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England's Rock Art on the Web Access to the ERA database containing over 1500 records of rock art panels with images and 3D models. Tassili N'Ajjer, Rock Art of the central Tassili N'Ajjer (Tamrit, Sefar, Tin Tazarift, Jabbaren) Uweinat and the Gilf Kebir, Rock Art of Jebel Uweinat and the Gilf Kebir plateau ("Cave of Swimmers")
The following is a list of rock types recognized by geologists.There is no agreed number of specific types of rock. Any unique combination of chemical composition, mineralogy, grain size, texture, or other distinguishing characteristics can describe a rock type.
The Dighton Rock is a 40-ton boulder, originally located in the riverbed of the Taunton River at Berkley, Massachusetts (formerly part of the town of Dighton).The rock is noted for its petroglyphs ("primarily lines, geometric shapes, and schematic drawings of people, along with writing, both verified and not."), [2] carved designs of ancient and uncertain origin, and the controversy about ...
Unakoti famously known as Angkor Wat of the North-East, [1] is a sculptural emblem and ancient Shaivite place that hosts rock carvings, figures and images of gods and goddesses. [2] The bas relief sculptures at Unakoti are on stylistic grounds ascribed to 7th to 9th Century CE, to the period of Pre- Manikya rule.
The earliest evidence of human habitation at Sigiriya is the Aligala rock shelter to the east of Sigiriya rock, indicating that the area was occupied circa 3000 BC during the Mesolithic Period. Aerial view of Sigiriya Rock Map of Sigirya archaeological site.
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A Petoskey stone is a rock and a fossil, often pebble-shaped, that is composed of a fossilized rugose coral, Hexagonaria percarinata. [1] Such stones were formed as a result of glaciation, in which sheets of ice plucked stones from the bedrock, grinding off their rough edges and depositing them in the northwestern (and some in the northeastern) portion of Michigan's lower peninsula.
Greywacke or graywacke (German grauwacke, signifying a grey, earthy rock) is a variety of sandstone generally characterized by its hardness (6–7 on Mohs scale), dark color, and poorly sorted angular grains of quartz, feldspar, and small rock fragments or sand-size lithic fragments set in a compact, clay-fine matrix.