A Geoscience Digital Image Library

TitleXenoliths at Kilbourne Hole, New Mexico
DescriptionKilbourne Hole is a type of volcanic feature called a maar. The maar formed by a violent, gaseous eruption about 80,000 years ago. The eruption blew much ashy debris into the air which settled to give layered deposits containing abundant xenoliths - samples from the earth's crust and mantle that were carried to the surface by the exploding magma. This photo shows xenoliths: the green specimens are a type of ultramafic rock called lherzolite, the black ones are pyroxenites, and the gray samples are crustal granulites.
Geologic provincePotrillo Volcanic Field
LocationUSA ▹ New Mexico. Near El Paso, Texas. Samples collected from northeast side of Kilbourne Hole, in Potrillo Volcanic Field, 35 miles NW of El Paso.
PhotographerDexter Perkins. 2003-02-16.
Key wordsKilbourne Hole, xenolith, lherzolite, granulite, New Mexico
Tech details1.3 MB. Vista. Canon Powershot S40.
GeoDIL number2974