rock varnish
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rock varnish — A thin, dark, shiny film or coating, composed of iron oxide accompanied by traces of manganese oxide and silica, formed on the surfaces of pebbles, boulders, and other rock fragments, commonly on rock outcrops in arid regions. It is believed… … Glossary of landform and geologic terms
Desert varnish — in Horseshoe Canyon, Canyonlands National Park, Utah. Desert varnish, or rock varnish is a orange yellow to black coating found on exposed rock surfaces in arid environments. Desert varnish is usually around one micron thick and present nanometre … Wikipedia
desert varnish — (not preferred) refer to rock varnish … Glossary of landform and geologic terms
Newspaper Rock State Historic Monument — Coordinates: 37°59′18″N 109°31′05″W / 37.98833°N 109.51806°W / 37.98833; 109.51806 … Wikipedia
desert varnish — the dark, lustrous coating or crust, usually of manganese and iron oxides, that forms on rocks, pebbles, etc., when exposed to weathering in the desert. Also called desert polish. [1900 05] * * * or patina Thin, dark red to black mineral coating… … Universalium
Rochester Rock Art Panel — Infobox protected area | name = Rochester Rock Art Panel caption = locator x = 64 locator y = 84 location = Emery County, Utah, USA nearest city = Emery lat degrees = 38 lat minutes = 54 lat seconds = 11 lat direction = N long degrees = 111 long… … Wikipedia
Aeolian processes — Aeolian (or Eolian or Æolian) processes pertain to the activity of the winds and more specifically, to the winds ability to shape the surface of the Earth and other planets. Winds may erode, transport, and deposit materials, and are effective… … Wikipedia
Oxidizable carbon ratio dating — is a method of dating in archaeology and earth science that can be used to derive or estimate the age of soil and sediment samples up to 35,000 years old. The method is considered by some to be experimental, and it is not as widely used in… … Wikipedia
patina — A general term for a colored film or thin outer layer produced on the surface of a rock or other material by weathering after long exposure. Compare: rock varnish. GG … Glossary of landform and geologic terms
Places of interest in the Death Valley area — A view from Zabriskie Point Places of interest in the Death Valley area are mostly located within Death Valley National Park in eastern California. Contents 1 Ama … Wikipedia
