File:Volcanic Landscapes, Central Andes.JPG
Original file (4,288 × 2,846 pixels, file size: 2.76 MB, MIME type: image/jpeg)
Captions
Summary
editDescriptionVolcanic Landscapes, Central Andes.JPG |
English: The landscape in the central Andes Mountains, near the border between Chile and Argentina, is dominated by volcanoes and associated landforms. Layers of older sedimentary rocks are visible to the upper middle, and many volcanic cones show grooves where water has eroded the rock to form gullies. Such erosion has occurred since the host volcano was built up, indicating that most volcanoes in this view have been inactive for centuries or millennia.
A few volcanoes exhibit much less erosion, and even show tongues of dark, recent lava flows (upper left). Two of these volcanoes, Cerro el Cóndor and Peinado, have likely erupted within the past 12,000 years. Also visible is the world’s highest active volcano, Nevado Ojos del Salado, with a summit 6,887 meters above sea level. The most recent confirmed eruption has been dated to the year 700 (+/- 300 years), but minor eruptive activity may have occurred as recently as 1993. The landscape also shows that the erosive work of rivers and glaciers in the region is slower than the upward building processes of the volcanoes. The bright blue lake -- nearly 7 km long -- near the centre of the image is Laguna Verde. This and other less obvious lakes indicate that water from snow-melt or direct precipitation is unable to reach the sea, being impounded in the depressions between the volcanic edifices. |
Date | |
Source | NASA Earth Observatory |
Author | ISS Expedition 24 crew |
Other versions | File:Volcanic Landscapes, Central Andes labelled.jpg |
Camera location | 27° 00′ 00″ S, 68° 30′ 00″ W | View this and other nearby images on: OpenStreetMap | -27.000000; -68.500000 |
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This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS024-E-12425. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Other languages:
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Image acquired with a Nikon D2Xs digital camera using an 80 mm lens, and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center.
Licensing
editPublic domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
Warnings:
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Annotations InfoField | This image is annotated: View the annotations at Commons |
lava flow
tuff sheet
Peinado
Cerro el Cóndor
Laguna Verde
Nevado Ojos del Salado
eroded cone
eroded cone
eroded cone
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:41, 8 September 2010 | 4,288 × 2,846 (2.76 MB) | Originalwana (talk | contribs) | {{Information |Description={{en|1=The landscape in the central Andes Mountains, near the border between Chile and Argentina, is dominated by volcanoes and associated landforms. Layers of older sedimentary rocks are visible to the upper middle, and |
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Metadata
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 | NIKON CORPORATION |
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Camera model | NIKON D2Xs |
Exposure time | 1/800 sec (0.00125) |
F-number | f/5.3 |
ISO speed rating | 200 |
Date and time of data generation | 12:44, 22 August 2010 |
Lens focal length | 80 mm |
Orientation | Normal |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Microsoft Windows Photo Gallery 6.0.6001.18000 |
File change date and time | 10:34, 8 September 2010 |
Exposure Program | Shutter priority |
Exif version | 2.21 |
Date and time of digitizing | 12:44, 22 August 2010 |
APEX shutter speed | 9.643856 |
APEX aperture | 4.811985 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 70 |
DateTimeOriginal subseconds | 70 |
DateTimeDigitized subseconds | 70 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 120 mm |
Scene capture type | Standard |
Contrast | Soft |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |