Geology/EarthScience
View allAll Photos Tagged Geologic
Death Valley, California, USA
Death Valley National Park is one of many units within the National Park service established because of its underlying geologic theme. Death Valley NP is renowned world-wide for its exposed, complex, unique tectonics and diverse geologic resources. Contained within its boundaries is a diverse rock record stretching throughout most of geologic time. From 1.8 billion-year-old metamorphic rocks exposed in the Black mountains, to recent playa sediments deposited in the valley basins, Death Valley possesses a superb geologic record. Paramount to understanding Death Valley’s geology is realizing that it is an ongoing dynamic process. Wind, water, and plate tectonics are still hard at work shaping the park on a day-to-day basis.
Death Valley is currently building a rock collection of the park’s stratigraphy. The following list of geologic formations and corresponding ages represents what has been collected in the park and are available for viewing at our curatorial facility. 41 formations are listed with a number correlating them to the original reference used to describe and locate them. Based on research, 61 formations are known to exist in the park. Those missing 20 formations have not yet been added to our Stratigraphy Collection. It should be noted that 3 formations have been given unofficial names: Warm Spring Granite, Skidoo Granite, and Strozzi’s Ranch Rhyolite.
Mikrovalto, Kamvounia mountains, potamia stream, Kozani, Macedonia, Greece.
The whole area consists of sandstone rocks, which over the centuries have formed special geological formations.
Guide books only tell you so much about a region - I like to wander and look for subjects that do not get as much attention. This unnamed rock formation was just begging to be photographed.
This photo is from the Utah State Route 12 region. The main road passes by the base of this rock formation. I parked my car and then walked through the scrub brush to get a better point of view.
No comments today – just please enjoy
Dry Falls-Grant County-Washington State
Dry Falls is a geological wonder of North America. Carved by Ice Age floods more than 13,000 years ago, the former waterfall was once four times the size of Niagara Falls.
Amazing rock formation at Lulworth cove , there is so much erosion at this beautiful location , not sure how long its all going to last :(
Mammoth Hot Spring's Orange Mound Spring is a sight to see. Colors were nice and rich on this rainy afternoon. Dimensions are 48'x25'x25'. It is quite tall and impressive.
The Orange Mound Spring is thermally cooler (~170˚F) than most springs in Yellowstone and at the Mammoth Hot Springs themselves, allowing the orange-tinted cyanobacteria to thrive and color the spring a darker shade of orange than the rest of the Mammoth Terraces. Depending on the nutrients that the bacteria receive, the color may change throughout the year.
The Spring is said to be very old due to the shape and size of the mound as well as how little water flows out of the spring itself. It has created other nearby cone-shaped springs from itself due to the travertine deposits wearing away.
Have a wonderful weekend!
This pipe plug is a part of the underground plumbing system of a long extinct Volcano, revealed by erosion, more pipes from the same system are visible in the back. Interestingly, the lava raising up is not mixed thoroughly and composed two distinct types, one dark, the other light. These pipes feed a large volcano, most likely a cone like stratovolcano. The red sandstone of the Comb Ridge monocline stretches across the background.
Had a great day traveling across I-70, especially that part through my home state of Utah. Definitely got a little exercise as I made several stops and hiked to areas I wanted to photograph from. Took over 150 pictures to day. I'll post a few more some other time. Still sorting and deciding which I like best.
These are late Cretaceous greywacke sandstones of the Cambria slab. They are interpreted as submarine landslides into a large marine canyon, something like the present-day Monterey Canyon. Ordinarily they look like massive, grey, featureless sandstone. But in flat light & when they are wet, sometimes you get enigmatic hints like this. . .
Field of view is about 2 ft (60 cm) across, by memory.
Mono Lake, nestled in California's eastern Sierra Nevada, is renowned for its extraordinary saline environment, dramatic tufa towers, and the incredibly productive ecosystem it sustains.
This highly alkaline lake provides a unique habitat for brine shrimp and alkali flies, which in turn support millions of migratory birds.
The striking tufa towers, formed by mineral deposits, stand as iconic, otherworldly sentinels around its shores.
Even in the frigid winter, Mono Lake remarkably remains unfrozen, a testament to its high salt concentrations.
Adding to its geological intrigue, the Mono Lake volcanic field, with vents on its northern shore and on Paoha and Negit Islands, was last active mere centuries ago.
(Nikon Z6III, Nikon 28-400/f4-8, 1/800 @ f/13, ISO 500, edited to taste)
An dark capture on the edge of the loch near Ardtur with the layers of three mountain ridges in the horizon and some wonderful trees on the shoreline. Fences run all across the bay towards the sandy parts of the Loch Linnhe shore.
The Cottonwood Canyon Road is a rough 47 mile road which travels past many interesting geologic features such as these rounded uplifted sections of rock.
Happy Slider Sunday!
© Leanne Boulton, All Rights Reserved
The Trotternish Landslip seen from The Quiraing on the Isle of Skye, with a couple of walkers on the ridge for scale. In geological terms the Trotternish landslip on Skye is recent, occurring around 11,000 to 15,000 years ago and part of it is still moving to this day! Enjoy!
From our day out visiting historic sites on Dartmoor. From the Bronze Age settlement Grimspound we walked up the hill to Hookney Tor which is a nice viewpoint for the circular stonewall surrounding Grimspound. It was one of the rare sunny days during the holidays so we were happy to make most of the good weather! Blue skies don't add much interest to a landscape so I played around with placing the sun just behind the granite outcrops to create a nice sunburst.
This is a section of rock rising up on the shore of Lake George in Killarney Provincial Park. The colors, textures and shapes combined with the reflection in the water simply mesmerized me. It is a tapestry of history layered and exposed over time by the elements of nature.
A spotlight shines on a a filled magma chamber or tube visible on the side of the main opening at Algar do Carvāo. This unusual volcanic cave system is a volcanic pit or vent, also called a volcanic chimney that is about 80-90 meters (262 -295 ft.) deep. Secondary magma chambers open up on its sides. The vent first formed roughly 3,200 years ago during the eruption on the side of the Guilherme Moniz caldera. It lies near the intersection of 3 volcanic complexes: Santa Barbara to the west, Pico Alto to the north, and Guilherme Moniz, which is a short distance to the south. A second eruption, occurring in the same spot 1,200 years later. It created many of the magma chambers seen today. It is rare to find an open vent or chimney as they are usually blocked with solidified magma/lava.
A land of hoodoos, spires, petrified wood and unique shaped geological features. A place to wander among the stark beauty and find the unusual.
The greenhouse at the spanische Terrassen in the Planten un Blomen botanic gardens in Hamurg, Germany.