[Skip to content]
ISS050-E-29426
Browse image
Resolutions offered for this image:
1000 x 666 pixels 540 x 360 pixels 4000 x 2662 pixels 720 x 480 pixels 4928 x 3280 pixels 640 x 426 pixels

MAP LOCATION
latitude/longitude of image
Spacecraft nadir point: 17.2° N, 26.0° E

Photo center point: 15.3° N, 26.6° E

Nadir to Photo Center: South

Spacecraft Altitude: 219 nautical miles (406km)
Click for Google map
IMAGE DETAILS
features and other details
CAMERA INFORMATION
information about camera used
ALL DOWNLOAD OPTIONS
additional formats
Width Height Annotated Cropped Purpose Links
1000 pixels 666 pixels No No NASA's Earth Observatory web site Download Image
540 pixels 360 pixels Yes No NASA's Earth Observatory web site Download Image
4000 pixels 2662 pixels No No NASA's Earth Observatory web site Download Image
720 pixels 480 pixels Yes No NASA's Earth Observatory web site Download Image
4928 pixels 3280 pixels No No Download Image
640 pixels 426 pixels No No Download Image
Other options available:
Download Packaged File
Download a Google Earth KML for this Image
View photo footprint information
Image Caption: Image Caption: Meidob Volcanic Field

This photograph of the central Meidob Volcanic Field was taken by an astronaut onboard the International Space Station. The entire field covers an area of approximately 5,000 square kilometers (approximately 1,930 square miles) of western Sudan. There are numerous vents—nearly 700—that are believed by geologists to be less than 6 million years old. The most recent eruptive activity in the field has been dated to within 500 years of 2950 BCE, or roughly spanning the time of the unification of the Upper and Lower kingdoms of ancient Egypt.

While the majority of the Meidob field is comprised of volcanic rocks with significant iron and magnesium (basalt), the central region depicted here is dominated by volcanic rocks that have relatively higher amounts of sodium and potassium than basalt (known as trachyte and phonolite to geologists). This part of the volcanic field is also distinctive for the landforms that are common here, such as explosively-formed maar craters, lava domes built by viscous lava flows, and scoria or cinder cones formed around a single volcanic vent.