Photo Gallery: San Juan County, New Mexico, USA
Photo Gallery:
San Juan County, New Mexico, USA
P7R-4WLHendersonite (Ca,Sr)1.3V6O16·6H2O
Field of View: 4.5 mm
Dark green to black hendersonite.
Photo with Canon Eos 600 D + Bellows + Rodenstock Rodagon 35 mm 1:4,0 reversed.
Photo and collection Giovanni Scapin.
Chaco Culture National Historical Park
This aerial view of Pueblo Bonito shows the damage done by the 1941 rock fall. The Anasazi knew that the 100 foot tall leaning slabs were a threat because evidence was found that they had made an attempt to stabilize the rock.
Photo attribution: Author Bob Adams, Albuquerque, NM, Wikimedia Commons
Bennett Peak, NW NM
Interesting geology in the area as these peaks rise up from the floor of the desert
Bisti Badlands
Rocks in the Bisti / De-Na-Zin Wilderness are predominantly sandstone and shales of the Fruitland Formation and the Kirtland Shale. These rocks were deposited where a river system flowed into the Western Interior Seaway during the late Cretaceous. Many fossils have been discovered in these rocks.
Photo taken 15 March 2019
Camera: Nikon D600
Bisti Badlands
Rocks in the Bisti / De-Na-Zin Wilderness are predominantly sandstones and shales of the Fruitland Formation and the Kirtland Shale. These rocks were deposited where a river system flowed into the Western Interior Seaway during the late Cretaceous. Many fossils have been discovered in these rocks.
Photo taken 15 March 2019
Camera: Nikon D600
Shiprock Diatreme
Shiprock Diatreme, approx. 4 miles to the northwest from where this photo was taken on March 18, 2011. The diatreme is the eroded remnant of a volcanic neck on the Navajo Volcanic Field.
Pueblo Bonito
Chaco Canyon is located within the 75 to 80 Ma San Juan Basin. The rocks in this area are part of the Mesa Verde Group, which includes fluvial and marine sediments that were deposited along the shoreline of the Western Interior Seaway.
The Anasazi occupied the site from about 850 to 1250 AD. At one time it was a cultural centre of the region. Studies indicate that a major drought forced the abandonment of Chaco Canyon, although there is ongoing debate as to why people left the site.
Photo taken: June 1998
Camera: Nikkormat FS
Film: Agfa XRG 200
Pueblo Bonito
Chaco Canyon is located within the 75 to 80 Ma San Juan Basin. The rocks in this area are part of the Mesa Verde Group, which includes fluvial and marine sediments that were deposited along the shoreline of the Western Interior Seaway.
The Anasazi occupied the site from about 850 to 1250 AD. At one time it was a cultural centre of the region. Studies indicate that a major drought forced the abandonment of Chaco Canyon, although there is ongoing debate as to why people left the site.
Photo taken: June 1998
Camera: Nikkormat FS
Film: Agfa XRG 200
Chaco Culture National Historical Park
The National Park Service has an extensive research collection that documents the Anasazi culture in Chaco Canyon from AD 1 to AD 1250. The collection is currently housed in the Hibben Center on the University of New Mexico Albuquerque campus. The National Park Service shows over 100 photos of artifacts on their web site. These photos were selected to illustrate the use of rocks and minerals by pre-Columbian people in the southwestern United States suggesting that lapidary techniques had been developed.
The quartz grains in the sandstone abrader were more than able to grind the softer turquoise and argillite. Turquoise was plentiful in the Four Corners area but I was unable to find the source of the bright orange argillite.
Chaco Culture National Historical Park
The geological formation in the background is the Cliff House Sandstone. The Chaco Wash is in the foreground and is, on occasion, filled with flash flood water.
Photo 1986.
