File:Frecha da Mizarela - Serra da Freita - Portugal (51714182263).jpg
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[edit]DescriptionFrecha da Mizarela - Serra da Freita - Portugal (51714182263).jpg |
Aqui, o rio Caima projeta-se a mais de 60 metros de altura, num espetáculo natural digno de ser contemplado, à escuta das águas que correm pelas rochas graníticas aproveitado pelos praticantes de canyoning. Do miradouro observa-se, a três dimensões, o granito da serra da Freita, uma rocha mais dura e resistente à erosão fluvial do que a generalidade dos micaxistos localizados a jusante. Estas rochas metamórficas ante-ordovícicas, por serem mais brandas e macias, tornam a erosão fluvial mais eficaz, algo que é bem visível na paisagem, devido ao rebaixamento topográfico que apresentam. Mas não é só esta erosão diferencial que explica a origem da Frecha da Mizarela. Acredita-se que o sistema de falhas que condiciona toda a serra da Freita terá, igualmente, desempenhado um papel importante para a ocorrência deste fenómeno. Neste sentido, a movimentação dos blocos associada à Orogenia Alpina terá contribuído significativamente para o encaixe do rio e para a formação deste grande desnível. As encostas íngremes que circundam esta queda de água apresentam um verde luxuriante, com relíquias da vegetação primitiva da serra da Freita. Da Laurissilva persiste, na base da Frecha, o rododendro (Rhododendron ponticum subsp. baeticum) e nas escarpas observam-se as árvores representativas da Fagossilva, com enfase para o carvalho-alvarinho (Quercus robur) e o carvalho-negral (Quercus pyrenaica), entre outras espécies raras e protegidas. <a href="http://aroucageopark.pt/pt/conhecer/geodiversidade/geossitios/frecha-da-mizarela/" rel="noreferrer nofollow">aroucageopark.pt/pt/conhecer/geodiversidade/geossitios/fr...</a> |
Date | |
Source | Frecha da Mizarela - Serra da Freita - Portugal 🇵🇹 |
Author | Vitor Oliveira from Torres Vedras, PORTUGAL |
Camera location | 40° 51′ 45.15″ N, 8° 17′ 10.79″ W ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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This image was originally posted to Flickr by Portuguese_eyes at https://flickr.com/photos/21446942@N00/51714182263. It was reviewed on 6 December 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
6 December 2021
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current | 12:21, 6 December 2021 | ![]() | 3,456 × 5,184 (13.06 MB) | Tm (talk | contribs) | Transferred from Flickr via #flickr2commons |
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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | Canon |
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Camera model | Canon EOS Kiss X6i |
Exposure time | 1/200 sec (0.005) |
F-number | f/8 |
ISO speed rating | 100 |
Date and time of data generation | 15:48, 15 August 2021 |
Lens focal length | 41 mm |
Width | 3,456 px |
Height | 5,184 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop 23.0 (Macintosh) |
File change date and time | 22:39, 29 November 2021 |
Exposure Program | Normal program |
Exif version | 2.31 |
Date and time of digitizing | 15:48, 15 August 2021 |
APEX shutter speed | 7.643856 |
APEX aperture | 6 |
APEX exposure bias | 0 |
Maximum land aperture | 4.375 APEX (f/4.56) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Color space | Uncalibrated |
Focal plane X resolution | 5,798.6577181208 |
Focal plane Y resolution | 5,788.9447236181 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Serial number of camera | 033031000929 |
Lens used | TAMRON 16-300mm F/3.5-6.3 Di II VC PZD B016 |
Date metadata was last modified | 22:39, 29 November 2021 |
Unique ID of original document | 099AEC196249C45B280517D3944F1B03 |
IIM version | 4 |