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Stonehenge is a prehistoric megalithic structure on Salisbury Plain in Wiltshire, England, two miles (3 km) west of Amesbury.It consists of an outer ring of vertical sarsen standing stones, each around 13 feet (4.0 m) high, seven feet (2.1 m) wide, and weighing around 25 tons, topped by connecting horizontal lintel stones, held in place with mortise and tenon joints, a feature unique among ...
This erosional contact is between the underlying youngest Igneous suite of rocks of Precambrian age and overlying oldest sedimentary sequence of late Proterozoic to Eocene age. [2] Its geological significance led to it being declared a National Geological Monument. [1] [2] The igneous cycle has three phases namely, the volcanic, plutonic and ...
Devils Tower (also known as Bear Lodge) [8] is a butte, possibly laccolithic, composed of igneous rock in the Bear Lodge Ranger District of the Black Hills, near Hulett and Sundance in Crook County, northeastern Wyoming, above the Belle Fourche River. It rises 1,267 feet (386 m) above the Belle Fourche River, standing 867 feet (264 m) from ...
How we traced the origin of the sarsen stones. For premium support please call: 800-290-4726 more ways to reach us
Peaceful little Portuguese chapel of St. Thomas who was martyred on top of the mount made up of Charnockite rock formations. One of the earliest memorials in Chennai is the peaceful little Portuguese chapel on top of the hill (a flight of 132 steps leads to the summit) and built at the site where St. Thomas, the Apostle of India, was martyred in 72 A.D. and thereafter the hill has been ...
Stone Mountain through trees. Stone Mountain is a pluton, a type of igneous intrusion.Primarily composed of quartz monzonite, the dome of Stone Mountain was formed during the formation of the Blue Ridge Mountains around 300–350 million years ago (during the Carboniferous period), part of the Appalachian Mountains. [8]
The Giant's Causeway (Irish: Clochán an Aifir) [1] is an area of approximately 40,000 interlocking basalt columns, the result of an ancient volcanic fissure eruption. [3] [4] It is located in County Antrim on the north coast of Northern Ireland, about three miles (4.8 km) northeast of the town of Bushmills.
Bornhardts are commonly composed of igneous rocks, [4] often granites, [4] [5] but examples of gneiss, quartzite and arkose bornhardts exist. [5] The Sugarloaf Mountain of Rio de Janeiro is a typical example of this landform and is the origin of the common bornhardt nickname "sugar loaf". [6]