Rock strata

6,191 points • 114 comments

The Quebrada de Humahuaca is a beautiful valley in the Andes Mountains of Argentina. It is known for its colorful mountains, which are the r...

volcanic rock strata / layers

Robert Macfarlane on Instagram: “Strata-stories, the deep-time liveliness of rock...these are the endpapers (nb the spine shadow-line) of Underland. I saw them for the…”

Download this stock image: Sandstone rock strata pattern. Northumberland Coastline, England - DBBW6D from Alamy's library of millions of high resolution stock photos, illustrations and vectors.

Folded strata in gneiss. Polished slab of folded gneiss rock.

Sandstone strata - Coyote Buttes, Arizona. In geology, a stratum (plural: strata) is a layer of sedimentary rock or soil, or igneous rock that were formed at the Earth's surface, with internally consistent characteristics that distinguish it from other layers. The "stratum" is the fundamental unit in a stratigraphic column and forms the basis of the study of stratigraphy. Each layer is generally one of a number of parallel layers that lie one upon another, laid down by natural processes.

Aerial photo of the Huns Mountains, Namibia. Deep canyons cut into this old desert mountain range. Its rock layers were deposited in an ancient ocean 500 Million years ago. The hard limestone shelves erode more slowly than the softer intervening marlstone strata, causing the sides of the valleys to break into terraces.⁣. Photo shared by Bernhard Edmaier Photography.

Close up of tilted rock strata. See [[744848]].