|
New Mexico Bureau of Mines & Mineral Resources Bulletin 117
Geology of Carlsbad Cavern and other caves in the Guadalupe Mountains, New Mexico and Texas |
PLATES
|
|
Plate 5—A—Remnant pillar of gypsum, Expresseway Passage,
Dry Cave. Orange silt and limestone pieces form the darker "belt" of the
pillar. Photo Allan Hill. B—Porous and micritic layers in a displaced chert lens, Salt Flats, Big Room, Carlsbad Cavern. The porous layers contain grains of quartz sand in a chert matrix, whereas the micritic layers are free of sand. Note the very fine laminations in the micritic layer where the ruler is resting. Photo Alan Hill. |
|
|
Plate 6—A—Grayish-green montmorillonite clay partly filling
a solution pocket, Green Clay Room, Lower Cave, Carlsbad Cavern. The clay
has dried, cracked, and is sluffing out of the pocket and onto the floor.
Photo Alan Hill. B>—Waxy, pure-white endellite in a red-clay matrix, Top of the Cross, Big Room, Carlsbad Cavern. The endellite has formed as a layer between the limestone and the red clay, and also as pods and stringers in the red clay. Photo Ronal Kerbo. |
|
|
Plate 7—A—A "vein" of sulfur exposed in a gypsum block
filling a joint in the ceiling, Cottonwood Cave. Maximum width of the
"vein" is about 1 m. Photo Tom Meador. B—Canary-yellow crystaline sulfur in a gypsum block, Gypsum Passage, Cottonwood Cave. Photo Jerry Trout. |
|
|
Plate 8A—Sulfur crystals on the underside of a projection
of bedrock, East Annex of the New Mexico Room, Carlsbad Cavern. Photo Alan
Hill. B—Sulfur crystals overlying gypsum flowers and crust, East Annex of the New Mexico Room, Carlsbad Cavern. Photo Cyndi Mosch Seanor. |
| <<< Previous | <<< Contents >>> | Next >>> |
state/nm/1987-117/plate2.htm
Last Updated: 28-Jun-2007