View allAll Photos Tagged METAMORPHIC
Michigan has been a Sea, had volcanic activity and glacial activity. We're left with great examples of sedimentary, metamorphic and semi metamorphic rocks. If you zoom in you'll see quarts, rhodochrosite, olivine and feldspar.
El museo de la Catedral de Astorga (León) – Spain fue inaugurado en el año 1954, en la zona del recinto que albergó la Antigua Escuela de la Catedral, la biblioteca y el archivo.
Las piezas románicas conservadas pertenecen por lo general a restos de la antigua catedral; aquí muestro un zócalo tallado en esquisto, datado en los siglos XII y XIII; una roca metamórfica del grupo de los silicatos, que permite la separación o corte de finas capas de la misma dimensión de la pieza.
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The Astorga Cathedral Museum (León) - Spain was inaugurated in 1954, in the area of the enclosure that housed the Old Cathedral School, the library and the archive.
The preserved Romanesque pieces generally belong to the remains of the old cathedral; here I show a plinth carved in schist, dated in the twelfth and thirteenth centuries; a metamorphic rock from the group of silicates, which allows the separation or cutting of thin layers of the same dimension as the piece.
These are clastic rocks. Clastic metamorphic rocks include breccias formed in faults, as well as some protomylonite and pseudotachylite. Occasionally, metamorphic rocks can be brecciated via hydrothermal fluids, forming a hydrofracture breccia.
Clastic igneous rocks include pyroclastic volcanic rocks such as tuff, agglomerate and intrusive breccias, as well as some marginal eutaxitic and taxitic intrusive morphologies. Igneous clastic rocks are broken by flow, injection or explosive disruption of solid or semi-solid igneous rocks or lavas
The geological term for this metamorphic rock is prismatic
sandstone. Ku-ring-gai Council mined this quarry for ‘white metal', a hard stone used for road building, railway tracks and local houses. The quarry commenced operations in the 1890s and may have been called Wilkes Quarry after the family that owned it. In 1915, newspaper records stated:
'The shire council' of Ku-ring-gai ...is properly reconstructing and efficiently repairing the Lane Cove Road from Roseville to Wahroonga… with a foundation of 4 inches of white metal from the Council’s quarry in Killara. "
In 1946 the quarry land was transferred for public park purposes and fell into disrepair until 1992 when the site was upgraded to its current layout for use by local residents. In 2007 local residents, with the support of Ku-ring-gai Council, formed a Parkcare group (QUARRY MASONS FOREST PARKCARE GROUP) to maintain the reserve for the community which enables them to improve their environment in a hands-on way. Council provides.a Parkcare trainer who assists the group with education and training, jncluding plant identification and weed removal techniques. The Parkcare program directly contributes to improving the park and surrounding bushland for the residents of the future. S20N_347
Blueschist is a rare metamorphic rock that forms only under extremely high pressure and relative low temperature. In his case, about 160 million year old basaltic ocean floor from the Pacific Ocean was pushed down into an oceanic trench to a depth of 40 km (25 miles), now it’s at 1200 meter (3,500 feet) elevation!
Near Echo Lake.
I wish an igneous or metamorphic petrologist would have a try at describing this.
There are 3 major geologic episodes in the area: A blackish metamorphic complex is about 1.7 BY. A pink set of granitic plutons (Pikes Peak granite and Mt. Evans granite) are about 1.1 BY. In Late Cretaceous to Paleogene time, the Laramide Orogeny produced mountain building and the introduction of precious metals. Two famous mining districts within the Colorado MIneral Belt, Central City and Georgetown, are less than 10 miles away but I noticed no evidence of mineralization near here, other than a few quartz veins.
Metamorphic rock at the burn confluence to the north of the Meall Gorm and Creag Leacach col (OS Grid Reference145753). The layers of mica and quartzite can be clearly seen. The quartzite is coloured orange by iron oxide.
Quartz "eyes" in metamorphic rocks (Greenschist, Platta nappe) from Furtschellas on the basis of the Corvatsch is full of different lichen variations
Omvrianós peak 3,310.4 ft (1009 m), Greece. Outcrops of schists & similar metamorphic rocks are scattered throughout the mountain’s cliffs. Petrokerasa village is nearby.
Elijah, the Old Testament Prophet, is revered as St. Elias by Greek Orthodox church and celebrated on July 20th.
Multitudinous shrines of St. Elias are erected on almost all mountains’ peaks throughout Greece; they’re usually quite tiny, old and picturesque, lit only by small hanging oil-lamps and candles.
folded sedimentary rock from a 1.1 billion year old, mostly eroded mountain range that was part of the Grenville Orogeny
welcome to the Canadian Shield
what is it, you ask?
click on the image to zoom into the sign.
one of my replies below has a bit more on the folding.
Metamorphic Suite, ©2015, 4 x 4.5 x 1 inches. Polymer, Pitt pen, drawing. Single sheet coptic bound. While playing with Maggie Maggio's watercolor wash technique and some scraps, I thought the areas of color looked like rocks and layers of earth. More photos on my website
Long Lake is one of the glacial lakes on the Beartooth Plateau that is next to Highway US 212 in Wyoming. The top of the Hill in the photo is 9805 feet (2989 meters) ASL. On this afternoon there were several rainshowers and storms that crossed the plateau periodically bringing very dark clouds.
part of the Mojave block, accreted during the build up of Rhodinia to the Laurentia (North America). This metamorphic rock is 1.7 billion years old.
About 1,800 million years (Ma) ago, a sedimentary conglomerate with round pebbles was subducted into an oceanic trench, transforming it into a metamorphic phyllite. During this process, the pebbles were flattened out into lens shaped pancakes, sometimes less than 0.5cm think and over 20cm in diameter. Seen here in cross section, some of the larger pebbles are still lens shaped with tapered corners.Red pebbles are hematite in Banded Iron Formation (BIF) Size approx 3 by 4 cm. Prescott Heights AZ, Center for Natural History
The kaleidoscopic metamorphic rock on the cliffs and mountains surrounding picturesque Convict Lake, provide a colorful backdrop to the calm water and colorful autumnal foliage of the eastern Sierra Nevada.
Fujinon 50/1.4
Sand of Plum Island contains deep purple and dark grey patches. It is due to high abundance of almandine-pyrope garnet, pyroxene augite, and magnetic minerals such as ilmenite and hematite. Epidote adds some greenish hue. The source of the minerals is a terminal moraine that contains huge boulders of igneous and metamorphic rocks and products of their decomposition.
Mica a mineral often present in metamorphic rocks. It was found near the head of the corrie at The Cairnwell, at the west side of Glen Shee.
The beautiful and dazzling sheen off the surface was incredible and is not justified in this photographic image! The surrounding lumps of mica could easily be broken with your fingers.
Mica is an aluminosilicate mineral which can be used as an electrical insulator and which is very heat resistant mineral.
Large, colorful metamorphic ridge reflected in a beaver pond; black stripes are from drowned trees that are still standing.
Eastern part of Yosemite National Park. Mt. Lyell, just left of center, is the highest point in the park at 13,114'. The Lyell Glacier, with dappled shadows, is no longer active and is considered a permanent ice field. Mt MacClure to its right, Rodgers Peak the sharp peak on the left, Helen Lake just below center. Taken from "Granite Divide", a granite peak located on the eastern park boundary, between the metamorphic Mts. Dana and Gibbs. Mono Pass is below and out of sight in the deep cleft on the left. The divide between the reddish metamorphic rock and the granite beyond is about at the far shore of Helen Lake.
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. It is the finest grained foliated metamorphic rock. Wikipedia
DSC_1407
Beaver Dam Mountains, Utah, precambrian, 1.7billion years.
Migmatites are metamorphic rocks subjected to high pressure and very high heat. as a result some components are melting (such as the whitish feldspar), whereas the more mafic components undergo ductile solid deformation. Kind of subterranean toffee factory...
Some recent events and experiences have resulted in me thinking about what type of photos I want to produce (or at least try). This is one of a small series of reconsidered photographs I have from the past. Some of them are re-edited and others ones I had not processed, not appreciating what might be in there.
Porth Lleuog, Pembrokeshire, S. Wales
As a fan of metamorphic rocks, I was drawn to this.
In this cemetery, probably 90 percent of the headsones are grey or red granite, probably from New Hampshire. Perhaps 10 percent (mostly military) are Colorado Yule marble, from Marble, Colorado. I think I saw no more than 5 or 6 metamorphic ones, all seemingly from a single quarry.
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This image is a continuation from “Internal Chrysalis,” my last image. These both are not quite original themes but the metamorphic idea is used to describe a time in my life.
It is amazing how much has changed in the last couple years. Before then I was completely lost. Having no idea of who I was meant to be – hating who I was – questioning my purpose. I was locked in my head, telling or revealing nothing to anyone. They shouldn’t have been burdened by me. My heart hurt everyday – physically and emotionally. I took in the poison which passes through out the air, waiting to touch the weak-minded. I was chained by my own mind, lost in my own body.
But there came that one day when I woke up and slowly began to see light. I began listening and seeing things which should, but not always are, seen. I found a passion – photography. I grew to create, to thrive into something that was a part of me.
But of all, I found God. Finally for those many years I craved his presence but I felt unworthy and didn’t understand how to find Him. However I was shown how simple it was to open your heart to Him - To speak and listen to Him. How everyday He lives along side you and guides you.
I could go on and on but for now I will keep it short. Inside, I have forever changed. God lives in me and I feel him every day. I no longer listen to those dark whispers. I have blossomed in light. My love for photography came when I had fallen deep in that pit; but from there I could pull myself with each image I made.
Editing this photo last night reminded me how much I love photography – how good it makes me feel. I lose myself for hours with each photo. But this internal disappearance only brings contentment to my world. I can finally convey my thoughts and ideas which were once locked in my head. Finally I had the courage to share.
Now with my new wings I am ready to fly.
Headstarted metamorphic flatwoods salamanders shortly before their return to their natal breeding pond in the Apalachicola National Forest, FL. These animals were rescued as eggs from drought conditions and wouldn't have hatched without our intervention. They were hatched and raised as aquatic larvae in outdoor "cattle tank" mesocosms and returned to the wild within a few days of transforming to their terrestrial form. This species is in sharp decline in the Apalachicola National Forest owing to the interruption of natural fire patterns which once was dominated by frequent, hot, dry-season fires. Now, prescribed fire practices heavily favor burning under unnaturally cool and wet conditions that fail to maintain this species' breeding habitat.
Micro-folding in quartzite at the north-east side of Mount Blair, just north of Corrie Vannoch (OS Grid reference 176636). Spotted beside a path on the hillside.
Metamorphic boulder, Mt. Falcon Park
Lichens love metamorphic rocks, at least those that are rich in iron and magnesium. ("FeMags")
Twilight over Boat Harbour Beach, NW Tasmania.
Harbour Point on the left, Table Cape on the right.
Leica Q2 Monochrom, Summilux 28mm f/1.7 ASPH, 1/4000th sec at f/1.7, ISO 400.
Not exactly sure why I shot this wide open...
Long exposure of Rock Stacks, Dorset, UK. 205 second exposure on Sony A7r + FE24-105. Hitech 16 Stop ND Filter.
Central Park, New York City
I love traveling and the learning that comes with it. On my recent trip to New York City I learned that a folly isn’t just an absurdity, a costly and foolish undertaking or an unwise investment or expenditure. It can also be a type of building. In architecture, a folly is a whimsical or extravagant building constructed primarily for decoration, to serve as a conversation piece, to lend interest to a view, or even to commemorate a person or event. Most Wyomingites are practical and do not have much use for whimsical buildings constructed as ‘decoration” Since I was born in Wyoming, I have never really given any thought to a large buildings thats purpose was for just for decoration.. It does seem, however, they were particularly popular in England in the 18th Century. This architectural concept was introduced to Central Park in New York City by Calvert Vaux (December 20, 1824, – November 19, 1895), a British-American architect and landscape designer.
In 1867, Vaux created a Gothic-style castle-like structure atop an outcrop of metamorphic rock (schist) called Vista Rock. Built as an observation platform without doors or windows, the top of the 2 story structure offers sweeping views of the Park and its surrounding cityscape. It looks out over the Great Lawn to the north and the Ramble to the south. Vaux named his creation Belvedere which means beautiful view in Italian. Not only is it a viewpoint but is was meant as a landmark for park pedestrians. “The castle’s United States flag could be seen from the Mall, drawing the walkers down to Bethesda Terrace, over Bow Bridge, and through the Ramble to the castle itself. In their Greensward Plan for Central Park, designers Frederick Law Olmsted (1822-1903) and Vaux illustrated this path, sketching the line of view from the Mall to the castle” (from reference 2).
The castle is built out of the same schist that makes up Vista Rock. This building stone came from quarries in the park and gives the illusion of a castle rising out of the ground. The lighter colored stone trim is made of granite quarried in Quincy, Massachusetts. Colored slate from Vermont, Virginia, and New York cover the roof of the structure.
In 1919, the Castle lost its standing as a true folly when it was converted for practical use. That year the National Weather Service took over the building and started enclosing it. They altered the turret’s shape to accommodate their scientific instruments. In 1919 it became their Central Park Weather Observatory. Technology changed and by the early 1960s, the Weather Bureau replaced the lab with automated instruments. They closed their Castle station after which the building remained empty and deteriorating. Finally in 1983 the Central Park Conservancy restored the building by replacing the original turret, rebuilding the pavilions, and converting the castle’s interior into a visitor’s center and bookstore. In 2018-2019, a $12M restoration and repair project was completed. The project restored the buildings facade, provided expansive views through new clear-pane-glass windows, installed new mechanical and utility systems, and recreated the wooden tower that was part of Olmsted and Vaux’s original plan 150 years ago. The tower had been modified by the National Weather Service.
Belvedere Castle is one of sites in the Central Park National Historic Landmark, The park was listed on the National Register of Historic Places in 1963.
References:
1- www.centralparknyc.org/attractions/belvedere-castle
2- www.nycgovparks.org/parks/central-park/highlights/11956
3- en.wikipedia.org/wiki/Calvert_Vaux
4- www.6sqft.com/central-parks-belvedere-castle-reveals-12m-...
5- npgallery.nps.gov/GetAsset/c2d46b7e-d702-426c-aa2e-c10fac...
A boldy standing metamorphic rock at the burn confluence to the north of the Meall Gorm and Creag Leacach col (OS Grid Reference145753).
Migmatites are rocks that contain both metamorphic and igneous phase and are formed under high pressure and temperature. These conditions exist only at depths close to earth’s mantle. Typically, the light phase contains quartz, feldspar and muscovite with lower melting points ( igneous phase) and dark minerals such as amphibolite and biotite with higher melting points in the metamorphic, non-melted state. Put both phases together, put them in a mixer and the result is a rock face that looks like a toffee mix! The length of this about 15 meters. Taken from a tour boat. The horizontal pattern is glacial striation.
Metamorphic rock in the Dead Water Burn at the north end of Glenclova Forest, on the south-east side of the Shank of Driesh.
A geological microcosm billions of years old is seen through new ice, at most hours old. The fjord system in this area cuts through three different geological units: the oldest units consists of Precambrian (4.6 billion year ago) and Caledonian (490 million years ago) metamorphic rocks. The colourful rocks and the little bubbles trapped under the ice caught my eye. Cape Hofmann Halvo, Harefjord, Scoresby Sund, East Greenland.
09/05/2020 www.allenfotowild.com
Perhaps not one of your favourite weeds to see. In each metamorphic stage it's very photographic.
They are edible and nutritious. Every part of this common edible weed is tasty both raw and cooked. If raw dandelion leaves don't appeal to you, they can also be steamed or added to a stir-fry or soup, which can make them taste less bitter. The flowers are sweet and crunchy, and can be eaten raw, or breaded and fried, or even used to make dandelion syrup or wine. The root of the dandelion can be dried and roasted and used as a coffee substitute, or added to any recipe that calls for root vegetables.
Sansom Wood, Nottinghamshire.
Castle Mountain is a mountain located within Banff National Park in the Canadian Rockies, approximately half-way between Banff and Lake Louise. It is the easternmost mountain of the Main Ranges in the Bow Valley and sits astride the Castle Mountain Fault which has thrust older sedimentary and metamorphic rocks forming the upper part of the mountain over the younger rocks forming its base. The mountain's castellated, or castle-like, appearance is a result of erosive processes acting at different rates on the peak's alternating layers of softer shale and harder limestone, dolomite and quartzite. (source: wikipedia)
Have a great Friday....thanks for all your visits & comments!!!!
© Darlene Bushue - All of my images are protected by copyright and may not be used on any site, blog, or forum without my permission.
Picture of a granulite, a metamorphic rock, between two polarisers. A rock sample was sliced so thin (ca. 25 µm) that it became translucent, revealing the minerals, the rock consists of. The almost black, rounded grains are garnets, the elongated greyish grains are quartz and feldspar. The thin brownish vertical veins are mica. The width of the image is 7 mm. Taken with a Canon MP-E 65 mm lens.