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porphyry, igneous rock

(Encyclopedia)porphyry pôrˈfərē [key], igneous rock composed of large, conspicuous crystals (phenocrysts) and a groundmass in which the phenocrysts are embedded. Some authorities consider the expression “porp...

Little Belt

(Encyclopedia)Little Belt: see Store Bælt and Lille Bælt, straits, Denmark. ...

Little Dipper

(Encyclopedia)Little Dipper, familiar configuration of stars in the constellation Ursa Minor (see Ursa Major and Ursa Minor). ...

Red Rock chicken

(Encyclopedia)Red Rock chicken, the only chicken still popular to any large extent in the United States today for both meat and eggs. It resulted from a cross between a Rhode Island Red male and a Plymouth Rock fem...

rock carvings and paintings

(Encyclopedia)rock carvings and paintings, designs inscribed on rock surfaces and huge stone monuments in many parts of the world by prehistoric or preindustrial peoples. They have been found on every continent and...

Alaska North Slope

(Encyclopedia)Alaska North Slope or Arctic North Slope, region, N Alaska, sloping from the Brooks Range N to the Arctic Ocean. In 1968 large petroleum reserves were found in the Prudhoe Bay area. In 1977 the 800-mi...

Steep Rock Lake

(Encyclopedia)Steep Rock Lake, 4 mi (6.4 km) long and 3 mi (4.8 km) wide, SW Ont., Canada, W of Lac des Mille Lacs. It is the site of important iron ore mining. Part of the lake was drained to facilitate the mining...

North Carolina

(Encyclopedia)CE5 North Carolina, state in the SE United States. It is bordered by the Atlantic Ocean (E), South Carolina and Georgia (S), Tennessee (W), and Virginia (N). ...

Rock Creek Park

(Encyclopedia)Rock Creek Park: see National Parks and Monuments (table)national parks and monuments (table). ...

Little Turtle

(Encyclopedia)Little Turtle, c.1752–1812, chief of the Miami, born in a Miami village near present-day Fort Wayne, Ind. He was noted for his oratorical powers, military skill, and intelligence. He was a principal...