File:SP_crater_NASA.jpg References

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Summary

DescriptionSP crater NASA.jpg	English: The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite captured this natural-color image on April 17, 2010. SP Crater is a cinder cone, a conical structure made up of volcanic fragments, often glassy rocks containing bubbles of trapped gas. Cinder cones often form around or downwind from volcanic vents. When lava erupts from these structures, it frequently flows out of breaches on the side, and that appears to be the case at SP Crater. Like most volcanoes in this field, SP Crater is a basalt cinder cone. Basalt has low resistance to flow, so basalt lava flows tend to travel fairly far from the eruption source. Forming a paisley pattern, the dark volcanic rocks north of SP Crater result from lava flows. (This image has been rotated and north is at right.) The hardened lava extends some 4 miles (6 kilometers) from the cinder cone, and is about 100 feet (30 meters) thick. Different dating techniques have placed the age of this lava between 4,000 and 71,000 years old.
Date	17 April 2010
Source	https://earthobservatory.nasa.gov/images/49450/sp-crater-northern-arizona
Author	NASA Earth Observatory image by Jesse Allen and Robert Simmon, using ALI data from the NASA EO-1 team.

Licensing

	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: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/ Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI. [1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:21, 7 December 2019		720 × 360 (232 KB)	Hike395	{{Information \|description ={{en\|1=The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite captured this natural-color image on April 17, 2010. SP Crater is a cinder cone, a conical structure made up of volcanic fragments, often glassy rocks containing bubbles of trapped gas. Cinder cones often form around or downwind from volcanic vents. When lava erupts from these structures, it frequently flows out of breaches on the side, and that appears to be the case at SP Crater...

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Unique ID of original document	xmp.did:02801174072068119109C2499B5318F1
Software used	Adobe Photoshop CS5 Macintosh