, Zion Park and the Kolob Canyons area consist of ~horizontally-oriented sedimentary rocks. In the Zion Park area, the rocks are almost entirely Mesozoic in age.
The main scenery-making unit at Kolob Canyons is the cliff-forming Navajo Sandstone (Lower Jurassic, possibly Upper Triassic? as well). The Navajo is a thick, cross-bedded, eolian quartzose sandstone deposit representing migrating sand dunes in an ancient sand sea (erg facies). The reddish coloration is due to hematite cement and hematite staining (hematite = Fe2O3). In places, the Navajo Sandstone lacks hematite staining and is whitish-colored.
Bottom-up weathering and erosion of Navajo Sandstone cliffs has produced blind arches in places, which are large, arch-shaped structures.
Differential weathering and erosion has produced a pitted surface on some Navajo Sandstone cliff faces - this is honeycomb weathering. Honeycomb weathering is common in just about any cliff-forming sandstone unit.
Underlying the Navajo Sandstone is the Kayenta Formation (?Upper Triassic to Lower Jurassic). The Kayenta consists of fluvial redbeds (reddish-colored, hematite-rich siliciclastic sedimentary rocks such as shale, siltstone, and sandstone deposited in river and floodplain environments). The next unit down is the Moenave Formation (Upper Triassic), also consisting of nonmarine redbeds. representing stream, floodplain, and lake deposits.
In the Kolob Canyons area, the Kayenta and Moenave Formations are noticeably tilted due to their proximity to the tectonic boundary between the Colorado Plateau and the Basin and Range. Minor faulting has occurred and several Kayenta-Moenave roadcuts along Kolob Canyons Road show nice normal faults.
The light of a setting Sun turns the Navajo Sandstone cliffs ablaze with fiery orangish-red coloration. This effect can be experienced in several American national parks.
Located on the Colorado Plateau in northern Arizona, Vermilion Cliffs National Monument includes the Paria Canyon-Vermilion Cliffs Wilderness. The Monument borders Kaibab National Forest to the west and Glen Canyon National Recreation Area to the east.
This remote and unspoiled, 280,000-acre Monument is a geologic treasure, containing a variety of diverse landscapes from the Paria Plateau, Vermilion Cliffs, Coyote Buttes, and Paria Canyon. Elevations range from 3,100 to 7,100 feet.
Visitors will enjoy scenic views of towering cliffs and deep canyons. Paria Canyon offers an outstanding three to five day wilderness backpacking experience. The colorful swirls of cross-bedded sandstone in Coyote Buttes are an international hiking destination. There are also opportunities to view wildlife, including California condors. There are two developed campgrounds just outside the Monument: Stateline and White House. Dispersed camping is allowed outside the wilderness area in previously disturbed areas.
A permit is required for hiking in Coyote Buttes North (the Wave), Coyote Buttes South, and for overnight trips within Paria Canyon.
Learn more at: www.blm.gov/az/st/en/prog/blm_special_areas/natmon/vermil...
Photo: Bob Wick, BLM California
The walk around the rim of Kings Canyon affords exceptional views. The colours at sunset are amazing. Kings Canyon is in Watarrka National Park in central Australia. North East of Uluru.
Masaya Volcano / Volcan Masaya: In 2018 I spent two weeks as a volunteer, working with scientists on the volcano and its caldera measuring volume and gravity changes.
These "cliffs" are less than a meter tall but the old lava shows the effects of long-tern sulphuric gas exposure.
Format: Glass plate negative.
Rights Info: No known restrictions on publication.
Repository: Tyrrell Photographic Collection, Powerhouse Museum www.powerhousemuseum.com/collection/database/collection=The_Tyrrell_Photographic
Part Of: Powerhouse Museum Collection
General information about the Powerhouse Museum Collection is available at www.powerhousemuseum.com/collection/database
Persistent URL: http://www.powerhousemuseum.com/collection/database/?irn=29649
Acquisition credit line: Gift of Australian Consolidated Press under the Taxation Incentives for the Arts Scheme, 1985
As one of Europe’s leading family destinations, this Resort exceeds expectations.
Located atop the dramatic red Algarvian cliffs that overlook the Atlantic Ocean, it affords a privileged position, with views spanning the soft sand beaches, elegant pine forests and abundant indigenous flora.
Where man and nature merge.
We are available to answer any question. Please call or e mail to schedule a viewing.
Sacramento Delta, Northern California
No memory of posting this before. Taken back in August 12th of 2007. I bet it was a hot summer day on the delta.
This sign screamed, "Somebody, clean me!"
Vueltas harbour. It didn't take much to make it a selective b/w, grey as it was.
[2013-03-07 IMG_4117-selbw]
This 80ft cliff was cut by the Murk Esk river below - a tributary of the Esk. It comprises of densly packed shales rich with fossils of shells and interlaced with seams of ironstone. Above the cliffs is the village of Grosmont. Within the cliffs a vast labyrinth of tunnels remain from the ironstone mining.
The Cliff Swallow (Petrochelidon pyrrhonota) is a member of the passerine bird family Hirundinidae — the swallows and martins.
It breeds in North America and Mexico, and is migratory, wintering in western South America from Venezuela southwards to northeast Argentina. This species is a very rare vagrant to western Europe.
This bird averages 13 cm (5 inches) long with a tiny bill. The adult has an iridescent blue back and crown, brown wings and tail, and buff rump. The nape and forehead are white. The underparts are white except for a red face. The tail is square-ended.
Young birds are essentially brown above and whitish below, except for the buff rump and dark face.
The only confusion species is the closely related Cave Swallow, which is richer in colour and has a cinnamon rump and forehead.
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