File:Volcano and impact crater 45777 1765.jpg
![File:Volcano and impact crater 45777 1765.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Volcano_and_impact_crater_45777_1765.jpg/269px-Volcano_and_impact_crater_45777_1765.jpg?20231125015156)
Original file (768 × 1,712 pixels, file size: 402 KB, MIME type: image/jpeg)
Captions
Captions
Summary
[edit]DescriptionVolcano and impact crater 45777 1765.jpg |
English: This photo shows some differences between craters caused by volcanoes and those caused by impact. NASA wrote the following caption for this image: This image shows a circular impact crater and an oval volcanic caldera on the southern flank of a large volcano on Mars called Pavonis Mons.
The caldera is also the source of numerous finger-like lava flows and at least one sinuous lava channel. Both the caldera and the crater are degraded by aeolian (wind) erosion. The strong prevailing winds have apparently carved deep grooves into the terrain. When looking at the scene for the first time, the image seems motion blurred. However, upon a closer look, the smaller, young craters are pristine, so the image must be sharp and the “blurriness” is due to the processes acting on the terrain. This suggests that the deflation-produced grooves, along with the crater and the caldera, are old features and deflation is not very active today. Alternatively, perhaps these craters are simply too young to show signs of degradation. This deeply wind-scoured terrain type is unique to Mars. Wind-carved stream-lined landforms on Earth are called “yardangs,” but they don’t form extensive terrains like this one. The basaltic lavas on the flanks of this volcano have been exposed to wind for such a long time that there are no parallels on Earth. Terrestrial landscapes and terrestrial wind patterns change much more rapidly than on Mars. Written by: Henrik Hargitai and Ginny Gulick (narration: Tre Gibbs) (21 September 2016) |
Date | |
Source | https://www.uahirise.org/ESP_045777_1765 |
Author | Jim Secosky suggested NASA take this image of this spot with HiRISE through the HiWish program. He then modified the image with labels. The image credit should read: NASA/JPL-Caltech/UArizona/Secosky |
Location on Mars | 3° 23′ 34.8″ S, 114° 15′ 36″ E | View this and other nearby images on: Google Maps | ![]() |
---|
Licensing
[edit]Public 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:
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 01:51, 25 November 2023 | ![]() | 768 × 1,712 (402 KB) | Jimmarsmars (talk | contribs) | Uploaded a work by Jim Secosky suggested NASA take this image of this spot with HiRISE through the HiWish program. He then modified the image with labels. The image credit should read: NASA/JPL-Caltech/UArizona/Secosky from https://www.uahirise.org/ESP_045777_1765 with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on en.wikipedia.org
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.
Orientation | Normal |
---|---|
Original transmission location code | BT06P7u38oltBud4BHUm |